cad in arcgis - s3.amazonaws.com specification for dwg ... ymicrostation requires a seed file for...

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Jeff Reinhart, ESRI Software Products Phil Sanchez, ESRI Software Products EGUG 2008

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Page 1: CAD in ArcGIS - s3.amazonaws.com Specification for DWG ... yMicroStation requires a seed file for design file creation ... CAD in ArcGIS Created Date:

Jeff Reinhart, ESRI Software Products

Phil Sanchez, ESRI Software Products

EGUG 2008

Page 2: CAD in ArcGIS - s3.amazonaws.com Specification for DWG ... yMicroStation requires a seed file for design file creation ... CAD in ArcGIS Created Date:

Workshop agendaReview CAD solutions

Desktop CAD

ArcGIS for AutoCAD

Mapping Specification for DWG (MSD)

Questions/Discussion

Page 3: CAD in ArcGIS - s3.amazonaws.com Specification for DWG ... yMicroStation requires a seed file for design file creation ... CAD in ArcGIS Created Date:

Key points regarding ESRI’s CAD support

ArcGIS CAD data support is core technology‘Out of the box’

Does NOT require an extension

CAD data can be directly read by ArcGISDoes NOT require any conversion

Behavior similar to other feature datasets and classes

Available at all license levels

Supported file formats and versions:AutoCAD DWG/DXF: Release 12 ‐ 2008

MicroStation DGN: 5.x – V8

Page 4: CAD in ArcGIS - s3.amazonaws.com Specification for DWG ... yMicroStation requires a seed file for design file creation ... CAD in ArcGIS Created Date:

CAD data model in ArcGIS

Geometry Attributes

Coordinate System/Projection

CAD data is comprised of:

World File

CAD entity geometry is represented as GIS feature geometry

CAD data can be reprojected to overlay with other GIS layers

CAD drawings can be transformed from local coordinates to real-world location

CAD properties and database links are stored in attribute tables

ABC

Page 5: CAD in ArcGIS - s3.amazonaws.com Specification for DWG ... yMicroStation requires a seed file for design file creation ... CAD in ArcGIS Created Date:

CAD data structure in ArcGIS

Parcels.dgn

Annotation

Multipatch

Parcels.dgn

Point

Polygon

Polyline

Parcels.prj

A CAD dataset contains feature classes and a CAD drawing dataset:

text, tags, and attribute definitions

polygons and is useful for 3D representation

drawing dataset represents the entire CAD file as a single layerpoints, blocks, and cells

lines, polylines, and arcs

closed areas such as polygons, ellipses, and circles

Projection files define a coordinate system for a CAD dataset. They are recommended but not required.

Page 6: CAD in ArcGIS - s3.amazonaws.com Specification for DWG ... yMicroStation requires a seed file for design file creation ... CAD in ArcGIS Created Date:

Coordinate Systems and Projections

Coordinate SystemsCAD drawings may not initially have one defined

Not required ‐ but recommended

Select, create or import from other dataset

Projection filesStores coordinate system info

Created in ArcCatalog

Can be copied and reused for other  CAD files

Page 7: CAD in ArcGIS - s3.amazonaws.com Specification for DWG ... yMicroStation requires a seed file for design file creation ... CAD in ArcGIS Created Date:

Georeferencing (Transformations)

Two‐point Similarity transformation method  (Georeferencing toolbar)

Scale, Rotate, and Translate

Aspect ratio always maintained

Cannot skew or ‘rubber sheet’ CAD drawing

Transformation managed by World FilesWorld file must use CAD file name prefix

Must also reside in same folder

Not required for spatially accurate CAD drawings

Not all CAD drawings need to be transformed in ArcGIS

Page 8: CAD in ArcGIS - s3.amazonaws.com Specification for DWG ... yMicroStation requires a seed file for design file creation ... CAD in ArcGIS Created Date:

World FilesWorld Files

File based, two point transformation for CAD dataUses the .wld file extensionSimple text file containing two lines with two pairs of coordinate values:<From X1, From Y1> <To X1, To Y1><From X2, From Y2> <To X2, To Y2>

Page 9: CAD in ArcGIS - s3.amazonaws.com Specification for DWG ... yMicroStation requires a seed file for design file creation ... CAD in ArcGIS Created Date:

DemoGeoreferencing

Page 10: CAD in ArcGIS - s3.amazonaws.com Specification for DWG ... yMicroStation requires a seed file for design file creation ... CAD in ArcGIS Created Date:

ArcGIS has conversion tools for both directions

CAD to Geodatabase

Geodatabase to CAD

Tools available inArcMap

ArcCatalog

ArcToolbox supports various workflows for data conversion

Which is the right tool for you?

