Size & Position Filter --- Ctrl / Alt + Mouse Drag

I have a suggestion to better control the video size and position

Currently there are only four points at the corner of the video frame to scale the video and the center point for positioning

The suggestion is to add a trigger from the combination of Ctrl key + left mouse click, and when the mouse drags to the right or down, the video size increases, otherwise when the mouse drags to the left or up, the video size decreases. Also add an option on how steep the scaling is corresponding to the mouse movement

The same goes to the positioning, it could be triggered by Alt key + left mouse click + drag to move the video. Again, add an option to adjust the steepness of the movement

The main concern is to avoid using only the points at the four corners for scaling and the only center point for positioning. Sometimes when the video is zoomed in too much the control points went missing, so that scaling and positioning have to be done by manually enter trial and error values to reach the intended display, thus spending a lot of time.

It is also suggested that the scale anchor is fixed at the center of the video frame, so that the video is always scaled from the center


Excellent suggestion. It seems that the size & position filter still uses the method you suggested changing. Let’s hope that someone sees fit to make it easier to resize and reposition.
I don’t see any replies to the OP, which is surprising. Or maybe they just aren’t visible. ?

The next version 20.02 lets you drag the position rectangle from anywhere inside its borders and removes the center dot. If you want to scale without changing position, use the Rotate and Scale filter, which also provides some positioning parameters but in a different manner.


That’s great but I think the center circle should still be kept or at least have a center marking of some kind because that is what helps identify the middle of the image to use it with the grids in case one uses S&P for zooming.

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That is a good point. I restored the dot.

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