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from opencamlib import ocl, camvtk
import math
import os
def drawFiber_clpts(myscreen, f, fibercolor=camvtk.red):
inter = f.getInts()
#print "fiber has ", len(inter) , " intervals"
for i in inter:
if not i.empty():
ip1 = f.point( i.lower )
ip2 = f.point( i.upper )
#myscreen.addActor( camvtk.Line(p1=(ip1.x,ip1.y,ip1.z),p2=(ip2.x,ip2.y,ip2.z), color=fibercolor) )
myscreen.addActor( camvtk.Sphere(center=(ip1.x,ip1.y,ip1.z),radius=0.005, color=camvtk.clColor( i.lower_cc) ) )
myscreen.addActor( camvtk.Sphere(center=(ip2.x,ip2.y,ip2.z),radius=0.005, color=camvtk.clColor( i.upper_cc) ) )
#cc1 = i.lower_cc
#cc2 = i.upper_cc
#myscreen.addActor( camvtk.Sphere(center=(cc1.x,cc1.y,cc1.z),radius=0.005, color=camvtk.pink ) )
#myscreen.addActor( camvtk.Sphere(center=(cc2.x,cc2.y,cc2.z),radius=0.005, color=camvtk.pink ) )
# colors from camvtk.py:
# ocl.CCType.VERTEX: col = red
# ocl.CCType.EDGE_HORIZ: col = orange
# ocl.CCType.EDGE_SHAFT: col = mag
def yfiber(cutter,yvals,t,zh,myscreen):
for y in yvals:
f1 = ocl.Point(-5.5,y,zh) # start point of fiber
f2 = ocl.Point(5.5,y,zh) # end point of fiber
f = ocl.Fiber( f1, f2)
i = ocl.Interval()
cutter.pushCutter(f,i,t)
f.addInterval(i)
drawFiber_clpts(myscreen, f, camvtk.red)
def xfiber(cutter,xvals,t,zh,myscreen):
for x in xvals:
f1 = ocl.Point(x,-5.5,zh) # start point of fiber
f2 = ocl.Point(x,5.5,zh) # end point of fiber
f = ocl.Fiber( f1, f2)
i = ocl.Interval()
cutter.pushCutter(f,i,t)
f.addInterval(i)
drawFiber_clpts(myscreen, f, camvtk.lblue)
def drawScreen(a,b,c,filename,write_flag):
print(ocl.version())
myscreen = camvtk.VTKScreen()
z_hi = a.z
if b.z > z_hi:
z_hi = b.z
if c.z > z_hi:
z_hi = c.z
z_lo = a.z
if b.z < z_lo:
z_lo = b.z
if c.z < z_lo:
z_lo = c.z
#z_hi = 0.3 # this is the shallow case
#ztri = 0.8 # this produces the steep case where we hit the circular rim
#z_lo = 0.1
#a = ocl.Point(0,1,ztri)
#b = ocl.Point(1,0.5,ztri)
#c = ocl.Point(0.2,0.2,ztri_lo)
myscreen.addActor(camvtk.Point(center=(a.x,a.y,a.z), color=(1,0,1)))
myscreen.addActor(camvtk.Point(center=(b.x,b.y,b.z), color=(1,0,1)))
myscreen.addActor(camvtk.Point(center=(c.x,c.y,c.z), color=(1,0,1)))
myscreen.addActor( camvtk.Line(p1=(a.x,a.y,a.z),p2=(c.x,c.y,c.z)) )
myscreen.addActor( camvtk.Line(p1=(c.x,c.y,c.z),p2=(b.x,b.y,b.z)) )
myscreen.addActor( camvtk.Line(p1=(a.x,a.y,a.z),p2=(b.x,b.y,b.z)) )
t = ocl.Triangle(b,c,a)
angle = math.pi/5
diameter=0.3
length=5
#cutter = ocl.BallCutter(diameter, length)
#cutter = ocl.CylCutter(diameter, length)
#cutter = ocl.BullCutter(diameter, diameter/4, length)
cutter = ocl.ConeCutter(diameter, angle, length)
#cutter = cutter.offsetCutter( 0.1 )
print("cutter= ", cutter)
print("length=", cutter.getLength())
print("fiber...")
fiber_range=2
Nmax = 100
yvals = [float(n-float(Nmax)/2)/Nmax*fiber_range for n in range(0,Nmax+1)]
xvals = [float(n-float(Nmax)/2)/Nmax*fiber_range for n in range(0,Nmax+1)]
zmin = z_lo - 0.3
zmax = z_hi
zNmax = 20
dz = (zmax-zmin)/(zNmax-1)
zvals=[]
for n in range(0,zNmax):
zvals.append(zmin+n*dz)
for zh in zvals:
yfiber(cutter,yvals,t,zh,myscreen)
xfiber(cutter,xvals,t,zh,myscreen)
print("done.")
myscreen.camera.SetPosition(-2, -1, 3)
myscreen.camera.SetFocalPoint(1.0, 0.0, -0.5)
camvtk.drawArrows(myscreen,center=(-0.5,-0.5,-0.5))
camvtk.drawOCLtext(myscreen)
myscreen.render()
"""
w2if = vtk.vtkWindowToImageFilter()
w2if.SetInput(myscreen.renWin)
lwr = vtk.vtkPNGWriter()
lwr.SetInput( w2if.GetOutput() )
w2if.Modified()
lwr.SetFileName(filename)
if write_flag:
lwr.Write()
print("wrote ",filename)
"""
#myscreen.iren.Start()
#raw_input("Press Enter to terminate")
if __name__ == "__main__":
ztri = 0.3 # this is the shallow case
#ztri = 0.8 # this produces the steep case where we hit the circular rim
ztri_lo = 0.1
Nmax = 300
thetamax = 2*math.pi
for n in range(0,Nmax):
theta=thetamax/Nmax
a = ocl.Point(0,1,ztri)
a.xRotate(theta*n)
b = ocl.Point(1,0.0,0)
b.xRotate(theta*n)
c = ocl.Point(0.2,0.0,ztri)
c.xRotate(theta*n)
current_dir = os.getcwd()
filename = current_dir + "/frames/conecutter_"+ ('%05d' % n)+".png"
drawScreen(a,b,c,filename, 1)
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