By Dave Shearon, Geospatial Specialist, Bentley Systems

1. GIS and CAD Integration Dave Shearon, P. Eng Bentley Canada

2. Agenda The problem Bentley’s solution 2 customers examples Demo

3. The Great Divide CAD Department GIS Department

4. Why use CAD? Accurate Drafting Graphical Information Quick easy to use modeling tools Design standards Visualisation / Presentation 2D / 3D model information Accurate printed documents

5. Why use GIS? Capturing of Graphical and Attribute Information Analysis of Graphical / Meta Data Simple data review Spatial analysis Visualisation / Presentation 2D / 3D model information Accurate printed documents

6. Data, Data, Data Common to GIS and CAD is Digital Data SHP TAB MIF GML NTF DGN ? DWG ? DGN DWG DXF ACIS IGES CAD GIS

7. CAD Files Complex Geometry (often 3D): Cell, Line, LineString, GroupData, Shape, TextNode, Curve, ComplexString, Conic, ComplexShape, Ellipse, Arc, Text, Surface, Solid, BsplinePole, PointString, Cone, BsplineSurface, BsplineBoundary, BsplineKnot, BsplineCurve, BsplineWeight, Dimension, SharedCell, MultiLine, Tag, MatrixHeader, MatrixIntegerData, MatrixDoubleData, MeshHeader……….. (All in one file)

8. GIS Files Geometry Type (often 2D):Lines, Multi lines, Multi line string, Points, Multi point, Polygon, Multi polygons, Surfaces. (in individual files)

9. Exchanging Data From CAD to GIS Engineering data New road, utility alignments, property developments Survey Data From GIS to CAD Mapping Information Existing property, soils, wetlands, contours, road centerlines

10. Translate if necessary, but not necessarily translation. Direct access CAD GIS

11. Bentley’s Approach Add tools to consume GIS features Coordinate systems Attribute data Tools to read the various formats (SHP, MID/MIF, ODBC, TAB, WMS, Oracle Spatial) 3D support (set elevation) Users can now import or reference GIS data directly with on-the-fly coordinate conversion and full access to attribute data

12. Export to GIS Export CAD GIS

13. Bentley’s Approach Add tools to specifically define GIS feature types within the CAD model Point, line and polygon types as well as collections. Attribute data Tools to export the various formats including attributes and coordinate systems Users can now export CAD data directly. Basic CAD features or well defined GIS features

14. Improving CAD-GIS Interoperability - Transfer only required data - segregate features destined for GIS on separate level - make sure only one feature type is on a GIS level - set a high stroking tolerance that achieves a good result - if using property data, maintain simple property types

15. Other tools Automatic feature recognition Treats CAD elements as GIS features Apply symbology based on attributes Application integration Tools make GIS data available for civil, building, infrastructure applications Server level Integrate directly with Oracle Spatial and ESRI Geodatabase Publish data as WMS and WFS Index and manage files spatially

16. HNTB Multidisciplinary engineering firm based in Kansas City Use primarily geocoordination and interoperability tools to support MicroStation projects Set GCS (geographic coordinate system) for designs Import or reference SHP data 16

17. Benefits - HNTB Define GCS simplifies output to Google Earth for visualization Simplifies working with GIS data which invariably has a defined GCS Interoperability No need to go to GIS group to import SHP and create DGN Work in design environment with minimal training Add on features Thematic mapping, overlays, buffers 17

18. Port of Long Beach Second busiest port in the United States, moving $100 billion annually Manages all infrastructure for the port Water, storm water, sewer and lease areas stored in ESRI geodatabase but maintained by Bentley Map using Connector for ArcGIS Some layers still maintained in DGN Regular extract from geodatabase to produce up-to-date base map for engineering 18

19. Benefits – Port of Long Beach Bentley Map the preferred tool for maintenance Maintenance tools and base maps all match defined CAD standards Improved workflow Similar tools for design and engineering Can reference as-built drawings in maintenance process Interoperability with SHP and AutoCAD Bentley Map part of an enterprise system including ESRI Geodatabase and Geospatial Server. 19

20. Demonstrations Import SHP Bring in GIS data to solve a problem in CAD

21. Conclusion GIS and CAD integration does not have to be seen as an impossible task. Through the use of standards and data management, information can travel freely between the two diciplines. This eventually leads to tremendous savings in both software and more importantly time.

22. Questions/Powerpoint david.shearon@bentley.com