def __init__(self):
"""Constructor.
"""
global has_glut
GeomObject.__init__(self)
self.text = []
self.boundingbox = BoundingBox()
if not has_glut:
print >>sys.stderr, "WARNING: Cannot draw texts. GLUT is not available."
def boundingBox(self):
"""Return the bounding box of the control polygon.
"""
bb = BoundingBox()
#for p in self.pts:
#bb.addPoint(BezierPoint(p))
return bb
class DrawTextGeom(GeomObject):
"""Geometry object that draw text strings.
This is similar to the C++ Draw class, except that it only draws
texts using GLUT. This functionality isn't incorporated into the
C++ class to prevent a dependency from GLUT. Whereas using Python
you can still use everything else from cgkit if GLUT isn't available
(in this case, a warning will be printed and the texts are simply not
drawn).
"""
def __init__(self):
"""Constructor.
"""
global has_glut
GeomObject.__init__(self)
self.text = []
self.boundingbox = BoundingBox()
if not has_glut:
print >>sys.stderr, "WARNING: Cannot draw texts. GLUT is not available."
def uniformCount(self):
return 0
def varyingCount(self):
return 0
def vertexCount(self):
return 0
def boundingBox(self):
return self.boundingbox
def drawGL(self):
global has_glut
if not has_glut:
return
glPushAttrib(GL_ALL_ATTRIB_BITS)
glDisable(GL_LIGHTING)
# glDisable(GL_DEPTH_TEST)
for pos,txt,font,col in self.text:
x,y,z = pos
r,g,b = col
glColor3d(r,g,b)
glRasterPos3d(x,y,z)
self._drawText(txt, font)
glPopAttrib()
# clear
def clear(self):
"""Clear all texts."""
self.text = []
self.boundingbox = BoundingBox()
# addText
def addText(self, pos, txt, font=None, color=(1,1,1)):
"""Add a text string.
pos contains the 3D position of the string, txt is a string
containing the actual text. font can be one of the constants
defined in GLUT:
- GLUT_BITMAP_8_BY_13
- GLUT_BITMAP_9_BY_15
- GLUT_BITMAP_TIMES_ROMAN_10
- GLUT_BITMAP_TIMES_ROMAN_24
- GLUT_BITMAP_HELVETICA_10
- GLUT_BITMAP_HELVETICA_12
- GLUT_BITMAP_HELVETICA_18
color is the color of the text.
"""
if font==None:
try:
font = GLUT_BITMAP_9_BY_15
except:
font = 0
self.text.append((pos,txt,font,color))
self.boundingbox.addPoint(vec3(pos))
def _drawText(self, txt, font):
for c in txt:
glutBitmapCharacter(font, ord(c))
def clear(self):
"""Clear all texts."""
self.text = []
self.boundingbox = BoundingBox()
def testStandardConstructor(self):
bb = BoundingBox()
self.failUnless(bb.isEmpty(), "Newly constructed bbox is not empty!")
def testStandardConstructor(self):
bb = BoundingBox()
self.assertTrue(bb.isEmpty(), "Newly constructed bbox is not empty!")
def testStandardConstructor(self):
bb = BoundingBox()
self.failUnless(bb.isEmpty(), "Newly constructed bbox is not empty!")
