def _draw(self):
p = self.parameters
center = VisionEgg._get_center(p.position, p.anchor,
(p.radius, p.radius))
gl.glDisable(gl.GL_DEPTH_TEST)
gl.glDisable(gl.GL_TEXTURE_2D)
gl.glDisable(gl.GL_BLEND)
gl.glColor(p.color)
start, end = p.start, p.end
if end < start:
start -= 360.
start, end = map(numpy.deg2rad, (start, end))
frac = (end - start) / (2 * numpy.pi)
num_triangles = float(p.num_triangles) * frac
angles = numpy.linspace(start, end, num_triangles)
verts = numpy.zeros((num_triangles, 2))
verts[:, 0] = center[0] + p.radius * numpy.cos(angles)
verts[:, 1] = center[1] + p.radius * numpy.sin(angles)
if p.disk:
gl.glBegin(gl.GL_TRIANGLE_FAN)
gl.glVertex(center)
self._draw_vertices(*verts)
gl.glEnd()
if p.anti_aliasing:
gl.glEnable(gl.GL_LINE_SMOOTH)
gl.glBlendFunc(gl.GL_SRC_ALPHA, gl.GL_ONE_MINUS_SRC_ALPHA)
gl.glEnable(gl.GL_BLEND)
# Draw a second polygon in line mode, so the edges are anti-aliased
gl.glPolygonMode(gl.GL_FRONT_AND_BACK, gl.GL_LINE)
gl.glBegin(gl.GL_TRIANGLE_FAN)
gl.glVertex(center)
self._draw_vertices(*verts)
gl.glEnd()
gl.glPolygonMode(gl.GL_FRONT_AND_BACK, gl.GL_FILL)
gl.glDisable(gl.GL_LINE_SMOOTH)
if p.circle:
if p.anti_aliasing:
gl.glEnable(gl.GL_LINE_SMOOTH)
gl.glColor(p.color_edge)
gl.glLineWidth(p.circle_width)
gl.glBegin(gl.GL_LINES)
for i in range(verts.shape[0] - 1):
self._draw_vertices(verts[i], verts[i + 1])
gl.glEnd()
gl.glDisable(gl.GL_LINE_SMOOTH)
def _draw(self):
p = self.parameters
center = VisionEgg._get_center(p.position, p.anchor, (p.radius, p.radius))
gl.glDisable(gl.GL_DEPTH_TEST)
gl.glDisable(gl.GL_TEXTURE_2D)
gl.glDisable(gl.GL_BLEND)
gl.glColor(p.color)
start, end = p.start, p.end
if end < start:
start -= 360.
start, end = map(numpy.deg2rad, (start, end))
frac = (end - start) / (2 * numpy.pi)
num_triangles = float(p.num_triangles) * frac
angles = numpy.linspace(start, end, num_triangles)
verts = numpy.zeros((num_triangles, 2))
verts[:,0] = center[0] + p.radius * numpy.cos(angles)
verts[:,1] = center[1] + p.radius * numpy.sin(angles)
if p.disk:
gl.glBegin(gl.GL_TRIANGLE_FAN)
gl.glVertex(center)
self._draw_vertices(*verts)
gl.glEnd()
if p.anti_aliasing:
gl.glEnable(gl.GL_LINE_SMOOTH)
gl.glBlendFunc(gl.GL_SRC_ALPHA, gl.GL_ONE_MINUS_SRC_ALPHA)
gl.glEnable(gl.GL_BLEND)
# Draw a second polygon in line mode, so the edges are anti-aliased
gl.glPolygonMode(gl.GL_FRONT_AND_BACK, gl.GL_LINE)
gl.glBegin(gl.GL_TRIANGLE_FAN)
gl.glVertex(center)
self._draw_vertices(*verts)
gl.glEnd()
gl.glPolygonMode(gl.GL_FRONT_AND_BACK, gl.GL_FILL)
gl.glDisable(gl.GL_LINE_SMOOTH)
if p.circle:
if p.anti_aliasing:
gl.glEnable(gl.GL_LINE_SMOOTH)
gl.glColor(p.color_edge)
gl.glLineWidth(p.circle_width)
gl.glBegin(gl.GL_LINES)
for i in range(verts.shape[0]-1):
self._draw_vertices(verts[i], verts[i+1])
gl.glEnd()
gl.glDisable(gl.GL_LINE_SMOOTH)
def draw(self):
p = self.parameters # shorthand
if p.center is not None:
if not hasattr(VisionEgg.config,"_GAVE_CENTER_DEPRECATION"):
logger = logging.getLogger('VisionEgg.MoreStimuli')
logger.warning("Specifying Target2D by deprecated "
"'center' parameter deprecated. Use "
"'position' parameter instead. (Allows "
"use of 'anchor' parameter to set to "
"other values.)")
