def main(ycoord=0.970, filename="test"):
myscreen = camvtk.VTKScreen()
myscreen.camera.SetPosition(2, 5, 5)
myscreen.camera.SetFocalPoint(1.38, 1, 0)
#ycoord = 1.1
a = cam.Point(3, ycoord, -2)
b = cam.Point(-1, ycoord, 3)
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)))
#c=cam.Point(0,0,0.3)
myscreen.addActor(camvtk.Line(p1=(a.x, a.y, a.z), p2=(b.x, b.y, b.z)))
#t = cam.Triangle(a,b,c)
cutter = cam.BullCutter(1, 0.2, 20)
print(cutter)
xar = camvtk.Arrow(color=camvtk.red, rotXYZ=(0, 0, 0))
myscreen.addActor(xar)
yar = camvtk.Arrow(color=camvtk.green, rotXYZ=(0, 0, 90))
myscreen.addActor(yar)
zar = camvtk.Arrow(color=camvtk.blue, rotXYZ=(0, -90, 0))
myscreen.addActor(zar)
cl = cam.Point(2.1748, 1, 0)
radius1 = 1
radius2 = 0.25
tor = camvtk.Toroid(r1=radius1,
r2=radius2,
center=(cl.x, cl.y, cl.z),
rotXYZ=(0, 0, 0))
#tor.SetWireframe()
#myscreen.addActor(tor)
cyl = camvtk.Cylinder(center=(cl.x, cl.y, cl.z),
radius=radius1,
height=2,
color=(0, 1, 1),
rotXYZ=(90, 0, 0),
resolution=50)
#myscreen.addActor(cyl)
cl_line = camvtk.Line(p1=(cl.x, cl.y, -100),
p2=(cl.x, cl.y, +100),
color=camvtk.red)
myscreen.addActor(cl_line)
tube = camvtk.Tube(p1=(a.x, a.y, a.z), p2=(b.x, b.y, b.z), color=(1, 1, 0))
tube.SetOpacity(0.2)
myscreen.addActor(tube)
# cylindrical-cutter circle at z=0 plane
#cir= camvtk.Circle(radius=radius1, center=(cl.x,cl.y,cl.z), color=camvtk.yellow)
#myscreen.addActor(cir)
#clp = camvtk.Point(center=(cl.x,cl.y,cl.z))
#myscreen.addActor(clp)
# short axis of ellipse = radius2
# long axis of ellipse = radius2/sin(theta)
# where theta is the slope of the line
dx = b.x - a.x
dz = b.z - a.z
#print "dx=", dx
#print "dz=", dz
theta = math.atan(dz /
dx) ## dx==0 is special case!! (i.e. vertical lines)
print("theta=", theta)
a_axis = abs(radius2 / math.sin(theta))
print("a=", a_axis)
# ellipse
#a=2
b_axis = radius2
print("b= ", b_axis)
# slice the tube with a plane at z=0 and find the ellipse center
# line is from Point a to b:
# a + t*(b-a)
# find t so that z-component is zero:
# a.z + t( b.z -a.z) = 0
# t= a.z / (b.z - a.z)
# so point
tparam = -a.z / (b.z - a.z) # NOTE horizontal lines are a special case!!
