Working with CAD Data in ArcGIS

This session will focus on best practices for working with CAD data in ArcGIS. Topics will include georeferencing CAD feature classes in ArcMap, using geoprocessing tools to import CAD datasets to the Geodatabase, and exporting Geodatabase feature classes to CAD drawings. This session will also cover ESRI’s Mapping Specification for CAD and the ArcGIS for AutoCAD plug-in application.

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00:01Welcome. Good afternoon and welcome to the Working with CAD Data Technical Workshop.

00:04My name is Phil Sanchez, and today I'm joined by my colleague Jeff Reinhart.

00:08We're both members of the CAD software development team based in Esri, Redlands, and thank you for coming.

00:15So our agenda for today is to cover the following topics.

00:19So this, it's probably obvious that this technical workshop is going to focus on how you can integrate your CAD data in ArcGIS.

00:26And we're also going to show some best practices on how to prepare CAD data for use in ArcGIS.

00:32So I'll provide an overview about how Esri supports CAD data, how we represent CAD datasets in ArcGIS.

00:39Then we'll shift over to more workflow-based topics using CAD feature layers in ArcMap.

00:45We'll cover how to convert CAD data to the geodatabase and also vice versa, how to write out geodatabase content to CAD formats.

00:54And then lastly, we're going to cover a little bit on working with map services.

00:58So ArcGIS map services inside of CAD, both AutoCAD and MicroStation.

01:04So I think most of you already know what CAD drawings are.

01:07For those of you that are new to working with CAD, they are a file-based data source that primarily contains geometry.

01:15It's going to represent some real-world objects.

01:18It's also going to contain a lot of symbology.

01:20So symbology and CAD files represents information.

01:24CAD drawings are organized in layers or levels, depending on if you're using MicroStation or AutoCAD.

01:29And they can have additional data attached to them, additional data that we want to show how you can leverage inside of ArcGIS.

01:38So more importantly for all of you GIS users, how is CAD important in the geospatial context?

01:45Well for one, based on what we've seen over the years is that CAD drawings are one of the largest sources of data for GIS...

01:52...and that ranges from everywhere from like content that defines a basemap to a lot of different content for areas that are listed here...

02:02...in terms of the industries like such as surveying and cadastre, for infrastructure, for civil engineering...

02:08...and the design fields such as architecture.

02:11There's some new CAD formats emerging these days, what they call building information models...

02:16...so that's becoming part of CAD in the geospatial context.

02:21And also, all together this has helped comprising what we seen lately is in the 3D virtual cities.

02:27So CAD is a very integral part of geospatial data, and our goal and our desire is to provide support for that inside of ArcGIS.

02:38So Esri, that's right, Esri has provided support for CAD data for quite some time...

02:44...going back to actually the ArcInfo workstation day, working with supporting .dxf files, IGDF, IGDS files...

02:52...so we have a long history with working with CAD.

02:55Back then, it required some conversion, but in present day with ArcGIS 10 or 9.3.1, or even earlier, starting at ArcGIS 8...

03:03...this is all out-of-the-box functionality.

03:07So you don't have to have an extension to work with CAD data.

03:09You can directly access it in ArcMap.

03:13In regards to the file formats that we currently support, we support the AutoCAD .dwg and .dxf file...

03:21...currently up to AutoCAD 2011.

03:24So for those of you that have the latest version of AutoCAD, you can use that in ArcGIS 10.

03:299.3 was supporting up to 2009, so we've added support for that at 10.

03:34For MicroStation, we support up to version 8, but going all the way back to the early versions of DGN...

03:40...so the 5.x, the version 7, and so forth.

03:45Bentley hasn't come out with a new DGN version, but when they do...

03:49...same with Autodesk, we always strive to keep up with those new releases

03:53We'll update our libraries, either get that out in a service pack or the next general release.

03:56So it's always a constant process for us.

03:59But those are the two main CAD formats that we do support, and I think out in the industry...

04:03...we see those are the two main software programs that you all are using.

04:07Another interesting note about our tools, all CAD geoprocessing tools are available at all license levels.

04:14So previously, we did have some tools that were at the ArcInfo level.

04:17That has all been brought down to the ArcView level.

04:19So anything that we show today that's specific to CAD geoprocessing...

04:23...you have access to that regardless what license you have for ArcGIS.

04:30So the way that we represent CAD datasets in ArcGIS can be looked at in terms of some items or a container of items.

04:38Now, first and foremost is we support geometry, so that's going to be your points, your lines, your polygons, or annotation.

04:46I think we support most of the common entity types.

04:49There's always room for improvement there.

04:53We also support attributes, so entities always have attributes that are inherent to them called CAD properties.

04:58You're going to get that in the CAD feature class by default.

05:01We also support other attributes, what we would call user defined such as tags and blocks, attribute definitions, and so forth.

05:09So that combines geometry with your attributes.

05:12Now on the bottom section here, we have coordinate system listed, so when you first use CAD data in ArcGIS...

05:19...most likely it's not going to have a coordinate system defined, but we have tools that allow you to do that.

05:23So that's going to allow you to align your CAD datasets with other GIS data inside of ArcMap...

05:28...so that we can reproject to the proper coordinate location.

05:32We also have a concept of a world file.

05:34So world files are text files that are used to define transformation.

05:40In cases where you need to position a CAD drawing, you know, again to align with your GIS data.

05:47So sometimes you see CAD drawings.

05:50Maybe they were created at 00.

05:52I don't know, maybe you guys have dealt with that before, so we have ways to deal with it.

05:57In regards to how a CAD feature dataset appears in the catalog window, it's a read-only representation of a single CAD file.

06:06So it's a one-to-one relationship so you have a CAD drawing, one CAD drawing equals one CAD feature dataset.

06:13And those CAD feature datasets are similar to a geodatabase feature dataset.

06:16They're going to have feature classes that are organized by geometry type.

06:20So every time you browse those in the catalog tree or you add data...

06:24...you're always going to notice you have feature classes inside that dataset.

06:28You can work with individual feature classes.

06:30You can work with the entire dataset.

06:32Depends on what you're doing.

06:34And, again, our spatial reference are defined by external files, PRJ file in the world file.

06:41So let's talk about how you use CAD data in ArcMap.

06:45So there is different scenarios and it really depends on what your project needs are.

06:51It can be...you can use CAD data simply as a background for visualization in terms of to provide additional cartography to your map.

07:00You can use CAD data as input to geoprocessing tools.

07:03So if you need to do additional things to your CAD layers, it's fully supported by the geoprocessing framework.

07:09Then lastly, conversion.

07:10Conversion's a very popular task, and we know that a lot of you need to convert your data, migrate it to the geodatabase.

07:20So when you add a CAD dataset or CAD feature layer to ArcMap...

07:23...you're going to see it rendered similar to how it would appear in AutoCAD or MicroStation.

07:28And that's because we're using the CAD properties that represent symbology.

07:32We're using those properties to render the features inside of ArcMap.

07:36And we do that by a CAD style that's installed on your hard drive.

07:41So that's something that you'll always have access to.

07:45Of course you can change your symbology to suit your needs...

07:48...so you can always modify features based on a certain field type or field values.

07:55The good thing is you can always restore the appearance of the CAD dataset back to its original appearance.

07:59We have a Restore Original button.

08:01It might be hard to see on that dialog, but that's located on the Symbology tab when you open up the CAD feature layer properties.

08:07So you can always revert back to the original appearance.

08:11We support most of the common line types and line styles from AutoCAD and MicroStation...

08:15...but there may be cases where you don't see, it's not exactly 100 percent matched.

08:19So for instance, custom line styles is something we don't support, but we're always looking at that, proving that in the future.

08:29[Inaudible audience question]

08:31Yes. You just add data.

08:33You browse to a folder and add a CAD feature dataset right to ArcMap.

08:38So, that's what we consider a direct read workflow, just adding it right to the map.

08:44So I mentioned something about CAD properties earlier that we do support properties as attributes.

08:51So every CAD feature class that you access in the catalog tree or in ArcMap...

08:58...it's always going to have an attribute table associated with it.

09:00And, again, some of these properties that are represented as attributes, they're always going to be part of the drawing.

09:06An entity is always going to have a color.

09:08It's always going to have a layer that it's assigned to and so forth.

