| 1 | #-------------------------------------------------------------------------------
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| 2 | # Name: Skymap
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| 3 | # Purpose:
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| 4 | #
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| 5 | # Author: Kelvin
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| 6 | #
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| 7 | # Created: 02/01/2014
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| 8 | #-------------------------------------------------------------------------------
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| 9 |
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| 10 | import matplotlib.pyplot as plt
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| 11 | import matplotlib.cm as cm
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| 12 |
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| 13 | from matplotlib.figure import Figure
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| 14 | from matplotlib.backends.backend_qt4agg import FigureCanvasQTAgg as FigureCanvas
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| 15 |
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| 16 | from numpy import *
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| 17 |
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| 18 | from PyQt4 import QtGui, QtCore
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| 19 |
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| 20 | """Skymap Class Definition"""
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| 21 | # This defines the figure canvas of the skymap.
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| 22 | class Skymap(FigureCanvas):
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| 23 |
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| 24 | graphSignal = QtCore.pyqtSignal()
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| 25 |
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| 26 | def __init__(self, Results, maskImage, finalImage, momentMaps = None):
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| 27 |
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| 28 | self.Results = Results
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| 29 |
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| 30 | # Create the figure containing our final image
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| 31 | self.fig = Figure()
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| 32 |
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| 33 | # Initialise the parent class
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| 34 | FigureCanvas.__init__(self, self.fig)
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| 35 |
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| 36 | self.ax = self.fig.add_subplot(111)
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| 37 |
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| 38 | QtGui.QToolTip.setFont(QtGui.QFont('SansSerif', 10))
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| 39 |
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| 40 | self.maskImage = maskImage
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| 41 | self.finalImage = finalImage
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| 42 |
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| 43 | if momentMaps != None:
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| 44 |
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| 45 | self.momentMaps = momentMaps
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| 46 |
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| 47 | [self.lenY, self.lenX] = finalImage.shape
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| 48 |
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| 49 | self.highlightedObj = 0
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| 50 | self.outlinedObj = 0
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| 51 |
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| 52 | self.colorChoice = 0
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| 53 |
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| 54 | self.colorfulChoices = [cm.gray, cm.spectral, cm.copper, cm.hot, cm.jet]
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| 55 |
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| 56 | self.totalChoices = len(self.colorfulChoices)
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| 57 |
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| 58 | self.color = self.colorfulChoices[self.colorChoice]
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| 59 |
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| 60 | self.globalpeakflux = max(finalImage.flatten())
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| 61 | self.peakflux = self.globalpeakflux
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| 62 |
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| 63 | self.draw()
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| 64 | self.show()
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| 65 |
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| 66 | def drawImage(self):
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| 67 |
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| 68 | self.ax.cla()
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| 69 | self.ax.imshow(self.finalImage, cmap = self.color, interpolation = 'nearest')
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| 70 | self.ax.set_ylim(0, self.lenY)
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| 71 |
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| 72 | self.ax.set_xlabel('X Pixel')
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| 73 | self.ax.set_ylabel('Y Pixel')
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| 74 |
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| 75 | self.draw()
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| 76 |
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| 77 | def enableInteractivity(self):
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| 78 |
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| 79 | self.highlightLink = self.mpl_connect('button_press_event', self.tryHightlight)
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| 80 | self.outlineLink = self.mpl_connect('motion_notify_event', self.tryOutline)
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| 81 | self.outlineAllLink = self.mpl_connect('button_press_event', self.tryOutlineAll)
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| 82 | self.changeColorLink = self.mpl_connect('scroll_event', self.changeColor)
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| 83 |
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| 84 | def disableInteractivity(self):
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| 85 |
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| 86 | self.mpl_disconnect(self.highlightLink)
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| 87 | self.mpl_disconnect(self.outlineLink)
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| 88 | self.mpl_disconnect(self.outlineAllLink)
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| 89 | self.mpl_disconnect(self.changeColorLink)
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| 90 |
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| 91 | def changeColor(self, event):
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| 92 |
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| 93 | self.colorChoice = (self.colorChoice + int(event.step)) % self.totalChoices
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| 94 |
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| 95 | self.color = self.colorfulChoices[self.colorChoice]
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| 96 |
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| 97 | self.ax.imshow(self.finalImage, cmap = self.color, vmax = self.peakflux, interpolation = 'nearest')
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| 98 | self.draw()
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| 99 |
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| 100 | def tryHightlight(self, event):
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| 101 |
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| 102 | if event.button != 1:
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| 103 | return
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| 104 |
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| 105 | # If there is a valid (x,y) coordinate, meaning that the cursor is in the figure, then get it. Otherwise do nothing.
