Flip an entity?

[uwedornbusch]

I now this is my own fault for having collected ground control points pretty much in a line, but suing VisualSFM I have created a dense point cloud (with RGB) that I registered with the GCPS. On trying to export the 'orthophoto' as geotiff, the grid in the preview shows the view (if you wander, it is a beach with some bags) weirdly flipped. I will try to get a better gcp distribution next time but as the beach will change and I would like to use the existing snapshot in time the question, is there a way to flip the entity?
Many thanks, Uwe
PS: such a brilliant piece of software :-)

[daniel]

If it's a simple inversion of the Z axis, then you can either use the 'Edit > Apply transformation' tool, and then set a transformation matrix equals to the identity (default) but with '-1' as the 3rd diagonal element. Or you can use the 'Edit > Multiply / Scale' tool and set the Z coefficient to -1.