void OnDisplay()
{
osmscout::MapData data;
projection.Set(lon,
lat,
zoom,
width,
height);
if (!database.LoadData(projection,
data)) {
std::cerr << "Cannot load data" << std::endl;
return;
}
glClear(GL_COLOR_BUFFER_BIT);
glLoadIdentity();
//glTranslated(-width/2.0,-height/2.0,-9.0);
//glRotatef(-15.0f,1.0f,0.0f,0.0f);
if (!painter.DrawMap(*database.GetStyleConfig(),
projection,
drawParameter,
data)) {
std::cerr << "Cannot render" << std::endl;
return;
}
// swap buffers to display, since we're double buffered.
glutSwapBuffers();
}
virtual void DrawMap(const osmscout::TileProjection &projection,
const osmscout::MapParameter &drawParameter,
const osmscout::MapData &data) {
openglMapPainter->ProcessData(data, drawParameter, projection, styleConfig);
openglMapPainter->SwapData();
openglMapPainter->DrawMap();
}