ellcenter = a + tparam * (b - a)
print("ellcenter (z=0?) =", ellcenter)
# center of the
# ecen_tmp=cam.Point(ellcenter,a.y,0)
#drawellipse(myscreen, ellcenter, a_axis, b_axis)
oe = cam.Ellipse(ellcenter, a_axis, b_axis, radius1)
#oe2 = cam.Ellipse(ellcenter, a_axis, b_axis, 0.05) # to locate text on the outside of the ellipse
nmax = 20
#delta=0.05
#td = 1
t = camvtk.Text()
t.SetPos((myscreen.width - 450, myscreen.height - 30))
myscreen.addActor(t)
t2 = camvtk.Text()
ytext = "Y: %3.3f" % (ycoord)
t2.SetText(ytext)
t2.SetPos((50, myscreen.height - 150))
myscreen.addActor(t2)
#w2if = vtk.vtkWindowToImageFilter()
#w2if.SetInput(myscreen.renWin)
#lwr = vtk.vtkPNGWriter()
#lwr.SetInput( w2if.GetOutput() )
epos = cam.Epos()
epos.setS(0, 1)
#epos1.setS(0,1)
t.SetText("OpenCAMLib 10.03-beta, " +
datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S"))
#p5 = oe.ePoint(epos5)
#pt = oe2.oePoint(epos5)
#print "before= ", epos5.s, " , ", epos5.t
nsteps = cam.Ellipse.solver(oe, cl)
epos = oe.epos1
cce = oe.ePoint(epos)
cle = oe.oePoint(epos)
#epos2 = cam.Epos()
#epos.s = epos.s
#epos.t = epos.t
#print nsteps
print("solution1 at: ", epos.s, " , ", epos.t)
#print "solution2 at: ", epos2.s , " , ", epos2.t
print(" cl =", cl)
print(" cle=", cle)
xoffset = cl.x - cle.x
print("xoffset= ", xoffset)
# we slide xoffset along the x-axis from ellcenter
# to find the correct z-plane
# line is: a + t*(b-a)
# find t so that x-component is ellcenter.x + xoffset
# a.x + t(b.x-a.x) = ellcenter.x + xoffset
# t= (ellcenter.x + xoffset - a.x) / (b.x - a.x)
tparam2 = (ellcenter.x + xoffset - a.x) / (b.x - a.x)
slide = tparam2 * (b - a)
print("sliding z-delta: ", slide.z)
elc2 = a + tparam2 * (b - a)
print("ellcenter2=", elc2)
#convlist.append(nsteps)
fe = cam.Ellipse(elc2, a_axis, b_axis, radius1)
fecen = camvtk.Sphere(center=(elc2.x, elc2.y, elc2.z),
radius=0.01,
color=camvtk.pink)
myscreen.addActor(fecen)
fccp = fe.ePoint(epos)
fclp = fe.oePoint(epos)
print("solver cl=", fclp, " == ", cl, " ??")
fcir = camvtk.Circle(radius=radius1,
center=(cl.x, cl.y, elc2.z),
color=camvtk.yellow)
myscreen.addActor(fcir)
fccpoint = camvtk.Sphere(center=(fccp.x, fccp.y, fccp.z),
radius=0.01,
color=camvtk.green)
myscreen.addActor(fccpoint)
fclpoint = camvtk.Sphere(center=(fclp.x, fclp.y, fclp.z),
radius=0.01,
color=camvtk.blue)
myscreen.addActor(fclpoint)
# line from ellipse center to fcc
myscreen.addActor(
camvtk.Line(p1=(elc2.x, elc2.y, elc2.z),
p2=(fccp.x, fccp.y, fccp.z),
color=camvtk.cyan))
# the offset normal
myscreen.addActor(
camvtk.Line(p1=(fclp.x, fclp.y, fclp.z),
p2=(fccp.x, fccp.y, fccp.z),
color=camvtk.yellow))
drawellipse(myscreen, elc2, a_axis, b_axis)
#convtext = "%i" % (nsteps)
#print (pt.x, pt.y, pt.z)
#center=(pt.x, pt.y, pt.z)
#tst = camvtk.Text3D( color=(1,1,1), center=(pt.x, pt.y, 0) ,
#text=convtext, scale=0.02)
#tst.SetCamera(myscreen.camera)
#myscreen.addActor(tst)
colmax = 11
colmin = 4
nsteps = nsteps - colmin
colmax = colmax - colmin
convcolor = (float(nsteps * nsteps) / (colmax), float(
(colmax - nsteps)) / colmax, 0)
#esphere = camvtk.Sphere(center=(p5.x,p5.y,0), radius=0.01, color=convcolor)
end_sphere = camvtk.Sphere(center=(cce.x, cce.y, 0),
radius=0.01,
color=camvtk.green)
cl_sphere = camvtk.Sphere(center=(cle.x, cle.y, 0),
radius=0.01,
color=camvtk.pink)
cl_sphere.SetOpacity(0.4)
clcir = camvtk.Circle(radius=radius1,
center=(cle.x, cle.y, cle.z),
color=camvtk.pink)
myscreen.addActor(clcir)
#myscreen.addActor(esphere)
myscreen.addActor(end_sphere)
myscreen.addActor(cl_sphere)
#myscreen.render()
print("done.")