09:11And so that's always going to be present in the attribute table which is useful for performing queries.

09:19Maybe you want to isolate a certain set of the CAD feature class inside of maybe in ArcMap or for a geoprocessing input.

09:27So that's available.

09:28We also support user-defined data such as block attribute definitions and tags for MicroStation, even MS links.

09:36So for those of you that have some legacy DGN data, if you open up the feature class...

09:41...you'll notice that there's some MS link fields, MS catalog...

09:44...so you can always use those fields to join to other external tables that you are working with at your organization.

09:54Do you support extended attributes?

09:57The question is, do you support extended attributes like extended entity data?

10:02We do in a geoprocessing tool that has been deprecated at 9.3.1, so I think...there's only a few users...

10:12...we always ask users who uses X data.

10:15In fact, who uses X data still?

10:17Okay, so we still have a couple people.

10:21So, at 10, tools that you do have that, for instance, the Import From CAD tool supports X data.

10:27If you have that tool in a model that you continue to use, that model will still work in 10...

10:32...so you'll still be able to access that X data.

10:34We're looking at ways to provide equivalency between the deprecated tools that we've, you know, previously deprecated in older versions...

10:40...and where we're at with 10, so if you do have issues, we can always, you know, talk offline and figure out new solutions for you.

10:47And actually, we have a new data structure that we want to talk about today that might address migrating from X data to a newer technology.

10:57So MicroStation has a concept of tags that can be very powerful, very useful for you for MicroStation users...

11:06...that allows you to define basically fills and fill values inside of a DGN file.

11:12Do ArcGIS by default will read those tags as fields and those tag values as attributes...

11:17...and so you can actually get more information from the CAD drawing than just a standard...

11:21...you know, symbols or symbol properties.

11:24So that's something that if you do have control of the way that the DGN file is generated...

11:31...perhaps you can provide requirements to your contractors or another group within your organization.

11:36Tags are your friends if you're an ArcMap users.

11:40So, that's kind of a best practice that we recommend.

11:42We know that not everybody has control of how the CAD data is created.

11:46You know, it's not your fault that you have 25,000 entities on layer zero, but, you know, there're ways around that.

11:51So, in regards to AutoCAD, there's a concept of blocks and attribute definitions.

11:57And similar to how MicroStation tags work, it's kind of the same concept...

12:02...where you do have a field and an attribute both in AutoCAD and ArcGIS.

12:07So this is just a screen shot showing on the left-hand side...

12:10...and previously the left-hand side was MicroStation and now AutoCAD property windows.

12:16And then we're just looking at identifying ArcMap.

12:17And you can see that you get the same information carried over from one application to another.

12:23So again, it's a best practice.

12:26It's possible to have that information generated for you when you use it inside of ArcGIS.

12:31It's always going to benefit in the long run.

12:35Okay, so to answer your question about X data, we now have a new technology called the mapping specification for CAD...

12:41...and you might hear us abbreviate it as MSC.

12:45We developed this framework at 9.3.1, and the purpose is to provide a way for AutoCAD users...

12:51...to define GIS feature classes inside their drawing and assign attributes to those...

12:56...and also to embed a coordinate system inside the drawing.

13:00So earlier I mentioned when you bring a CAD dataset inside of ArcMap...

13:04...it's not going to have a coordinate system most of the time.

13:06With the mapping specification for CAD, you can prepare this information inside of AutoCAD...

13:12...and when that drawing is delivered to a GIS user, ArcGIS user, they'll have access to this information.

13:18So the purpose here is first to provide better interoperability between AutoCAD and ArcGIS...

13:29The goal here is to leverage existing data.

13:31So take your CAD standards and basically use that information to basically create feature classes, queries inside of your drawing.

13:34...and our goal is not to force CAD users to change the way that they work.

13:41Our ArcGIS Desktop tools recognize them, and then going out back to CAD or Export To CAD tool in the geoprocessing toolbox...

13:48...that also will create, by default starting at 9.3.1, these additional features classes.

13:53So for those of you that have exported out to an AutoCAD file at 9.3.1, if you ever look at that drawing back in ArcMap...

14:00...you're going to notice, hey, I have all these extra features classes, and they're not just point, polyline annotation, and so forth.

14:06So that's a very useful technology that we want to promote.

14:10We're trying to get the word out for a best practice to attribute your data...

14:15...and organize your CAD data using that mapping specification for CAD.

14:20So here's an example.

14:21This is just a graphic showing if you have a line entity inside of AutoCAD...

14:25...of course it's going to have the standard properties that are assigned to it such as layer and color...

14:30...but you can also assign additional information such as if you have...in this case it's a let's say a water main...

14:37...you have material, diameter, and length, so that information's going to get carried over into ArcGIS through the drawing file.

14:44So this is, again, there's no charge for this.

14:48It's an open standard, so if you have AutoCAD developers...

14:52...if you don't want to use our products to develop this type of schema inside of your drawing, you can also just use our open API.

15:01So you can have a custom toolset to create these types of feature classes and coordinate systems...

15:07...inside your drawing inside of AutoCAD.

15:12Alright, so let's move on to another topic that's quite popular.

15:16Every year down in San Diego, we get a lot of questions about how do you georeference?

15:20How do you position CAD data?

15:22A lot of times it may be created in a local coordinate system.

15:26And that's okay, because we have tools to address this.

15:28Now ideally, it's always best if the drawing is in the proper coordinate location...

15:33...but we have ways to transform that data so that it does align with your other datasets.

15:41And that's...that's supported by the georeferencing toolbar.

15:44So this toolbar is available in ArcMap.

15:46It's the same toolbar that works for raster layers, and if you're also familiar with the editor spatial adjustment toolbar...

15:52...it's the same type of workflow.

15:54You can interactively move the drawing around.

15:58But it...really the real, I guess the accurate, more accurate workflow is to create control points...

16:04...that can define your deltas from your From location to your To location.

16:09And that's supported by world files.

16:11So I talked about that earlier.

16:13Basically, a world file is a simple text file that's going to contain those deltas.

16:17It's going to have your from X1, your from Y1, so it's basically two rows.

16:22So in ArcGIS, we support a two-point similarity transformation.

16:26If you need to perform additional adjustment methods, maybe even rubbersheeting.

16:31That's where you're going to need to convert your data to a geodatabase feature class to perform that type of transformation.

16:37But if you're talking about, if you want to maintain that aspect ratio and just need a reposition to line up with the other data...

16:43...the georeferencing toolbar can take care of that for you in ArcMap.

16:48Something that a lot of people don't know about.

16:50We have this...we introduced it I think back in 9.3, the concept of a universal projection and universal world file.

16:57So this is very useful if you have a large set of tiled CAD drawings, so a folder or workspace that has, you know, many CAD files, hundreds...

17:07...it'd be very tedious to go through and create a projection file for each, you know, drawing...

17:11...so by using the special prefix, Esri_CAD.prj in that workspace...

17:18...one projection file will reproject everything in the entire workspace, all the CAD drawings.

17:23And the same concept applies to the world file.

17:25So you can have...now the world file is special because they have to be tiled.

17:29If they're stacked, a word file for one drawing is not going to work for another drawing.

17:34But if they're tiled and if they're all created in let's say a local coordinate system...

17:38...that universal world file will be able to move them all in an ArcMap session.

17:43Now, something important to note is when we transform CAD data, we're not actually manipulating the drawing itself.

17:51The drawing stays intact.

17:52It's just the accompanying world file that's defining the deltas.

17:56So if you look at it in AutoCAD, if you transform it in ArcMap, and you take it back to AutoCAD...

17:59...and you say, wow, you know, I thought I transformed it, it's because we're not actually manipulating the geometry.

18:03So it's something to be aware of but, you know, maybe down the road we would look at some tools...

18:07Okay. So enough of me to talk here.

18:08...that would provide a transmission in the CAD drawing, but for now, it's just...it's just controlled by that external file.

18:20I'm going to pass things over to Jeff.

18:21He's going to do a demonstration of using CAD feature layers in ArcMap, what we call CAD 101.

18:26So he's going to cover some of the things I just talked about.

18:29Alright. I don't really need to do much.

18:34Phil covered everything, so keep going, Phil, that's good. Yeah. No.

