3/30/2024 0 Comments Arcgis to transcad file![]() ![]() This suggests some kind of datum mismatch to me, but it appears to be one that ArcMap is not capable of reconciling. ArcMap cannot correctly overlay it (using on-the-fly projection) with other data I'm using, and thus none of the geoprocessing tools will work correctly with it (e.g., spatial join with another dataset.) When an attempt is made to overlay this data with other data in ArcMap (using its on-the-fly projection mechanism), the shapefile data is way off from "ground truth", usually by around 40 meters. It seems as though the shapefile has two (different) notions of which datum its SRS is using: NAD_1983_StatePlane_Massachusetts_Mainland_FIPS_2001 (see first bold text, above), and D_GRS_1980 (second bold text, above.)Īs-is this shapefile, or at least its geometry, is useless for my purposes. I've never seen an SRS that looks like this one. Geographic Coordinate System: GCS_GRS_1980. ![]() Projected Coordinate System: NAD_1983_StatePlane_Massachusetts_Mainland_FIPS_2001.Taking a look at the parameters of the shapefile's SRS using ArcMap, gives the following: The "Project" tool reports that "no datum conversion" is available between the SRS of the shapefile and EPSG:26968. I am working with a shapefile that I have not been able to project to the Mass State Plane NAD83 meters (i.e., EPSG:26986) SRS using ArcMap's "Project" tool.
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