5 Replies Latest reply on Feb 18, 2016 9:50 AM by Larry LaVerdure

    ShapeToTab Conversion of ESRI Block Groups to Tableau with Distortion

    Larry LaVerdure

      I was very happy to discover ShapeToTab by Richard Leeke and have begun a project to bring Boulder County Census Tracks, Block Groups and Blocks polygons into Tableau from our GIS ArcMap system. 

       

      Most of the resulting Tableau map looks to be accurate but the Southeast corner of the map when compared with the ESRI Map seems distorted as you can see in the circled image below:

      Tableau Polygon Map Item Not the same as ESRI Polygon Map Element V 9 2 1.png

      I'm working with Tableau 9.2.1.  My GIS partner in this effort tells me the coordinate system is “NAD_1983_HARN_StatePlane_Colorado_North_FIPS_0501_Feet.  I'm using ShapeToTab 1.0.11.0.

      How should I go about troubleshooting this type of problem?