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5 Posts

Posted - 13/04/2014 :  14:12:10  Show Profile  Reply with Quote
Hi, I'm trying to convert to JXN one map in ecw format that has two calibrated points. In order to do it, I suppose I have to add the third point.
After doing it and pressing accept button I always get the error message "Linear equations system cannot be solved (Matrix determinant=0)".
Thanks in advance Gian.


2483 Posts

Posted - 13/04/2014 :  15:22:08  Show Profile  Visit okmap's Homepage  Reply with Quote
Is it possible that you've put the 3 point on the same line?
Draws the three points so to form a large triangle (es top-left, top-right and bottom-right).
Check also coordinates.
3 points are better that 2 because OkMap can use affine algorithm instead of similarity; in this way will be considered skew also.
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