misc_Plot.py
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# -*- coding: utf-8 -*-
title = "PlotMap"
tip = "plots final map with grid and overlay"
onein = True
import numpy as np
import copy as cp
from guidata.qt.QtGui import QMessageBox, QApplication, QFileDialog
from guidata.dataset.datatypes import DataSet
from guidata.dataset.dataitems import (IntItem, StringItem, ChoiceItem, FloatItem, BoolItem)
from guiqwt.config import _
from guiqwt.histogram import hist_range_threshold
import guiqwt.colormap as cm
from kapteyn import maputils, mplutil, wcs
from matplotlib import pylab as plt
from guiqwt.transitional import QwtLinearColorMap, QwtDoubleInterval
FULLRANGE = QwtDoubleInterval(0.0, 1.0)
RAD = np.pi/180.0
def nint(x):
if x > 0: return int(x+0.5)
else: return int(x-0.5)
def deg2dms(x, round=False, dx=1.0/36000.0):
if x > 180.0: x -= 360.0
if x < 0: ds = "-"
elif x == 0: ds = " "
else: ds = "+"
xD = int(x)
xM = int(abs(x-xD)*60+dx)
if round:
xS = int((abs((x-xD)*60)-xM)*60)
else:
xS = (abs((x-xD)*60)-xM)*60
return "%c%d^{\circ}%2.2d^{\prime}" % (ds, abs(xD), xM)
def append_color_bar(fshape, scale=12, size=0.05, pad=0.05, orientation='horizontal'):
rows, cols = fshape
x = scale
y = scale * float(rows)/float(cols)
f = scale / max(x, y)
x *= f
y *= f
plt.close()
fig = plt.figure(figsize=(x, y), facecolor='w')
if orientation == 'horizontal':
frame = fig.add_axes([0.1,0.2, 0.8,0.7], axisbg='w')
cbframe = fig.add_axes((0.15, 0.15-pad-size, 0.7, size))
else:
frame = fig.add_axes([0.1,0.15, 0.75,0.7], axisbg='w')
cbframe = fig.add_axes((0.825+pad, 0.15, size, 0.7))
return frame, cbframe
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):
self.Units = ("Hour/Degree", "Min/Arcmin", "Sec/Arcsec")
class FuncParam(DataSet):
scale = FloatItem("Scale plot:", default=10, min=3, max=12)
#ticks = IntItem("ticks[arcmin]:", default=-1, min=-1)
numticks = IntItem("number of ticks:", default=5, min=2, max=12)
cbar = ChoiceItem("Colorbar:", (('horizontal', 'horizontal'), ('vertical', 'vertical')), default='Vertical')
relcoord = BoolItem("Relative coordinates", default=False)
ngrid = BoolItem("native grid", default=True)
#deltax = IntItem("Increment Longitude:", min=1)
#deltay = IntItem("Increment Latitude:", min=1)
#unit = ChoiceItem("Unit:", zip(self.Units, self.Units), default=self.Units[1])
overcolor = ChoiceItem("Overlay color:", (('default', 'default'),('black', 'black'),
('white', 'white')), default='default')
gridcolor = ChoiceItem("Grid color:", (('black', 'black'), ('white', 'white')),
default='black')
beam = ChoiceItem("Beam position:", (('No', 'No'), ('BL', 'BL'), ('BR', 'BR'),
('TL', 'TL'), ('TR', 'TR')),
default='No')
plot = BoolItem("save as PDF", default=False)
name = title.replace(" ", "")
if args == {}:
param = FuncParam(_(title), "Setup your plot:")
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 setup_lut(self, cmap, f=255.0):
lut = [[], [], []]
for i in range(len(cmap)):
r, g, b = self.setColor(cmap[i])
lut[0].append(r)
lut[1].append(g)
lut[2].append(b)
return np.array(lut).T
def get_axes_style(self):
"""Get axis styles from NOD3 main setups"""
axes = {0: 'left', 1: 'right', 2: 'bottom', 3: 'top'}
