color_Special.py
3.29 KB
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title = "Special"
tip = "applies special manipulations to colorbar"
onein = True
import numpy as np
import guiqwt.colormap as cm
from guidata.qt.QtGui import QMessageBox
from guidata.dataset.datatypes import DataSet
from guidata.dataset.dataitems import (IntItem, StringItem, ChoiceItem, FloatItem, BoolItem)
#from guiqwt.colormap import get_colormap_list, get_cmap, register_extra_colormap
from guiqwt.config import _
from guiqwt.transitional import QwtLinearColorMap, QwtDoubleInterval
FULLRANGE = QwtDoubleInterval(0.0, 1.0)
def nint(x):
if x > 0: return int(x+0.5)
else: return int(x-0.5)
class NOD3_App:
def __init__(self, parent):
self.parent = parent
self.parent.activateWindow()
def Error(self, msg):
QMessageBox.critical(self.parent.parent(), title,
_(u"Error:")+"\n%s" % str(msg))
def compute_app(self, **args):
class FuncParam(DataSet):
special = ChoiceItem("Special", (("Square", "Square"), ("Squareroot", "Squareroot"),
("Linear", "Linear")), default = "Square")
name = title.replace(" ", "")
if args == {}:
param = FuncParam(_(title), "Set special correction to colormap:")
else:
param = self.parent.ScriptParameter(name, args)
# if no parameter needed set param to None. activate next line
#param = None
self.parent.compute_11(name, lambda m, p: self.function(m, p), param, onein)
def setColor(self, a, f=255.0):
y = hex(a)[2:-1]
x = [ord(c) for c in y.decode('hex')]
r = (float(x[1])/f)
g = (float(x[2])/f)
b = (float(x[3])/f)
return r, g, b
def _reverse(self, color):
color.reverse()
return color
def setup_color_map(self, special, f=255.0):
cmap_name = self.parent.cmap
if special == "Linear":
table = cm.get_cmap(cmap_name)
cmap = table.colorTable(FULLRANGE)
else:
item = self.parent.items[self.parent.row]
cmap = item.get_color_map().colorTable(FULLRANGE)
lut = {'red': [], 'green': [], 'blue': []}
for i in range(len(cmap)):
r, g, b = self.setColor(cmap[i])
if special == "Square":
r = r*r
g = g*g
b = b*b
elif special == "Squareroot":
r = np.sqrt(r)
g = np.sqrt(g)
b = np.sqrt(b)
else:
pass
lut['red'].append((float(i)/f, r, r))
lut['green'].append((float(i)/f, g, g))
lut['blue'].append((float(i)/f, b, b))
#lut['red'] = self._reverse(lut['red'])
#lut['green'] = self._reverse(lut['green'])
#lut['blue'] = self._reverse(lut['blue'])
return lut
def function(self, m, p):
cmdata = self.setup_color_map(p.special)
my_cmap = QwtLinearColorMap()
cname = self.parent.cmap + "_special"
cm._setup_colormap(my_cmap, cmdata)
cm.register_extra_colormap(cname, my_cmap)
item = self.parent.items[self.parent.row]
item.set_color_map(cname)
plot = item.plot()
if plot:
#plot.update_colormap_axis(cm.get_cmap(cname))
plot.replot()
return [], p