Control points coordinates allow fractions of a pixel (1/3 pixel at a time when moving via arrow keys. Even finer detail for "fine tuning" results).
What is the precise meaning of the coordinate relative to the pixel? Imagine each pixel as a square in a very magnified image. I would expect best behavior if that pixel's integer coordinates represented the center of that pixel. But maybe some code would be simpler if the pixel's exact coordinates represented the top left corner of that pixel (its coordinates plus 0.5,0.5 would be its center). I'm pretty sure various parts of of the hugin code are inconsistent with each other regarding that decision (following neither of the above rules and differently from other sections of the hugin code). I'm working on some enhancements to hugin++, that I can only code correctly if I know the precise answer to this question. So I looked for it in the current code and experimentally in the current behavior and found contradictions. I'd like to know which parts are following the intended behavior, vs which are subtle bugs. -- A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ --- You received this message because you are subscribed to the Google Groups "hugin and other free panoramic software" group. To unsubscribe from this group and stop receiving emails from it, send an email to hugin-ptx+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/hugin-ptx/6678b982-33fe-427d-b720-a5c29bb7c546n%40googlegroups.com.