18:38Okay, let's switch to me now.

18:42Okay, the first thing I want to point out is new at ArcGIS 10 is we have these tabs on the side.

18:47I'm sure you've seen them in other presentations, and just because it's CAD data, doesn't mean we participate any different.

18:54So one of the things we can do is in the Search tab which I really like, is I can do things in like CAD.

19:00I do a search on CAD, and I can find all my CAD data.

19:03Because I don't know what you guys, but I put it things, I can't find where it is, where is that CAD file?

19:07The same thing with tools.

19:08You can type in specific words that'll help you, so DWG.

19:13I can find all my DWG files that I have there.

19:16So in this case, what I want to show you guys is the Morey County.

19:25So if I enter that, there's Morey County file that I want to get.

19:31So quickly, I can add my CAD file that way as well instead of doing the traditional Add Data.

19:35It's just a nice way of organizing this stuff.

19:39Okay. Here's a CAD file, and as Phil touched upon already, it already looks different, doesn't it?

19:44Because it doesn't have just a point line polygon annotation.

19:50And also the island we've been doing demos and using my laptop...

19:53...so if anything blows up, it's because whoever's at the island wrecked my demo, so...anyway.

20:00So we have all these feature classes here and if you're used to looking at a point feature class for example...

20:06...we'll look at the field information.

20:09And at 9.3.1 and previous, you'd see a lot more fields present in a CAD feature class.

20:14That's because at 10, we've actually hidden by default some of these feature classes that Phil talked about...

20:19...being able to render CAD better that we use these fields.

20:23But generally to the users, most people don't need all the additional CAD fields, but if you do, they are available for you.

20:29So if you were to go here, and go Properties, I go to My Fields.

20:36Here's the large list of fields that we do expose that are available to you if you need them.

20:40So, for example, doc path.

20:42I want to export and I want to know where my file came from, so you can use those things.

20:47So you could turn them on or off, however you choose to use them.

20:51The other thing, too, is these mapping specification for CAD, the feature classes that he talked about.

20:56That's the additional feature classes, and if we turn off everything, and I turn on my polyline...

21:03...I'm going to get everything, because that's the entire CAD drawing, all the polyline geometry, and that's added there.

21:09But if we want to go look down here at these MSC feature classes that are organized, we look at roads, for example.

21:16And I'm only getting this road feature class.

21:18As you can see, it's rendered just like a regular CAD feature class.

21:22If we do an identify on it, pick a piece of text that flies out...

21:27...and we'll see here that we've got our traditional fields that I showed you as well, but all these MSC feature classes...

21:33...mapping specifications for CAD feature classes, you're going to get additional fields in there as well...

21:38...like code and object ID.

21:40If we pick something different, water fittings and identify that, you get the same thing.

21:47You're going to get our standard CAD feature classes but we're also getting these additional fields, these attribution fields.

21:53And as we go along further in the presentation, we'll show you how they're become really important...

21:57...for not just our GIS users, but the CAD users as well.

22:01So, that's what I wanted to do there.

22:04So the other thing is Phil talked about is doing georeferencing.

22:10Do you guys...just a show of hands...do people do a lot of georeferencing or have done georeferencing the CAD data?

22:15Or does it just come in perfectly every time?

22:18Yeah, me too.

22:22So [inaudible]

22:32Okay. So here's a typical scenario.

22:34You've brought some CAD data in or maybe you have CAD data already in your file.

22:39These are all these ones here.

22:41But, you've got one more to bring in.

22:43And you add it in, and you do...I can't find it.

22:48I added it to my spot right here, and I don't see it anywhere.

22:50I zoom full extent and what's that over there?

22:55As you start zooming in into the pinhole, and you eventually can't find it because it's lost, right?

23:01But, what I want to show here is that I've got this CAD file that's off in a zero-zero land or who knows where it is...

23:10...in some local coordinate system.

23:12What I want to do is I want to quickly and easily move the CAD file into the right location so that when I use it in ArcGIS...

23:19...it comes in the right spot.

23:23So I'm going to go the Georeferencing toolbar and that's just...I already have it on of course...

23:27...but that's just the georeferencing toolbar...same one that you use for raster.

23:31And if you really want to kill a demo, you pick the wrong target layer or you don't change it...

23:36...then you go and move and you move the wrong file, and it's in the wrong spot.

23:39But in this case, I want to get my 22, and because it acts on the dataset level, not just the feature class level...

23:46...they're all exposed but any one of them will do.

23:49So if I use my georeferencing, I can...the first thing I like to do is I like to fit to display...

23:55...because I want to move it into the location that I want it to come into.

24:01Oh, I killed the demo.

24:22Twenty-four. Which one is it?

24:23It's twenty-two.

24:27There we go, ah you know what?

24:30Sorry guys, I already georeferenced it.

24:33See, that's what happens when you show your computer on there.

24:35[Inaudible audience comment]

24:36Yeah, that's right.

24:37[Inaudible audience comment]

24:39Okay. So, going down to here.

24:46[Inaudible audience comment]

24:47What's that?

24:48You lost him.

24:49I'm not. I'm fixing my demo on the fly here is what we're doing right now.

24:54Maybe it's time for more questions.

24:55Yeah.

24:58Actually, anyone have any questions at this point? Alright. Hand back there.

25:02[Inaudible audience question]

25:08About georeferencing?

25:09Okay. So the question is, where can you find more information about georeferencing?

25:14To answer, yes. The help system would be the first place.

25:16We have, at 10 by the way, we've revamped our help system.

25:20We've reorganized it.

25:21There's a lot of good content in there.

25:24So that's where you want to check...go there first.

25:26We also have...a couple years ago we did a live training seminar for working with CAD data...

25:33...and we have a georeferencing video in there as well.

25:36We have the resource center that we hope to start posting some videos for some of the common workflows...

25:41...such as georeferencing or conversion.

25:43So please check our resource center as well.

25:46And then this demonstration or this technical workshop will be available postconference.

25:52So you can always look back and watch Jeff, you know, ruin the demo.

25:55Flounder. I just ruined it.

25:56And then, just don't do it that way, so it'll be good.

25:58[Inaudible audience question]

26:05Yeah, I think the best would probably be the help system, but we'll try to get a video up there soon...

26:09...so that you can just point a video, you know, point them to a link and they can watch that video.

26:12So that's, yeah, we know, we recognize that georeferencing is a very popular topic.

26:18So we'll work on getting some content out there.

26:21So, yes, sir.

26:23[Audience question] The slides you had with the georeferencing methods, I got the two-point similarity.

26:28Can you just tell me the rest of that list real quick?

26:31Yeah. So the question is, regards to the transformation methods, you saw the two-point similarity listed...

26:37...and that's all we do support, so that's just for CAD.

26:40So the other transformation methods would be supported by the spatial adjustment toolbar in the Editor.

26:46That would be in a fine transformation.

26:47It also supports a similarity transformation, but it also supports a piece-wise transformation.

26:51So that's that rubbersheeting that you would basically skew your data, so, you know, just start rubbersheeting all your CAD drawings.

26:58Your engineers are going to love that.

27:00Yeah.

27:01Start skewing arcs and circles, it's perfect, so.

27:04So I'll just go back in here. I messed up that other part.

27:07But what I can do is I can pick this 24A even though it's in the right spot, I'm going to actually move it around.

27:11I know that's bad, but, so what I can do is I've identified this 24A.

27:16I can, oops.

27:24I can move it around.

27:25I can [unintelligible]

27:26So imagine that this CAD file, we'll just imagine that this CAD file is not in the right location.

27:30So I can shift it, move it to another location, and I can do things like scale it as well and fit to display if I was moving it into my spot.

27:40So what I want to do here is...

27:42Turn off your autoadjust.

27:46So what I want to do is I want to use some control points.

27:48That would be the easiest way of doing this.

27:57So what I want to do is I want to use these two control points.

28:00As Phil mentioned, we only do two-point transformations, not multipoint.

28:04And the nice thing at 10 as well is snapping is on by default.

28:08So in the past, you were to zoom in, zoom in, zoom in trying to find the right exact spot where you want to move your CAD file.

28:13You can't, so...or it was difficult.

28:16So now you can use the snapping environment.

28:18It's on by default.