myscreen.render()
lwr.SetFileName(filename)
#lwr.Write()
#raw_input("Press Enter to terminate")
#time.sleep(0.5)
myscreen.iren.Start()
def main(ycoord=1.2, filename="test", theta=60, fi=45):
myscreen = camvtk.VTKScreen()
focal = cam.Point(2.17, 1, 0)
r = 14
theta = (float(theta) / 360) * 2 * math.pi
campos = cam.Point(r * math.sin(theta) * math.cos(fi),
r * math.sin(theta) * math.sin(fi), r * math.cos(theta))
myscreen.camera.SetPosition(campos.x, campos.y, campos.z)
myscreen.camera.SetFocalPoint(focal.x, focal.y, focal.z)
#ycoord = 1.1
# the two points that define the edge
a = cam.Point(3, ycoord, 2.999999)
b = cam.Point(-1, ycoord, 3)
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)))
#c=cam.Point(0,0,0.3)
myscreen.addActor(camvtk.Line(p1=(a.x, a.y, a.z), p2=(b.x, b.y, b.z)))
#t = cam.Triangle(a,b,c)
cutter_length = 2
cutter = cam.BullCutter(1, 0.2, cutter_length)
print cutter
xar = camvtk.Arrow(color=camvtk.red, rotXYZ=(0, 0, 0))
myscreen.addActor(xar)
yar = camvtk.Arrow(color=camvtk.green, rotXYZ=(0, 0, 90))
myscreen.addActor(yar)
zar = camvtk.Arrow(color=camvtk.blue, rotXYZ=(0, -90, 0))
myscreen.addActor(zar)
cl = cam.Point(2.1748, 1, 0)
radius1 = 1
radius2 = 0.25
#tor.SetWireframe()
#myscreen.addActor(tor)
cyl = camvtk.Cylinder(center=(cl.x, cl.y, cl.z),
radius=radius1,
height=2,
color=(0, 1, 1),
rotXYZ=(90, 0, 0),
resolution=50)
#myscreen.addActor(cyl)
cl_line = camvtk.Line(p1=(cl.x, cl.y, -100),
p2=(cl.x, cl.y, +100),
color=camvtk.red)
myscreen.addActor(cl_line)
cl_tube = camvtk.Tube(p1=(cl.x, cl.y, -100),
p2=(cl.x, cl.y, +100),
radius=radius1,
color=camvtk.green)
cl_tube.SetOpacity(0.1)
myscreen.addActor(cl_tube)
a_inf = a + (-100 * (b - a))
b_inf = a + (+100 * (b - a))
tube = camvtk.Tube(p1=(a_inf.x, a_inf.y, a_inf.z),
p2=(b_inf.x, b_inf.y, b_inf.z),
radius=0.05 * radius2,
color=camvtk.red)
tube.SetOpacity(0.3)
myscreen.addActor(tube)
# cylindrical-cutter circle at z=0 plane
#cir= camvtk.Circle(radius=radius1, center=(cl.x,cl.y,cl.z), color=camvtk.yellow)
#myscreen.addActor(cir)
#clp = camvtk.Point(center=(cl.x,cl.y,cl.z))
#myscreen.addActor(clp)
# short axis of ellipse = radius2
# long axis of ellipse = radius2/sin(theta)
# where theta is the slope of the line
dx = b.x - a.x
dz = b.z - a.z
#print "dx=", dx
#print "dz=", dz
theta = math.atan(dz /
dx) ## dx==0 is special case!! (i.e. vertical lines)
print "theta=", theta
a_axis = abs(radius2 / math.sin(theta))
print "a=", a_axis
# ellipse
#a=2
b_axis = radius2
print "b= ", b_axis
# slice the tube with a plane at z=0 and find the ellipse center
# line is from Point a to b:
# a + t*(b-a)
# find t so that z-component is zero:
# a.z + t( b.z -a.z) = 0
# t= a.z / (b.z - a.z)
# so point
tparam = -a.z / (b.z - a.z) # NOTE horizontal lines are a special case!!
