hi, google earth uses a special format to save geo information data (kml files). I am trying to build a (simple) gem earth projector and read these files (and also some other file types...) The conversion should be easy, but precision might become a problem. this is a shape in kml file format (longitude, latitude, height)
<coordinates> -112.3348783983763,36.1514008468736,100 -112.3372535345629,36.14888517553886,100 -112.3356068927954,36.14781612679284,100 -112.3350034807972,36.14846469024177,100 -112.3358353861232,36.1489624162954,100 -112.3345888301373,36.15026229372507,100 -112.3337937856278,36.14978096026463,100 -112.3331798208424,36.1504472788618,100 -112.3348783983763,36.1514008468736,100 </coordinates> the precision is 16 digits, so I guess double float. does anyonw know, if opengl can handle that? or any quick ideas for how to approach that? marius.