self.left = {'Tstyle': 'normal', 'style': 'normal', 'style_bold': 'normal'}
self.right = {'Tstyle': 'normal', 'style': 'normal', 'style_bold': 'normal'}
self.bottom = {'Tstyle': 'normal', 'style': 'normal', 'style_bold': 'normal'}
self.top = {'Tstyle': 'normal', 'style': 'normal', 'style_bold': 'normal'}
styles = ('title', 'color', 'family', 'size', 'bold', 'italic')
for axis in range(4):
if nint(self.equinox) == 2000: ex = " (J2000)"
elif nint(self.equinox) == 1950: ex = " (B1950)"
else: ex = str(" (%f)" % self.equinox)
unit = self.parent.plot.axes_styles[axis].unit
title = self.parent.plot.axes_styles[axis].title.replace("dRA", "RA"+ex).replace("dDEC", "DEC"+ex)
if unit != None and unit.strip() != "": title += " (" + unit + ")"
color = self.parent.plot.axes_styles[axis].color
exec("self." + axes[axis] + "['title'] = title")
exec("self." + axes[axis] + "['color'] = color")
for style in styles[styles.index('family'):]:
val1 = eval("self.parent.plot.axes_styles[axis].ticks_font."+ style)
exec("self." + axes[axis] + "[style] = val1")
if style == 'italic' and val1: exec("self." + axes[axis] + "['style'] = 'italic'")
if style == 'bold' and val1: exec("self." + axes[axis] + "['style_bold'] = 'bold'")
val2 = eval("self.parent.plot.axes_styles[axis].title_font."+ style)
exec("self." + axes[axis] + "['T'+style] = val2")
if style == 'italic' and val2: exec("self." + axes[axis] + "['Tstyle'] = 'italic'")
if style == 'bold' and val2: exec("self." + axes[axis] + "['Tstyle_bold'] = 'bold'")
def getCoord(self, positions, mat):
newpos = []
for pos in positions:
newp = []
for p in pos:
l, b = p
x = np.cos(RAD*b)*np.cos(RAD*l)
y = np.cos(RAD*b)*np.sin(RAD*l)
z = np.sin(RAD*b)
xyz = np.dot(np.array(mat), np.array([x,y,z]))
l1 = np.arctan2(xyz[1], xyz[0])
b1 = np.arctan2(xyz[2], np.sqrt(xyz[1]**2 + xyz[0]**2))
newp.append((l1/RAD, b1/RAD))
newpos.append(newp)
return newpos
def rotmat_x(self, a):
xrot = [[1.0, 0.0, 0.0], \
[0.0, np.cos(a*RAD), -np.sin(a*RAD)], \
[0.0, np.sin(a*RAD), np.cos(a*RAD)]]
return xrot
def function(self, m, p):
found = False
visible = True
for item in self.parent.items:
if item.isVisible():
m.data = item.data
m.header = item.header
if 'EQUINOX' in m.header:
self.equinox = m.header['EQUINOX']
elif 'EPOCH' in m.header:
self.equinox = m.header['EPOCH']
found = True
#if not found: return [], p
if not found:
image = self.parent.items[self.parent.row]
visible = False
# check if image is allready plotted (onein = True)!!
if hasattr(self.parent, 'isPlotted'): return [], p
self.parent.isPlotted = True
self.get_axes_style()
fs = 0.15 * p.scale
desc = False
#orientation = 'horizontal'
#orientation = 'vertical'
orientation = p.cbar
if 'SCANDIR' in m.header: scandir = m.header['SCANDIR']
else: scandir = None
offsetx = False
if not p.relcoord:
m.header['CTYPE1'] = m.header['CTYPE1'].replace("DES", "CAR")
m.header['CTYPE2'] = m.header['CTYPE2'].replace("DES", "CAR")
if m.header['CTYPE1'][:4] == "GLON":
self.bottom['title'] = "Galactic Longitude"
self.left['title'] = "Galactic Latitude"
if 'CROTA1' in m.header:
if abs(m.header['CROTA1']) > 1.0:
self.bottom['title'] = "Longitude"
self.left['title'] = "Latitude"
