| 1 | import copy |
|---|
| 2 | import numpy |
|---|
| 3 | import pylab |
|---|
| 4 | import functools |
|---|
| 5 | |
|---|
| 6 | from PyQt4 import QtGui |
|---|
| 7 | from PyQt4 import QtCore |
|---|
| 8 | |
|---|
| 9 | DEFAULT_CMAP = pylab.cm.jet |
|---|
| 10 | from mpl_toolkits.mplot3d import Axes3D |
|---|
| 11 | |
|---|
| 12 | import sas.qtgui.PlotUtilities as PlotUtilities |
|---|
| 13 | from sas.qtgui.PlotterBase import PlotterBase |
|---|
| 14 | from sas.qtgui.ColorMap import ColorMap |
|---|
| 15 | from sas.sasgui.guiframe.dataFitting import Data2D |
|---|
| 16 | |
|---|
| 17 | # Minimum value of Z for which we will present data. |
|---|
| 18 | MIN_Z=-32 |
|---|
| 19 | |
|---|
| 20 | class Plotter2DWidget(PlotterBase): |
|---|
| 21 | """ |
|---|
| 22 | 2D Plot widget for use with a QDialog |
|---|
| 23 | """ |
|---|
| 24 | def __init__(self, parent=None, manager=None, quickplot=False, dimension=2): |
|---|
| 25 | self.dimension = dimension |
|---|
| 26 | super(Plotter2DWidget, self).__init__(parent, manager=manager, quickplot=quickplot) |
|---|
| 27 | |
|---|
| 28 | self.cmap = DEFAULT_CMAP.name |
|---|
| 29 | # Default scale |
|---|
| 30 | self.scale = 'log_{10}' |
|---|
| 31 | self.vmin = None |
|---|
| 32 | self.vmax = None |
|---|
| 33 | |
|---|
| 34 | @property |
|---|
| 35 | def data(self): |
|---|
| 36 | return self._data |
|---|
| 37 | |
|---|
| 38 | @data.setter |
|---|
| 39 | def data(self, data=None): |
|---|
| 40 | """ data setter """ |
|---|
| 41 | self._data = data |
|---|
| 42 | self.qx_data = data.qx_data |
|---|
| 43 | self.qy_data = data.qy_data |
|---|
| 44 | self.xmin = data.xmin |
|---|
| 45 | self.xmax = data.xmax |
|---|
| 46 | self.ymin = data.ymin |
|---|
| 47 | self.ymax = data.ymax |
|---|
| 48 | self.zmin = data.zmin |
|---|
| 49 | self.zmax = data.zmax |
|---|
| 50 | self.label = data.name |
|---|
| 51 | self.xLabel = "%s(%s)"%(data._xaxis, data._xunit) |
|---|
| 52 | self.yLabel = "%s(%s)"%(data._yaxis, data._yunit) |
|---|
| 53 | self.title(title=data.title) |
|---|
| 54 | |
|---|
| 55 | def plot(self, data=None, marker=None, linestyle=None): |
|---|
| 56 | """ |
|---|
| 57 | Plot 2D self._data |
|---|
| 58 | """ |
|---|
| 59 | # Assing data |
|---|
| 60 | if isinstance(data, Data2D): |
|---|
| 61 | self.data = data |
|---|
| 62 | |
|---|
| 63 | assert(self._data) |
|---|
| 64 | |
|---|
| 65 | # Toggle the scale |
|---|
| 66 | zmin_2D_temp, zmax_2D_temp = self.calculateDepth() |
|---|
| 67 | |
|---|
| 68 | # Prepare and show the plot |
|---|
| 69 | self.showPlot(data=self.data.data, |
|---|
| 70 | qx_data=self.qx_data, |
|---|
| 71 | qy_data=self.qy_data, |
|---|
| 72 | xmin=self.xmin, |
|---|
| 73 | xmax=self.xmax, |
|---|
| 74 | ymin=self.ymin, ymax=self.ymax, |
|---|
| 75 | cmap=self.cmap, zmin=zmin_2D_temp, |
