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Python PlotWidget.getGraphXLimits方法代碼示例

本文整理匯總了Python中silx.gui.plot.PlotWidget.getGraphXLimits方法的典型用法代碼示例。如果您正苦於以下問題:Python PlotWidget.getGraphXLimits方法的具體用法?Python PlotWidget.getGraphXLimits怎麽用?Python PlotWidget.getGraphXLimits使用的例子?那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在silx.gui.plot.PlotWidget的用法示例。


在下文中一共展示了PlotWidget.getGraphXLimits方法的1個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的Python代碼示例。

示例1: RGBCorrelatorGraph

# 需要導入模塊: from silx.gui.plot import PlotWidget [as 別名]
# 或者: from silx.gui.plot.PlotWidget import getGraphXLimits [as 別名]

#.........這裏部分代碼省略.........
        try:
            outputFile = os.path.basename(outstr)
        except:
            outputFile = outstr
        outputDir  = os.path.dirname(outstr)
        self.saveDirectory = outputDir
        PyMcaDirs.outputDir = outputDir

        #always overwrite for the time being
        if len(outputFile) < len(extension[1:]):
            outputFile += extension[1:]
        elif outputFile[-4:] != extension[1:]:
            outputFile += extension[1:]
        outputFile = os.path.join(outputDir, outputFile)
        if os.path.exists(outputFile):
            try:
                os.remove(outputFile)
            except:
                qt.QMessageBox.critical(self, "Save Error",
                                        "Cannot overwrite existing file")
                return

        if filetype.upper() == "IMAGE":
            self.saveGraphImage(outputFile, original=True)
        elif filetype.upper() == "ZOOMEDIMAGE":
            self.saveGraphImage(outputFile, original=False)
        else:
            self.saveGraphWidget(outputFile)

    def saveGraphImage(self, filename, original=False):
        format_ = filename[-3:].upper()
        activeImage = self.graph.getActiveImage()
        rgbdata = activeImage.getRgbaImageData()
        # silx to pymca scale convention (a + b x)
        xScale = activeImage.getOrigin()[0], activeImage.getScale()[0]
        yScale = activeImage.getOrigin()[1], activeImage.getScale()[1]
        if original:
            # save whole image
            bgradata = numpy.array(rgbdata, copy=True)
            bgradata[:, :, 0] = rgbdata[:, :, 2]
            bgradata[:, :, 2] = rgbdata[:, :, 0]
        else:
            shape = rgbdata.shape[:2]
            xmin, xmax = self.graph.getGraphXLimits()
            ymin, ymax = self.graph.getGraphYLimits()
            # save zoomed image, for that we have to get the limits
            r0, c0 = convertToRowAndColumn(xmin, ymin, shape, xScale=xScale, yScale=yScale, safe=True)
            r1, c1 = convertToRowAndColumn(xmax, ymax, shape, xScale=xScale, yScale=yScale, safe=True)
            row0 = int(min(r0, r1))
            row1 = int(max(r0, r1))
            col0 = int(min(c0, c1))
            col1 = int(max(c0, c1))
            if row1 < shape[0]:
                row1 += 1
            if col1 < shape[1]:
                col1 += 1
            tmpArray = rgbdata[row0:row1, col0:col1, :]
            bgradata = numpy.array(tmpArray, copy=True, dtype=rgbdata.dtype)
            bgradata[:, :, 0] = tmpArray[:, :, 2]
            bgradata[:, :, 2] = tmpArray[:, :, 0]
        if self.graph.isYAxisInverted():
            qImage = qt.QImage(bgradata, bgradata.shape[1], bgradata.shape[0],
                               qt.QImage.Format_ARGB32)
        else:
            qImage = qt.QImage(bgradata, bgradata.shape[1], bgradata.shape[0],
                               qt.QImage.Format_ARGB32).mirrored(False, True)
        pixmap = qt.QPixmap.fromImage(qImage)
        if pixmap.save(filename, format_):
            return
        else:
            qt.QMessageBox.critical(self, "Save Error",
                                    "%s" % sys.exc_info()[1])
            return
    
    def saveGraphWidget(self, filename):
        format_ = filename[-3:].upper()
        if hasattr(qt.QPixmap, "grabWidget"):
            # Qt4
            pixmap = qt.QPixmap.grabWidget(self.graph.getWidgetHandle())
        else:
            # Qt5
            pixmap = self.graph.getWidgetHandle().grab()
        if pixmap.save(filename, format_):
            return
        else:
            qt.QMessageBox.critical(self, "Save Error", "%s" % sys.exc_info()[1])
            return

    def setSaveDirectory(self, wdir):
        if os.path.exists(wdir):
            self.saveDirectory = wdir
            return True
        else:
            return False

    def selectColormap(self):
        qt.QMessageBox.information(self, "Open", "Not implemented (yet)")

    def _zoomBack(self, pos):
        self.graph.getLimitsHistory().pop()
開發者ID:maurov,項目名稱:pymca,代碼行數:104,代碼來源:SilxRGBCorrelatorGraph.py


注:本文中的silx.gui.plot.PlotWidget.getGraphXLimits方法示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台,相關代碼片段篩選自各路編程大神貢獻的開源項目,源碼版權歸原作者所有,傳播和使用請參考對應項目的License;未經允許,請勿轉載。