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Integrating CAD and GIS with Spatial ETL
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Integrating CAD and GIS with Spatial ETL



by Don Murray, President of SAFE Software

by Don Murray, President of SAFE Software



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Integrating CAD and GIS with Spatial ETL Integrating CAD and GIS with Spatial ETL Presentation Transcript

  • Integrating CAD and GIS with Spatial ETL
  • Overview  What is Spatial ETL?  Quick look at two CAD-GIS Case Studies  CAD-GIS Common Themes
  • What is Spatial ETL? Extract Transform Load 3
  • Why Spatial ETL?  Significant proliferation of different spatial data formats and types – Hundreds of formats, with more added each year – Multiple types of data stored in multiple systems – Unique data model requirements for each application  Traditional approaches to data translation and data model manipulation are not viable – Complex, inefficient and time-consuming  Increasing pressure for access to spatial data – More users, beyond traditional GIS users – Expectations of real-time custom data views, 24x7 4
  • Format Proliferation
  • Data Convergence ranslate from one format to another ransform into the data model you need ntegrate different data types at once eliver data to users in the structure & format
  • Transformation is Key  CAD <->GIS needs transformation  Need ability to change data model 7
  • Spatial ETL Safe Overview 8
  • #1 Use of Spatial ETL CAD GIS 9
  • Case Study: Enstar Natural Gas Company  Organization – Provides natural gas service to 340,000 customers in Alaska  Problem – Migrating large volumes of AutoCAD drawings to GIS-based mapping system in very short timeframe  Solution – Read and extract information from “group” entities in AutoCAD files and load them into a geodatabase – Perform file mapping and geo-referencing to leverage key semantic and context information from drawings  Results – Information in CAD files no longer inaccessible – Time savings through a repeatable data conversion framework 10
  • Case Study: Gulf Power  Organization – Provides electricity to 372,000 customers in Florida.  Problem – Moving CAD data into seamless database. Stitching of tiles and resolving quality issues in an automated approach where possible.  Solution – Resolved gaps in lines. Joined linework together. – Mapped CAD entities to new GIS entities – Used Proximity to associate annotation with linear features.  Results – Fast and accurate data translation – Detailed translation statistics reported as files are processed and moved to the new system 11
  • CAD <-> GIS Common Themes  CAD and GIS represent information differently – The representation must be changed to effectively move data from one environment to another CAD GIS 12
  • CAD <-> GIS Common Themes  CAD Annotation <-> GIS Attributes – Must be able to move this between the systems. – Use Proximity to associate annotation with features – Often there is no explicit link in the CAD data. CAD GIS 13
  • CAD <-> GIS Common Themes Quality Assurance – What are the issues with the existing data that are going to cause problems in new system? 14
  • CAD <-> GIS Common Themes Quality Assurance – Automated data cleanup is often possible. Before - GAP After – GAP Removed 15
  • CAD <-> GIS Common Themes Quality Assurance – Automated data cleanup not always possible. 2 Internal Points 0 Internal Points 16
  • CAD<->GIS Common Themes  Connectivity Cleanup – Build connectivity for linear networks representing water, gas, etc. Before After 17
  • CAD<->GIS Common Themes  Deciphering layer codes, colors, linestyles, etc. – E.g. 2 lane paved roads are on layer 4, color red, solid line of thickness 3. 18
  • Summary  GIS and CAD data represent information differently  To effectively communicate data must be restructured to fit the tool being used  Spatial ETL is all about restructuring the data to fit the tool and user consuming the data 19
  • Thanks  If you would like more information please stop by our booth at the show or  Contact me at dcm@safe.com 20