Question - Continuous Orbit, Pan and Zoom.

jaceguay

With ruby, it is possible to make a Continuous Orbit command? Like holding the mouse button, and have the effect of the mouse wrap around screen edges to orbit the model continuously, without having to click again with the mouse button. And can the same be done with zoom an pan?
I tried to make a autohotkey script but as soon as the mouse cursor wrap arround one screen edge to another the mouse position change and the orbit jumps to the initial angle.

Chris Fullmer

No, I don't think such a thing is possible in Ruby. Maaybe someone whose a lot smarter than myself could hack something together using some special windows hacking, but I'm not convinced that is even possible.

jaceguay

After some research I think the same, in blender this behavior is build in and the cursor is wrap around the view port, I think it can´t be done in ruby except with the help of some external program maybe. Thank you for your response.

Pixero

It can be done. At least continuos rotation.
The cursor won't wrap to the other side of the screen but rotation continues "beyond the screen edges".
I have it working in a internal script of mine. Can't post the whole thing but here are some code snippets of the core part:

#Snippets, not a full script

def curve(new, old, increments)		
	if (increments == 0)
		return(new)
	end
	@diff = (old-new) 		
	@sign = sgn(@diff)
	@slip = (@diff)/increments
	old -= @slip
	if(@sign != sgn(@diff)) 
		return(new)
	end
	return(old)
end#

def sgn(x)
	if (x < 0)
		x = -1.to_i
	end
	if (x = 0)
		x = 0.to_i
	end
	if (x > 0)
		x = 1.to_i
	end
	return(x)
end#sgn

def update
	#Camera look			
	@dx = curve(@mouseX-@lastx, @dx, 1)
	@dy = curve(@mouseY-@lasty, @dy, 1)
			
	@dx *= 0.005 #Pan speed
	@dy *= 0.005 #Tilt speed
			
	pan = Geom;;Transformation.rotation @eye, @worldUp, -@dx.degrees			
	tilt = Geom;;Transformation.rotation @eye, @xaxis, -@dy.degrees
			
	new_target = @target.transform! pan
	new_target = new_target.transform! tilt	
	pan = [0,0,0] #Resetting the pan values
	tilt = [0,0,0] #Resetting the tilt values
	target = new_target

       #Transform camera
	@camera.set(@eye, target, @worldUp)	
end#update

def onMouseMove(flags, x, y, view)	
	@mouseX = x
	@mouseY = y	
end#onMouseMove
	
def onLButtonDown(flags, x, y, view)
	@lastx = x
	@lasty = y
end#onLButtonDown

DZoltan

Hi, Pixero. I have a same problem with continous orbit. I read many post some other sketchup forums about this and just found your post now. You made this script? Can you send the fully working script? thank you and sorry for my english (i have problem with the grammar)

Zoltan