def inscribedRegPolygon(cls,
sides,
position,
radius,
starting_rad,
qpoly=False):
pos_x, pos_y = PrimitiveShape.pos_to_tuple(position)
lkList = ['--'] * sides
ptsList = []
for ang in numpy.linspace(starting_rad,
starting_rad + math.tau,
sides,
endpoint=False):
ptsList.append((pos_x + radius * math.cos(ang),
pos_y + radius * math.sin(ang)))
if qpoly:
ptsList.append((pos_x + radius * math.cos(starting_rad),
pos_y + radius * math.sin(starting_rad)))
qpoints = [QtCore.QPointF(x, y) for (x, y) in ptsList]
return QtGui.QPolygonF(qpoints)
else:
ptsList.append('cycle')
newPoly = xasy2asy.asyPath()
newPoly.initFromNodeList(ptsList, lkList)
return newPoly
def circle(cls, position, radius):
pos_x, pos_y = PrimitiveShape.pos_to_tuple(position)
newCircle = x2a.asyPath()
ptsList = [(pos_x + radius, pos_y), (pos_x, pos_y + radius), (pos_x - radius, pos_y), (pos_x, pos_y - radius),
'cycle']
# cycle doesn't work for now.
lkList = ['..', '..', '..', '..']
newCircle.initFromNodeList(ptsList, lkList)
return newCircle
def updateBasePathPreview(self):
self.basePathPreview = x2a.asyPath(asyengine=self.asyengine,
forceCurve=self.useBezierBase)
newNode = [(x, y) for x, y, _ in self.pointsList
] + [(self.currentPoint.x(), self.currentPoint.y())]
newLink = [lnk for *args, lnk in self.pointsList[1:]
] + [self._getLinkType()]
if self.closedPath:
newNode.append('cycle')
newLink.append(self._getLinkType())
self.basePathPreview.initFromNodeList(newNode, newLink)
if self.useBezierBase:
self.basePathPreview.computeControls()