28:19We can click that as well and then we can go to our next piece and add the next line, snapping is on there and there.

28:27And then we can do things like update display.

28:31Let's see if it comes in.

28:33So then it comes in and you've georeferenced it.

28:35I was off on my snapping a little bit, but, so you can move the CAD file around.

28:39And once you get it where you want, you can update the georeference, and that's where you're going to save your world file.

28:48So then that's were I would save my 24 world file. Save it.

28:53And now anytime I'm able to use this CAD file, come back to use this CAD file in ArcGIS, it's going to come in in the right spot.

28:58Of course, if I opened up this CAD file in AutoCAD, it's going to be in the same location it was before.

29:04You're not changing that at all.

29:05It's just an external reference which Phil mentioned already.

29:09And that's pretty much it what I wanted to show.

29:13Come back next time on Wednesday and I'll have it working better.

29:23Alright, well thanks, Jeff.

29:24So one thing I do want to mention about snapping, at 9.3.1 and earlier, you would need to have an edit session active to snap...

29:30...but with just CAD data, that was somewhat difficult.

29:33You actually had to trick it and just add a shapefile or feature class, but now snapping's on all the time in ArcMap.

29:39So that's something to, you know, one nice thing about 10 is the snapping environment.

29:45So now we're going to move into the next topic.

29:48The next workflow-based topic is CAD data conversion or converting geodatabase or CAD features to the geodatabase.

29:57Now the geoprocessing framework is basically where this all happens.

30:03So when do you need to convert your CAD data?

30:05Well you need to convert it when you need to do things beyond what you've just seen...

30:09...when you need to edit data for instance or you need to incorporate that the features from the CAD drawing...

30:17...into your feature class for, let's say, cartographic representations.

30:22Other things that require a read-write, you know, environment.

30:28So there is the concept of just taking one CAD feature class and converting it straight to a geodatabase feature class...

30:34...a one-to-one.

30:35But there's also things that you want to do to get the most out of your CAD drawing.

30:40And so this graphic is showing some typical scenarios.

30:43Now, again, just like...talked about how you can get additional information from attributes...

30:49...well there's a lot of information in the CAD drawing, but when you add that to ArcGIS, it may not be ready for you...

30:55...ready to use the way that you would like to use it.

30:58So this is really fundamental GIS, but we always get a lot of questions about, how do I, you know, get this text, you know...

31:05...inside of my drawing, inside of my polygons.

31:06These are my parcel ID values or, you know, something that's a diameter that's next to a water main line or something.

31:14So we have tools in geoprocessing framework that allow these types of proximity function, spatial joins, for instance...

31:22...or to modify your geometry.

31:25You know, not all...sometimes when you see some polygons in AutoCAD, they look like polygons, yet in ArcMap...

31:30...they're not polygons, where's my field pattern.

31:32So we have tools that allow you to generate polygons from lines.

31:36So these are some of the common scenarios.

31:38In one [unintelligible], you know, this is where you'd want to perhaps automate some of these functions...

31:52So with CAD drawings, you can take one CAD drawing and create a brand new geodatabase...

31:56...many CAD drawings to create a new geodatabase.

31:59You can append to existing geodatabase feature classes with CAD features, and you can also merge them with other layers.

32:05So it really depends on how you need to integrate that CAD dataset into your geodatabase.

32:12So, again, talking about how CAD data is a very important source for geospatial data.

32:20The geoprocessing framework supports the ability to convert that.

32:25So just like many things in ArcGIS, there's always several ways to do something.

32:30So for instance, if you just want to quickly convert data inside of ArcMap, you can select your CAD feature layer in the TOC...

32:37...right-click and just go Export Data, and you're going to get output to a geodatabase feature class straight from the TOC.

32:44So you don't have to use a toolbox in that scenario.

32:47If you're editing, you want to just grab some geometry from a CAD feature class and paste it into your targeting editing feature class...

32:54...that's another possibility, too.

32:55You can also use that approach.

32:57But the more traditional ways are going to focus around ArcToolbox and the tools...

33:02...such as feature class to feature class in Copy Features and for annotations.

33:06So CAD annotation is special, and we have a tool called Import CAD Annotation...

33:10...that allows you to take your CAD text and convert it to real geodatabase annotation.

33:15For those of you that have ever taken some CAD text and converted it just using, let's say, Copy Features...

33:21...you don't see your text when you're done because it's actually taking the underlying geometry...

33:25...and persisting that in the output geodatabase.

33:28So for CAD, for CAD text, you always want to use Import CAD Annotation.

33:34Now at ArcGIS 10, we have a new tool called the CAD to Geodatabase tool...

33:37...and this tool is intended for to be used as a bulk loader.

33:42So it's basically a batch process where you would have, again, going back to that concept of a folder or workspace...

33:48...with a lot of different, lot of tile drawings, or a lot of drawings that you want to convert to the geodatabase...

33:55...this is the tool that you'd want to use.

33:56Now this tool's not for everybody, because there's cases where you may want to use the Append command...

34:03...to add to an existing feature class or you're just working with one single feature class.

34:07So this tool works at the dataset level.

34:09So you actually pick the drawings when you actually go browse and add the data.

34:16And what it does, it combines copy features, merge, and the Import CAD Annotation tool into a single tool.

34:22So this is a nice tool for those of you that have to convert a lot of CAD drawings into the geodatabase...

34:29...and want to save some time, want to do it in one operation.

34:32And, of course, this can also be used in ModelBuilder to automate the process.

34:36If you're going to run these processes on a daily or weekly basis, it does fully support that as well.

34:44Now on the flip side, we have tools that allow you to export geodatabase features to CAD.

34:50It doesn't seem...it seems like most people are taking CAD data into the geodatabase...

34:54...and it's a smaller portion of people that are actually exporting back out to CAD.

34:58But this is one of our very powerful tools called the Export to CAD tool.

35:02And this allows you to simply just drag a layer into the tool from ArcMap and simply just click OK...

35:10...pick a couple things such as the output type.

35:13We support writing to many different versions of AutoCAD including the current AutoCAD 2010 format...

35:19...which AutoCAD 2011 uses as well as MicroStation V8.

35:24So you have some options there.

35:27And you can also basically use it in a very simple fashion where you're just dragging layers on...

35:34...or you can combine it with additional information in the feature class.

35:38So the input feature classes, you can have fields in there that we call CAD reserve fields and these fields help define the output.

35:48So you can dictate which drawing files those feature classes will write to.

35:54For instance, you can have one feature class and write that out to say 10 different drawings...

35:58...if you're dealing with a large feature class.

36:01So there's various ways that you can leverage this tool.

36:05To take it to the next level, we support the concept of a seed file.

36:08So a seed file can, again, be very useful for interchanging data between GIS and CAD.

36:17In terms of the Export To CAD tool, the see file will dictate how that data's being created.

36:23So if you have a CAD standard, for instance, in your organization or a CAD department says...

36:30...we need to have CAD drawings constructed this way.

36:34So as a GIS user, you could use a seed file that they deliver to you that has predefined schema...

36:40...meaning that it has all the drawing layers defined.

36:42It has line styles, text styles, and so forth, even blocks, block attributes or cells, and so forth.

36:49So there's a lot of different ways to use see files.

36:52Now for MicroStation, they're necessary.

36:54For AutoCAD, they're optional.

36:56So if it's appropriate, that's always a good way to really have more control over how you export data to your CAD end users...

37:04...if that's a requirement.

37:05I know that sometimes you do have to take content in your maps, in your geodatabase...

37:09...and deliver it to a contractor or some engineering department that needs to work with CAD or can only work with CAD formats.

37:16Got a question.

37:17[Inaudible audience question]

37:21Yeah. Yeah, the question is, do have a CAD person send you the seed file and then you use that?

37:26And the answer is yes.

37:28That seed file is typically...you want it to be blank.

37:31It's not...it doesn't contain any entities, any geometry, but it does have, let's say just an example...

37:38...it has all your drawing layers defined.

37:40Now also, by default, the Export To CAD tool will take the feature class, like if you have...if you added three feature classes....

37:49...streets, parcels roads, and you export that without just using a default seed file or just no seed file...those feature classes...

37:58...that tool will create new drawing layers in the drawing called roads, streets, and utilities, and so forth.

