Example situation:
UI displays specifics about the current TrImageItem in the plotter such as
center (X,Y), number of pixels (X,Y), range in microns (X,Y) and the size of each pixel for X and Y in microns
If the parent of the plot wants to wants to update these parameters if the image is moved or resized they can do so by handling the SIG_ITEM_MOVED signal, but this is only if the image item is moved, if the TrImageItem is resized no signal is emitted.
here is a visual of what I am talking about, resizing the pattern image in the center of the plot should emit a signal indicating the change, that signal handler then updates the scan parameters on the UI.
PierreRaybaut
commented
1 year ago
Example situation: UI displays specifics about the current TrImageItem in the plotter such as center (X,Y), number of pixels (X,Y), range in microns (X,Y) and the size of each pixel for X and Y in microns
If the parent of the plot wants to wants to update these parameters if the image is moved or resized they can do so by handling the SIG_ITEM_MOVED signal, but this is only if the image item is moved, if the TrImageItem is resized no signal is emitted.
here is a visual of what I am talking about, resizing the pattern image in the center of the plot should emit a signal indicating the change, that signal handler then updates the scan parameters on the UI.