|---|
| 76 | zmax=zmax_2D_temp) |
|---|
| 77 | |
|---|
| 78 | def calculateDepth(self): |
|---|
| 79 | """ |
|---|
| 80 | Re-calculate the plot depth parameters depending on the scale |
|---|
| 81 | """ |
|---|
| 82 | # Toggle the scale |
|---|
| 83 | zmin_temp = self.zmin |
|---|
| 84 | zmax_temp = self.zmax |
|---|
| 85 | # self.scale predefined in the baseclass |
|---|
| 86 | if self.scale == 'log_{10}': |
|---|
| 87 | if self.zmin is not None: |
|---|
| 88 | zmin_temp = numpy.power(10, self.zmin) |
|---|
| 89 | if self.zmax is not None: |
|---|
| 90 | zmax_temp = numpy.power(10, self.zmax) |
|---|
| 91 | else: |
|---|
| 92 | if self.zmin is not None: |
|---|
| 93 | # min log value: no log(negative) |
|---|
| 94 | zmin_temp = MIN_Z if self.zmin <= 0 else numpy.log10(self.zmin) |
|---|
| 95 | if self.zmax is not None: |
|---|
| 96 | zmax_temp = numpy.log10(self.zmax) |
|---|
| 97 | |
|---|
| 98 | return (zmin_temp, zmax_temp) |
|---|
| 99 | |
|---|
| 100 | |
|---|
| 101 | def createContextMenu(self): |
|---|
| 102 | """ |
|---|
| 103 | Define common context menu and associated actions for the MPL widget |
|---|
| 104 | """ |
|---|
| 105 | self.defaultContextMenu() |
|---|
| 106 | |
|---|
| 107 | self.contextMenu.addSeparator() |
|---|
| 108 | self.actionDataInfo = self.contextMenu.addAction("&DataInfo") |
|---|
| 109 | self.actionDataInfo.triggered.connect( |
|---|
| 110 | functools.partial(self.onDataInfo, self.data)) |
|---|
| 111 | |
|---|
| 112 | self.actionSavePointsAsFile = self.contextMenu.addAction("&Save Points as a File") |
|---|
| 113 | self.actionSavePointsAsFile.triggered.connect( |
|---|
| 114 | functools.partial(self.onSavePoints, self.data)) |
|---|
| 115 | self.contextMenu.addSeparator() |
|---|
| 116 | |
|---|
| 117 | self.actionCircularAverage = self.contextMenu.addAction("&Perform Circular Average") |
|---|
| 118 | self.actionCircularAverage.triggered.connect(self.onCircularAverage) |
|---|
| 119 | |
|---|
| 120 | self.actionSectorView = self.contextMenu.addAction("&Sector [Q View]") |
|---|
| 121 | self.actionSectorView.triggered.connect(self.onSectorView) |
|---|
| 122 | self.actionAnnulusView = self.contextMenu.addAction("&Annulus [Phi View]") |
|---|
| 123 | self.actionAnnulusView.triggered.connect(self.onAnnulusView) |
|---|
| 124 | self.actionBoxSum = self.contextMenu.addAction("&Box Sum") |
|---|
| 125 | self.actionBoxSum.triggered.connect(self.onBoxSum) |
|---|
| 126 | self.actionBoxAveragingX = self.contextMenu.addAction("&Box Averaging in Qx") |
|---|
| 127 | self.actionBoxAveragingX.triggered.connect(self.onBoxAveragingX) |
|---|
| 128 | self.actionBoxAveragingY = self.contextMenu.addAction("&Box Averaging in Qy") |
|---|
| 129 | self.actionBoxAveragingY.triggered.connect(self.onBoxAveragingY) |
