Getting cursor position while SP simulation is running.

[Anton_S]

I post this because of November92's question: http://sketchup.google.com/3dwarehouse/details?mid=c366d4f6b95601de846af18c94f69f1a&prevstart=0

My Scirpt in previous model is old and is not working now because of different LS.
November92 basicly wants to get the cursor position while simulation is running, so the script is here.

Note:
This script only works in SU8. For some reason SU7 crashes when click play.
If anybody could make this script work in SU7 too, please post and say what is wrong in the script or what is need to be added or changed.

Anyway, copy this script to Scripted file:

onstart{
 #### Variables ####
 $cursor_pos=[0,0]
 
 #### Loading File ####
 if defined?($tempfile_loaded)==nil then #prevent from loading more than once
  directory=Object;;Dir.pwd.split(";/")[0]+";/"
  tempfile=Object;;File.new(directory+"SUtempfile.rb","w+")
  tempfile.puts('module MSketchyPhysics3
 class SketchyPhysicsClient
  def onMouseMove(flags,x,y,view)
   $cursor_pos=[x,y] #Here is our variable
   @mouseX=x
   @mouseY=y    
   if @CursorMagnetBody==nil then return() end
   ip=Sketchup;;InputPoint.new
   ip.pick(view,x,y)
   if ip.valid? then
    if @pickedBody!=nil then
     @simulationContext.doOnMouse(;drag,@pickedBody,x,y) 
     if getKeyState(VK_LSHIFT) then
      #project the input point on a plane described by our normal and center.
      ep=Geom.intersect_line_plane([view.camera.eye,ip.position],[@attachWorldLocation,view.camera.zaxis])
      @attachWorldLocation=ep
      pos=ep
     else
      ep=Geom.intersect_line_plane([view.camera.eye,ip.position], [@attachWorldLocation,Z_AXIS])
      pos=ep
      @attachWorldLocation=ep
     end
     @magnetLocation=pos
     if @CursorMagnet!=nil then NewtonServer.magnetMove(@CursorMagnet,pos.to_a.pack("f*")) end
    end
   end
  end #OnMouseMove
 end #class SketchyPhysicsClient
end')
  tempfile.close
  load(directory+"SUtempfile.rb")
  Object;;File.delete(directory+"SUtempfile.rb")
  $tempfile_loaded=true
 end
 
 #### Functions ####
 def getCursor(state=0)
  view=Sketchup.active_model.active_view #Shortcut
  case state
   when 0, "coordinates";
    return($cursor_pos) #return's cursor coordinates
   when 1, "position";
    return(view.inputpoint($cursor_pos[0],$cursor_pos[1]).position.to_a) #returns 3d position
   when 2, "best_picked";
    return(view.pick_helper($cursor_pos[0],$cursor_pos[1]).best_picked) #returns entity
  end
 end
}

Now by calling function getCursor(state) you can get the cursor position and some other.
Example:

ontick{
 Sketchup.active_model.entities[1].text=getCursor(1).inspect
}

Other:
Writing my scripts I always began using notepad++.
If anybody need it go here, it's free: http://notepad-plus-plus.org/release/5.9.2

[MrDailyBlah]

i thought u can just use MSketchyPhysics3::getCursor(), and put an array number thingy after it?

curpos=MSketchyPhysics3;;getCursor()
mousex=curpos[0] #get x coordinate
mousey=curpos[1] #get y coordinate

[Anton_S]

@mrdailyblah said:

i thought u can just use MSketchyPhysics3::getCursor(), and put an array number thingy after it?

> curpos=MSketchyPhysics3;;getCursor()
> mousex=curpos[0] #get x coordinate
> mousey=curpos[1] #get y coordinate
> 

MSketchyPhysics3::getCursor() returns cursor position relative to the whole screen, but the other one in sketchup tool, return cursor position relative to view. In most sketchup plugins, we need cursor position relative to view, not relative to screen.

[MrDailyBlah]

ah yeah...
but can't u use a formula to work it out? i mean use things like view.center() or view.corner(), and use the coordinates from MSketchyPhysics3::getCursor() relative to them? just a thought...

curpos=MSketchyPhysics3;;getCursor()
mouseX=curpos[0]-view.corner(0)[0]
mouseY=curpos[1]-view.corner(0)[1]
mouseX=nil if curpos[0]>(view.corner(3)[0]) #constrains mouseX coordinate to right size of view
mouseY=nil if curpos[1]>(view.corner(3)[1])#constrains mouseY coordinate to bottom size of view

would that work?..

[Anton_S]

No, you can't. view.center, and view.corner[n] also returns cursor position relative to view. If I would write view.corner(0) (the upper left corner), it would always return [0,0], so the function is kind of not useful...

Well, though, there is probably another way Using win32-api to locate sketchup view and get its position. It will only work on windows and for mac ox x, I would have to use its library. And yeah I, still don't have good knowledge of win32-api functions, so it'ill most likely take a while before there would actually be a good script. Plus rightnow I only peaked at mac os x library, so yeah, need time to benefit the script...

[mptak]

Can anyone tell me how to get a list of all of the methods attached to
MSketchyPhysic3::
like
MSketchyPhysics3::getCursor()

Thanks(:))

[Anton_S]

To get all module methods:
MSketchyPhysics3.methods MSketchyPhysics3.private_methods MSketchyPhysics3.instance_methods MSketchyPhysics3.private_instance_methods

You can examine the sketchy physics files to see those methods and here is the source to module: http://www.ruby-doc.org/core-1.9.3/Module.html