1 files changed, 24 insertions, 0 deletions
diff --git a/Master/texmf-dist/asymptote/GUI/xasyTransform.py b/Master/texmf-dist/asymptote/GUI/xasyTransform.py
new file mode 100755
index 00000000000..928e9011f0a
--- /dev/null
+++ b/Master/texmf-dist/asymptote/GUI/xasyTransform.py
@@ -0,0 +1,24 @@
+#!/usr/bin/env python3
+import xasy2asy as x2a
+import PyQt5.QtGui as Qg
+import PyQt5.QtCore as Qc
+import numpy as np
+import math
+
+
+class xasyTransform:
+    @classmethod
+    def makeRotTransform(cls, theta, origin):
+        if isinstance(origin, Qc.QPointF) or isinstance(origin, Qc.QPoint):
+            origin = (origin.x(), origin.y())
+        rotMat = (math.cos(theta), -math.sin(theta), math.sin(theta), math.cos(theta))
+        shift = x2a.asyTransform((0, 0, 1 - rotMat[0], -rotMat[1], -rotMat[2], 1 - rotMat[3])) * origin
+        return x2a.asyTransform((shift[0], shift[1], rotMat[0], rotMat[1], rotMat[2], rotMat[3]))
+
+    @classmethod
+    def makeScaleTransform(cls, sx, sy, origin):
+        if isinstance(origin, Qc.QPointF) or isinstance(origin, Qc.QPoint):
+            origin = (origin.x(), origin.y())
+        shiftMat = x2a.asyTransform((0, 0, 1 - sx, 0, 0, 1 - sy)) * origin
+        return x2a.asyTransform((shiftMat[0], shiftMat[1], sx, 0, 0, sy))
+