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Tips for using and import CAD Data in ArcGIS. Agenda. CAD Data Format DWG, DXF, DGN Using CAD Data as a layer in ArcMap Tools & methods for importing CAD Data Common Problems. CAD Data formats. DXF & DWG = AutoCAD DGN = Microstation Commonly referred to as a Drawing File - PowerPoint PPT Presentation
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1Copyright © 2012 eGIS Associates, Inc.
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Tips for usingand importCAD Data in
ArcGIS
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AgendaCAD Data Format
DWG, DXF, DGNUsing CAD Data as a layer in ArcMapTools & methods for importing CAD DataCommon Problems
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CAD Data formatsDXF & DWG = AutoCADDGN = MicrostationCommonly referred to as a Drawing FileContains 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 IconsEdit after converting to geodatabase FC
or shapefile
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CAD data formatsContains multiple entity
types Points Lines Polygons Attributes Text styles Plot layouts Projection/Coordinate
Systems References to external files
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Layers & LevelsPrimary 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
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On to a demo
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ArcGIS CAD to GIS ToolsArcCatalogArcMap
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ArcCatalogConvert to multiple
formatsShapefileGeodatabase
Simple Data LoaderArcToolboxWorks in Catalog
Window
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ArcMapMore flexible than ArcCatalogAlso converts to multiple
formatsCan use selectionsCopy & PasteObject LoaderArcToolbox
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On to another demo
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ArcToolboxCan be used from either
ArcMap or ArcCatalogTools can be used in
model or python script
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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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Feature Class to GeodatabasePython ScriptUses FC to FC toolMultiple FC
converted to single GDB
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CAD to Geodatabase ToolCreates 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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Import CAD Annotation ToolConverts CAD Annotation
to GDB AnnotationDesktop Basic has limited
functionalityCan 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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Common ProblemsUnlimited drawing area for DWG & DXFNew release formats (2013 most current
AutoCAD)Specialty objects (arcs, ellipses, splines)Data not on correct layer or levelGIS cannot access layout (Paper Space - DWG
or DXF) informationUse of XrefsOften not georeferenced
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Questions & ContactTripp Corbin, CFM, GISPCEOeGIS Associates, [email protected] ext 21www.egisassociates.com
