def getcolormap(**kwargs):
colors = kwargs.pop('colors', None)
issingle = False
if colors is None:
colors = kwargs.pop('color', None)
issingle = True
if not colors is None:
if issingle or isinstance(colors, str):
c = getcolor(colors)
cmap = ColorMap(c)
else:
cs = []
for cc in colors:
c = getcolor(cc)
cs.append(c)
cmap = ColorMap(cs)
else:
cmapstr = kwargs.pop('cmap', 'matlab_jet')
if cmapstr is None:
cmapstr = 'matlab_jet'
fn = cmapstr + '.rgb'
fn = os.path.join(migl.get_cmap_folder(), fn)
if not os.path.exists(fn):
raise IOError('cmap file not exists: %s' % fn)
alpha = kwargs.pop('alpha', None)
if alpha is None:
cmap = ColorUtil.loadColorMap(fn)
else:
alpha = (int)(alpha * 255)
cmap = ColorUtil.loadColorMap(fn, alpha)
reverse = kwargs.pop('cmapreverse', False)
if reverse:
cmap.reverse()
return cmap
