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:

var

Example:

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