I really don't understand this confusion. (Apart from the fact that some people did not seem to realise that 'perspective correction' is a separate module, different from the keystone adjustment in the crop module.)
In all the modules, the effects of the current setting are visible immediately; is that not the case? Leaving the module only means that you hide adjustment options for the modules' parameters and turn off any mask display if currently shown (and, in case of crop and perspective correction, you also hide the area that's outside the selected crop rectangle, because it'd be a waste of screen estate to show them). For crop and perspective adjustment, the crop rectangle is visible while you adjust the module's parameters, highlighting the part that will be kept when you leave. When you close the module, the area outside said rectangle is hidden, but no data is actually discarded; you can always to back and adjust the parameters (crop, rotation etc.) as you wish. With crop, there's the keystone tool, which is a bit special in that it requires you to click OK to 'commit' the adjustments. If the image was continuously updated (applying the parameters set by dragging the control points immediately), the control points *themselves* would be moving all the time, which would make editing a nightmare. Kofa ____________________________________________________________________________ darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
