def getUnitCone():
global UnitCone
if not UnitCone:
segs = LineSegs('unitCone')
dist = 1
points = [
Vec3(-dist, 1, 0),
Vec3(0, 1, dist),
Vec3(0, 1, -dist),
Vec3(dist, 1, 0)
]
for point in points:
segs.moveTo(Vec3(0))
segs.drawTo(point)
vertices = LEUtils.circle(0, 0, dist, 64)
for i in range(len(vertices)):
x1, y1 = vertices[i]
x2, y2 = vertices[(i + 1) % len(vertices)]
pFrom = Vec3(x1, 1, y1)
pTo = Vec3(x2, 1, y2)
segs.moveTo(pFrom)
segs.drawTo(pTo)
UnitCone = NodePath(segs.create())
UnitCone.setAntialias(AntialiasAttrib.MLine)
UnitCone.setLightOff(1)
UnitCone.setFogOff(1)
UnitCone.hide(DirectRender.ShadowCameraBitmask
| DirectRender.ReflectionCameraBitmask)
return UnitCone
def __init__(self, widget, axis):
TransformWidgetAxis.__init__(self, widget, axis)
segs = LineSegs()
segs.setThickness(2)
vertices = LEUtils.circle(0, 0, 1, 64)
for i in range(len(vertices)):
x1, y1 = vertices[i]
x2, y2 = vertices[(i + 1) % len(vertices)]
segs.moveTo(x1, 0, y1)
segs.drawTo(x2, 0, y2)
self.axisCircle = self.attachNewNode(segs.create())
self.axisCircle.setAntialias(AntialiasAttrib.MLine)
def getUnitCircle():
global UnitCircle
if not UnitCircle:
segs = LineSegs('unitCircle')
vertices = LEUtils.circle(0, 0, 1, 64)
angles = [Vec3(0, 0, 0), Vec3(90, 0, 0), Vec3(0, 90, 0)]
for angle in angles:
quat = Quat()
quat.setHpr(angle)
for i in range(len(vertices)):
x1, y1 = vertices[i]
x2, y2 = vertices[(i + 1) % len(vertices)]
pFrom = quat.xform(Vec3(x1, 0, y1))
pTo = quat.xform(Vec3(x2, 0, y2))
segs.moveTo(pFrom)
segs.drawTo(pTo)
UnitCircle = NodePath(segs.create())
UnitCircle.setAntialias(AntialiasAttrib.MLine)
UnitCircle.setLightOff(1)
UnitCircle.setFogOff(1)
UnitCircle.hide(DirectRender.ShadowCameraBitmask
| DirectRender.ReflectionCameraBitmask)
return UnitCircle