def scale(self, obj, srcpos, dstpos):
cent = QgsGeometry().fromPointXY(QgsPointXY(0, 0))
srclen = cent.distance(srcpos)
dstlen = cent.distance(dstpos)
ratio = (dstlen / srclen) * 1.5 # 「1.5」は適当
obj.transform(QTransform(ratio, 0, 0, ratio, 0, 0))
return obj
def rotate(self, obj, srcpos, dstpos):
centroid = self.nearobj.centroid().asPoint()
theta = self.radian(centroid, dstpos)
sin = math.sin(theta)
cos = math.cos(theta)
obj.transform(QTransform(cos, sin, -sin, cos, 0, 0))
return obj
def trans(self, obj, srcpos, dstpos):
x = dstpos.x() - srcpos.x()
y = dstpos.y() - srcpos.y()
obj.transform(QTransform(1, 0, 0, 1, x, y))
return obj