Data conversion

CAD

ArcGIS

Page 11: CAD in ArcGIS - s3.amazonaws.com Specification for DWG ... yMicroStation requires a seed file for design file creation ... CAD in ArcGIS Created Date:

CAD to Geodatabase tools•ArcMap

• Export Data• Copy & Paste (Edit session)

•ArcToolbox ‐ Geoprocessing• Copy Features• Feature Class to Feature Class• Feature Class to Geodatabase• Import CAD Annotation

Page 12: CAD in ArcGIS - s3.amazonaws.com Specification for DWG ... yMicroStation requires a seed file for design file creation ... CAD in ArcGIS Created Date:

Geodatabase to CAD tool: Export to CAD

Output features to native CAD format 

DGN (V8 only)

DWG/DXF (R14 to R2007)

Various levels of complexityGeometry only

Standardized entities

Preparation toolsAdd CAD Fields

Add Field

Page 13: CAD in ArcGIS - s3.amazonaws.com Specification for DWG ... yMicroStation requires a seed file for design file creation ... CAD in ArcGIS Created Date:

Seed Files

Blank template used to define a new file

Adds additional control for CAD drawing creationSymbology; Geometry; Layer/level structure

CAD standards

Used to control Blocks or Cell definitions utilized by Export to CAD

MicroStation requires a seed file for design file creationDesign plane, appropriate dimensions, units and origin, 2D or 3D

Page 14: CAD in ArcGIS - s3.amazonaws.com Specification for DWG ... yMicroStation requires a seed file for design file creation ... CAD in ArcGIS Created Date:

DemoExport to CAD

Page 15: CAD in ArcGIS - s3.amazonaws.com Specification for DWG ... yMicroStation requires a seed file for design file creation ... CAD in ArcGIS Created Date:

ArcGIS for AutoCADProvides access to ArcGIS Server map services

Control map display

Identify map feature attributes

Page 16: CAD in ArcGIS - s3.amazonaws.com Specification for DWG ... yMicroStation requires a seed file for design file creation ... CAD in ArcGIS Created Date:

ArcGIS for AutoCAD

GIS Server

Web MapViewer

Desktop ArcGIS forAutoCAD Mobile Enterprise

Service Bus

OpenAPIs

Author

Serve

Use

Desktop

Page 17: CAD in ArcGIS - s3.amazonaws.com Specification for DWG ... yMicroStation requires a seed file for design file creation ... CAD in ArcGIS Created Date:

Map Service toolsMap Services

Georeferenced 

Projections on‐the‐fly

Cartographic GIS symbology

Dynamic/On Demand display 

Scale‐dependent display

ArcGIS Server data management

Database access: IDENTIFY map service features

Page 18: CAD in ArcGIS - s3.amazonaws.com Specification for DWG ... yMicroStation requires a seed file for design file creation ... CAD in ArcGIS Created Date:

Mapping Specification for DWG (MSD)

What MSD is…Is a specification developed by ESRI for coding information in DWGs 

Used by ArcGIS 9.3 +

AutoCAD data structuresCoordinate System Defined

Feature Layer Filter Criteria

Attribution Schema

Attributed Entities

What MSD is NOT…Data Standard

New File Format

Software Dependent

Custom Objects

Page 19: CAD in ArcGIS - s3.amazonaws.com Specification for DWG ... yMicroStation requires a seed file for design file creation ... CAD in ArcGIS Created Date:

ArcGIS for AutoCAD + MSDProvides ability for users to

Read ArcGIS data in CAD systems

Organize and attribute CAD drawings for use in ArcGIS

Solves the question ‘How do I export my feature attributes to a CAD drawing?’

Available in the next ArcGIS for AutoCAD release (Q4 2008)

Page 20: CAD in ArcGIS - s3.amazonaws.com Specification for DWG ... yMicroStation requires a seed file for design file creation ... CAD in ArcGIS Created Date:

MSD Feature Class ToolsTools to manage feature classes in DWGs

Define, Modify, Delete

Feature Classes based on queriesEntities properties control feature class participation

Schema definitionAdd fields

Page 21: CAD in ArcGIS - s3.amazonaws.com Specification for DWG ... yMicroStation requires a seed file for design file creation ... CAD in ArcGIS Created Date:

Mapping Specification for DWG: Export to CAD

Source Geodatabase

Output DWG Pre-9.3

Output DWG @ 9.3

Page 22: CAD in ArcGIS - s3.amazonaws.com Specification for DWG ... yMicroStation requires a seed file for design file creation ... CAD in ArcGIS Created Date:

MSD Feature Class Tools

1. New feature class name and type

2. Specify CAD properties

3. Use property selectors

4. Define schema and default values

Page 23: CAD in ArcGIS - s3.amazonaws.com Specification for DWG ... yMicroStation requires a seed file for design file creation ... CAD in ArcGIS Created Date:

DemoArcGIS for AutoCAD