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from opencamlib import ocl, camvtk
import time
# note 2018.08: won't run becayse we don't have ocl.Weave()
def generateRange(zmin,zmax,zNmax):
dz = (float(zmax)-float(zmin))/(zNmax-1)
zvals=[]
for n in range(0,zNmax):
zvals.append(zmin+n*dz)
return zvals
if __name__ == "__main__":
print(ocl.version())
myscreen = camvtk.VTKScreen()
#stl = camvtk.STLSurf("../../stl/demo.stl")
stl = camvtk.STLSurf("../../../stl/gnu_tux_mod.stl")
myscreen.addActor(stl)
stl.SetWireframe()
#stl.SetSurface()
stl.SetColor(camvtk.cyan)
polydata = stl.src.GetOutput()
s = ocl.STLSurf()
camvtk.vtkPolyData2OCLSTL(polydata, s)
print("STL surface read,", s.size(), "triangles")
bounds = s.getBounds()
print("STLSurf.Bounds()=", bounds)
cutter = ocl.CylCutter(1.6,5)
#cutter = ocl.BallCutter(0.3,5)
print(cutter)
xmin=-1
xmax=15
N=100
ymin=-1
ymax=15
yvals = generateRange(ymin,ymax,N)
xvals = generateRange(xmin,xmax,N)
#print xvals
zmin = -0.1
zmax = 2.75
zNmax = 5
zvals = generateRange(zmin,zmax,zNmax)
print(" calculating waterlines at ", len(zvals)," different z-heights")
#print zvals
bpcx = ocl.BatchPushCutter()
bpcy = ocl.BatchPushCutter()
bpcx.setXDirection()
bpcy.setYDirection()
bpcx.setSTL(s)
bpcy.setSTL(s)
bpcx.setCutter(cutter)
bpcy.setCutter(cutter)
# create fibers
nfibers=0
for zh in zvals:
for y in yvals:
f1 = ocl.Point(xmin,y,zh) # start point of fiber
f2 = ocl.Point(xmax,y,zh) # end point of fiber
f = ocl.Fiber( f1, f2)
bpcx.appendFiber(f)
nfibers=nfibers+1
for x in xvals:
f1 = ocl.Point(x,ymin,zh) # start point of fiber
f2 = ocl.Point(x,ymax,zh) # end point of fiber
f = ocl.Fiber( f1, f2)
bpcy.appendFiber(f)
nfibers=nfibers+1
# run
t_before = time.time()
bpcx.run()
bpcy.run()
t_after = time.time()
push_calctime = t_after-t_before
clpoints = bpcx.getCLPoints()
clp2=bpcy.getCLPoints()
clpoints+=clp2
print("got ", len(clpoints), " CL-points")
print("rendering raw CL-points.")
# draw the CL-points
#camvtk.drawCLPointCloud(myscreen, clpoints)
#for p in clpoints:
# myscreen.addActor( camvtk.Sphere(center=(p.x,p.y,p.z),radius=0.02, color=camvtk.clColor( p.cc() ) ) )
xfibers = bpcx.getFibers()
yfibers = bpcy.getFibers()
fibers=xfibers+yfibers
# sort fibers into different z-levels
sorted_fibers=[]
for zh in zvals:
zlevel_fibers=[]
for f in fibers:
if f.p1.z == zh:
zlevel_fibers.append(f)
sorted_fibers.append(zlevel_fibers)
print(" found ",len(sorted_fibers)," z-levels")
n=0
loops = []
t2_before = time.time()
for zlev_fibers in sorted_fibers:
print(" z-level ",n," at z=", zvals[n], " has ", len(zlev_fibers), "fibers")
n=n+1
w = ocl.Weave()
for f in zlev_fibers:
w.addFiber(f)
print(" build()...",)
w.build()
print("done")
print(" split()...",)
subw = w.get_components()
print(" graph has ", len(subw)," sub-weaves")
m=0
for sw in subw:
print(m," face_traverse...",)
t_before = time.time()
sw.face_traverse()
t_after = time.time()
calctime = t_after-t_before
print("done in ", calctime," s")
w_loop = sw.getLoops()
for lop in w_loop:
loops.append(lop)
m=m+1
t2_after = time.time()
print(" found", len(loops)," loops")
print(" loop extraction took ", t2_after-t2_before," seconds")
# draw the loops
for lop in loops:
n = 0
N = len(lop)
first_point=ocl.Point(-1,-1,5)
previous=ocl.Point(-1,-1,5)
for p in lop:
if n==0: # don't draw anything on the first iteration
previous=p
first_point = p
elif n== (N-1): # the last point
myscreen.addActor( camvtk.Line(p1=(previous.x,previous.y,previous.z),p2=(p.x,p.y,p.z),color=camvtk.yellow) ) # the normal line
# and a line from p to the first point
myscreen.addActor( camvtk.Line(p1=(p.x,p.y,p.z),p2=(first_point.x,first_point.y,first_point.z),color=camvtk.yellow) )
else:
myscreen.addActor( camvtk.Line(p1=(previous.x,previous.y,previous.z),p2=(p.x,p.y,p.z),color=camvtk.yellow) )
previous=p
n=n+1
t2 = camvtk.Text()
stltext = "%s\n%i triangles\n%i waterlines\n%i Fibers\n%i CL-points\n%i pushCutter() calls\n%0.1f seconds\n%0.3f us/call" \
% ( str(cutter), s.size(), len(zvals), nfibers, len(clpoints), bpc.nCalls, push_calctime, 1e6* push_calctime/bpc.nCalls )
t2.SetText(stltext)
t2.SetPos( (50, myscreen.height-200) )
myscreen.addActor( t2)
print("done.")
myscreen.camera.SetPosition(0.5, 3, 2)
myscreen.camera.SetFocalPoint(0.5, 0.5, 0)
camvtk.drawArrows(myscreen,center=(-0.5,-0.5,-0.5))
camvtk.drawOCLtext(myscreen)
myscreen.render()
myscreen.iren.Start()
#raw_input("Press Enter to terminate")
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