Mouse Activity

The mouse button on a tv_tool sets the mouse buttons.(The mouse is also set when the mouse button is pressed in another tool). There are three options ;-

pos

left down       ipos: the Tv image pixel (integer) position.
middle down     pos2D: the physical image position (sub pixel) with
                respect to image coordinates (takes account of scale).
right down      pos3D: the image position of the underlying physical image
                with respect to 3D co-ordinates of the camera located at
                the centre of the image.

grey

left down       grey: the grey level of the physical image.

left down       grey: the pixel value of the tv image.

All diagnostics are written to the main tool.