I've got a DXF file that represent a map with lines, texts, and some symbols (blocks in DXF). I need to transform coordinates from a local cartesian system to WGS84 lon/lat coordinates, maintaining the DXF format.
I managed to change all occurrences of X and Y coordinates to Lat and Lon reading all the DXF lines and substituting the coordinates with a program written by myself.
The only problem that I still have is in BLOCKS:
there are many blocks defined in the original file, and I don't understand how can define these blocks in Lon/Lat coordinates. If I leave them as they originally are (in cartesian coord) the blocks are created enormous, but also transforming them from X and Y to Lon/Lat they are not corresponding to the original ones.
What am I missing?
أكثر...
I managed to change all occurrences of X and Y coordinates to Lat and Lon reading all the DXF lines and substituting the coordinates with a program written by myself.
The only problem that I still have is in BLOCKS:
there are many blocks defined in the original file, and I don't understand how can define these blocks in Lon/Lat coordinates. If I leave them as they originally are (in cartesian coord) the blocks are created enormous, but also transforming them from X and Y to Lon/Lat they are not corresponding to the original ones.
What am I missing?
أكثر...