ellcenter = a + tparam * (b - a)
print "ellcenter (z=0?) =", ellcenter
# center of the
# ecen_tmp=cam.Point(ellcenter,a.y,0)
#drawellipse(myscreen, ellcenter, a_axis, b_axis)
oe = cam.Ellipse(ellcenter, a_axis, b_axis, radius1)
#oe2 = cam.Ellipse(ellcenter, a_axis, b_axis, 0.05) # to locate text on the outside of the ellipse
nmax = 20
#delta=0.05
#td = 1
t = camvtk.Text()
t.SetPos((myscreen.width - 450, myscreen.height - 30))
t.SetText("OpenCAMLib " +
datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S"))
myscreen.addActor(t)
t2 = camvtk.Text()
ytext = "Y: %3.3f" % (ycoord)
t2.SetText(ytext)
t2.SetPos((50, myscreen.height - 150))
myscreen.addActor(t2)
#w2if = vtk.vtkWindowToImageFilter()
#w2if.SetInput(myscreen.renWin)
#lwr = vtk.vtkPNGWriter()
#lwr.SetInput( w2if.GetOutput() )
epos = cam.Epos()
epos.setS(0, 1)
#p5 = oe.ePoint(epos5)
#pt = oe2.oePoint(epos5)
#print "before= ", epos5.s, " , ", epos5.t
# RUN THE SOLVER!
nsteps = cam.Ellipse.solver(oe, cl)
print "solver done. back to python:"
print "1st (s,t) solution=", oe.epos1
print "2st (s,t) solution=", oe.epos2
elc1 = calcEcenter(oe, a, b, cl, 1)
elc2 = calcEcenter(oe, a, b, cl, 2)
print "elc1=", elc1
print "elc2=", elc2
#exit()
#elc2 = elc2
#epos = oe.epos2
fe1 = cam.Ellipse(elc1, a_axis, b_axis, radius1)
fe2 = cam.Ellipse(elc2, a_axis, b_axis, radius1)
# draw ellipse-centers
myscreen.addActor(
camvtk.Sphere(center=(elc1.x, elc1.y, elc1.z),
radius=0.01,
color=camvtk.lgreen))
myscreen.addActor(
camvtk.Sphere(center=(elc2.x, elc2.y, elc2.z),
radius=0.01,
color=camvtk.pink))
# cc-points on the ellipse
ccp1 = fe1.ePoint(oe.epos1)
ccp2 = fe2.ePoint(oe.epos2)
myscreen.addActor(
camvtk.Sphere(center=(ccp1.x, ccp1.y, ccp1.z),
radius=0.01,
color=camvtk.lgreen))
myscreen.addActor(
camvtk.Sphere(center=(ccp2.x, ccp2.y, ccp2.z),
radius=0.01,
color=camvtk.pink))
cl1 = fe1.oePoint(oe.epos1)
cl2 = fe2.oePoint(oe.epos2)
# circles
myscreen.addActor(
camvtk.Circle(radius=radius1,
center=(cl1.x, cl1.y, cl1.z),
color=camvtk.green))
myscreen.addActor(
camvtk.Circle(radius=radius1,
center=(cl2.x, cl2.y, cl2.z),
color=camvtk.pink))
# torus
tor = camvtk.Toroid(r1=radius1,
r2=radius2,
center=(cl1.x, cl1.y, cl1.z),
rotXYZ=(0, 0, 0),
color=camvtk.green)
tor.SetOpacity(0.4)
myscreen.addActor(tor)
tor = camvtk.Toroid(r1=radius1,
r2=radius2,
center=(cl2.x, cl2.y, cl2.z),
rotXYZ=(0, 0, 0),
color=camvtk.pink)
tor.SetOpacity(0.4)
myscreen.addActor(tor)
# line: ellipse-center to cc-point
myscreen.addActor(
camvtk.Line(p1=(elc1.x, elc1.y, elc1.z),
p2=(ccp1.x, ccp1.y, ccp1.z),
color=camvtk.cyan))
myscreen.addActor(
camvtk.Line(p1=(elc2.x, elc2.y, elc2.z),
p2=(ccp2.x, ccp2.y, ccp2.z),
color=camvtk.cyan))
# line: cc-point to cl-point
myscreen.addActor(
camvtk.Line(p1=(cl1.x, cl1.y, cl1.z),
p2=(ccp1.x, ccp1.y, ccp1.z),
color=camvtk.yellow))
myscreen.addActor(
camvtk.Line(p1=(cl2.x, cl2.y, cl2.z),
p2=(ccp2.x, ccp2.y, ccp2.z),
color=camvtk.yellow))
# true cl
#clt = cc1.
