< GSDP:GAM100 | CProcessing
worldToScreen()
Description
Takes an input coordinate in world space and transforms it to screen coordinates.
Parameters
worldToScreen(float xIn, float yIn, float* xOut, float* yOut)
- xIn - (float) The x coordinate to convert.
- yIn - (float) The y coordinate to convert.
- xOut - (float*) The place to store the converted x coordinate.
- yOut - (float*) The place to store the converted y coordinate.
Example
void init()
{
// Variables to pass into the conversion functions
float x = PI;
float y = PI;
// Run back and forth 100 times
for (int i = 0; i < 100; ++i)
{
screenToWorld(x, y, &x, &y);
worldToScreen(x, y, &x, &y);
}
// Should still be PI
printf(" %9f\n(%9f,%9f)\n", PI, x, y);
}