VisionEgg.config._GAVE_CENTER_DEPRECATION = 1
p.anchor = 'center'
p.position = p.center[0], p.center[1] # copy values (don't copy ref to tuple)
if p.on:
# calculate center
center = VisionEgg._get_center(p.position,p.anchor,p.size)
gl.glMatrixMode(gl.GL_MODELVIEW)
gl.glPushMatrix()
gl.glTranslate(center[0],center[1],0.0)
gl.glRotate(p.orientation,0.0,0.0,1.0)
if len(p.color)==3:
gl.glColor3f(*p.color)
elif len(p.color)==4:
gl.glColor4f(*p.color)
gl.glDisable(gl.GL_DEPTH_TEST)
gl.glDisable(gl.GL_TEXTURE_2D)
gl.glBlendFunc(gl.GL_SRC_ALPHA,gl.GL_ONE_MINUS_SRC_ALPHA)
gl.glEnable(gl.GL_BLEND)
w = p.size[0]/2.0
h = p.size[1]/2.0
gl.glBegin(gl.GL_QUADS)
gl.glVertex3f(-w,-h, 0.0)
gl.glVertex3f( w,-h, 0.0)
gl.glVertex3f( w, h, 0.0)
gl.glVertex3f(-w, h, 0.0)
gl.glEnd() # GL_QUADS
if p.anti_aliasing:
if not self._gave_alpha_warning:
if len(p.color) > 3 and p.color[3] != 1.0:
logger = logging.getLogger('VisionEgg.MoreStimuli')
logger.warning("The parameter anti_aliasing is "
"set to true in the Target2D "
"stimulus class, but the color "
"parameter specifies an alpha "
"value other than 1.0. To "
"acheive anti-aliasing, ensure "
"that the alpha value for the "
"color parameter is 1.0.")
self._gave_alpha_warning = 1
# We've already drawn a filled polygon (aliased), now
# redraw the outline of the polygon (with
# anti-aliasing). (Using GL_POLYGON_SMOOTH results in
# artifactual lines where triangles were joined to
# create quad, at least on some OpenGL
# implementations.)
# Calculate coverage value for each pixel of outline
# and store as alpha
gl.glEnable(gl.GL_LINE_SMOOTH)
# Now specify how to use the alpha value
gl.glBlendFunc(gl.GL_SRC_ALPHA,gl.GL_ONE_MINUS_SRC_ALPHA)
gl.glEnable(gl.GL_BLEND)
# Draw a second polygon in line mode, so the edges are anti-aliased
gl.glPolygonMode(gl.GL_FRONT_AND_BACK,gl.GL_LINE)
gl.glBegin(gl.GL_QUADS)
gl.glVertex3f(-w,-h, 0.0);
gl.glVertex3f( w,-h, 0.0);
gl.glVertex3f( w, h, 0.0);
gl.glVertex3f(-w, h, 0.0);
gl.glEnd() # GL_QUADS
# Set the polygon mode back to fill mode
gl.glPolygonMode(gl.GL_FRONT_AND_BACK,gl.GL_FILL)
gl.glDisable(gl.GL_LINE_SMOOTH)
gl.glPopMatrix()
def draw(self):
p = self.parameters # shorthand
if p.on:
# calculate center
center = VisionEgg._get_center(p.position,p.anchor,(p.radius, p.radius))
gl.glDisable(gl.GL_DEPTH_TEST)
gl.glDisable(gl.GL_TEXTURE_2D)
gl.glDisable(gl.GL_BLEND)
if len(p.color)==3:
gl.glColor3f(*p.color)
elif len(p.color)==4:
gl.glColor4f(*p.color)
# Build filled circle from points
# gl.glBegin(gl.GL_POINTS)
# radius = int(math.ceil(p.radius))
# for i in range(-radius, radius):
# for j in range(-radius, radius):
# if(i * i + j * j < radius * radius):
# gl.glVertex3f(p.position[0] + i, p.position[1] + j, 0.0)
# gl.glEnd() # GL_POINTS
# Build filled circle from triangles (this is typically faster
# then the commented code above with the points)
gl.glBegin(gl.GL_TRIANGLE_FAN)
gl.glVertex3f(p.position[0], p.position[1], 0.0)
angles = Numeric.arange(p.num_triangles)/float(p.num_triangles)*2.0*math.pi
verts = Numeric.zeros( (p.num_triangles,2), Numeric.Float )
verts[:,0] = p.position[0] + p.radius * Numeric.cos(angles)
verts[:,1] = p.position[1] + p.radius * Numeric.sin(angles)
for i in range(verts.shape[0]):
gl.glVertex2fv(verts[i])
gl.glVertex2fv(verts[0])
gl.glEnd() # GL_TRIANGLE_FAN
if p.anti_aliasing:
if not self._gave_alpha_warning:
if len(p.color) > 3 and p.color[3] != 1.0:
logger = logging.getLogger('VisionEgg.Arrow')
logger.warning("The parameter anti_aliasing is "
"set to true in the Arrow "
"stimulus class, but the color "
"parameter specifies an alpha "
"value other than 1.0. To "
"acheive anti-aliasing, ensure "
"that the alpha value for the "
"color parameter is 1.0.")
