def plotSVG(self, width, height, output_file, _plotting_object = None): """Plots the data specified in the current input file as a page in a PDF file with the given width and height, writing the output to the specified output file. Returns the SVG object produced.""" printer = QPrinter() svg = QSvgGenerator() svg.setFileName(output_file) svg.setSize(QSize(width, height)) svg.setViewBox(QRect(0, 0, width, height)) svg.setResolution(printer.resolution()) return self._plot(width, height, svg, _plotting_object)[0]
def export_scene(canvas, width, height, dpi, exportFileName): """ This function exports the scene to a file. """ # need this to make sure we take away focus from # any currently selected legend items canvas.clearFocus() with HiddenStitchManager(canvas): # NOTE: We seem to need the 1px buffer region to avoid # the image being cut off margin = 10 theScene = visible_bounding_rect(canvas.items()) theScene.adjust(-margin, -margin, margin, margin) # check if user requested an svg file svg = True if QFileInfo(exportFileName).completeSuffix() == "svg" \ else False if svg: generator = QSvgGenerator() generator.setFileName(exportFileName) generator.setSize(QSize(width, height)) generator.setViewBox(QRect(0, 0, width, height)) generator.setTitle("sconcho generated SVG image") generator.setDescription("this svg image was exported from " "a sconcho project") generator.setResolution(dpi) else: generator = QImage(width+2*margin, height+2*margin, QImage.Format_ARGB32_Premultiplied) generator.fill(1) inchesToMeter = 39.3700787 generator.setDotsPerMeterX(dpi*inchesToMeter) generator.setDotsPerMeterY(dpi*inchesToMeter) painter = QPainter(generator) painter.setRenderHints(QPainter.SmoothPixmapTransform | QPainter.HighQualityAntialiasing | QPainter.TextAntialiasing ) painter.setBackgroundMode(Qt.TransparentMode ) canvas.render(painter, QRectF(), theScene ) painter.end() if not svg: generator.save(exportFileName)
def export_scene(canvas, width, height, dpi, exportFileName): """ This function exports the scene to a file. """ # need this to make sure we take away focus from # any currently selected legend items canvas.clearFocus() with HiddenStitchManager(canvas): # NOTE: We seem to need the 1px buffer region to avoid # the image being cut off margin = 10 theScene = visible_bounding_rect(canvas.items()) theScene.adjust(-margin, -margin, margin, margin) # check if user requested an svg file svg = True if QFileInfo(exportFileName).completeSuffix() == "svg" \ else False if svg: generator = QSvgGenerator() generator.setFileName(exportFileName) generator.setSize(QSize(width, height)) generator.setViewBox(QRect(0, 0, width, height)) generator.setTitle("sconcho generated SVG image") generator.setDescription("this svg image was exported from " "a sconcho project") generator.setResolution(dpi) else: generator = QImage(width + 2 * margin, height + 2 * margin, QImage.Format_ARGB32_Premultiplied) generator.fill(1) inchesToMeter = 39.3700787 generator.setDotsPerMeterX(dpi * inchesToMeter) generator.setDotsPerMeterY(dpi * inchesToMeter) painter = QPainter(generator) painter.setRenderHints(QPainter.SmoothPixmapTransform | QPainter.HighQualityAntialiasing | QPainter.TextAntialiasing) painter.setBackgroundMode(Qt.TransparentMode) canvas.render(painter, QRectF(), theScene) painter.end() if not svg: generator.save(exportFileName)