#fclpoint = camvtk.Sphere(center=(fclp.x,fclp.y,fclp.z), radius=0.01, color=camvtk.blue)
#myscreen.addActor(fclpoint)
# line from ellipse center to fcc
# the offset normal
#myscreen.addActor(camvtk.Line( p1=(fclp.x,fclp.y,fclp.z),p2=(fccp.x,fccp.y,fccp.z), color=camvtk.yellow ))
drawellipse(myscreen, elc1, a_axis, b_axis)
drawellipse(myscreen, elc2, a_axis, b_axis)
#convtext = "%i" % (nsteps)
#print (pt.x, pt.y, pt.z)
#center=(pt.x, pt.y, pt.z)
#tst = camvtk.Text3D( color=(1,1,1), center=(pt.x, pt.y, 0) ,
#text=convtext, scale=0.02)
#tst.SetCamera(myscreen.camera)
#myscreen.addActor(tst)
#colmax=11
#colmin=4
#nsteps = nsteps - colmin
#colmax = colmax - colmin
#convcolor=( float(nsteps*nsteps)/(colmax), float((colmax-nsteps))/colmax, 0 )
#esphere = camvtk.Sphere(center=(p5.x,p5.y,0), radius=0.01, color=convcolor)
#cce = oe.ePoint(epos)
#cle = oe.oePoint(epos)
#end_sphere = camvtk.Sphere(center=(cce.x,cce.y,0), radius=0.01, color=camvtk.green)
#cl_sphere = camvtk.Sphere(center=(cle.x,cle.y,0), radius=0.01, color=camvtk.pink)
#cl_sphere.SetOpacity(0.4)
#clcir= camvtk.Circle(radius=radius1, center=(cle.x,cle.y,cle.z), color=camvtk.pink)
#myscreen.addActor(clcir)
#myscreen.addActor(esphere)
#myscreen.addActor(end_sphere)
#myscreen.addActor(cl_sphere)
#myscreen.render()
print "done."
myscreen.render()
lwr.SetFileName(filename)
#raw_input("Press Enter to terminate")
time.sleep(0.5)
#lwr.Write()
myscreen.iren.Start()
print "b= ", b
ecen_tmp = cam.Point(1.38, 2, 0)
resolution = 50
for n in xrange(0, resolution):
angle1 = (float(n) / float(resolution)) * 2 * math.pi
angle2 = (float(n + 1) / float(resolution)) * 2 * math.pi
x = ecen_tmp.x + a * math.cos(angle1)
y = ecen_tmp.y + b * math.sin(angle1)
x2 = ecen_tmp.x + a * math.cos(angle2)
y2 = ecen_tmp.y + b * math.sin(angle2)
#myscreen.addActor(camvtk.Point(center=(x,y,0), color=(1,0,1)))
#myscreen.addActor( camvtk.Line(p1=(x,y,0),p2=(x2,y2,0)) )
oe = cam.Ellipse(ecen_tmp, a, b, radius1)
myscreen.camera.SetPosition(5, 7, 1)
myscreen.camera.SetFocalPoint(0.5, 0.5, 0)
nmax = 80
dd = float(4.0) / nmax
diangles = [n * dd for n in range(nmax)]
epos1 = cam.EllipsePosition()
epos2 = cam.EllipsePosition()
for n in range(nmax):
#s = float(n)/float(nmax-1) * 2-1
#t = oe.teval(s, 1)
#t2 = oe.teval(s, 0)
n2 = n + 1
if n2 == nmax: