View Full Version : What a drag?
Jerry
02-06-2007, 10:09 AM
What is viz.drag() supposed to do? When I run
duck = viz.add('duck.wrl')
duck.translate(0,1.5,4)
viz.grab(viz.Mouse,duck)
the duck moves with the mouse but doesn't stay under the cursor
as one might expect if it were being dragged.
PS - Is Vizard compatible with Vista?
Jerry
02-06-2007, 10:10 AM
I meant viz.grab()
farshizzo
02-06-2007, 10:19 AM
The viz.grab() command is not meant to be used for dragging objects with the mouse. Look at the tutorial_grab.py script in the [Vizard30]\tutorial\link directory for an example. It's mostly used when you are doing some sort of hand tracking and you want to simulate grabbing an object.
Gladsomebeast
02-07-2007, 09:07 AM
viz.grab() with the mouse makes sense if the object you are grabbing is on the screen.
import viz
viz.go()
screenText = viz.addText('GrabME', viz.SCREEN)
s = 1
screenText.scale(s,s,s)
screenText.setPosition(.5, .5)
grabLink = None
def onMouseDown(button):
global grabLink
if grabLink:
#in case we missed mouse up event
grabLink.remove()
grabLink = viz.grab( viz.Mouse, screenText )
viz.callback(viz.MOUSEDOWN_EVENT,onMouseDown)
def onMouseUp(button):
global grabLink
grabLink.remove()
grabLink = None
viz.callback(viz.MOUSEUP_EVENT,onMouseUp)
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