def transform(shiftX=0.0, shiftY=0.0, rotate=0.0, skew=0.0, scale=1.0):
"""
Returns an NSAffineTransform object for transforming layers.
Apply an NSAffineTransform t object like this:
Layer.transform_checkForSelection_doComponents_(t,False,True)
Access its transformation matrix like this:
tMatrix = t.transformStruct() # returns the 6-float tuple
Apply the matrix tuple like this:
Layer.applyTransform(tMatrix)
Component.applyTransform(tMatrix)
Path.applyTransform(tMatrix)
Chain multiple NSAffineTransform objects t1, t2 like this:
t1.appendTransform_(t2)
"""
myTransform = NSAffineTransform.transform()
if rotate:
myTransform.rotateByDegrees_(rotate)
if scale != 1.0:
myTransform.scaleBy_(scale)
if not (shiftX == 0.0 and shiftY == 0.0):
myTransform.translateXBy_yBy_(shiftX, shiftY)
if skew:
skewStruct = NSAffineTransformStruct()
skewStruct.m11 = 1.0
skewStruct.m22 = 1.0
skewStruct.m21 = math.tan(math.radians(skew))
skewTransform = NSAffineTransform.transform()
skewTransform.setTransformStruct_(skewStruct)
myTransform.appendTransform_(skewTransform)
return myTransform
def transform(self,
shiftX=0.0,
shiftY=0.0,
rotate=0.0,
skew=0.0,
scale=1.0):
myTransform = NSAffineTransform.transform()
if rotate:
myTransform.rotateByDegrees_(rotate)
if scale != 1.0:
myTransform.scaleBy_(scale)
if not (shiftX == 0.0 and shiftY == 0.0):
myTransform.translateXBy_yBy_(shiftX, shiftY)
if skew:
skewStruct = NSAffineTransformStruct()
skewStruct.m11 = 1.0
skewStruct.m22 = 1.0
skewStruct.m21 = math.tan(math.radians(skew))
skewTransform = NSAffineTransform.transform()
skewTransform.setTransformStruct_(skewStruct)
myTransform.appendTransform_(skewTransform)
return myTransform