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()
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 plot_error(results, args):
im = PNGCanvas(40, 15)
im.color = rgb.colors('red')
im.line(0, 0, im.width-1, im.height-1)
im.line(0, im.height-1, im.width-1, 0)
return im.dump()