def tricolour(wks, xll, yll, height):
#
# Colors
#
blue_index = Ngl.new_color(wks, 0.00, 0.15, 0.50)
white_index = Ngl.new_color(wks, 1.00, 1.00, 1.00)
red_index = Ngl.new_color(wks, 1.00, 0.10, 0.14)
width = 1.5 * height
xx = numpy.zeros(5, 'f')
yy = numpy.zeros(5, 'f')
#
# Draw blue bar.
#
xx = [xll, xll + width / 3., xll + width / 3., xll, xll]
yy = [yll, yll, yll + height, yll + height, yll]
pres = Ngl.Resources()
pres.gsFillColor = blue_index
Ngl.polygon_ndc(wks, xx, yy, pres)
#
# Draw white bar.
#
xx = [xll+width/3., xll + 2.*width/3., xll + 2.*width/3., \
xll+width/3., xll+width/3.]
pres.gsFillColor = white_index
Ngl.polygon_ndc(wks, xx, yy, pres)
#
# Draw red bar.
#
xx = [xll+2.*width/3., xll + width, xll + width, \
xll+2.*width/3., xll+2.*width/3.]
pres.gsFillColor = red_index
Ngl.polygon_ndc(wks, xx, yy, pres)
xx = [xll, xll + width, xll + width, xll, xll]
#
# Perimeter.
#
pres.gsLineColor = 1
Ngl.polyline_ndc(wks, xx, yy, pres)
x[4], y[4] = x[0] , y[0]
#
# Convert the integer color values obtained from the
# named color chart (as entered above) to floating
# point numbers in the range 0. to 1.
#
r, g, b = colors[i][0]/255., colors[i][1]/255., colors[i][2]/255.
poly_res.gsFillColor = [r,g,b] # Ngl.new_color(wks, r, g, b)
#
# Draw a white outline if the color is black, otherwise draw a colored box.
#
if (labels[i] == "Black"):
Ngl.polyline_ndc(wks, x, y, poly_res)
else:
Ngl.polygon_ndc(wks, x, y, poly_res)
#
# Label the boxes.
#
text_res.txFontHeightF = 0.017
Ngl.text_ndc(wks, labels[i], 0.5*(x[0]+x[1]), y[0] + 0.0125, text_res)
rgb_label = "R=%4.2f G=%4.2f B=%4.2f" % (r, g, b)
text_res.txFontHeightF = 0.015
Ngl.text_ndc(wks, rgb_label, 0.5*(x[0]+x[1]), y[3] - 0.0125, text_res)
#
# Plot top and bottom labels.
#
text_res.txFontHeightF = 0.025
Ngl.text_ndc(wks, "Sixteen Sample Colors", 0.5, 0.96, text_res)
text_res.txFontHeightF = 0.018
# Set up info for box. width = 0.07 # Box width height = 0.05 # Box height # Set coordinates for top left corner of the eight boxes. xpos = [0.20,0.40,0.60,0.80,0.20, 0.40, 0.60, 0.80] ypos = [0.13,0.13,0.13,0.13,0.055,0.055,0.055,0.055] # Text resources. txres = Ngl.Resources() txres.txFontHeightF = 0.015 # Decrease size of font txres.txJust = "CenterLeft" # Left justify nboxes = len(xpos) for i in xrange(nboxes): xp = xpos[i] yp = ypos[i] xbox = [xp,xp+width,xp+width,xp,xp] ybox = [yp,yp,yp-height,yp-height,yp] gsres.gsFillColor = colors[i+2] Ngl.polygon_ndc(wks,xbox,ybox,gsres) # Fill the box Ngl.polyline_ndc(wks,xbox,ybox) # Outline the box Ngl.text_ndc(wks,labels[i],xp+width+0.005,yp-height/2.,txres) Ngl.frame(wks) # Now advance the frame. Ngl.end()
#
# Convert the integer color values obtained from the
# named color chart (as entered above) to floating
# point numbers in the range 0. to 1. (as required
# by "Ngl.new_color").
#
r, g, b = colors[i][0]/255., colors[i][1]/255., colors[i][2]/255.
