[GEOGRAPHICS] Coord system, stumped!

I've already posted here and spoken with a Bentley rep via live chat.

Having a darn hard time getting my coordinate system squared away. The link above begins to describe the problem. Here is another post which may explain part of the problem:

I'm a GIS Tech coming from ESRI world into Bentley..the communities patience and help is much appreciated!

Joe

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  • The bottom line...there was no problem with my coordinate system - I should have used CORPSCON to confirm.

    I was using the Input/Readout tool to monitor the coordinates when I changed my master coord sys (default -> SPCS NAD83 Zone V Feet). The reference coord sys was still in Standard Geographic (Lat/Long) WGS84 Degrees.

    I was seeing that the Lat/Long readings looked correct but thought that my State Plane coords were incorrect. Part of this confusion occurred when I would export shapefiles (*.shp) and add them in a GIS Viewer - if I added a shapefile with known spatial reference (a file with a *.prj file) and then added my GeoGraphics exported shapefile, my exported file would appear in the wrong geographic location. My GIS Viewer (MapWindowGIS) displayed the Lat/Long's and X/Y's but it displayed the X/Y's as meters when they were Surveying Feet (and how could I blame it, silly imperial units), leading to the other (large) part of my problem [confusion w/ imperial vs metric & UTMs].

    What I learned: #1 Trust GeoGraphics export of shapefiles (you just have to explicitly assign the projection you set in GeoGraphics after the export - MapWindow works well for this - to give your shapefile a *.prj which allows it to play nicely with other shapefiles & projecting on the fly in some softwares outside of Bentley. #2 Use CORPSCON for cross-coordinate system verification of geography. #3 Bentley service reps are awesome - thank you for the help Jim and Nelson!

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  • The bottom line...there was no problem with my coordinate system - I should have used CORPSCON to confirm.

    I was using the Input/Readout tool to monitor the coordinates when I changed my master coord sys (default -> SPCS NAD83 Zone V Feet). The reference coord sys was still in Standard Geographic (Lat/Long) WGS84 Degrees.

    I was seeing that the Lat/Long readings looked correct but thought that my State Plane coords were incorrect. Part of this confusion occurred when I would export shapefiles (*.shp) and add them in a GIS Viewer - if I added a shapefile with known spatial reference (a file with a *.prj file) and then added my GeoGraphics exported shapefile, my exported file would appear in the wrong geographic location. My GIS Viewer (MapWindowGIS) displayed the Lat/Long's and X/Y's but it displayed the X/Y's as meters when they were Surveying Feet (and how could I blame it, silly imperial units), leading to the other (large) part of my problem [confusion w/ imperial vs metric & UTMs].

    What I learned: #1 Trust GeoGraphics export of shapefiles (you just have to explicitly assign the projection you set in GeoGraphics after the export - MapWindow works well for this - to give your shapefile a *.prj which allows it to play nicely with other shapefiles & projecting on the fly in some softwares outside of Bentley. #2 Use CORPSCON for cross-coordinate system verification of geography. #3 Bentley service reps are awesome - thank you for the help Jim and Nelson!

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