Translate Local Display coordinates to World

[kerim371]

Hi,

Based on Remote selection example I'm trying to translate most likely Local Display coordinates to World (xyz of the scene).

Doing it in the following form seems to bring incorrect results (I feel like the coordinates are shifted or something):

# callback when selection is done
def on_box_selection_change(selection):

    x0 = selection["selection"][0]
    y0 = selection["selection"][2]
    x1 = selection["selection"][1]
    y1 = selection["selection"][3]

    coordinate = vtkCoordinate()
    coordinate.SetCoordinateSystemToDisplay()

    coordinate.SetValue(x0,y0)
    p0 = coordinate.GetComputedWorldValue(renderer)
    coordinate.SetValue(x1,y0)
    p1 = coordinate.GetComputedWorldValue(renderer)
    coordinate.SetValue(x1,y1)
    p2 = coordinate.GetComputedWorldValue(renderer)
    coordinate.SetValue(x0,y1)
    p3 = coordinate.GetComputedWorldValue(renderer)

    ...

I was hoping there is a way to make it work correct.

[jourdain]

Maybe that is a good example for you.

[kerim371]

Yes , that was 100% what I was looking for! Thank you!