self._gave_alpha_warning = 1
# We've already drawn a filled polygon (aliased), now redraw
# the outline of the polygon (with anti-aliasing). (Using
# GL_POLYGON_SMOOTH results in artifactual lines where
# triangles were joined to create quad, at least on some OpenGL
# implementations.)
# Calculate coverage value for each pixel of outline
# and store as alpha
gl.glEnable(gl.GL_LINE_SMOOTH)
# Now specify how to use the alpha value
gl.glBlendFunc(gl.GL_SRC_ALPHA,gl.GL_ONE_MINUS_SRC_ALPHA)
gl.glEnable(gl.GL_BLEND)
# Draw a second polygon in line mode, so the edges are anti-aliased
gl.glPolygonMode(gl.GL_FRONT_AND_BACK,gl.GL_LINE)
gl.glBegin(gl.GL_TRIANGLE_FAN)
gl.glVertex3f(p.position[0], p.position[1], 0.0)
angles = Numeric.arange(p.num_triangles)/float(p.num_triangles)*2.0*math.pi
verts = Numeric.zeros( (p.num_triangles,2), Numeric.Float )
verts[:,0] = p.position[0] + p.radius * Numeric.cos(angles)
verts[:,1] = p.position[1] + p.radius * Numeric.sin(angles)
for i in range(verts.shape[0]):
gl.glVertex2fv(verts[i])
gl.glVertex2fv(verts[0])
gl.glEnd() # GL_TRIANGLE_FAN
# Set the polygon mode back to fill mode
gl.glPolygonMode(gl.GL_FRONT_AND_BACK,gl.GL_FILL)
gl.glDisable(gl.GL_LINE_SMOOTH)
def draw(self):
p = self.parameters # Shorthand
if p.on:
# Calculate center
center = VisionEgg._get_center(p.position,p.anchor,p.size)
gl.glMatrixMode(gl.GL_MODELVIEW)
gl.glPushMatrix()
gl.glTranslate(center[0],center[1],0.0)
gl.glRotate(-p.orientation,0.0,0.0,1.0)
if len(p.color)==3:
gl.glColor3f(*p.color)
elif len(p.color)==4:
gl.glColor4f(*p.color)
gl.glDisable(gl.GL_DEPTH_TEST)
gl.glDisable(gl.GL_TEXTURE_2D)
gl.glBlendFunc(gl.GL_SRC_ALPHA,gl.GL_ONE_MINUS_SRC_ALPHA)
gl.glEnable(gl.GL_BLEND)
w = p.size[0]/2.0
h = p.size[1]/2.0
gl.glBegin(gl.GL_QUADS) # Draw Rectangle
gl.glVertex3f( 0.25*w, h, 0.0)
gl.glVertex3f(-w, h, 0.0)
gl.glVertex3f(-w,-h, 0.0)
gl.glVertex3f( 0.25*w, -h, 0.0)
gl.glEnd() # GL_QUADS
gl.glBegin(gl.GL_TRIANGLES) # Draw Triangle
gl.glVertex3f( 1.00*w, 0.0*h, 0.0) # Top
gl.glVertex3f( 0.25*w,-3.0*h, 0.0)
gl.glVertex3f( 0.25*w, 3.0*h, 0.0)
gl.glEnd() # GL_QUADS
if p.anti_aliasing:
if not self._gave_alpha_warning:
if len(p.color) > 3 and p.color[3] != 1.0:
logger = logging.getLogger('VisionEgg.Arrow')
logger.warning("The parameter anti_aliasing is "
"set to true in the Arrow "
"stimulus class, but the color "
"parameter specifies an alpha "
"value other than 1.0. To "
"acheive anti-aliasing, ensure "
"that the alpha value for the "
"color parameter is 1.0.")