|---|
| 130 | self.contextMenu.addSeparator() |
|---|
| 131 | self.actionEditGraphLabel = self.contextMenu.addAction("&Edit Graph Label") |
|---|
| 132 | self.actionEditGraphLabel.triggered.connect(self.onEditgraphLabel) |
|---|
| 133 | self.contextMenu.addSeparator() |
|---|
| 134 | self.actionColorMap = self.contextMenu.addAction("&2D Color Map") |
|---|
| 135 | self.actionColorMap.triggered.connect(self.onColorMap) |
|---|
| 136 | self.contextMenu.addSeparator() |
|---|
| 137 | self.actionChangeScale = self.contextMenu.addAction("Toggle Linear/Log Scale") |
|---|
| 138 | self.actionChangeScale.triggered.connect(self.onToggleScale) |
|---|
| 139 | |
|---|
| 140 | def createContextMenuQuick(self): |
|---|
| 141 | """ |
|---|
| 142 | Define context menu and associated actions for the quickplot MPL widget |
|---|
| 143 | """ |
|---|
| 144 | self.defaultContextMenu() |
|---|
| 145 | |
|---|
| 146 | if self.dimension == 2: |
|---|
| 147 | self.actionToggleGrid = self.contextMenu.addAction("Toggle Grid On/Off") |
|---|
| 148 | self.contextMenu.addSeparator() |
|---|
| 149 | self.actionChangeScale = self.contextMenu.addAction("Toggle Linear/Log Scale") |
|---|
| 150 | |
|---|
| 151 | # Define the callbacks |
|---|
| 152 | self.actionChangeScale.triggered.connect(self.onToggleScale) |
|---|
| 153 | if self.dimension == 2: |
|---|
| 154 | self.actionToggleGrid.triggered.connect(self.onGridToggle) |
|---|
| 155 | |
|---|
| 156 | def onToggleScale(self, event): |
|---|
| 157 | """ |
|---|
| 158 | Toggle axis and replot image |
|---|
| 159 | """ |
|---|
| 160 | # self.scale predefined in the baseclass |
|---|
| 161 | if self.scale == 'log_{10}': |
|---|
| 162 | self.scale = 'linear' |
|---|
| 163 | else: |
|---|
| 164 | self.scale = 'log_{10}' |
|---|
| 165 | |
|---|
| 166 | self.plot() |
|---|
| 167 | |
|---|
| 168 | def onCircularAverage(self): |
|---|
| 169 | """ |
|---|
| 170 | """ |
|---|
| 171 | pass |
|---|
| 172 | |
|---|
| 173 | def onSectorView(self): |
|---|
| 174 | """ |
|---|
| 175 | """ |
|---|
| 176 | pass |
|---|
| 177 | |
|---|
| 178 | def onAnnulusView(self): |
|---|
| 179 | """ |
|---|
| 180 | """ |
|---|
| 181 | pass |
|---|
| 182 | |
|---|
| 183 | def onBoxSum(self): |
|---|
| 184 | """ |
|---|
| 185 | """ |
|---|
| 186 | pass |
|---|
| 187 | |
|---|
| 188 | def onBoxAveragingX(self): |
|---|
| 189 | """ |
|---|
| 190 | """ |
|---|
| 191 | pass |
|---|
| 192 | |
|---|
| 193 | def onBoxAveragingY(self): |
|---|
| 194 | """ |
|---|
| 195 | """ |
|---|
| 196 | pass |
|---|
| 197 | |
|---|
| 198 | def onEditgraphLabel(self): |
|---|
| 199 | """ |
|---|
| 200 | """ |
|---|
| 201 | pass |
|---|
| 202 | |
|---|
| 203 | def onColorMap(self): |
|---|
| 204 | """ |
|---|
| 205 | Display the color map dialog and modify the plot's map accordingly |