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| 106 | try:
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| 107 | (x, y) = (int(event.xdata), int(event.ydata))
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| 108 | except Exception:
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| 109 | return
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| 110 |
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| 111 | # If there is nothing to highlight, do nothing.
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| 112 | if self.maskImage[y][x] == 0:
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| 113 | self.clearHighlight()
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| 114 | return
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| 115 |
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| 116 | # Otherwise, if there is something to highlight, then:
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| 117 | else:
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| 118 |
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| 119 | # Determine which object it is
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| 120 | ObjID = int(self.maskImage[y][x])
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| 121 |
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| 122 | # If it is already highlighted, do nothing.
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| 123 | if ObjID == self.highlightedObj:
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| 124 | return
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| 125 |
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| 126 | # Otherwise, it's not highlighted yet, we will highlight this Object instead.
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| 127 | else:
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| 128 | self.clearHighlight()
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| 129 | self.highlightObject(ObjID)
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| 130 | self.graphSignal.emit()
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| 131 | print("Clicked at at (x, y) = (" + str(x) + "," + str(y) + ")")
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| 132 | print("Object ID: " + str(self.highlightedObj))
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| 133 |
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| 134 | # Remember to clear the image first before highlighting a new object!
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| 135 | def highlightObject(self, ObjID):
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| 136 |
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| 137 | if ObjID <= 0:
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| 138 | return
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| 139 |
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| 140 | highlightMask = zeros([self.lenY, self.lenX])
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| 141 | highlightMask[self.maskImage == ObjID] = 1
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| 142 |
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| 143 | self.currentContourfill = self.ax.contourf(highlightMask, [0.5, 1], colors = 'white')
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| 144 | self.highlightedObj = ObjID
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| 145 |
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| 146 | self.ax.set_ylim(0, self.lenY)
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| 147 |
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| 148 | self.ax.set_xlabel('X Pixel')
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| 149 | self.ax.set_ylabel('Y Pixel')
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| 150 | self.draw()
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| 151 |
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| 152 | def clearHighlight(self):
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| 153 |
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| 154 | self.clearImage()
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| 155 |
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| 156 | if self.outlinedObj == -1:
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| 157 | self.outlineAll()
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| 158 | else:
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| 159 | self.outlineObject(self.outlinedObj)
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| 160 |
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| 161 | self.highlightedObj = 0
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| 162 |
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| 163 | def tryOutline(self, event):
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| 164 |
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| 165 | # If there is a valid (x,y) coordinate, meaning that the cursor is in the figure, then get it. Otherwise do nothing.
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| 166 | try:
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| 167 | (x, y) = (int(event.xdata), int(event.ydata))
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| 168 | except Exception:
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| 169 |
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| 170 | if self.outlinedObj > 0:
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| 171 | self.clearOutline()
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| 172 | return
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| 173 |
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| 174 | try:
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| 175 | # If there is nothing to outline, do nothing.
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| 176 | if self.maskImage[y][x] == 0:
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| 177 |
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| 178 | if self.outlinedObj > 0:
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| 179 | self.clearOutline()
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| 180 | return
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| 181 |
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| 182 | # Otherwise, if there is something to outline, then:
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| 183 | else:
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| 184 |
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| 185 | # Determine which object it is
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| 186 | ObjID = int(self.maskImage[y][x])
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| 187 |
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| 188 | # If it is already outlined, do nothing.
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| 189 | if ObjID == self.outlinedObj or self.outlinedObj == -1:
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| 190 | return
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| 191 |
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| 192 | # Otherwise, it's not outlined yet, we will outline this Object instead.
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| 193 | else:
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| 194 | self.clearOutline()
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| 195 | self.outlineObject(ObjID)
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| 196 |
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| 197 | except IndexError:
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| 198 | pass
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| 199 |
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| 200 | # Remember to clear the image first before highlighting a new object!