m.header['CROTA1'] = 0.0
if 'CROTA2' in m.header:
if abs(m.header['CROTA2']) > 1.0:
self.bottom['title'] = "Longitude"
self.left['title'] = "Latitude"
m.header['CROTA2'] = 0.0
if self.parent.descript:
xoff = m.header['CRVAL1']
yoff = m.header['CRVAL2']
else:
xoff = 0.0
yoff = 0.0
f1 = 1./np.cos(np.pi/180 * yoff)
else:
desc = True
xoff = 0.0
yoff = 0.0
f1 = 1.0
if m.header['CTYPE1'].endswith("DES") or scandir == "ALON" or p.relcoord:
offsetx = True
m.header['CTYPE1'] = m.header['CTYPE1'].replace("DES", "CAR")
m.header['CTYPE2'] = m.header['CTYPE2'].replace("DES", "CAR")
m.header['CRVAL1'] = 0.0
m.header['CRVAL2'] = 0.0
m.header['CRPIX1'] = m.header['NAXIS1']/2.0
m.header['CRPIX2'] = m.header['NAXIS2']/2.0
if m.header['CTYPE1'][:4] == "GLON":
self.bottom['title'] = "Galactic Longitude"
self.left['title'] = "Galactic Latitude"
if 'CROTA1' in m.header:
if abs(m.header['CROTA1']) > 1.0:
self.bottom['title'] = "Longitude"
self.left['title'] = "Latitude"
m.header['CROTA1'] = 0.0
if 'CROTA2' in m.header:
if abs(m.header['CROTA2']) > 1.0:
self.bottom['title'] = "Longitude"
self.left['title'] = "Latitude"
m.header['CROTA2'] = 0.0
if 'SCANDIR' in m.header and m.header['SCANDIR'][:2] == "AL":
m.header['CTYPE1'] = "ALON-SFL"
m.header['CTYPE2'] = "ALAT-SFL"
self.bottom['title'] = "Azimuth"
self.left['title'] = "Elevation"
m.header['CRVAL1'] = 0.0
m.header['CRVAL2'] = 0.0
desc = True
coord = m.header['CTYPE1'][:4].replace("-", "")
proj = m.header['CTYPE1'][-3:]
rows, cols = m.data.shape
m.header['NAXIS'] = 2
m.header['NAXIS1'] = cols
m.header['NAXIS2'] = rows
sizex, sizey = abs(m.header['CDELT1']*(cols-1)), m.header['CDELT2']*(rows-1)
b0 = m.header['CRVAL2'] + m.header['CDELT2'] * m.header['NAXIS2']/2
sizex = sizex/np.cos(np.pi/180.0 * b0)
numticks = float(p.numticks)
deltax = max(sizex, sizey) / numticks
deltay = deltax*np.cos(np.pi/180*m.header['CRVAL2'])
#fscal = 60.0**self.Units.index(p.unit)
#deltax = p.deltax/fscal
#deltay = p.deltay/fscal
def smart_ticks(delta, unit):
sign = np.sign(delta)
delta = abs(delta)
delta = int(delta*unit + 1.0e-6)
if delta > 4 and delta < 8:
delta = 5
elif delta > 7 and delta < 13:
delta = 10
elif delta > 12 and delta < 18:
delta = 15
elif delta > 17 and delta < 26:
delta = 20
elif delta > 25:
delta = 30
else:
delta = max(1, int(delta))
return sign*delta/unit
if int(abs(deltay)) > 0:
deltay = int(deltay)
self.DMS = "Dms"
elif int(abs(deltay*60)) > 0:
deltay = smart_ticks(deltay, 60.0)
self.DMS = "DMs"
elif int(abs(deltay*3600)) >= 0:
deltay = smart_ticks(deltay, 3600.0)
self.DMS = "DMS"
if m.header['CTYPE1'][:2].upper() == "RA":
fra = 15.0
else:
fra = 1
deltax = deltax/fra
if int(abs(deltax)) > 0:
deltax = int(deltax)
self.HMS = "Hms"
elif int(abs(deltax*60)) > 0:
deltax = smart_ticks(deltax, 60)
self.HMS = "HMs"
elif int(abs(deltax*3600)) >= 0:
deltax = smart_ticks(deltax, 3600.0)
self.HMS = "HMS"
deltax = deltax*fra
# stop app if number of tickmarks extends 15
if max(sizex, sizey) / max(deltax, deltay) > 15:
self.Error("too many tickmarks: %d" % int(max(sizex, sizey) / max(deltax, deltay)))
return [], p
overlays = []
for item in self.parent.plot.itemList():
if item.isVisible():
