def cmap1_init(w, gray):
# Independent variable of control points.
i = array((0., 1.))
if gray:
# Hue for control points. Doesn't matter since saturation is zero.
h = array((0., 0.))
# Lightness ranging from half-dark (for interest) to light.
l = array((0.5, 1.))
# Gray scale has zero saturation
s = array((0., 0.))
else:
# Hue ranges from blue (240 deg) to red (0 or 360 deg)
h = array((240., 0.))
# Lightness and saturation are constant (values taken from C example).
l = array((0.6, 0.6))
s = array((0.8, 0.8))
# number of cmap1 colours is 256 in this case.
w.plscmap1n(256)
# Interpolate between control points to set up cmap1.
w.plscmap1l(0, i, h, l, s)
def plotHistogram(self):
def plfbox(x0, y0):
x = numpy.array([x0, x0, x0 + 1.0, x0 + 1.0])
y = numpy.array([0.0, y0, y0, 0.0])
plplot.plfill(x, y)
plplot.plcol0(1)
plplot.pllsty(1)
plplot.plline(x, y)
self.plot.clearWidget();
y0 = numpy.array([5, 15, 12, 24, 28, 30, 20, 8, 12, 3])
pos = numpy.array([0.0, 0.25, 0.5, 0.75, 1.0])
red = numpy.array([0.0, 0.25, 0.5, 1.0, 1.0])
green = numpy.array([1.0, 0.5, 0.5, 0.5, 1.0])
blue = numpy.array([1.0, 1.0, 0.5, 0.25, 0.0])
plplot.pladv(0)
plplot.plvsta()
plplot.plcol0(2)
plplot.plwind(1980.0, 1990.0, 0.0, 35.0)
plplot.plbox("bc", 1.0, 0, "bcnv", 10.0, 0)
plplot.plcol0(2)
plplot.pllab("Year", "Widget Sales (millions)", "#frPLplot Example 12")
plplot.plscmap1l(1,pos,red,green,blue)
for i in range(10):
plplot.plcol1(i/9.0)
plplot.plpsty(0)
plfbox((1980. + i), y0[i])
string = "%.0f" % (y0[i])
plplot.plptex((1980. + i + .5), (y0[i] + 1.), 1.0, 0.0, .5, string)
string = "%d" % (1980 + i)
plplot.plmtex("b", 1.0, ((i + 1) * .1 - .05), 0.5, string)
self.update()