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| 201 | def outlineObject(self, ObjID):
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| 202 |
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| 203 | if ObjID <= 0:
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| 204 | return
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| 205 |
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| 206 | outlineMask = zeros([self.lenY, self.lenX])
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| 207 | outlineMask[self.maskImage == ObjID] = 1
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| 208 |
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| 209 | self.setToolTip('Object Source ' + str(ObjID))
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| 210 |
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| 211 | contour = self.ax.contour(outlineMask, [0.5], linewidths = 2, colors = 'green')
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| 212 | self.outlinedObj = ObjID
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| 213 |
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| 214 | self.ax.set_xlabel('X Pixel')
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| 215 | self.ax.set_ylabel('Y Pixel')
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| 216 | self.ax.set_ylim(0, self.lenY)
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| 217 | self.draw()
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| 218 |
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| 219 | def clearOutline(self):
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| 220 |
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| 221 | self.clearImage()
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| 222 | self.highlightObject(self.highlightedObj)
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| 223 |
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| 224 | self.outlinedObj = 0
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| 225 |
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| 226 | def tryOutlineAll(self, event):
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| 227 |
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| 228 | # If the button is not the right key, remember to connect the outline link in case it was disconnected.
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| 229 | if event.button != 3:
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| 230 | self.outlineLink = self.mpl_connect('motion_notify_event', self.tryOutline)
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| 231 | return
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| 232 |
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| 233 | # If it has not all outlined, disconnect the outline link and outline everything.
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| 234 | if self.outlinedObj != -1:
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| 235 | self.mpl_disconnect(self.outlineLink)
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| 236 | self.outlineAll()
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| 237 |
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| 238 | # If it has all been outlined, reconnect the outline link.
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| 239 | else:
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| 240 | self.outlineLink = self.mpl_connect('motion_notify_event', self.tryOutline)
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| 241 | self.clearOutline()
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| 242 |
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| 243 | def outlineAll(self):
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| 244 |
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| 245 | outlineMask = zeros([self.lenY, self.lenX])
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| 246 | outlineMask[self.maskImage > 0] = 1
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| 247 |
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| 248 | if self.Results.totalDetections > 0:
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| 249 | self.setToolTip('Object Sources 1 to ' + str(self.Results.totalDetections))
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| 250 | else:
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| 251 | self.setToolTip('No Objects')
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| 252 |
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| 253 | contour = self.ax.contour(outlineMask, [0.5], linewidths = 2, colors = 'green')
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| 254 | self.outlinedObj = -1
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| 255 |
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| 256 | self.ax.set_ylim(0, self.lenY)
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| 257 | self.draw()
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| 258 |
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| 259 | def clearImage(self):
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| 260 | self.ax.cla()
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| 261 | self.ax.imshow(self.finalImage, cmap = self.color, interpolation = 'nearest')
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| 262 | self.ax.set_xlabel('X Pixel')
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| 263 | self.ax.set_ylabel('Y Pixel')
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| 264 | self.ax.set_ylim(0, self.lenY)
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| 265 | self.draw()
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| 266 |
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| 267 |
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| 268 | #class MomentMap(Skymap):
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| 269 |
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| 270 | # def __init__(self, momentMaps):
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| 271 |
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| 272 | # # Create the figure containing our final image
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| 273 | # self.fig = Figure()
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| 274 |
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| 275 | # # Initialise the parent class
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| 276 | # FigureCanvas.__init__(self, self.fig)
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| 277 |
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| 278 | # self.ax = self.fig.add_subplot(111)
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| 279 |
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| 280 | # QtGui.QToolTip.setFont(QtGui.QFont('SansSerif', 10))
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| 281 |
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| 282 | # self.maskImage = maskImage
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| 283 | # self.finalImage = finalImage
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| 284 |
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| 285 | # [self.lenY, self.lenX] = finalImage.shape
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| 286 |
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| 287 | # self.highlightedObj = 0
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| 288 | # self.outlinedObj = 0
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| 289 |
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| 290 | # self.colorChoice = 0
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| 291 |
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| 292 | # self.colorfulChoices = [cm.gray, cm.spectral, cm.copper, cm.hot, cm.jet]
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| 293 |
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| 294 | # self.totalChoices = len(self.colorfulChoices)
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| 295 |
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| 296 | # self.color = self.colorfulChoices[self.colorChoice]
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| 297 |
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| 298 | # self.draw()
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| 299 | # self.show()
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| 300 |
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| 301 |
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| 302 | class MomentMap(Skymap):
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| 303 |
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| 304 | def __init__(self, Results, maskImage, finalImage, momentMaps):