if str(item).find("image") > 0:
image = item
else:
overlays.append(item)
cmap = image.get_color_map().colorTable(FULLRANGE)
lut = self.setup_lut(cmap)
lut_name = mplutil.VariableColormap(lut)
title = self.top['title']
calunit = self.right['title']
f = maputils.FITSimage(externalheader=m.header, externaldata=m.data)
frame, cbframe = append_color_bar(m.data.shape, scale=p.scale,
size=0.015, pad=0.01, orientation=orientation)
frame.set_title(title, fontsize=fs*self.top['Tsize'])
mplim = f.Annotatedimage(frame, cmap=lut_name, clipmin=image.min, clipmax=image.max)
if self.parent.InterpolationMode:
im = mplim.Image(interpolation='bicubic', visible=visible)
else:
im = mplim.Image(interpolation='nearest', visible=visible)
#cunit = str("\n%s" % calunit)
cunit = str("%s" % calunit)
colbar = mplim.Colorbar(fontsize=fs*self.right['Tsize'], orientation=orientation,
clines=True, frame=cbframe)
if orientation == "horizontal":
colbar.set_label(label=cunit, fontsize=fs*self.right['Tsize'], rotation=0.0, style=self.right['Tstyle'])
else:
colbar.set_label(label=cunit, fontsize=fs*self.right['Tsize'], rotation=90.0, style=self.right['Tstyle'])
gr = mplim.Graticule(deltax=deltax, deltay=deltay, offsetx=offsetx)
if self.bottom['title'].lower() == "pixel":
def wsc2pix(x):
#if x > 180.0: x -= 360.0
pix = (x - m.header['CRVAL1'])/m.header['CDELT1'] + m.header['CRPIX1'] - 1
return int(pix+0.5)
def wsc2piy(x):
piy = (x - m.header['CRVAL2'])/m.header['CDELT2'] + m.header['CRPIX2'] - 1
return int(piy+0.5)
gr.setp_ticklabel(fmt='%d', fun=wsc2pix, plotaxis='bottom')
gr.setp_ticklabel(fmt='%d', fun=wsc2piy, plotaxis='left')
elif coord == "GLON":
gr.setp_ticklabel(fmt="%.2f^{\circ}", tol=1.e-6)
elif desc:
gr.setp_ticklabel(fmt='%s', fun=deg2dms) # Suppress the seconds in all labels
else:
if sizex < 1.5 and m.header['CTYPE1'][:2] == "RA":
gr.setp_ticklabel(fmt=self.HMS, plotaxis='bottom') # Suppress the seconds in all labels
gr.setp_ticklabel(fmt=self.DMS, plotaxis='left') # Suppress the seconds in all labels
else:
gr.setp_ticklabel(fmt=self.HMS, plotaxis='bottom') # Suppress the seconds in all labels
gr.setp_ticklabel(fmt=self.DMS, plotaxis='left') # Suppress the seconds in all labels
gr.setp_gratline(color='red')
if p.ngrid:
gr.setp_gratline(visible=True, linewidth=0.5, linestyle='solid', color=p.gridcolor)
#gr.setp_tickmark(markersize=-6, markeredgewidth=1.5, color=p.gridcolor, alpha=1.0)
gr.setp_tickmark(markersize=-4, markeredgewidth=0.8, color='black', alpha=1.0)
else:
gr.setp_gratline(visible=False)
#gr.setp_tickmark(markersize=-6, markeredgewidth=1.5, color=p.gridcolor, alpha=1.0)
gr.setp_tickmark(markersize=-4, markeredgewidth=0.8, color='black', alpha=1.0)
# Beam:
if p.beam != "No" and 'BMAJ' in m.header:
bx = m.header['BMAJ']
by = m.header['BMIN']
dx = abs(m.header['CDELT1'])
dy = abs(m.header['CDELT2'])
rows, cols = m.data.shape
bdx = max(0.05*cols, 0.75*max(bx/dx, by/dy))
bdy = max(0.05*rows, 0.75*max(bx/dx, by/dy))
if p.beam == "BL":
px = bdx
py = bdy
elif p.beam == "TL":
px = bdx
py = rows - bdy
elif p.beam == "BR":
px = cols - bdx
py = bdy
elif p.beam == "TR":
px = cols - bdx
py = rows - bdy
if 'BPA' in m.header:
