Hey all,
I was wondering if anyone has a good example of easy user interaction
with OCC. In HeeksCAD, rotating and moving the camera/viewport,
rotating the object, etc. is made difficult by cryptic two-click mouse
button maneuvers, and rotating the camera versus rotating a particular
object isn't always obvious.
The most useful viewport tools that I have seen so far are the ones
that specifically move you to the front, back, side, top, bottom, and
so on. I was wondering if anyone knows of a good example of a good
user interaction model with OCC. For instance, HeeksCAD and FreeCAD
both seem to use the default settings that are also used in
InteractiveViewer.py.
The only program that comes to mind that seems to have a good user
interaction model is "gmsh". Click and hold left mouse button to
rotate, click and hold both left and right mouse buttons to zoom in
and out. Right mouse button moves the object.
gmsh:
left mouse button: rotate
right mouse button: move camera left, right, up, down
left & right mouse button: zoom in/out
HeeksCAD:
mouse wheel: zoom in/out
left & right mouse button: rotate
left mouse button (after left clicking on an object) move object
FreeCAD
arrow keys: move camera left, right, up, down
left & right mouse button: rotate?
To me, gmsh feels the most natural. HeeksCAD's mouse wheel and "click
an object and then move it" also feels natural. I wish these were more
standard, or customizable. Anyway, if anyone has any hints on how to
set up these specific actions under pythonOCC, I am all ears.
- Bryan
http://heybryan.org/
1 512 203 0507
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