self._gave_alpha_warning = 1
# We've already drawn a filled polygon (aliased), now redraw
# the outline of the polygon (with anti-aliasing). (Using
# GL_POLYGON_SMOOTH results in artifactual lines where
# triangles were joined to create quad, at least on some OpenGL
# implementations.)
# Calculate coverage value for each pixel of outline
# and store as alpha
gl.glEnable(gl.GL_LINE_SMOOTH)
# Now specify how to use the alpha value
gl.glBlendFunc(gl.GL_SRC_ALPHA,gl.GL_ONE_MINUS_SRC_ALPHA)
gl.glEnable(gl.GL_BLEND)
# Draw a second polygon in line mode, so the edges are anti-aliased
gl.glPolygonMode(gl.GL_FRONT_AND_BACK,gl.GL_LINE)
gl.glBegin(gl.GL_QUADS)
gl.glVertex3f( 0.25*w, h, 0.0) # Draw Rectangle
gl.glVertex3f(-w, h, 0.0)
gl.glVertex3f(-w,-h, 0.0)
gl.glVertex3f( 0.25*w, -h, 0.0)
gl.glVertex3f( 1.00*w, 0.0*h, 0.0) # Draw Triangle
gl.glVertex3f( 0.25*w,-3.0*h, 0.0)
gl.glVertex3f( 0.25*w, 3.0*h, 0.0)
gl.glEnd() # GL_QUADS
# Set the polygon mode back to fill mode
gl.glPolygonMode(gl.GL_FRONT_AND_BACK,gl.GL_FILL)
gl.glDisable(gl.GL_LINE_SMOOTH)
gl.glPopMatrix()
def draw(self):
p = self.parameters # shorthand
if p.center is not None:
if not hasattr(VisionEgg.config, "_GAVE_CENTER_DEPRECATION"):
logger = logging.getLogger('VisionEgg.MoreStimuli')
logger.warning("Specifying Target2D by deprecated "
"'center' parameter deprecated. Use "
"'position' parameter instead. (Allows "
"use of 'anchor' parameter to set to "
"other values.)")
VisionEgg.config._GAVE_CENTER_DEPRECATION = 1
p.anchor = 'center'
p.position = p.center[0], p.center[
1] # copy values (don't copy ref to tuple)
if p.on:
# calculate center
center = VisionEgg._get_center(p.position, p.anchor, p.size)
gl.glMatrixMode(gl.GL_MODELVIEW)
gl.glPushMatrix()
gl.glTranslate(center[0], center[1], 0.0)
gl.glRotate(p.orientation, 0.0, 0.0, 1.0)
if len(p.color) == 3:
gl.glColor3f(*p.color)
elif len(p.color) == 4:
gl.glColor4f(*p.color)
gl.glDisable(gl.GL_DEPTH_TEST)
gl.glDisable(gl.GL_TEXTURE_2D)
gl.glBlendFunc(gl.GL_SRC_ALPHA, gl.GL_ONE_MINUS_SRC_ALPHA)
gl.glEnable(gl.GL_BLEND)
w = p.size[0] / 2.0
h = p.size[1] / 2.0
gl.glBegin(gl.GL_QUADS)
gl.glVertex3f(-w, -h, 0.0)
gl.glVertex3f(w, -h, 0.0)
gl.glVertex3f(w, h, 0.0)
gl.glVertex3f(-w, h, 0.0)
gl.glEnd() # GL_QUADS
if p.anti_aliasing:
if not self._gave_alpha_warning:
if len(p.color) > 3 and p.color[3] != 1.0:
logger = logging.getLogger('VisionEgg.MoreStimuli')
logger.warning("The parameter anti_aliasing is "
"set to true in the Target2D "
"stimulus class, but the color "
"parameter specifies an alpha "
"value other than 1.0. To "
"acheive anti-aliasing, ensure "
"that the alpha value for the "
"color parameter is 1.0.")