38:06But you can use the fields, the reserve fields, to overwrite that.

38:10So you have a lot of control between seed files and your CAD reserve fields.

38:14But to answer you question, yes, you...typically it's going to be created by someone that has CAD...

38:20...and then you as an ArcGIS would use that to deliver drawings the way that they asked for them.

38:27Okay. So I'm going to pass things over to Jeff, and he's going to do another demo for CAD in geodatabase...

38:32...and as well showing how you can use Export To CAD.

38:39Okay, back again.

38:41So in this case, what I have here is actually some DGN files.

38:45But what I'm doing here with the DGN would work the same way with DWG or with AutoCAD.

38:50It doesn't make any difference.

38:52So if we look at these, they're tiled CAD drawings like Phil mentioned.

38:58We can turn those on.

39:00So a lot of...I assume most of the people here that you convert a lot of CAD or CAD data to GIS data?

39:06Is that correct in assuming that?

39:08Okay. Alright.

39:09So new at 10 we've added some quick reference or some shortcut menus to get at these tools that Phil was talking about earlier.

39:18So for example, if we zoom in a little bit tighter so we can see here under this CAD file...

39:22...you can see a pretty typical CAD file.

39:24It's got some parcels with some text.

39:26The text means something to whatever the line is next to it.

39:32So what we can do is do things like this where we got an annotation feature class...

39:37...if we turn that on and off, that's what that is.

39:39But what I'd like to do is convert it to annotation feature...I'd like to convert it to Esri annotation.

39:48So I can use the...did I miss it? Oh, sorry.

39:58I want to convert geodatabase to annotation.

40:01So what it does is it brings up a tool Phil has already talked about, and it's Import CAD Annotation.

40:07But the nice thing is I didn't have to go search for it or I didn't have to go find the tool.

40:11It's connected right to the feature class.

40:13So it's going to bring that annotation feature class and I want to put it out to a specific location, say...oops...

40:33...and we'll put it into Lots for example and we'll call it Test 2.

40:48So it's going to do that.

40:53...but sometimes when you export your CAD text annotation, does it come out the right size or the right color or the right...

40:59...you lose that symbology, right?

41:00So the important thing here is to try and do this from ArcMap.

41:03Run inside ArcMap because it takes advantage of the projection, the spatial reference that you have set...

41:09...along with the units that are set in your CAD drawing.

41:12And it'll just make the translation a lot easier on you.

41:15So in this case it's taking a default of a thousand, and we won't bother with any other...and we're going to run that tool.

41:28Just going to run the background, you can see back here.

41:37Yeah. I guess I should mention at 10, too, new at 10 is tools running in the background by default.

41:45So if we turn off those CAD files all together and I zoom into the annotation that I made...

41:50...you can see, if I just [unintelligible], you can see that we maintained and we brought the text across.

41:55And it looks very similar to what I did in CAD, so that's always a nice thing.

42:02The next thing I want to show is, if I go to one of the geometry feature classes, and I use the context menu as well...

42:09...and I go Convert CAD Feature Layer, that's going to bring up a tool that Phil talked about as well is Copy Features.

42:17So we can go do the same thing, and we'll call this polygon...oops...22...so we can do the same thing where we run that tool...

42:33...once again, running in the background by default.

42:35It's done. It adds it to the...and now we've created our feature class from our CAD data rather quickly.

42:50The next thing I should show you is the CAD To Geodatabase tool.

42:55I could go into my search window and change to my tools and find my CAD...I typed it before...

43:03...and it's going to find it here and I could add it that way.

43:05But another way to do it as well is to go here, back to one of my geometries...

43:13...and use another context menu that we've added a well is Convert CAD Feature Dataset.

43:18Now this isn't going to work on the feature class level but the feature dataset level, taking in an entire CAD drawing...

43:23...and it's going to do that bulk loading that we talked about.

43:28So if we get the second one in there as well and I want to output to an existing geodatabase in this tool.

43:45Oops. Too far in.

43:47So I add that in and then we'll just give it a, my 22.

43:51So it's going to create a dataset, and the same thing happens.

43:53Because that tool, if you think about, it incorporates import CAD annotation, the tool I just showed you before.

43:58It has the same reference scale information that we want to use along with the spatial reference.

44:03We're going to get the same kind of behavior.

44:05So if we execute this tool, once again it's running in the background.

44:17And then it adds it to it.

44:18So if I turn off my CAD files, you can see that now I've brought across...

44:24...rather quickly, I brought across this tiled CAD data into a single geodatabase feature classes, sorry.

44:32Alright. So this CAD GDB tool is something you can do at 9.3.1 right now.

44:38It's just that you would have to string it together, those tools in a model...

44:42...and to do this, this is just a really quick way of doing it without having to go into ModelBuilder.

44:46It's just kind of a productivity tool for that.

44:50Yes, question.

44:51Oh, yeah, go ahead.

44:52[Inaudible audience question.]

44:57Yeah. Question is, what is multipatch?

44:59It's a separate feature class geometry type.

45:03Typically, multipatches are going to be used in a 3D context such as ArcScene and ArcGlobe.

45:08With CAD data, a lot of times what you see in the polygon feature class, you're going to see in the multipatch feature class.

45:13The multipatches really has more implications when you're dealing with them inside of ArcScene.

45:19So it's basically like a feature class that supports 3D geometry.

45:23That's the way to look at it. Question.

45:25Go ahead.

45:26[Audience question] Can you import/export civil 3D object?

45:28Question is, can we import/export civil 3D objects? The answer is no.

45:36Another question.

45:38[Audience question] Earlier, in your introduction [unintelligible] one of your slides showed [unintelligible] had line features and converted into polygons.

45:52Yes.

45:53[Audience question] If the line feature isn't closed...

45:58That's good. So the question is, if I've got these lines and I want to make a polygon out of them from the CAD file...

46:04...but they're not quite closed or they're not snapped, what happens?

46:07And let me show you.

46:08That's one of the next things I'm going to work on right now through the demo, so if you hold on two seconds, I'll show you what happens.

46:15We planted him.

46:16Yeah, he's a plant. We'll pay you later.

46:19[Inaudible audience question]

46:23Okay. Good. Good.

46:24Okay, so the next thing like we talked about is creating polygons out of CAD lines.

46:28That's something that a lot of people want to do.

46:32So we have...there's actually a geoprocessing tool that available for that.

46:37If we go in here and we go back to our search and we look in our tools, and I always forget names...

46:43...so you just type in polygon and you look at it and you look down through here, there's Feature to Polygon.

46:47That's the tool I want to do, I want to use.

46:53So in this case, I want to use this tool and I want to input my CAD lines and with that point inside...

47:00...I want that to become an attribute of my polygon.

47:03But before I do that, let me show you something.

47:08Often you get in here, in these CAD files, and there's multiple text inside the CAD file.

47:13So it's difficult to figure out which one you want, but you know which piece of text that you're interested in.

47:17So one thing you can do to help streamline this is go to your Annotation feature class and Properties and do a query definition.

47:26So you use [unintelligible], if you've used it on, I'm sure I'm showing you something you know all about...

47:30...but if you do that and what I'm interested is all the text on level 39, and I can apply that.

47:37And I can go and do the same thing here, too.

47:39Properties, build my query.

47:51Okay, so now you can see that I'm getting just this text in the red or orange.

47:57That's what I want to be an attribute of my polygon.

48:00So now we go back to this tool, and we do Feature to Polygon.

48:07So now I'm going to bring in my polyline information because that's what I want to make the polygons from...

48:12...and it's reading that it's in meters. That's fine.

48:15I want to output it to...

48:27...and what I also want to do is I want to use the annotation from there as well because I want that to be the attribute.

48:34And since I've the query def on there already, it's only going to read that piece text from that level.

48:39So when I execute that...punch in this once again...going to run in the background when it's finished here.

48:45It's going to add it so I'll turn off that.

48:49Let's go a little bigger.

48:51So now if we zoom in...there so you can see created polygons from that.

48:56I do an identify on one of them and I get my polygon but I also get my extra linkage information I was after but the...

49:06...the ref name giving you the value of the 1851, and that was the attribute that you want to come across your polygon.

49:12So that's something that we get a lot of questions about.

49:15It's a simple way of doing it.

49:19Any questions on that?

