Hello Fons, this is not the behaviour I want to have. Using Options/Auto Resize Canvas doesn't resize anything if I resize the canvas, but I want the canvas to be resized. My point is, that I want that width gets changed in the same ratio than the height and vice versa. Think about drawing a detector layout. If you change the size of the canvas you don't want to distort the layout, but if you change width and height you may want to zoom it. This can be solved easily by a function in TCanvas which fixes the width/height ratio at a given time (FixAspectRatio()) and resizes width/height according to the resizement of the other one. Or, this would be more convinient: The graphic elemts don't distort and get resized only if the zoomed graphic would fit again in the resized pad Pad. (If you make only width or height longer the graphic elemenst would stay the same, if you would make only width or height shorter the element would become smaller) Would be a really nice feature (and maybe it is not so difficult to implement than it looks like) Thanks a lot, Thomas. Fons Rademakers wrote: > You can do that now if in the canvas menu you turn off the > option: Options/Auto Resize Canvas. In that case the canvas > stays fixed when changing the window size. The API to this > feature is not yet easily accessable but I can expose it. > > > > I have a question and maybe a suggestion: > > Is it possible to fix the aspect ratio of a graphic in a TPad or to fix > > the aspect ratio of a canvas. So that if I change only the width the > > graphic stays the same, but if I change the width and height, the > > graphic is resized. If this is not yet implemented it would be a really > > nice feature. (Easier to implement is fixing the aspect ratio of a > > canvas, Iguess) This would help when displaing detector geometries.
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