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QTransform translate dx

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aiyolo

wrote on last edited by

#1

When using QTransform for coordinate transformation, I need to transform the coordinate point (1,1) to (5,5). If I have already scaled the QTransform t by a factor of 3, what should the translation amount be set to now, and why?
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A aiyolo

When using QTransform for coordinate transformation, I need to transform the coordinate point (1,1) to (5,5). If I have already scaled the QTransform t by a factor of 3, what should the translation amount be set to now, and why?
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Pl45m4

wrote on last edited by

#2

@aiyolo

Merge both transformation (scaling by factor 3 and translation to 5/5) and apply the resulting transformation to your item/point.
If debugging is the process of removing software bugs, then programming must be the process of putting them in.

~E. W. Dijkstra
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