|---|
| 206 | """ |
|---|
| 207 | color_map_dialog = ColorMap(self, cmap=self.cmap, |
|---|
| 208 | vmin=self.vmin, |
|---|
| 209 | vmax=self.vmax, |
|---|
| 210 | data=self.data) |
|---|
| 211 | |
|---|
| 212 | color_map_dialog.apply_signal.connect(self.onApplyMap) |
|---|
| 213 | |
|---|
| 214 | if color_map_dialog.exec_() == QtGui.QDialog.Accepted: |
|---|
| 215 | self.onApplyMap(color_map_dialog.norm(), color_map_dialog.cmap()) |
|---|
| 216 | |
|---|
| 217 | def onApplyMap(self, v_values, cmap): |
|---|
| 218 | """ |
|---|
| 219 | Update the chart color map based on data passed from the widget |
|---|
| 220 | """ |
|---|
| 221 | self.cmap = str(cmap) |
|---|
| 222 | self.vmin, self.vmax = v_values |
|---|
| 223 | # Redraw the chart with new cmap |
|---|
| 224 | self.plot() |
|---|
| 225 | |
|---|
| 226 | def showPlot(self, data, qx_data, qy_data, xmin, xmax, ymin, ymax, |
|---|
| 227 | zmin, zmax, color=0, symbol=0, markersize=0, |
|---|
| 228 | label='data2D', cmap=DEFAULT_CMAP): |
|---|
| 229 | """ |
|---|
| 230 | Render and show the current data |
|---|
| 231 | """ |
|---|
| 232 | self.qx_data = qx_data |
|---|
| 233 | self.qy_data = qy_data |
|---|
| 234 | self.xmin = xmin |
|---|
| 235 | self.xmax = xmax |
|---|
| 236 | self.ymin = ymin |
|---|
| 237 | self.ymax = ymax |
|---|
| 238 | self.zmin = zmin |
|---|
| 239 | self.zmax = zmax |
|---|
| 240 | # If we don't have any data, skip. |
|---|
| 241 | if data is None: |
|---|
| 242 | return |
|---|
| 243 | if data.ndim == 1: |
|---|
| 244 | output = PlotUtilities.build_matrix(data, self.qx_data, self.qy_data) |
|---|
| 245 | else: |
|---|
| 246 | output = copy.deepcopy(data) |
|---|
| 247 | |
|---|
| 248 | zmin_temp = self.zmin |
|---|
| 249 | # check scale |
|---|
| 250 | if self.scale == 'log_{10}': |
|---|
| 251 | try: |
|---|
| 252 | if self.zmin <= 0 and len(output[output > 0]) > 0: |
|---|
| 253 | zmin_temp = self.zmin |
|---|
| 254 | output[output > 0] = numpy.log10(output[output > 0]) |
|---|
| 255 | elif self.zmin <= 0: |
|---|
| 256 | zmin_temp = self.zmin |
|---|
| 257 | output[output > 0] = numpy.zeros(len(output)) |
|---|
| 258 | output[output <= 0] = MIN_Z |
|---|
| 259 | else: |
|---|
| 260 | zmin_temp = self.zmin |
|---|
| 261 | output[output > 0] = numpy.log10(output[output > 0]) |
|---|
| 262 | except: |
|---|
| 263 | #Too many problems in 2D plot with scale |
|---|
| 264 | output[output > 0] = numpy.log10(output[output > 0]) |
|---|
| 265 | pass |
|---|
| 266 | |
|---|
| 267 | self.cmap = cmap |
|---|
| 268 | if self.dimension != 3: |
|---|
| 269 | #Re-adjust colorbar |
|---|
| 270 | self.figure.subplots_adjust(left=0.2, right=.8, bottom=.2) |
|---|
| 271 | |
|---|
| 272 | zmax_temp = self.zmax |
|---|
| 273 | if self.vmin is not None: |