self._gave_alpha_warning = 1
# We've already drawn a filled polygon (aliased), now
# redraw the outline of the polygon (with
# anti-aliasing). (Using GL_POLYGON_SMOOTH results in
# artifactual lines where triangles were joined to
# create quad, at least on some OpenGL
# implementations.)
# Calculate coverage value for each pixel of outline
# and store as alpha
gl.glEnable(gl.GL_LINE_SMOOTH)
# Now specify how to use the alpha value
gl.glBlendFunc(gl.GL_SRC_ALPHA, gl.GL_ONE_MINUS_SRC_ALPHA)
gl.glEnable(gl.GL_BLEND)
# Draw a second polygon in line mode, so the edges are anti-aliased
gl.glPolygonMode(gl.GL_FRONT_AND_BACK, gl.GL_LINE)
gl.glBegin(gl.GL_QUADS)
gl.glVertex3f(-w, -h, 0.0)
gl.glVertex3f(w, -h, 0.0)
gl.glVertex3f(w, h, 0.0)
gl.glVertex3f(-w, h, 0.0)
gl.glEnd() # GL_QUADS
# Set the polygon mode back to fill mode
gl.glPolygonMode(gl.GL_FRONT_AND_BACK, gl.GL_FILL)
gl.glDisable(gl.GL_LINE_SMOOTH)
gl.glPopMatrix()
def draw(self):
p = self.parameters # shorthand
if p.on:
# calculate center
center = VisionEgg._get_center(p.position, p.anchor,
(p.radius, p.radius))
gl.glDisable(gl.GL_DEPTH_TEST)
gl.glDisable(gl.GL_TEXTURE_2D)
gl.glDisable(gl.GL_BLEND)
if len(p.color) == 3:
gl.glColor3f(*p.color)
elif len(p.color) == 4:
gl.glColor4f(*p.color)
# Build filled circle from points
# gl.glBegin(gl.GL_POINTS)
# radius = int(math.ceil(p.radius))
# for i in range(-radius, radius):
# for j in range(-radius, radius):
# if(i * i + j * j < radius * radius):
# gl.glVertex3f(p.position[0] + i, p.position[1] + j, 0.0)
# gl.glEnd() # GL_POINTS
# Build filled circle from triangles (this is typically faster
# then the commented code above with the points)
gl.glBegin(gl.GL_TRIANGLE_FAN)
gl.glVertex3f(p.position[0], p.position[1], 0.0)
angles = Numeric.arange(p.num_triangles) / float(
p.num_triangles) * 2.0 * math.pi
verts = Numeric.zeros((p.num_triangles, 2), Numeric.Float)
verts[:, 0] = p.position[0] + p.radius * Numeric.cos(angles)
verts[:, 1] = p.position[1] + p.radius * Numeric.sin(angles)
for i in range(verts.shape[0]):
gl.glVertex2fv(verts[i])
gl.glVertex2fv(verts[0])
gl.glEnd() # GL_TRIANGLE_FAN
if p.anti_aliasing:
if not self._gave_alpha_warning:
if len(p.color) > 3 and p.color[3] != 1.0:
logger = logging.getLogger('VisionEgg.Arrow')
logger.warning("The parameter anti_aliasing is "
"set to true in the Arrow "
"stimulus class, but the color "
"parameter specifies an alpha "
"value other than 1.0. To "
"acheive anti-aliasing, ensure "
"that the alpha value for the "
"color parameter is 1.0.")
