Posted by
Michael Schmid on
Jul 19, 2016; 3:07pm
URL: http://imagej.273.s1.nabble.com/ROI-handles-tp5016913p5016916.html
Hi Gabriel,
as far as I can see, the size of the 'grab zone' of the Roi handles is
hardcoded in Roi.isHandle(int sx, int sy), where the size is defined by
the size of the rectangle + 3 pixels. For some of today's screens with
very high resolution, I agree that this is a bit smallish.
Michael
________________________________________________________________
On 2016-07-19 16:01, Gabriel Landini wrote:
> On an image there is a rectangular ROI which I try to adjust it through the
> handles (little rectangles at the corners and middle of the sides of the ROI).
> While in rectangular selection mode, the cursor changes from the normal cursor
> into an "hand pointing" cursor when it approaches the handle. However I am
> finding fiddly to select these handles as the buffer zone that influences the
> change of cursor is quite small.
>
> Is there a setting for this in IJ, or is this something controlled by the OS?
>
> It know it is not mouse acceleration or pointer threshold adjustment I am
> after (tried those and makes no difference), but the size of the 'buffer zone'
> at which the handle gets selected. I have the feeling that if that zone is
> larger, then selecting the handles would be easier.
>
> Thanks for any suggestions.
>
> Gabriel
>
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