def text_moveto(self, x, y, angle):
if angle != None:
xcos = math.cos(basecanvas.to_radian(angle))
xsin = math.sin(basecanvas.to_radian(angle))
self.__write("%f %f %f %f %f %f Tm " % (xcos, xsin, -xsin, xcos, x, y))
else:
self.__write("1 0 0 1 %f %f Tm " % (x, y))
def __arcsub(self, x, y, radius, start, theta):
xcos = math.cos(basecanvas.to_radian(theta))
xsin = math.sin(basecanvas.to_radian(theta))
x0 = radius * xcos
y0 = radius * xsin
x1 = radius * (4-xcos)/3.0
y1 = radius * (1-xcos)*(xcos-3)/(3*xsin)
xx0, xy0 = pychart_util.rotate(x0, y0, start+theta)
xx1, xy1 = pychart_util.rotate(x1, -y1, start+theta)
xx2, xy2 = pychart_util.rotate(x1, y1, start+theta)
self.__write("%f %f %f %f %f %f c\n" %
(x+xx1, y+xy1, x+xx2, y+xy2, x+xx0, y+xy0))
def push_transformation(self, baseloc, scale, angle, in_text = 0):
if in_text:
op = "Tm"
else:
op = "cm"
self.gsave()
if baseloc == None:
baseloc = (0,0)
if angle != None:
radian = basecanvas.to_radian(angle)
self.__write("%f %f %f %f %f %f %s\n" %
(math.cos(radian), math.sin(radian),
-math.sin(radian), math.cos(radian),
baseloc[0], baseloc[1], op))
if scale != None:
self.__write("%f 0 0 %f %f %f %s\n" % (scale[0], scale[1],
baseloc[0],
baseloc[1], op))
