freerotation behaviour about gestouch HOT 4 CLOSED

@bluelemonade I don't understand your problem :/ if you still need help, I could try to assist in voice via Telegram or Skype or Google Hangouts.

from gestouch.

hello,

you can find a capture of the issue: http://intern.bluelemon.de:8080/share.cgi?ssid=0lYDjOt
( NAS active between 8.00 and 21.00 MET)

you can see the comibation of scaling an rotating. when I change the rotation an change at the same time the scaling smaller then my minimal scaling, the sprite wanders out of the touch points. how can I avoid this.

regards

from gestouch.

@bluelemonade well do not transform your object via those scaleX scaleY x and y convenience setters! If you do it this it transforms object relative to it's origin.

I think you should drop all code after // nicht zu klein machen and instead limit the scaling at matrix.scale() call. You don't want to apply too much up/down scale here.
Perhaps something like

const pic = event.target.target as DisplayObject;
...
matrix.translate(-transformPoint.x, -transformPoint.y);
matrix.rotate(gesture.rotation);

if (doScaling) {
  const currPicScale = pic.scaleX;
  const minScaleToApply = 0.7 / currPicScale;
  const maxScaleToApply = 1.1 / currPicScale;
  const scaleToApply = Math.max(minScaleToApply, Math.min(gesture.scale, maxScaleToApply));
  matrix.scale(scaleToApply, scaleToApply);
}

matrix.translate(transformPoint.x, transformPoint.y);
pic.transform.matrix = matrix;

from gestouch.

oh, thank you, indeed its stupid to scale the object. thanks

from gestouch.