I need to recreate the functionality of the link table in the georeferencing toolbar. I have sets of ground control points (usually between 5 to 30 gcps for an image) and need the resulting RMS errors for a given transformation - there is no need to actually rectify the images.
I have trouble understanding the DefineFromControlPoints Method.
The documentation says. 'Defines the best affine transformation between two sets of points'
but the arguments are defined as ByRef fromPoints As IPoint
which I understand is one point, not a set of points.
This sample (rather old, but one of the few available I found)
http://edndoc.esri.com/arcobjects/9.1/ComponentHelp/esriGeometry/DefineFromControlPoints_Example.htm
states
pAffineTrans2D.DefineFromControlPoints 4, pPtFrom(0), pPtTo(0)
which appear to be single points from a point array, so again actually only one ground control point.
I am confused...
So again my question: can anybody show me how to use a set of points with DefineFromControlPoints ?
Any help is appreciated!
Cheers
Axel
ByRef fromPoints As IPoint