49:22I'll go on to the next thing.

49:23Now that leads into your other question is, that's all find and good if my lines are all closed and I can make polygons under them.

49:29I'm fine. What happens if they're not?

49:33So if we go here and add a new map document, and I just happen to have some data like that.

49:49So this is a pretty small example, but I just wanted to give you an idea how you would do with your organization.

49:57At ArcGIS 10, they introduced tools that weren't necessarily considered for CAD, but they're really helpful for CAD users.

50:06So if I go back to my tools and I want to do some line extends...

50:17...so they're in the Editor toolbox.

50:18So unfortunately the tool is at an ArcEditor level license, so if you do have ArcView, you won't be able to do this without having this.

50:26So it's a pretty simple tool.

50:28But we're kind of stopped right there because it works off of feature class and it has to be writable.

50:33CAD is not writable; CAD's a read-only data source, right?

50:36So what we need to do first before we go on to that step is to take the polyline information and use our context again...

50:45...and we just want to create a shapefile...sorry, a shapefile, a feature class.

50:55And we'll turn off that now.

50:59So we've got our feature class so now a feature class is something that we can edit, and that's what that tool's going to work off of.

51:07So if we go back to our line extend, we could drag that tool in, that feature class in, I'm sorry.

51:16So here is an option on how many meters you want to extend the line.

51:22I've already measured this and I obviously made the data, so I know it's about 15, 14 and a half meters away from there...

51:28...so I know that I'm safe if I use 20 meters.

51:32That's my default, then we're going to extend extensions.

51:34So if I execute that tool, it's going to edit the data in place.

51:38So that's the other thing, too, is it's changing this data specifically.

51:42You're not writing out to new output.

51:43So it finished and extended...it closed up my lines right here, but I also have a problem where I've got some overshoots.

51:49Which sometimes...it's less common but it's something that you see as well.

51:55I can open up that, grab my saved feature class, use my same 20 tolerance, using that option.

52:04There, and now it's cleaned up that line as well.

52:07So then now you could run a feature to polygon on this and it would be a closed polygon and you can use this.

52:12Now saying all this, this is not...if you've already got topology in ArcGIS...

52:18...you also got more sophisticated tools and more things at your disposal.

52:23This is just a quick way to clean things up for CAD users, something...

52:26...that supply of CAD that isn't quite snapped as you would hope it would be.

52:33Any questions? Yeah.

52:34[Audience question] So theoretically if you used this method to take some portion of a floor plan drawing...

52:43...then [inaudible] the floor plan [inaudible] polygon [inaudible].

52:51Right. So the question is, you could take a floor plan type of drawing and use that...this tool...these combination tools...

52:58...to clean that up to close that off, and that's something you could do...

53:02...and that helps with CAD standards, too, because if you know that it's on a feature class that you can readily get at...

53:09...and just extend those lines and not necessarily the doors or whatever else that might be on there as well. So...

53:16Any more questions? Yeah.

53:18[Inaudible audience question]

53:25Okay. So the question is, did I start editing? Do I go to an editing session?

53:29And the answer is no.

53:30I didn't go an edit session.

53:31This is just a GP tool so it's acting on the whole feature class, and we're changing that on the fly and updating that feature class.

53:40It's not part of an editing session.

53:42If you do start an editing session, then you're probably going to be in more sophisticated rules and topology and things like that.

53:48This is just a quick way to clean up your data.

53:52Still do that in the Editor.

53:53Yeah.

53:54In this way, this is probably more geared towards doing a batch extend or trim for a feature class.

54:02And you can also probably use selection tools, right, if you have a certain criteria that you can search for...

54:06...then you can only select a certain number of features and then perform an extend on that.

54:10It's actually something we should probably try.

54:12Yeah. Yeah. That's good. So another question?

54:14[Audience question] I'm not a CAD expert in writing script, so [inaudible] out of MicroStation [inaudible].

54:30Are B-splines supported in MicroStation and ArcGIS 10?

54:34Yes.

54:35It's a...it's a...we're looking at each other because is kinda a good answer?

54:41[Inaudible audience question]

55:00That's a good question.

55:02[Inaudible audience question]

55:03So just to repeat the question.

55:04The question is, does ArcGIS 10 support B-splines from MicroStation?

55:10We know that...I know I've tested it with AutoCAD splines, and it does support them...

55:14...and when Jeff said kinda, it's because we're still tessellating the geometry so it's not coming in as true splines.

55:20We recognize that's not a complete solution, and we're still working on that in the future.

55:27[Inaudible audience question]

55:29Yeah. You just want some...and it's, I mean, will tessellated lines work for you?

55:33Would that be good enough?

55:35Would tessellated lines, little line segments?

55:37[Audience question] Yes.

55:38Then you're good.

55:39Are B-splines squared?

55:40At ArcGIS 10, that is supported where they're going to be tessellated obviously beyond this, we're out of time...

55:45...we'll look at having full support works, not tessellated, but that should be there for you in 10.

55:51You have a question, or you had a question.

55:53[Audience question] This may be an overlapping question [inaudible]...

55:57...how is ArcGIS handling arcs from [inaudible], creating arcs and ArcGIS converting to CAD from the MicroStation environment?

56:10[Audience question] Right now, [inaudible].

56:14So, and this is before ArcGIS 10.

56:19ArcGIS supports true curves coming from AutoCAD and MicroStation.

56:22So those would be elliptical arcs and circular arcs, circles and ellipses.

56:26So we do support that.

56:28The only time that, in fact we had a question at the island today, is that I lose my curve is what happens...

56:34...because that person was writing out to a shapefile.

56:36So as long as you go into a geodatabase format, geodatabase supports true curves.

56:41So whether you're bringing it in as a directory, you're going to see the curves so you'll be able to get the same area...

56:49...values if you do some calculations or when you do convert that to a geodatabase or if you convert it...

56:54...those true curves will also be preserved.

56:57[Audience question] Okay, so if I convert [inaudible] geodatabase format to CAD, [inaudible].

57:04So going the other way, you can...we do support curves...

57:07...but that's the case where you actually need to use the concept of CAD reserve fields...

57:11...and we have a field called End type, and if you populate End type with the proper element or entity type such as curve or arc or...

57:21Arc, yeah.

57:22I don't know the MicroStation terminology for all the curves in there, there's quite a bit, if you specify that...

57:27...you will get curves in the output.

57:31Okay, so let's hold off for a little bit. We're running way out of time here. We're way behind here.

57:36So I just want to do a quick export to CAD demo here, too.

57:40Who pushes GIS data out to CAD, like DGN or DWG?

57:45Okay, so there are few of you.

57:47I'll just run through this fairly quickly.

57:48I think it's an important part of the process, too, and I think more people should do it because...

57:52...we've all heard the talk of people saying, do I get a seed file from my CAD user so that I can get better CAD data?

57:59Well, exported CAD allows you to create a seed file that your CAD people can start with so that when you get this CAD file back...

58:07...you don't have to reposition it because it's in the right spot.

58:11You don't have to come with any more georeferencing talks.

58:13It just works for you.

58:14You're getting attribution that we'll talk about a little bit later.

58:17So here in this Riverside data that I have, I've got some parcels here.

58:24And the white ones are actually blocks with attribute definitions, and that's what the text is in here.

58:35But what I want to do is I want to, my end game is to take these feature layers and I want to put those to a CAD file...

58:43...these ones in the blue with a centroid.

58:45So I can use a tool like, I'm going to be old school for a moment, export to CAD.

58:56Export to CAD used to be an ArcInfo level license.

59:00Now it's ArcView at 9.3.1 and beyond, so everybody has access to this.

59:03So we can add in our parcel centroid and our parcel polygon.

59:08We're going to output to a DWG 2010 file.

59:13I could use a sed file here because with the fields that I'm using, I could export this out and create these blocks on the fly.

59:22Or else I can append to an existing drawing, but what I want to show you quickly on here is...

59:28...back on these input feature classes is we talked about entity field already, making curves.

59:34But one of the things you can use is Insert, and in Auto...

59:37...that's one of these CAD-specific fields that's understood by Export to CAD.

59:41It knows that Insert means block in AutoCAD for people who are there.

59:45And it knows that for the ref name, that's the name of my block, Parcel ID.

