I need help.
Is there any way to calculate hotspot's attributes from four corner coordinates of a distorted rectangle in a scene.
For example, the four corner coordinates (ath, atv) are like:
left top: -5.5, 32.0
right top: 11.8, 34.4
right bottom: 10.5, 42.8
left bottom: -7.6, 40.1
The rectangle in the scene has aspect ratio of 16:9.
In this case, if I want to place a hotspot image exactly to fit into the background rectangle image, currently I manage to do that manually by trial and error.
But if I want to calculate width, height, rx, ry, rz, (edge, ox, oy if needed) values from the values above, is there any formula?
Thanks in advance.