def blkFace(obj):
cameraPos = rs.ViewCamera()
cameraPos.Z = 0
xform = rs.BlockInstanceXform(obj)
plane = rs.PlaneTransform(rs.WorldXYPlane(), xform)
viewdir = rs.VectorUnitize(cameraPos - plane.Origin)
angle = rs.VectorAngle(viewdir, plane.YAxis)
newXform = rs.XformRotation3(plane.YAxis, viewdir, plane.Origin)
rs.TransformObject(obj, newXform)
def blkFace(obj):
cameraPos = rs.ViewCamera()
cameraPos.Z = 0
plane = rs.WorldXYPlane()
if rs.IsBlockInstance(obj):
plane = blkPlane(obj)
elif rs.IsSurface(obj):
plane = srfPlane(obj)
targetpos = plane.Origin
targetpos.Z = 0
viewdir = rs.VectorUnitize(cameraPos - targetpos)
angle = rs.VectorAngle(viewdir, plane.YAxis)
newXform = rs.XformRotation3(plane.YAxis, viewdir, plane.Origin)
rs.TransformObject(obj, newXform)
rs.AddLayer("Cactus")
rs.CurrentLayer("Cactus")
surf = rs.AddLoftSrf(sections)
rs.CapPlanarHoles(surf)
#Draw spines
cone = rs.AddCone([0, 0, -sh], sh, sr)
basis = []
theta = ma.pi / 8
dphi = 2 * ma.pi / m
for k in range(0, m):
phi = k * dphi
x = ma.sin(theta) * ma.cos(phi)
y = ma.sin(theta) * ma.sin(phi)
z = ma.cos(theta)
matrix = rs.XformRotation3([0, 0, 1], [x, y, z], [0, 0, 0])
basis.append(rs.TransformObject(cone, matrix, True))
rs.DeleteObject(cone)
for crv in ridges:
domain = rs.CurveDomain(crv)
dt = (domain[1] - domain[0]) / 10
for j in range(1, 10):
t = domain[0] + j * dt
point = rs.EvaluateCurve(crv, t)
xaxis = rs.CurveTangent(crv, t)
yaxis = rs.VectorCrossProduct(xaxis, point)
zaxis = rs.VectorCrossProduct(xaxis, yaxis)
matrix = rs.XformRotation3([0, 0, 1], zaxis, [0, 0, 0])
copy = rs.TransformObjects(basis, matrix, True)
matrix = rs.XformTranslation(point)