poly_res.gsFillColor = Ngl.new_color(wks, r, g, b)
#
# Draw a white outline if the color is black, otherwise draw a colored box.
#
if (labels[i] == "Black"):
Ngl.polyline_ndc(wks, x, y, poly_res)
else:
Ngl.polygon_ndc(wks, x, y, poly_res)
#
# Label the boxes.
#
text_res.txFontHeightF = 0.017
Ngl.text_ndc(wks, labels[i], 0.5*(x[0]+x[1]), y[0] + 0.0125, text_res)
rgb_label = "R=%4.2f G=%4.2f B=%4.2f" % (r, g, b)
text_res.txFontHeightF = 0.015
Ngl.text_ndc(wks, rgb_label, 0.5*(x[0]+x[1]), y[3] - 0.0125, text_res)
#
# Plot top and bottom labels.
#
text_res.txFontHeightF = 0.025
Ngl.text_ndc(wks, "Sixteen Sample Colors", 0.5, 0.96, text_res)
text_res.txFontHeightF = 0.018
def draw_gons(xshift=0.0, yshift=0.0):
gnres = Ngl.Resources() # Polygon resources
# The filled diamond
gnres.gsFillColor = 98
xdia = numpy.array([0.00, 0.10, 0.20, 0.10, 0.00]) + xshift
ydia = numpy.array([0.10, 0.00, 0.10, 0.20, 0.10]) + yshift
Ngl.polygon_ndc(wks, xdia, ydia, gnres)
# The filled four squares
gnres.gsFillColor = 8
xbox = numpy.array([0.00, 0.05, 0.05, 0.00, 0.00]) + xshift
ybox = numpy.array([0.00, 0.00, 0.05, 0.05, 0.00]) + yshift
Ngl.polygon_ndc(wks, xbox, ybox, gnres)
Ngl.polygon_ndc(wks, xbox + 0.15, ybox, gnres)
Ngl.polygon_ndc(wks, xbox, ybox + 0.15, gnres)
Ngl.polygon_ndc(wks, xbox + 0.15, ybox + 0.15, gnres)
Ngl.polyline_ndc(wks, xbox, ybox)
Ngl.polyline_ndc(wks, xbox + 0.15, ybox)
Ngl.polyline_ndc(wks, xbox, ybox + 0.15)
Ngl.polyline_ndc(wks, xbox + 0.15, ybox + 0.15)
# The shaded slanted boxes attaching the squares
gnres.gsFillColor = 73
xbt1 = numpy.array([0.05, 0.10, 0.10, 0.05, 0.05]) + xshift
ybt1 = numpy.array([0.00, 0.05, 0.10, 0.05, 0.00]) + yshift
xbt2 = ybt1
ybt2 = xbt1
xbt3 = xbt1 + 0.05
ybt3 = ybt1 + 0.10
xbt4 = ybt3
ybt4 = xbt3
gnres.gsFillColor = 1
gnres.gsFillIndex = 17
Ngl.polygon_ndc(wks, xbt1, ybt1, gnres)
Ngl.polygon_ndc(wks, xbt2, ybt2, gnres)
Ngl.polygon_ndc(wks, xbt3, ybt3, gnres)
Ngl.polygon_ndc(wks, xbt4, ybt4, gnres)
Ngl.polyline_ndc(wks, xbt1, ybt1, gnres)
Ngl.polyline_ndc(wks, xbt2, ybt2, gnres)
Ngl.polyline_ndc(wks, xbt3, ybt3, gnres)
Ngl.polyline_ndc(wks, xbt4, ybt4, gnres)
xtb1 = numpy.array([0.10, 0.15, 0.15, 0.10, 0.10]) + xshift
ytb1 = numpy.array([0.05, 0.00, 0.05, 0.10, 0.05]) + yshift
xtb2 = ytb1
ytb2 = xtb1
xtb3 = xtb1 - 0.05
ytb3 = ytb1 + 0.10
xtb4 = ytb3
ytb4 = xtb3
Ngl.polygon_ndc(wks, xtb1, ytb1, gnres)
Ngl.polygon_ndc(wks, xtb2, ytb2, gnres)
Ngl.polygon_ndc(wks, xtb3, ytb3, gnres)
Ngl.polygon_ndc(wks, xtb4, ytb4, gnres)
Ngl.polyline_ndc(wks, xtb1, ytb1, gnres)
Ngl.polyline_ndc(wks, xtb2, ytb2, gnres)
Ngl.polyline_ndc(wks, xtb3, ytb3, gnres)
Ngl.polyline_ndc(wks, xtb4, ytb4, gnres)
iItem = i + j * shape[0]
if (iItem + 1) > rlist["lgItemCount"]:
break
_lg_add_legend_item(wks, rlist["lgItemOrder"][iItem],
(itemsXY[0][j], itemsXY[1][i]), itemsWH, rlist)
def _lg_add_legend_perim(wks, (x, y), (w, h), res):
bres = {}
bres["gsEdgesOn"] = res["lgPerimOn"]
