I am working on an application that involves some gis stuff. There
would be some .shp files to be read and plotted onto an opengl screen.
The current opengl screen is using the orthographic projection as set
from glOrtho()..and is already displaying a map using coordinates from
a simple text file..
now the map to be plotted is to be read from a shapefile.
I have the following doubt:
How to use the WGS84 projection of the .shp file(as read from the .prj
file of the shapefile,WKT format) into my existing glOrtho
projection..is there any conversion that needs to be done? and how is
it different from what the glOrtho() sets up defaultly?basically how
to use this information?
Any inputs will be worth for me..because i am new to gis programming.