If you have an .mcs format building database that needs to be shifted the points that make up your building database are in x,y coordinates, so it’s easy to work with them in the UTM coordinate system:
- Find a known point on one of the buildings, and get it’s coordinates, and translate those coordinates to UTM. It would be easiest to use the lower-left most corner in the file. You’ll also need the center longitude of the UTM zone the buildings fall in.
- Open the building file in the building editor, and edit the file header. Using the center longitide found in the step above, you’ll put that in as the reference longitude, and set the false easting and northing as appropriate for the hemisphere you’re working in. While you’re here, you want to look at the xmin and ymin that make up your bounding box, this represents the current location of the lower-left corner of your building file.
- Subtract the xmin and ymin from the actual UTM coordinates. This represents your offset, or how far you need to shift the x,y coordinates in your .mcs file.
- Open up EDXCV, choose NEW from the file menu, and then choose Building File conversion. In source and destination point to your origin file, and destination files (they should be named differently). From the conversion type drop down menu, choose Spatially Filter EDX .MCS-Format Structure File. Make sure units is meters, and under inner and outer radius (in meters) put values that cover the area your buildings cover. For artificial x, y shifts, putin the values computed above. Under geographic parameters, put in you UTM zone reference longitude, the correct eastings and northings for your hemisphere, and the correct values for the Major axis and flattening (you can get this from the header in the MCS file). Your source file will be in x,y meters. Once this is done, you can exit this dialog box, then click start conversion. Once this is done, your destination file should be located in the correct part of the world. If the file doesn’t display correctly, common reasons are incorrect axis and flattening, which can shift the points, and mistakes in setting the correct eastings and northings.