|---|
| 274 | zmin_temp = self.vmin |
|---|
| 275 | zmax_temp = self.vmax |
|---|
| 276 | |
|---|
| 277 | im = self.ax.imshow(output, interpolation='nearest', |
|---|
| 278 | origin='lower', |
|---|
| 279 | vmin=zmin_temp, vmax=zmax_temp, |
|---|
| 280 | cmap=self.cmap, |
|---|
| 281 | extent=(self.xmin, self.xmax, |
|---|
| 282 | self.ymin, self.ymax)) |
|---|
| 283 | |
|---|
| 284 | cbax = self.figure.add_axes([0.84, 0.2, 0.02, 0.7]) |
|---|
| 285 | |
|---|
| 286 | # Current labels for axes |
|---|
| 287 | self.ax.set_ylabel(self.y_label) |
|---|
| 288 | self.ax.set_xlabel(self.x_label) |
|---|
| 289 | |
|---|
| 290 | # Title only for regular charts |
|---|
| 291 | if not self.quickplot: |
|---|
| 292 | self.ax.set_title(label=self._title) |
|---|
| 293 | |
|---|
| 294 | if cbax is None: |
|---|
| 295 | ax.set_frame_on(False) |
|---|
| 296 | cb = self.figure.colorbar(im, shrink=0.8, aspect=20) |
|---|
| 297 | else: |
|---|
| 298 | cb = self.figure.colorbar(im, cax=cbax) |
|---|
| 299 | |
|---|
| 300 | cb.update_bruteforce(im) |
|---|
| 301 | cb.set_label('$' + self.scale + '$') |
|---|
| 302 | |
|---|
| 303 | self.vmin = cb.vmin |
|---|
| 304 | self.vmax = cb.vmax |
|---|
| 305 | |
|---|
| 306 | else: |
|---|
| 307 | # clear the previous 2D from memory |
|---|
| 308 | self.figure.clear() |
|---|
| 309 | |
|---|
| 310 | self.figure.subplots_adjust(left=0.1, right=.8, bottom=.1) |
|---|
| 311 | |
|---|
| 312 | X = self._data.x_bins[0:-1] |
|---|
| 313 | Y = self._data.y_bins[0:-1] |
|---|
| 314 | X, Y = numpy.meshgrid(X, Y) |
|---|
| 315 | |
|---|
| 316 | ax = Axes3D(self.figure) |
|---|
| 317 | |
|---|
| 318 | # Disable rotation for large sets. |
|---|
| 319 | # TODO: Define "large" for a dataset |
|---|
| 320 | SET_TOO_LARGE = 500 |
|---|
| 321 | if len(X) > SET_TOO_LARGE: |
|---|
| 322 | ax.disable_mouse_rotation() |
|---|
| 323 | |
|---|
| 324 | self.figure.canvas.resizing = False |
|---|
| 325 | im = ax.plot_surface(X, Y, output, rstride=1, cstride=1, cmap=cmap, |
|---|
| 326 | linewidth=0, antialiased=False) |
|---|
| 327 | self.ax.set_axis_off() |
|---|
| 328 | |
|---|
| 329 | if self.dimension != 3: |
|---|
| 330 | self.figure.canvas.draw_idle() |
|---|
| 331 | else: |
|---|
| 332 | self.figure.canvas.draw() |
|---|
| 333 | |
|---|
| 334 | class Plotter2D(QtGui.QDialog, Plotter2DWidget): |
|---|
| 335 | def __init__(self, parent=None, quickplot=False, dimension=2): |
|---|
| 336 | |
|---|
| 337 | QtGui.QDialog.__init__(self) |
|---|
| 338 | Plotter2DWidget.__init__(self, manager=parent, quickplot=quickplot, dimension=dimension) |
|---|
| 339 | icon = QtGui.QIcon() |
|---|
| 340 | icon.addPixmap(QtGui.QPixmap(":/res/ball.ico"), QtGui.QIcon.Normal, QtGui.QIcon.Off) |
|---|
| 341 | self.setWindowIcon(icon) |
|---|