self._gave_alpha_warning = 1
# We've already drawn a filled polygon (aliased), now redraw
# the outline of the polygon (with anti-aliasing). (Using
# GL_POLYGON_SMOOTH results in artifactual lines where
# triangles were joined to create quad, at least on some OpenGL
# implementations.)
# Calculate coverage value for each pixel of outline
# and store as alpha
gl.glEnable(gl.GL_LINE_SMOOTH)
# Now specify how to use the alpha value
gl.glBlendFunc(gl.GL_SRC_ALPHA, gl.GL_ONE_MINUS_SRC_ALPHA)
gl.glEnable(gl.GL_BLEND)
# Draw a second polygon in line mode, so the edges are anti-aliased
gl.glPolygonMode(gl.GL_FRONT_AND_BACK, gl.GL_LINE)
gl.glBegin(gl.GL_TRIANGLE_FAN)
gl.glVertex3f(p.position[0], p.position[1], 0.0)
angles = Numeric.arange(p.num_triangles) / float(
p.num_triangles) * 2.0 * math.pi
verts = Numeric.zeros((p.num_triangles, 2), Numeric.Float)
verts[:, 0] = p.position[0] + p.radius * Numeric.cos(angles)
verts[:, 1] = p.position[1] + p.radius * Numeric.sin(angles)
for i in range(verts.shape[0]):
gl.glVertex2fv(verts[i])
gl.glVertex2fv(verts[0])
gl.glEnd() # GL_TRIANGLE_FAN
# Set the polygon mode back to fill mode
gl.glPolygonMode(gl.GL_FRONT_AND_BACK, gl.GL_FILL)
gl.glDisable(gl.GL_LINE_SMOOTH)
def draw(self):
p = self.parameters # Shorthand
if p.on:
# Calculate center
center = VisionEgg._get_center(p.position, p.anchor, p.size)
gl.glMatrixMode(gl.GL_MODELVIEW)
gl.glPushMatrix()
gl.glTranslate(center[0], center[1], 0.0)
gl.glRotate(-p.orientation, 0.0, 0.0, 1.0)
if len(p.color) == 3:
gl.glColor3f(*p.color)
elif len(p.color) == 4:
gl.glColor4f(*p.color)
gl.glDisable(gl.GL_DEPTH_TEST)
gl.glDisable(gl.GL_TEXTURE_2D)
gl.glBlendFunc(gl.GL_SRC_ALPHA, gl.GL_ONE_MINUS_SRC_ALPHA)
gl.glEnable(gl.GL_BLEND)
w = p.size[0] / 2.0
h = p.size[1] / 2.0
gl.glBegin(gl.GL_QUADS) # Draw Rectangle
gl.glVertex3f(0.25 * w, h, 0.0)
gl.glVertex3f(-w, h, 0.0)
gl.glVertex3f(-w, -h, 0.0)
gl.glVertex3f(0.25 * w, -h, 0.0)
gl.glEnd() # GL_QUADS
gl.glBegin(gl.GL_TRIANGLES) # Draw Triangle
gl.glVertex3f(1.00 * w, 0.0 * h, 0.0) # Top
gl.glVertex3f(0.25 * w, -3.0 * h, 0.0)
gl.glVertex3f(0.25 * w, 3.0 * h, 0.0)
gl.glEnd() # GL_QUADS
if p.anti_aliasing:
if not self._gave_alpha_warning:
if len(p.color) > 3 and p.color[3] != 1.0:
logger = logging.getLogger('VisionEgg.Arrow')
logger.warning("The parameter anti_aliasing is "
"set to true in the Arrow "
"stimulus class, but the color "
"parameter specifies an alpha "
"value other than 1.0. To "
"acheive anti-aliasing, ensure "
"that the alpha value for the "
"color parameter is 1.0.")
self._gave_alpha_warning = 1
# We've already drawn a filled polygon (aliased), now redraw
# the outline of the polygon (with anti-aliasing). (Using
# GL_POLYGON_SMOOTH results in artifactual lines where
# triangles were joined to create quad, at least on some OpenGL
# implementations.)
# Calculate coverage value for each pixel of outline
# and store as alpha
gl.glEnable(gl.GL_LINE_SMOOTH)
# Now specify how to use the alpha value
gl.glBlendFunc(gl.GL_SRC_ALPHA, gl.GL_ONE_MINUS_SRC_ALPHA)
gl.glEnable(gl.GL_BLEND)
# Draw a second polygon in line mode, so the edges are anti-aliased
gl.glPolygonMode(gl.GL_FRONT_AND_BACK, gl.GL_LINE)
gl.glBegin(gl.GL_QUADS)
gl.glVertex3f(0.25 * w, h, 0.0) # Draw Rectangle
gl.glVertex3f(-w, h, 0.0)
gl.glVertex3f(-w, -h, 0.0)
gl.glVertex3f(0.25 * w, -h, 0.0)
gl.glVertex3f(1.00 * w, 0.0 * h, 0.0) # Draw Triangle
gl.glVertex3f(0.25 * w, -3.0 * h, 0.0)
gl.glVertex3f(0.25 * w, 3.0 * h, 0.0)
gl.glEnd() # GL_QUADS
# Set the polygon mode back to fill mode
gl.glPolygonMode(gl.GL_FRONT_AND_BACK, gl.GL_FILL)
gl.glDisable(gl.GL_LINE_SMOOTH)
gl.glPopMatrix()
