Weight point

Comments

• ar2rsawseen Maintainer

  March 2016 edited March 2016

  For Bitmaps:
  http://docs.giderosmobile.com/reference/gideros/Bitmap/setAnchorPoint#Bitmap:setAnchorPoint
  
  For Shapes
  You can draw shapes relatively to the position which you want to rotate around (0,0 position)
  
  Generic solution for Sprites and Sprite inherited objects:
  http://docs.giderosmobile.com/reference/gideros/Sprite/setAnchorPosition#Sprite:setAnchorPosition
  

  Likes: antix, rolfpancake, misterhup

  http://appcodingeasy.com/Gideros-Mobile

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• rolfpancake Member

  March 2016

  Is there a possibility to change the rotation-point of a shape after I created it?
  
  I had this problem when I did not draw the shape around its center. The :setAnchorPosition confuses me, because the anchor-position is not the same as the point of rotation.
  
  And another thing I don't get is the following:
  Bitmap inherits from Sprite. So it has :setAnchorPosition. It also has :setAnchorPoint. What is the difference here?

  Likes: antix

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• ar2rsawseen Maintainer

  March 2016

  Bitmap:setAnchorPoint accepts ratios
  so

  bitmap:setAnchorPoint(0.5, 0.5)

  will always rotate around center
  
  but Sprite:setAnchorPosition accepts internal position.
  So

  sprite:setAnchorPosition(sprite:getWidth()/2, sprite:getHeight()/)

  should rotate around anchor point until sprite dimensions change (like adding a child)

  http://appcodingeasy.com/Gideros-Mobile

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