def gl_fillarea(self, vertices):
fa = self.fillAttributes
clear = 0
polystipple = 0
npts = len(vertices)/2
if fa.fillstyle == 0: # clear region
clear = 1
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL)
elif fa.fillstyle == 1: # hollow
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE)
elif fa.fillstyle >= 2: # solid
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL)
# elif fa.fillstyle > 2: # hatched
# This is commented out since PyOpenGL does not currently support
# glPolygonStipple!
# if fa.fillstyle > 6: fa.fillstyle = 6
# t = self.hatchfills
# print t
# tp = t.patterns
# print tp, "patterns"
# fill = self.hatchfills.patterns[fa.fillstyle]
# print fill, "fill"
# polystipple = 1
# glEnable(GL_POLYGON_STIPPLE)
# glPolygonStipple(fill)
if not clear:
self.colorManager.setDrawingColor(fa.color)
else:
self.colorManager.setDrawingColor(0)
openglutil.glPlot(vertices, GL_POLYGON)
if polystipple:
glDisable(GL_POLYGON_STIPPLE)
def gl_polyline(self, vertices):
# First, set all relevant attributes
la = self.lineAttributes
glPointSize(1.0)
glDisable(GL_LINE_SMOOTH)
glLineWidth(la.linewidth)
stipple = 0
clear = 0
npts = len(vertices)/2
if la.linestyle == 0:
clear = 1 # "clear" linestyle, don't draw!
elif la.linestyle == 1:
pass # solid line
elif 2 <= la.linestyle < len(self.linestyles.patterns):
glEnable(GL_LINE_STIPPLE)
stipple = 1
glLineStipple(1,self.linestyles.patterns[la.linestyle])
if not clear:
self.colorManager.setDrawingColor(la.color)
else:
self.colorManager.setDrawingColor(0)
openglutil.glPlot(vertices, GL_LINE_STRIP)
if stipple:
glDisable(GL_LINE_STIPPLE)
def drawchar(char, font, size, aspect):
# draw character with origin at bottom left corner of character box
charstrokes = font[ord(char) - ord(" ")]
for i in xrange(len(charstrokes[0])):
vertex = Numeric.zeros((len(charstrokes[0][i]), 2), Numeric.Float64)
vertex[:, 0] = size * charstrokes[0][i] / 27.0
vertex[:, 1] = size * charstrokes[1][i] * aspect / 27.0
openglutil.glPlot(vertex.flat, GL_LINE_STRIP)
def gl_polymarker(self, vertices):
# IRAF only implements points for poly marker, that makes it simple
ma = self.markerAttributes
clear = 0
npts = len(vertices)/2
glPointSize(1)
if not clear:
self.colorManager.setDrawingColor(ma.color)
else:
self.colorManager.setDrawingColor(0)
openglutil.glPlot(vertices, GL_POINTS)
