1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
|
#!/usr/bin/env python3
import xasy2asy as xasy2asy
import PyQt5.QtGui as QtGui
import PyQt5.QtCore as QtCore
import numpy as numpy
import math
class xasyTransform:
@classmethod
def makeRotTransform(cls, theta, origin):
if isinstance(origin, QtCore.QPointF) or isinstance(origin, QtCore.QPoint):
origin = (origin.x(), origin.y())
rotMat = (math.cos(theta), -math.sin(theta), math.sin(theta), math.cos(theta))
shift = xasy2asy.asyTransform((0, 0, 1 - rotMat[0], -rotMat[1], -rotMat[2], 1 - rotMat[3])) * origin
return xasy2asy.asyTransform((shift[0], shift[1], rotMat[0], rotMat[1], rotMat[2], rotMat[3]))
@classmethod
def makeScaleTransform(cls, sx, sy, origin):
if isinstance(origin, QtCore.QPointF) or isinstance(origin, QtCore.QPoint):
origin = (origin.x(), origin.y())
shiftMat = xasy2asy.asyTransform((0, 0, 1 - sx, 0, 0, 1 - sy)) * origin
return xasy2asy.asyTransform((shiftMat[0], shiftMat[1], sx, 0, 0, sy))
|