59:48And this APN and parcel ID are the attribution, the definitions off that block.

59:54So it's going to use those fields to drive the export to CAD...

59:58...and the same thing here where I've got some additional fields as well, this other attribution that we talked about...

1:00:04...the MSC type attribution. So.

1:00:15So we add them in.

1:00:16What I really want to do is I want to go to an existing CAD file, and it's this as-built file...

1:00:28...and now it's telling me, hey, you can't do that because it already exists.

1:00:31Well all I have to do is click my append.

1:00:33And now because I'm going to export it to the seed file, in essence, but it's in already existing file.

1:00:38It already has a blocked definition so it knows what a parcel ID is...

1:00:42...because it knows that if you give me a block that's parcel ID, I'm going to construct it this way.

1:00:48So we'll execute that tool.

1:00:50It's running here and it's created it.

1:00:52So you can see that it's now update my parcels into this CAD file.

1:00:56But let's look at it in AutoCAD, it's way more fun.

1:01:07[Inaudible audience question]

1:01:09What? Say...

1:01:10[Audience question] Why did it update...?

1:01:11Yeah, you saw it add [unintelligible], you can keep going there.

1:01:14Okay.

1:01:15At ArcGIS 10, we now...when you export to CAD, we now add that CAD drawing to the TOC by default...

1:01:21...so then you can verify if the output was valid.

1:01:25Is that what your question was or was it how did the CAD file get updated?

1:01:29[Audience question] No, how did ArcMap get updated?

1:01:30Oh, yeah, I'm sorry. Okay.

1:01:31[Inaudible audience question]

1:01:34We exported to CAD but we added to the TOC starting at ArcGIS 10.

1:01:38Just by default, it just adds it to the TOC.

1:01:40So if I look at this CAD file, now because we're running short on time, I would have showed you this already...

1:01:49...but the green ones polygons were already there along with the block attributes...

1:01:53...but if we zoom in here, the yellow ones are what I just created, and if I list them in AutoCAD...

1:02:01...you can see that it's a block name is parcel ID and there's the tag value of parcel ID, another tag value APN.

1:02:10So it's created these CAD files the way CAD people want them created. Right?

1:02:14[Audience question] In the seed file.

1:02:15It's right in the seed file.

1:02:16That's what drives that.

1:02:17So that's why exporting to CAD is pretty important for both directions, you know, for doing that kind of stuff.

1:02:24[Audience question] This started as a green going to parcel. Now then you added those layers and then you exported them back again.

1:02:32Right. Exactly. Yeah.

1:02:34So if you guys...we're at the islands all week and I know I had to rush through this and stuff...

1:02:38...you guys want to see this at the islands, come on down, we can show you this a lot more in detail.

1:02:43Happy to show you.

1:02:45Alright, Phil.

1:02:49Okay, thanks, Jeff.

1:02:50So, yeah, I think we are a little short on time, but we just want to cover one last section regards to map services.

1:02:58So many of you are probably already using ArcGIS Server to take your maps and publish them out to...

1:03:06...within your organization as web services or out on the Internet for other people to consume them.

1:03:12And so CAD is a part of that story as well.

1:03:16We have solutions that allow CAD applications, AutoCAD for instance, to be a client of ArcGIS Server.

1:03:24And we do this through this product called ArcGIS for AutoCAD, and that's a free download that's available on esri.com...

1:03:31...that allows you to connect to map services.

1:03:34With MicroStation, we don't have a product specific to MicroStation at this time...

1:03:38...but at MicroStation the newer versions like V8i do support the ability to connect to WMS.

1:03:44So in ArcGIS Server, if your map services are published with the WMS capability...

1:03:49...you're able to consume those map services inside of MicroStation.

1:03:53Now a little bit more about ArcGIS for AutoCAD...

1:03:56...this is also the platform or the application that you use to define your mapping specification for CAD feature classes.

1:04:03So it's basically there's two parts of the product.

1:04:06The other part is, as I mentioned earlier, accessed through ArcGIS Server content.

1:04:11So you can use map services in your drawing as a reference.

1:04:16Perhaps you want to see some imagery of some as-built or some recent updates to a particular project site.

1:04:23That information is accessible.

1:04:25If it's accessible as a map service, you can add that to AutoCAD using ArcGIS for AutoCAD.

1:04:30Some people we know that they use imagery as a basis for tracing some areas.

1:04:35Clearly you're not going to be doing some detailed editing with those types of map services...

1:04:40...for large areas such as some land use drawings or soils, that's already...we have some customers already using that.

1:04:48So, again, we're going to go back to Jeff and he's going to do another demo.

1:04:53We have time.

1:04:59Alright. So as promised, I was going to bring up Micro...sorry, going to switch it.

1:05:03As promised, I want to bring up MicroStation and Phil talked about WMS being supported for MicroStation.

1:05:10We don't actually have an ArcGIS for MicroStation client, but I just got some data today, and it worked.

1:05:17So I want to show it to you guys.

1:05:19So what I want to do here is I've already got a service that's published back in Charlotte.

1:05:27Phil gets nervous when I say that because it's a long ways away, we'll see how it works.

1:05:31Anyways, so what we want to do is...it is a WMS service that's been authored in ArcGIS...

1:05:37...but I want to use...I can use this raster manager and I've got MicroStation V8i here, so with V8 XM, I forget what version...

1:05:46...but V8 XM and V8i both support this.

1:05:49So if I open up this manager, and I go Attach a WMS, I can go to this WXWMS file and I'll show you what that is in a moment...

1:06:02...but, and I can attach it and close this, and now I have an image being served up on ArcGIS Server, and we'll let that spin...

1:06:17...but I want to show you what it is.

1:06:27So if we go to this file, which is that one, Open.

1:06:35You can see that it's just an XML file but what it's doing it's pointing at this version...

1:06:39...and it organizes it so that you can use this in MicroStation.

1:06:44So anyway.

1:06:45Which contains the URL.

1:06:46Which contains the URL.

1:06:48So in any case, now you can go into here and we'll let that refresh up.

1:06:51But that's the image service that's being used in MicroStation.

1:06:56Okay. And Phil is actually going to demo ArcGIS for AutoCAD now, but we'll do the switch.

1:07:04Any questions on anything so far while he gets set up?

1:07:10Here can you...

1:07:11Down here?

1:07:12[Audience question] Just real quick, you said when you exported out from ArcGIS to MicroStation [inaudible] the seed file...

1:07:17...how about the CEL file to honor this planned visualization you're pointing back into the CAD environment...

1:07:25...is that supported and vice versa when you're bringing in you support...

1:07:30Yeah, okay. So the question is, MicroStation has a .cel file, right?

1:07:34I don't believe CEL files are...maybe I'm wrong, I'm not sure about that.

1:07:39But CEL files exporting out right now we don't have support for those at the next release.

1:07:48We're calling it the MicroStation love release.

1:07:50We're going to spend a lot more time on the MicroStation side of things, because we've really been focusing on AutoCAD.

1:07:55And it's actually funny you guys because usually we come to these things and we ask how many MicroStation users...

1:08:00...and put your hands up again.

1:08:03This is the most we've seen in a long time.

1:08:04It's usually AutoCAD, a lot more AutoCAD, only a few MicroStation.

1:08:07So no. The answer is no we don't support those files but we will in the next release look at supporting...

1:08:13...more supporting MicroStation for exporting CELs and...

1:08:17And importing as well.

1:08:18[Audience question] [inaudible] can't the symbology in ArcGIS or what [inaudible] the same for hydrants or manholes [inaudible]

1:08:27Okay. Okay. Yeah. Good.

1:08:29Okay.

1:08:30Okay. Hold it for a second.

1:08:32I know we're getting close to finishing here.

1:08:35I just want to show ArcGIS for AutoCAD again.

1:08:37The session that follows this one at 3:15 is going to go into this product in a lot more detail.

1:08:43But just to give you a preview of that or just a quick overview, again, the story is that ArcGIS for AutoCAD...

1:08:51...is another client for ArcGIS Server.

1:08:53So this is a map service that I have running on this particular laptop that's running server.

1:08:59So here it is, it's a map.

1:09:00And it contains some city data or county, you know, basically a site plan for Murray County, Tennessee.

1:09:08So that's a map service.

