center_x
center_y
Rotation center of the panel
in pixels, relative to its pos_x / pos_y coordinates.
The center is scaled with the panel.
Range:
0..panel size (default: 0)
Type:
varExample:
PANEL* pan;
// rotate a panel about its center
function pan_rotate(p)
{
pan = p; // set the panel pointer from the function parameter
pan.center_x = pan.size_x * 0.5; // set the rotation center at the panel center
pan.center_y = pan.size_y * 0.5;
while (pan.angle < 360) // one full rotation
{
pan.angle += 10*time_step;
wait(1);
pan = p; // local variables are preserved during wait(), global pointers aren't
}
pan.angle = 0;
}
See Also:
PANEL, bmap, layer,
angle