pa = m.header['BPA']
else:
pa = 0.0
pos = str("%d %d" % (px, py))
fc = p.gridcolor[0]
beam = mplim.Beam(bx, by, pa=pa, pos=pos, fc=fc, fill=True, alpha=0.75)
# Overlays:
proj = wcs.Projection(m.header)
for overlay in overlays:
if hasattr(overlay, 'Factor'):
f = overlay.Factor
else:
f = 1.0
if p.overcolor != 'default':
overlay.Color = p.overcolor
if hasattr(overlay, 'Name'):
if overlay.Name == "Contours":
mplim.data = overlay.Data
cont = mplim.Contours(levels=overlay.Levels, colors=overlay.Color,
linewidth=overlay.Linewidth)
elif overlay.Name == 'Lines':
# rotate map first if CROTA != 0.0
if 'CROTA2' in m.header:
rotang = m.header['CROTA2']
else:
rotang = 0.0
if rotang != 0.0:
mat = self.rotmat_x(rotang)
Positions = self.getCoord(overlay.Positions, mat)
else:
Positions = overlay.Positions
for pos1, pos2 in Positions:
if hasattr(overlay, 'Pixel') and overlay.Pixel:
pos1 = proj.toworld(pos1)
pos2 = proj.toworld(pos2)
lons = ((xoff+f1*pos1[0])/f, (xoff+f1*pos2[0])/f)
lats = ((yoff+pos1[1])/f, (yoff+pos2[1])/f)
line = mplim.Skypolygon(prescription=None, lons=lons, lats=lats,
color=overlay.Color, linewidth=overlay.Linewidth)
elif overlay.Name == 'Polygons':
for polygon in overlay.Positions:
n1, n2 = np.shape(polygon)
lons = []
lats = []
for pos in polygon:
if hasattr(overlay, 'Pixel') and overlay.Pixel:
pos = proj.toworld(pos)
lons.append((xoff+f1*pos[0])/f)
lats.append((yoff+pos[1])/f)
line = mplim.Skypolygon(prescription=None, lons=lons, lats=lats, fill=False,
color=overlay.Color, linewidth=overlay.Linewidth)
# set NOD3 style setup:
gr.setp_axislabel("bottom", label= self.bottom['title'], fontsize=fs*self.bottom['Tsize'],
fontstyle=self.bottom['Tstyle'], color=self.bottom['color'])
gr.setp_axislabel("left", label= self.left['title'], fontsize=fs*self.left['Tsize'],
fontstyle=self.left['Tstyle'], color=self.left['color'])
gr.setp_axislabel("right", label= self.right['title'], fontsize=fs*self.right['Tsize'],
fontstyle=self.right['Tstyle'], color=self.right['color'])
gr.setp_ticklabel(plotaxis='bottom', color=self.bottom['color'], rotation=0.0,
fontsize=fs*self.bottom['size'], fontweight=self.bottom['style_bold'],
style=self.bottom['style'])
gr.setp_ticklabel(plotaxis='left', color=self.left['color'], rotation=90.0,
fontsize=fs*self.left['size'], fontweight=self.left['style_bold'],
style=self.left['style'])
gr.setp_ticklabel(plotaxis='right', color=self.right['color'], rotation=0.0,
fontsize=fs*self.right['size'], fontweight=self.right['style_bold'],
style=self.right['style'])
mplim.plot()
QApplication.restoreOverrideCursor()
if not p.plot:
plt.show()
return [], p
files_types = "Portable Document Format (PDF) (*.pdf);;Postscript (PS) (*.ps);;\
Encapsulated Postscript (EPS) (*.eps);;\
Portable Network Graphics (PNG) (*.png);;\
Joint Photographic Experts Group (JPG) (*.jpg);;\
Tagged Image File Format (TIFF) (*.tif);;\
Raw RGBA bitmap (*.raw);;\
Scalable Vector Graphics (SVG) (*.svg)"
filename = image.header['FILENAME']
if filename.lower().endswith(".fits"):
filename = filename[:-4] + "pdf"
plot_file = QFileDialog.getSaveFileName(self.parent, 'Save file', filename, files_types)
plt.savefig(str(plot_file))
return [], p