for key in _filter_keys(res, "lgPerimFill"):
bres["gsFill" + key] = res["lgPerimFill" + key]
for key in _filter_keys(res, "lgPerim", exceptions=("On"),
falsepositive="Fill"):
bres["gsEdge" + key] = res["lgPerim" + key]
ngl.polygon_ndc(wks, *_xywh2corners((x, y), (w, h)),
rlistc=_dict2Resource(bres))
def _lg_add_legend_title(wks, (iXY, iWH), res):
if not res["lgTitleOn"]:
return
x, y = list(res["vpXY"])
w, h = list(res["vpWH"])
offset = {"Top": (0, -res["lgTitleOffsetF"] * res["vpWH"][1]),
"Bottom": (0, res["lgTitleOffsetF"] * res["vpWH"][1]),
"Left": (res["lgTitleOffsetF"] * res["vpWH"][0], 0),
"Right": (-res["lgTitleOffsetF"] * res["vpWH"][0], 0)}
if res["lgTitlePosition"] in ("Top", "Bottom"):
w = res["lgTitleExtentF"] * (res["vpWH"][1]
- res["margin"]["Top"] - res["margin"]["Bottom"])
if res["lgTitlePosition"] == "Top":
def draw_gons(xshift=0.0,yshift=0.0): gnres = Ngl.Resources() # Polygon resources # The filled diamond gnres.gsFillColor = "lightpink1" xdia = numpy.array([0.00,0.10,0.20,0.10,0.00]) + xshift ydia = numpy.array([0.10,0.00,0.10,0.20,0.10]) + yshift Ngl.polygon_ndc(wks,xdia,ydia,gnres) # The filled four squares gnres.gsFillColor = "lightslateblue" xbox = numpy.array([0.00,0.05,0.05,0.00,0.00]) + xshift ybox = numpy.array([0.00,0.00,0.05,0.05,0.00]) + yshift Ngl.polygon_ndc(wks,xbox, ybox, gnres) Ngl.polygon_ndc(wks,xbox+0.15,ybox, gnres) Ngl.polygon_ndc(wks,xbox, ybox+0.15,gnres) Ngl.polygon_ndc(wks,xbox+0.15,ybox+0.15,gnres) Ngl.polyline_ndc(wks,xbox, ybox) Ngl.polyline_ndc(wks,xbox+0.15,ybox) Ngl.polyline_ndc(wks,xbox, ybox+0.15) Ngl.polyline_ndc(wks,xbox+0.15,ybox+0.15) # The shaded slanted boxes attaching the squares gnres.gsFillColor = "cyan" xbt1 = numpy.array([0.05,0.10,0.10,0.05,0.05]) + xshift ybt1 = numpy.array([0.00,0.05,0.10,0.05,0.00]) + yshift xbt2 = ybt1 ybt2 = xbt1 xbt3 = xbt1 + .05 ybt3 = ybt1 + .10 xbt4 = ybt3 ybt4 = xbt3 gnres.gsFillColor = "black" gnres.gsFillIndex = 17 Ngl.polygon_ndc(wks,xbt1,ybt1,gnres) Ngl.polygon_ndc(wks,xbt2,ybt2,gnres) Ngl.polygon_ndc(wks,xbt3,ybt3,gnres) Ngl.polygon_ndc(wks,xbt4,ybt4,gnres) Ngl.polyline_ndc(wks,xbt1,ybt1,gnres) Ngl.polyline_ndc(wks,xbt2,ybt2,gnres) Ngl.polyline_ndc(wks,xbt3,ybt3,gnres) Ngl.polyline_ndc(wks,xbt4,ybt4,gnres) xtb1 = numpy.array([0.10,0.15,0.15,0.10,0.10]) + xshift ytb1 = numpy.array([0.05,0.00,0.05,0.10,0.05]) + yshift xtb2 = ytb1 ytb2 = xtb1 xtb3 = xtb1 - .05 ytb3 = ytb1 + .10 xtb4 = ytb3 ytb4 = xtb3 Ngl.polygon_ndc(wks,xtb1,ytb1,gnres) Ngl.polygon_ndc(wks,xtb2,ytb2,gnres) Ngl.polygon_ndc(wks,xtb3,ytb3,gnres) Ngl.polygon_ndc(wks,xtb4,ytb4,gnres) Ngl.polyline_ndc(wks,xtb1,ytb1,gnres) Ngl.polyline_ndc(wks,xtb2,ytb2,gnres) Ngl.polyline_ndc(wks,xtb3,ytb3,gnres) Ngl.polyline_ndc(wks,xtb4,ytb4,gnres)
txres.txFont = 22
for i in xrange(4,14,1):
x0 = startx+(i-4)*delx
x1 = x0+delx
x2 = x1
x3 = x0
x4 = x0
x = [x0,x1,x2,x3,x4]
y0 = starty
y1 = y0
y2 = y1+dely
y3 = y2
y4 = y0
y = [y0,y1,y2,y3,y4]
gsres.gsFillColor = i # Change fill color.
