Tips for using and import CAD Data in ArcGIS
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Transcript Tips for using and import CAD Data in ArcGIS
Tips for using
and import
CAD Data in ArcGIS
Copyright © 2012 eGIS Associates, Inc.
All rights reserved.
1
Agenda
CAD Data Format
DWG, DXF, DGN
Using CAD Data as a layer in ArcMap
Tools & methods for importing CAD Data
Common Problems
Copyright © 2012 eGIS Associates, Inc.
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2
CAD Data formats
DXF & DWG = AutoCAD
DGN = Microstation
Commonly referred to as a Drawing File
Contains multiple entity types
Also stores graphics (layouts)
Some can store attribute information
Blocks
Object Data (Map & Civil 3D)
Can also reference other CAD files
Indicated by Blue Icons
Edit after converting to geodatabase FC
or shapefile
Copyright © 2012 eGIS Associates, Inc.
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3
CAD data formats
Contains multiple entity types
Points
Lines
Polygons
Attributes
Text styles
Plot layouts
Projection/Coordinate Systems
References to external files
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4
Layers & Levels
Primary organization
structure
Layers = DWG or DXF
Levels = DGN
Users can create an
unlimited number of layers
Can contain multiple feature
types
User defined attributes
Name
Color
Print
More
Copyright © 2012 eGIS Associates, Inc.
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5
On to a demo
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6
ArcGIS CAD to GIS Tools
ArcCatalog
ArcMap
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7
ArcCatalog
Convert to multiple
formats
Shapefile
Geodatabase
Simple Data Loader
ArcToolbox
Works in Catalog
Window
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8
ArcMap
More flexible than ArcCatalog
Also converts to multiple formats
Can use selections
Copy & Paste
Object Loader
ArcToolbox
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9
On to another demo
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10
ArcToolbox
Can be used from either
ArcMap or ArcCatalog
Tools can be used in
model or python script
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11
ArcToolbox –
Feature Class to Feature Class
Tool
Converts multiple
formats to GDB
Feature Class or
Shapefile
Can select features
using expression
Tool accessible
multiple methods
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12
Feature Class to Geodatabase
Python Script
Uses FC to FC tool
Multiple FC converted
to single GDB
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13
CAD to Geodatabase Tool
Creates new Feature
dataset in existing
GDB
Converts entire
drawing file
Can convert multiple
CAD files at one time
Can use PRJ and WLD
files
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14
Import CAD Annotation Tool
Converts CAD Annotation
to GDB Annotation
Desktop Basic has limited
functionality
Can covert CAD Layers to
individual feature classes
(Standard or Advanced) or
merge to single FC
If used in ArcMap, you can
use layers as input
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15
Common Problems
Unlimited drawing area for DWG & DXF
New release formats (2013 most current
AutoCAD)
Specialty objects (arcs, ellipses, splines)
Data not on correct layer or level
GIS cannot access layout (Paper Space - DWG or
DXF) information
Use of Xrefs
Often not georeferenced
Copyright © 2012 eGIS Associates, Inc.
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16
Questions & Contact
Tripp Corbin, CFM, GISP
CEO
eGIS Associates, Inc.
[email protected]
678-710-9710 ext 21
www.egisassociates.com
Copyright © 2012 eGIS Associates, Inc.
All rights reserved.
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