def plot_sparkline_discrete(results, args, longlines=False):
"""The source data is a list of values between
0 and 100 (or 'limits' if given). Values greater than 95
(or 'upper' if given) are displayed in red, otherwise
they are displayed in green"""
width = int(args.get('width', '2'))
height = int(args.get('height', '14'))
upper = int(args.get('upper', '50'))
below_color = args.get('below-color', 'gray')
above_color = args.get('above-color', 'red')
gap = 4
if longlines:
gap = 0
im = PNGCanvas(len(results)*width-1, height)
im.color = rgb.colors['white']
im.filledRectangle(0, 0, im.width-1, im.height-1)
(dmin, dmax) = [int(x) for x in args.get('limits', '0,100').split(',')]
if dmax < dmin:
dmax = dmin
zero = im.height - 1
if dmin < 0 and dmax > 0:
zero = im.height - (0 - dmin) / (float(dmax - dmin + 1) / (height - gap))
for (r, i) in zip(results, range(0, len(results)*width, width)):
color = (r >= upper) and above_color or below_color
if r < 0:
y_coord = im.height - (r - dmin) / (float(dmax - dmin + 1) / (height - gap))
else:
y_coord = im.height - (r - dmin) / (float(dmax - dmin + 1) / (height - gap))
im.color = rgb.colors[color]
if longlines:
im.filledRectangle(i, zero, i+width-2, y_coord)
else:
im.rectangle(i, y_coord - gap, i+width-2, y_coord)
return im.dump()
def plot_sparkline_smooth(results, args):
step = int(args.get('step', '2'))
height = int(args.get('height', '20'))
(dmin, dmax) = [int(x) for x in args.get('limits', '0,100').split(',')]
im = PNGCanvas((len(results)-1)*step+4, height)
im.color = rgb.colors['white']
im.filledRectangle(0, 0, im.width-1, im.height-1)
coords = zip(range(1,len(results)*step+1, step), [height - 3 - (y-dmin)/(float(dmax - dmin +1)/(height-4)) for y in results])
im.color = [128, 128, 128, 255]
lastx, lasty = coords[0]
for x0, y0, in coords:
im.line(lastx, lasty, x0, y0)
lastx, lasty = x0, y0
min_color = rgb.colors[args.get('min-color', 'green')]
max_color = rgb.colors[args.get('max-color', 'red')]
last_color = rgb.colors[args.get('last-color', 'blue')]
has_min = args.get('min-m', 'false')
has_max = args.get('max-m', 'false')
has_last = args.get('last-m', 'false')
if has_min == 'true':
min_pt = coords[results.index(min(results))]
im.color = min_color
im.rectangle(min_pt[0]-1, min_pt[1]-1, min_pt[0]+1, min_pt[1]+1)
if has_max == 'true':
im.color = max_color
max_pt = coords[results.index(max(results))]
im.rectangle(max_pt[0]-1, max_pt[1]-1, max_pt[0]+1, max_pt[1]+1)
if has_last == 'true':
im.color = last_color
end = coords[-1]
im.rectangle(end[0]-1, end[1]-1, end[0]+1, end[1]+1)
return im.dump()
def plot_sparkline_smooth(results, args):
step = int(args.get('step', '2'))
height = int(args.get('height', '20'))
(dmin, dmax) = [int(x) for x in args.get('limits', '0,100').split(',')]
im = PNGCanvas((len(results)-1)*step+4, height)
im.color = rgb.colors('white')
im.filledRectangle(0, 0, im.width-1, im.height-1)
coords = zip(range(1,len(results)*step+1, step), [height - 3 - (y-dmin)/(float(dmax - dmin +1)/(height-4)) for y in results])
im.color = rgb.colors('gray53')
lastx, lasty = coords[0]
for x0, y0, in coords:
im.line(lastx, lasty, x0, y0)
lastx, lasty = x0, y0
min_color = rgb.colors(args.get('min-color', 'green'))
max_color = rgb.colors(args.get('max-color', 'red'))
last_color = rgb.colors(args.get('last-color', 'blue'))
has_min = args.get('min-m', 'false')
has_max = args.get('max-m', 'false')
has_last = args.get('last-m', 'false')
if has_min == 'true':
min_pt = coords[results.index(min(results))]
im.color = min_color
im.filledRectangle(min_pt[0]-1, min_pt[1]-1, min_pt[0]+1, min_pt[1]+1)
if has_max == 'true':
im.color = max_color
max_pt = coords[results.index(max(results))]
im.filledRectangle(max_pt[0]-1, max_pt[1]-1, max_pt[0]+1, max_pt[1]+1)
if has_last == 'true':
