def __init__(self, pos, radius, height, mat = None, color = None):
polyhedron = csg.cylinder(radius, height, True)
polyhedron = polyhedron.translate(0, height/2.0, 0)
CSGObject.__init__(self, pos, polyhedron, mat, color)
self.translate(pos)
self._radius = radius
self._height = height
def paintGL(self):
# Create a slab.
self.polyBlock = csg.box(6,2,4,True)
# Punch a hole in it.
cyl = csg.cylinder(1,4,True)
self.polyBlock -= cyl
# Retrieve the vertices and triangles from the
# pyPolyCSG mesh, and condition the numpy arrays
# for rendering in the paingGL() callback.
vertices = self.polyBlock.get_vertices()
triangles = self.polyBlock.get_triangles().astype('uint16').flatten()
# Make up some colors for the vertices.
colors = numpy.array(len(vertices) * [[.7, .7, .7, .999]])
GL.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT)
GL.glLoadIdentity()
GL.glTranslated(0.0, 0.0, -10.0)
GL.glRotated(self.xRot / 16.0, 1.0, 0.0, 0.0)
GL.glRotated(self.yRot / 16.0, 0.0, 1.0, 0.0)
GL.glRotated(self.zRot / 16.0, 0.0, 0.0, 1.0)
# DBC: Modifications from hellogl.py below this line.
scalefactor = .1
GL.glEnableClientState(GL.GL_VERTEX_ARRAY)
GL.glScaled(scalefactor, scalefactor, scalefactor)
GL.glEnableClientState(GL.GL_COLOR_ARRAY);
GL.glColorPointerf(colors)
GL.glVertexPointerf(vertices)
GL.glDrawElementsui(GL.GL_TRIANGLES, triangles)
def makeObject(self):
# Create a slab.
self.polyBlock = csg.box(6,2,4,True)
# Punch a hole in it.
cyl = csg.cylinder(1,4,True)
self.polyBlock -= cyl
# Retrieve the vertices and triangles from the
# pyPolyCSG mesh, and condition the numpy arrays
# for rendering in the paingGL() callback.
vertices = self.polyBlock.get_vertices()
triangles = self.polyBlock.get_triangles().astype('uint16').flatten()
# Make up some colors for the vertices.
colors = numpy.array(len(vertices) * [[.7, .7, .7, .999]])
# Return a tuple of (vertices, triangles, colors)
return (vertices,triangles, colors)
def makeObject(self):
# Create a slab.
self.polyBlock = csg.box(6,2,4,True)
# Punch a hole in it.
cyl = csg.cylinder(1,4,True)
self.polyBlock -= cyl
# Retrieve the vertices and triangles from the
# pyPolyCSG mesh, and condition the numpy arrays
# for rendering in the paingGL() callback.
vertices = self.polyBlock.get_vertices()
triangles = self.polyBlock.get_triangles().astype('uint16').flatten()
# Make up some colors for the vertices.
colors = numpy.array(len(vertices) * [[.7, .7, .7, .999]])
# Return a tuple of (vertices, triangles, colors)
return (vertices,triangles, colors)
# iterative subtraction of cylinder from box, from Dave Curtis
# produces nearly coincident geometry, causes problems when
# probe variable is adjusted, likely due to concident/degenerate
# geometry.
from __future__ import division, print_function, absolute_import, unicode_literals
import pyPolyCSG as csg
probe = 0.05
#probe = 0.9 # works
#probe = 1.0 # works
#probe = 1.1 # fails
#probe = 2.0 # fails
block = csg.box(6, 2, 4, True)
cyl = csg.cylinder(1, 4.5, True)
cyl = cyl.translate(0, probe, 0)
offset = 4
i = 0 # keep track of which iteration failed
while offset > -0.4:
print(i)
i += 1
tool = cyl.translate(offset, 0, 0)
block -= tool
offset -= 0.5
block.save_mesh('tmp_%04d.obj' % i)
print(offset)
block.save_mesh('tmp.obj')
# iterative subtraction of cylinder from box, from Dave Curtis
# produces nearly coincident geometry, causes problems when
# probe variable is adjusted, likely due to concident/degenerate
# geometry.
import pyPolyCSG as csg
#probe = 0.9 # works
#probe = 1.0 # works
#probe = 1.1 # fails
probe = 2.0 # fails
block = csg.box(6,2,4,True)
cyl = csg.cylinder(1,4.5,True)
cyl = cyl.translate(0,probe,0)
offset = 4
i = 0 # keep track of which iteration failed
while offset > -0.4:
print i
i += 1
tool = cyl.translate(offset,0,0)
block -= tool
offset -= 0.5
print offset
block.save_mesh('tmp.obj')
GL.glEnd()
GL.glEndList()
return genList
def normalizeAngle(self, angle):
while angle < 0:
angle += 360 * 16
while angle > 360 * 16:
angle -= 360 * 16
return angle
if __name__ == '__main__':
app = QtGui.QApplication(sys.argv)
window = Window()
# construct a polygon
blk = csg.box(6,2,4,True)
cyl = csg.cylinder(1,4,True)
blk -= cyl
cyl = csg.cylinder(.5,8,True)
cyl = cyl.rotate(90,0,0)
blk -= cyl
cyl = cyl.rotate(0,90,0)
blk -= cyl
# and display it
window.csgPolygon = blk
window.show()
sys.exit(app.exec_())
# example of cylinder primitive # James Gregson ([email protected]), March 2013 # import module import pyPolyCSG as csg # create a cylinder with radius 0.5 and height 2, centered on origin # with 100 sides cyl = csg.cylinder( 0.5, 2.0, True, 100 ) tmp = csg.polyhedron() tmp.make_cylinder( 0.5, 2.0, True, 50 ) tmp.save_mesh("output/cylinder2.obj") # save result as box.obj cyl.save_mesh( "output/cylinder.obj" )