1:09:09And you look here, it's got the layers and so forth.

1:09:12And so that's running on the server.

1:09:14Now if I switch back to AutoCAD, I have a drawing already for Murray County.

1:09:18Now one of the things...well the first thing I need to do here is load the application.

1:09:21So I'll just go ahead and load that up.

1:09:24And it's ArcGIS for AutoCAD.

1:09:25This is a build that or release that we're working on.

1:09:28It's going to be available in the near future.

1:09:31Now one thing that we could do here is add a basemap to the drawing.

1:09:37So if you want to see some imagery, that's something that is available from using this application.

1:09:46As that goes, we also want to access this map service.

1:09:49So for instance if you're an organization and you want to provide some content to your CAD users.

1:09:56So here's our basemap.

1:09:58You can see the drawing is aligned with it.

1:09:59So now you can actually see what types of real-world, you know, objects or as-built is currently, you know, at that particular site.

1:10:12Now if I...I'm going to go ahead and open up, I'm going to lose a little bit of screen here but I'll go ahead and turn that off.

1:10:18And now I'm going to actually do a more traditional connection to a server.

1:10:22So I want to actually look at the map service now.

1:10:24So if I connect, it'll make a connection to the server, and I have some map services that I can add.

1:10:31I'm going to add Murray County.

1:10:32So when I add that to the drawing, that's going to add this map service.

1:10:35So now if we zoom in, not only do we have a CAD drawing, we have some more information about it.

1:10:39So I can identify features, for instance, in the map service to get more information about, for instance...

1:10:47...maybe this building footprint and so forth.

1:10:50So this is a way that you can, for those of you that are publishing maps as map services right now...

1:10:57...that you can provide map service content to AutoCAD users.

1:11:02Now I guess what's the difference between doing that versus exporting some data?

1:11:05Well the nice thing about map services is that it persists all that rich cartography that's in the map.

1:11:11So I know a lot of people spend a lot of time creating nice maps that have very good cartography, labeling, and so forth...

1:11:18...and that's the same information that an AutoCAD user will be able to access using ArcGIS for AutoCAD.

1:11:24So see here, we get information about the features except for that one.

1:11:29I think that was the previous map service.

1:11:31Now earlier I talked about the mapping specification for CAD.

1:11:34So this is the other part of ArcGIS for AutoCAD that allows you to work with feature classes.

1:11:40So in this drawing, this has been created with the Export to CAD tool.

1:11:44So I have these additional feature classes in the drawing, so if I drop down we can get information about footprints, for instance...

1:11:50...that's buildings, and you look down below here, we have basically the schema definition.

1:11:55So I can create a new feature class.

1:11:57I'm going to call it Parcels and give it a polygon feature class.

1:12:03I can copy fields from additional feature class in the drawing or I can just add it and then manually do that on my own.

1:12:09So now I have parcels, feature class define.

1:12:11I'm going to go ahead and choose to pick all the features that are on a layer called Parcels, so I go, or Parcel.

1:12:18So I'll go ahead and add that.

1:12:20And now down below, I can actually start adding some attributes or some fields that are going to help define the information in this drawing.

1:12:28So I can add a field called Zoning, make it a text field, and so forth.

1:12:35I can add ID, make it an integer, add field.

1:12:40Now the nice thing about when you add, when you start defining a schema for a drawing...

1:12:45...you can actually use a default value or enter a default value.

1:12:49So if I want to type residential, press enter.

1:12:55Now I'm going to save the drawing.

1:12:56I'm going to turn off my map service so we can see this a little bit better.

1:12:59But now when I zoom in, I'm going to select a parcel.

1:13:04Now this is on Layer Parcel.

1:13:06Now if I open up the property sheet, AutoCAD's property sheet, we're going to select that and we should be seeing some attributes.

1:13:20And I probably didn't do something right.

1:13:22So the workflow is that you would define a feature class, you would assign, define a schema for it, add some attributes...

1:13:31...and then you'd be able to enter information.

1:13:34So then you'd have a CAD operator that'd be able to start adding information to this drawing, little bit...

1:13:41...oh, I don't think I have a...anyway.

1:13:44Well, of course that's not working, so, but, again, this is just a preview of this product.

1:13:50And I invite you to stick around for the next session.

1:13:55They'll show that in more detail.

1:13:57And, let me go ahead and finish up here.

1:14:01I must not have...oh, it's polyline. That's what it was.

1:14:09Alright. So. So just to finish up here, again, we know that not all of you have control of how the CAD data is created.

1:14:22But if you do, if you work with someone in your department that generates CAD data...

1:14:26...it's always best to request that they prepare it in certain ways it's going to benefit an ArcGIS user.

1:14:34One is, of course, have them draw it in the proper coordinate location.

1:14:37So that's always an important thing.

1:14:39If it's not, we have tools to address that.

1:14:42Logical layer and layer and level organization is always good.

1:14:45Again, sometimes you have all the entities on layer zero, kind of painful, but most, I think, nowadays...

1:14:51...everyone understands the importance of CAD standards about exchanging data between CAD and GIS...

1:14:56...and so that's not such an issue these days.

1:15:00You know, geometry connectivity, right.

1:15:02You want lines that snap to each other.

1:15:04And also ArcGIS for AutoCAD, this is more specific to AutoCAD users.

1:15:09We only support features in model space.

1:15:11So if you have any features in paper space, you're not going to see them in ArcMap.

1:15:15So our recommendation is to keep those title blocks, keep the legends in paper space.

1:15:21So earlier we talked about how do you get more information about working with CAD data.

1:15:27So we have a resource center.

1:15:28So for those of you that have checked out the ArcGIS.com site, we have a link to the resource center.

1:15:33We have our own page that we're working on, adding more content for get help information there, samples, some downloads.

1:15:41And we're working on getting more blog posts.

1:15:43So please check that out to see the latest information about CAD integration.

1:15:48Currently there is a course that's available that's provided by our educational services group.

1:15:54It's called Working with CAD Data.

1:15:56It's an instructor-led course and I provide the link there for those of you interested.

1:16:01It's similar to what we talked about today but goes in a lot more detail with exercises, and you have an instructor to ask questions.

1:16:08So it's a very good resource for anyone that wants to start really trying to work with CAD data more and is new to it...

1:16:15...and needs some more information about how do you perform these types of workflows.

1:16:18We also have a live training seminar.

1:16:19We did that a couple years ago but a lot of the same workflows still apply...

1:16:23...so that's a free resource available through the resource center.

1:16:27And also want to mention, one of our colleagues, Margaret Maher, some of you may have talked to Margaret in Support Services...

1:16:32...but she recently published a book called Lining Up Data in ArcGIS: A Guide to Map Projections.

1:16:38It's a very good book that talks about coordinate systems and projections, and she's very familiar with CAD...

1:16:42...and so there's a section in there that talks about how to create a custom projection for CAD files.

1:16:48So something that we see, especially down when you have conversions like ground-to-grid conversions...

1:16:55...working with surveying, and so she's very familiar with those topics, and it's definitely a good book to check out.

1:17:02Again, summary, you've seen various ways to work with CAD data, direct read...

1:17:06...conversion to the geodatabase or taking geodatabase to CAD.

1:17:11We have the mapping specification for CAD that allows you to organize CAD drawings...

1:17:17...or it lets CAD users organize CAD drawings for better use in ArcGIS.

1:17:21We always want to try to promote that.

1:17:23It's definitely a technology that can help streamline integration workflows.

1:17:29This new ArcGIS for AutoCAD version is coming late summer, early fall...

1:17:33...so we're going to have that supporting the new versions of AutoCAD, AutoCAD 2010 and 2011.

1:17:39And post 10, we have plans to develop a mapping specification for CAD for MicroStation.

1:17:44So we recognize that we have a lot of MicroStation users that need similar technology, similar functionality.

1:17:50So we want to provide that type of framework for our MicroStation group out there.

1:17:56In closing, I mentioned there's a workshop right after this.

1:17:58There's another workshop tomorrow, second offering of this workshop and Thursday as well, Room 3 and Room 6C.

1:18:05We're at the islands all week.

1:18:07One last reminder, please fill out those evaluation forms.

1:18:10And lastly, thank you very much for attending.

Copyright 2014 Esri
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