im.color = last_color
end = coords[-1]
im.filledRectangle(end[0]-1, end[1]-1, end[0]+1, end[1]+1)
return im.dump()
def make_image(self):
"""
Creates PNG image with QR Code
"""
boxsize = 10 # pixels per box
offset = 4 # boxes as border
pixelsize = (self.getModuleCount() + offset + offset) * boxsize
canvas = PNGCanvas(pixelsize, pixelsize)
for row in range(self.getModuleCount()):
for column in range(self.getModuleCount()):
if self.isDark(row, column):
pos_x = (column + offset) * boxsize
pos_y = (row + offset) * boxsize
canvas.filledRectangle(pos_x, pos_y, pos_x + boxsize, pos_y + boxsize)
return canvas.dump()
def make_image(self):
'''
Creates PNG image with QR Code
'''
boxsize = 10 # pixels per box
offset = 1 # boxes as border
pixelsize = (self.getModuleCount() + offset + offset) * boxsize
canvas = PNGCanvas(pixelsize, pixelsize)
for row in range(self.getModuleCount()):
for column in range(self.getModuleCount()):
if (self.isDark(row, column) ):
pos_x = (column + offset) * boxsize
pos_y = (row + offset) * boxsize
canvas.filledRectangle(pos_x, pos_y, pos_x + boxsize, pos_y + boxsize)
return canvas.dump()
def make_ranking_icon(request, id = None, icon = False):
if id or icon: # make the smaller version for display (the id) or for saving to the server
width = 80
height = 40
else:
width = 200
height = 200
colors = ([0x25, 0x67, 0x79, 0xff], [0xaf, 0xf3, 0x9b, 0xff], [0xed, 0x1e, 0x79, 0xff], [0x29, 0xaa, 0xe2, 0xff], [0x4d, 0x42, 0x4c, 0xff])
weights = request.session.get('source_weights', DefaultWeights)
sources_to_aggregate = request.session.get('sources_to_aggregate', DefaultSources)
c = PNGCanvas(width,height)
num_colors = len(colors)
# f = open("/var/www/media/handle.png", "rb")
# handle = PNGCanvas(12,12)
# handle.load(f)
num_sources = len(sources_to_aggregate)
if num_sources == 0:
return HttpResponse(mimetype='image/png', content=c.dump())
bar_width = width / num_sources
half = bar_width / 2
i = 0
for source in sources_to_aggregate:
c.color = DataSourceColor.objects.get(datasource=source).color_as_array() #colors[i % num_colors]
bar_height = height - height * (weights[source] / 10.0)
c.filledRectangle(bar_width * i, bar_height, bar_width * (i + 1) - 1, height)
# handle.copyRect(0,0,11,11,10,10,c) #int(bar_height + 6), bar_width * i + half,c)
i += 1
if id:
f = open("/var/www/media/ranking_icons/icon%d.png" % id, "wb")
f.write(c.dump())
f.close()
else:
return HttpResponse(mimetype='image/png', content=c.dump())
def plot_sparkline_discrete(results, args, longlines=False):
"""The source data is a list of values between
0 and 100 (or 'limits' if given). Values greater than 95
(or 'upper' if given) are displayed in red, otherwise
they are displayed in green"""
width = int(args.get('width', '2'))
height = int(args.get('height', '14'))
upper = int(args.get('upper', '50'))
below_color = args.get('below-color', 'dark gray')
above_color = args.get('above-color', 'red')
gap = 4
if longlines:
gap = 0
im = PNGCanvas(len(results)*width-1, height)
im.color = rgb.colors('white')
im.filledRectangle(0, 0, im.width-1, im.height-1)
(dmin, dmax) = [int(x) for x in args.get('limits', '0,100').split(',')]
if dmax < dmin:
dmax = dmin
zero = im.height - 1
if dmin < 0 and dmax > 0:
zero = im.height - (0 - dmin) / (float(dmax - dmin + 1) / (height - gap))
for (r, i) in zip(results, range(0, len(results)*width, width)):
color = (r >= upper) and above_color or below_color
if r < 0:
y_coord = im.height - (r - dmin) / (float(dmax - dmin + 1) / (height - gap))
else:
y_coord = im.height - (r - dmin) / (float(dmax - dmin + 1) / (height - gap))
im.color = rgb.colors(color)
if longlines:
im.filledRectangle(i, zero, i+width-2, y_coord)
else:
im.filledRectangle(i, y_coord - gap, i+width-2, y_coord)
return im.dump()