Ngl.polygon_ndc(wks,x,y,gsres)
Ngl.polyline_ndc(wks,x,y,gsres)
if (i == 4):
Ngl.text_ndc(wks,"34.55",x0,y0-dely,txres)
elif(i == 6):
Ngl.text_ndc(wks,"34.61",x0,y0-dely,txres)
elif(i == 8):
Ngl.text_ndc(wks,"34.67",x0,y0-dely,txres)
elif(i == 10):
Ngl.text_ndc(wks,"34.73",x0,y0-dely,txres)
elif(i == 12):
Ngl.text_ndc(wks,"34.79",x0,y0-dely,txres)
Ngl.text_ndc(wks,"34.85",startx+10*delx,y0-dely,txres)
#
# Draw the trajectories.
# Loop on the saturations.
#
sindex = 0
for saturation in saturations:
r, g, b = Ngl.hsvrgb(hue, saturation, value)
poly_res.gsFillColor = [r, g, b] # Ngl.new_color(wks,r,g,b)
rlen = 0.25 * (3. * saturation + 1.)
x[1] = math.cos(angle1) * rlen
y[1] = math.sin(angle1) * rlen
x[2] = math.cos(angle2) * rlen
y[2] = math.sin(angle2) * rlen
xc = 0.1 + (x +
1.2) / 3. # Conceptual user space is [-1.2, 1.2] in
yc = 0.1 + (y +
1.2) / 3. # X and Y -- map to [0.1, 0.9] NDC space.
Ngl.polygon_ndc(wks, xc, yc, poly_res)
x[0] = x[1]
x[3] = x[2]
y[0] = y[1]
y[3] = y[2]
#
# Label the saturation levels (the zero saturation
# level at the center of the wheel is not labeled).
#
if (saturation != 0.):
text_res.txFontHeightF = 0.022
text_res.txJust = "CenterCenter"
slabel = "S = %4.2f" % (saturation)
Ngl.text_ndc(wks, slabel, 0.5, slab_y[sindex], text_res)
sindex = sindex + 1
# Set up info for box.
width = 0.07 # Box width
height = 0.05 # Box height
# Set coordinates for top left corner of the eight boxes.
xpos = [0.20, 0.40, 0.60, 0.80, 0.20, 0.40, 0.60, 0.80]
ypos = [0.13, 0.13, 0.13, 0.13, 0.055, 0.055, 0.055, 0.055]
# Text resources.
txres = Ngl.Resources()
txres.txFontHeightF = 0.015 # Decrease size of font
txres.txJust = "CenterLeft" # Left justify
nboxes = len(xpos)
for i in xrange(nboxes):
xp = xpos[i]
yp = ypos[i]
xbox = [xp, xp + width, xp + width, xp, xp]
ybox = [yp, yp, yp - height, yp - height, yp]
gsres.gsFillColor = colors[i + 2]
Ngl.polygon_ndc(wks, xbox, ybox, gsres) # Fill the box
Ngl.polyline_ndc(wks, xbox, ybox) # Outline the box
Ngl.text_ndc(wks, labels[i], xp + width + 0.005, yp - height / 2., txres)
Ngl.frame(wks) # Now advance the frame.
Ngl.end()
#
# Loop on the saturations.
#
sindex = 0
for saturation in saturations:
r,g,b = Ngl.hsvrgb(hue,saturation,value)
poly_res.gsFillColor = Ngl.new_color(wks,r,g,b)
rlen = 0.25*(3.*saturation + 1.)
x[1] = math.cos(angle1) * rlen
y[1] = math.sin(angle1) * rlen
x[2] = math.cos(angle2) * rlen
y[2] = math.sin(angle2) * rlen
xc = 0.1 + (x + 1.2)/3. # Conceptual user space is [-1.2, 1.2] in
yc = 0.1 + (y + 1.2)/3. # X and Y -- map to [0.1, 0.9] NDC space.
Ngl.polygon_ndc(wks,xc,yc,poly_res)
x[0] = x[1]
x[3] = x[2]
y[0] = y[1]
y[3] = y[2]
#
# Label the saturation levels (the zero saturation
# level at the center of the wheel is not labeled).
#
if (saturation != 0.):
text_res.txFontHeightF = 0.022
text_res.txJust = "CenterCenter"
slabel = "S = %4.2f" % (saturation)
Ngl.text_ndc(wks, slabel, 0.5, slab_y[sindex],text_res)
sindex = sindex+1