def _get_composer_svg_image(self, width, height, dpi): # from qgscomposer.cpp, QgsComposer::on_mActionExportAsSVG_triggered, # line 1909, near end of function svgpath = getTempfilePath('svg') temp_size = os.path.getsize(svgpath) svg_g = QSvgGenerator() # noinspection PyArgumentList svg_g.setTitle(QgsProject.instance().title()) svg_g.setFileName(svgpath) # width and height in pixels # svg_w = int(self._c.paperWidth() * self._c.printResolution() / 25.4) # svg_h = int(self._c.paperHeight() * self._c.printResolution() / 25.4) svg_w = width svg_h = height svg_g.setSize(QSize(svg_w, svg_h)) svg_g.setViewBox(QRect(0, 0, svg_w, svg_h)) # because the rendering is done in mm, convert the dpi # svg_g.setResolution(self._c.printResolution()) svg_g.setResolution(dpi) sp = QPainter(svg_g) self._c.renderPage(sp, 0) sp.end() if temp_size == os.path.getsize(svgpath): # something went pear-shaped return False, '' image = QImage(width, height, QImage.Format_ARGB32) image.fill(QColor(152, 219, 249).rgb()) image.setDotsPerMeterX(dpi / 25.4 * 1000) image.setDotsPerMeterY(dpi / 25.4 * 1000) svgr = QSvgRenderer(svgpath) p = QPainter(image) svgr.render(p) p.end() filepath = getTempfilePath('png') res = image.save(filepath, 'png') if not res: os.unlink(filepath) filepath = '' # TODO: remove .svg file as well? return res, filepath
def _get_composer_svg_image(self, width, height, dpi): # from qgscomposer.cpp, QgsComposer::on_mActionExportAsSVG_triggered, # near end of function svgpath = getTempfilePath('svg') temp_size = os.path.getsize(svgpath) svg_g = QSvgGenerator() # noinspection PyArgumentList svg_g.setTitle(QgsProject.instance().title()) svg_g.setFileName(svgpath) svg_g.setSize(QSize(width, height)) svg_g.setViewBox(QRect(0, 0, width, height)) svg_g.setResolution(dpi) sp = QPainter(svg_g) self._c.renderPage(sp, 0) sp.end() if temp_size == os.path.getsize(svgpath): return False, '' image = QImage(width, height, self._TestMapSettings.outputImageFormat()) image.fill(QColor(152, 219, 249).rgb()) image.setDotsPerMeterX(dpi / 25.4 * 1000) image.setDotsPerMeterY(dpi / 25.4 * 1000) svgr = QSvgRenderer(svgpath) p = QPainter(image) p.setRenderHint( QPainter.Antialiasing, self._TestMapSettings.testFlag(QgsMapSettings.Antialiasing)) p.setRenderHint(QPainter.TextAntialiasing) svgr.render(p) p.end() filepath = getTempfilePath('png') res = image.save(filepath, 'png') if not res: os.unlink(filepath) filepath = '' # TODO: remove .svg file as well? return res, filepath
def _get_composer_svg_image(self, width, height, dpi): # from qgscomposer.cpp, QgsComposer::on_mActionExportAsSVG_triggered, # near end of function svgpath = getTempfilePath('svg') temp_size = os.path.getsize(svgpath) svg_g = QSvgGenerator() # noinspection PyArgumentList svg_g.setTitle(QgsProject.instance().title()) svg_g.setFileName(svgpath) svg_g.setSize(QSize(width, height)) svg_g.setViewBox(QRect(0, 0, width, height)) svg_g.setResolution(dpi) sp = QPainter(svg_g) self._c.renderPage(sp, 0) sp.end() if temp_size == os.path.getsize(svgpath): return False, '' image = QImage(width, height, self._TestMapSettings.outputImageFormat()) image.fill(QColor(152, 219, 249).rgb()) image.setDotsPerMeterX(dpi / 25.4 * 1000) image.setDotsPerMeterY(dpi / 25.4 * 1000) svgr = QSvgRenderer(svgpath) p = QPainter(image) p.setRenderHint( QPainter.Antialiasing, self._TestMapSettings.testFlag(QgsMapSettings.Antialiasing) ) p.setRenderHint(QPainter.TextAntialiasing) svgr.render(p) p.end() filepath = getTempfilePath('png') res = image.save(filepath, 'png') if not res: os.unlink(filepath) filepath = '' # TODO: remove .svg file as well? return res, filepath