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| 305 |
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| 306 | Skymap.__init__(self, Results, maskImage, finalImage, momentMaps)
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| 307 |
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| 308 | self.currentObjID = 0
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| 309 |
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| 310 | self.changeColorLink = self.mpl_connect('scroll_event', self.changeColor)
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| 311 |
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| 312 | self.zoomOutLink = self.mpl_connect('button_press_event', self.zoomOut)
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| 313 | self.zoomInLink = self.mpl_connect('button_press_event', self.zoomIn)
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| 314 | self.scaleColorLink = self.mpl_connect('button_press_event', self.scaleColor)
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| 315 |
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| 316 | #self.zoomStatus = 'in'
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| 317 |
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| 318 | self.momentTitle = self.fig.suptitle("Moment Map")
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| 319 |
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| 320 | self.ax.set_xlabel('X Pixel')
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| 321 | self.ax.set_ylabel('Y Pixel')
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| 322 |
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| 323 | self.sourcepeakflux = self.globalpeakflux
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| 324 |
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| 325 | def scaleColor(self, event):
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| 326 |
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| 327 | if event.button != 2:
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| 328 | return
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| 329 |
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| 330 | if self.peakflux == self.globalpeakflux:
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| 331 | self.peakflux = self.sourcepeakflux
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| 332 | self.setToolTip('Flux scale calibrated to source %d'%self.currentObjID)
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| 333 |
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| 334 | elif self.peakflux == self.sourcepeakflux:
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| 335 | self.peakflux = self.globalpeakflux
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| 336 | self.setToolTip('Flux scale calibrated to all sources within the same velocity range')
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| 337 |
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| 338 | self.drawImage()
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| 339 |
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| 340 | def zoomOut(self, event):
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| 341 |
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| 342 | if event.button != 3:
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| 343 | return
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| 344 |
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| 345 | self.xmin = 0
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| 346 | self.xmax = self.lenX
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| 347 | self.ymin = 0
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| 348 | self.ymax = self.lenY
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| 349 | self.drawImage()
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| 350 |
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| 351 | #self.enableInteractivity()
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| 352 |
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| 353 | def zoomIn(self, event):
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| 354 |
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| 355 | if event.button != 1:
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| 356 | return
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| 357 |
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| 358 | #self.disableInteractivity()
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| 359 | #self.changeColorLink = self.mpl_connect('scroll_event', self.changeColor)
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| 360 | self.setCurrentObjID(self.currentObjID)
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| 361 | self.drawImage()
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| 362 |
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| 363 | def setCurrentObjID(self, ObjID):
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| 364 |
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| 365 | self.currentObjID = ObjID
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| 366 | self.finalImage = self.momentMaps[ObjID]
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| 367 |
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| 368 | if self.currentObjID > 0:
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| 369 |
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| 370 | ObjStats = self.Results.SkyObjects[self.currentObjID].stats
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| 371 |
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| 372 | x1 = ObjStats['X1']
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| 373 | x2 = ObjStats['X2']
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| 374 | y1 = ObjStats['Y1']
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| 375 | y2 = ObjStats['Y2']
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| 376 |
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| 377 | xspace = 5
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| 378 | yspace = 5
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| 379 |
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| 380 | self.xmin = max(0, x1 - xspace)
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| 381 | self.xmax = min(x2 + xspace, self.lenX)
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| 382 | self.ymin = max(0, y1 - yspace)
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| 383 | self.ymax = min(y2 + yspace, self.lenY)
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| 384 |
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| 385 | self.xpeak = ObjStats['X_peak']
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| 386 | self.ypeak = ObjStats['Y_peak']
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| 387 |
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| 388 | self.sourcepeakflux = self.finalImage[self.ypeak, self.xpeak]
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| 389 |
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| 390 | self.peakflux = self.sourcepeakflux
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| 391 | self.setToolTip('Flux scale calibrated to source %d'%self.currentObjID)
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| 392 |
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| 393 | def drawImage(self):
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| 394 |
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| 395 | if self.currentObjID <= 0:
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| 396 | return
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| 397 |
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| 398 | self.ax.cla()
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| 399 | self.momentTitle.set_text("Moment Map of Source " + str(self.currentObjID))
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| 400 | self.ax.imshow(self.finalImage, cmap = self.color, vmax = self.peakflux, interpolation = 'nearest')
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| 401 | self.ax.set_ylim(self.ymin, self.ymax)
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| 402 | self.ax.set_xlim(self.xmin, self.xmax)
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| 403 |
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| 404 | self.ax.set_xlabel('X Pixel')
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| 405 | self.ax.set_ylabel('Y Pixel')
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| 406 | self.draw() |
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