def buildCanvasMaps(self, plot, canvasRect): maps = [] for axisId in range(QwtPlot.axisCnt): map_ = QwtScaleMap() map_.setTransformation( plot.axisScaleEngine(axisId).transformation()) sd = plot.axisScaleDiv(axisId) map_.setScaleInterval(sd.lowerBound(), sd.upperBound()) if plot.axisEnabled(axisId): s = plot.axisWidget(axisId) scaleRect = plot.plotLayout().scaleRect(axisId) if axisId in (QwtPlot.xTop, QwtPlot.xBottom): from_ = scaleRect.left() + s.startBorderDist() to = scaleRect.right() - s.endBorderDist() else: from_ = scaleRect.bottom() - s.endBorderDist() to = scaleRect.top() + s.startBorderDist() else: margin = 0 if not plot.plotLayout().alignCanvasToScale(axisId): margin = plot.plotLayout().canvasMargin(axisId) if axisId in (QwtPlot.yLeft, QwtPlot.yRight): from_ = canvasRect.bottom() - margin to = canvasRect.top() + margin else: from_ = canvasRect.left() + margin to = canvasRect.right() - margin map_.setPaintInterval(from_, to) maps.append(map_) return maps
def __init__(self): self.spacing = 4 self.penWidth = 0 self.minExtent = 0.0 self.components = ( QwtAbstractScaleDraw.Backbone | QwtAbstractScaleDraw.Ticks | QwtAbstractScaleDraw.Labels ) self.tick_length = { QwtScaleDiv.MinorTick: 4.0, QwtScaleDiv.MediumTick: 6.0, QwtScaleDiv.MajorTick: 8.0, } self.tick_lighter_factor = { QwtScaleDiv.MinorTick: 100, QwtScaleDiv.MediumTick: 100, QwtScaleDiv.MajorTick: 100, } self.map = QwtScaleMap() self.scaleDiv = QwtScaleDiv() self.labelCache = {}
def drawColorBar(self, painter, colorMap, interval, scaleMap, orientation, rect): """ Draw a color bar into a rectangle :param QPainter painter: Painter :param qwt.color_map.QwtColorMap colorMap: Color map :param qwt.interval.QwtInterval interval: Value range :param qwt.scalemap.QwtScaleMap scaleMap: Scale map :param Qt.Orientation orientation: Orientation :param QRectF rect: Target rectangle """ colorTable = [] if colorMap.format() == QwtColorMap.Indexed: colorTable = colorMap.colorTable(interval) c = QColor() devRect = rect.toAlignedRect() pixmap = QPixmap(devRect.size()) pixmap.fill(Qt.transparent) pmPainter = QPainter(pixmap) pmPainter.translate(-devRect.x(), -devRect.y()) if orientation == Qt.Horizontal: sMap = QwtScaleMap(scaleMap) sMap.setPaintInterval(rect.left(), rect.right()) for x in range(devRect.left(), devRect.right() + 1): value = sMap.invTransform(x) if colorMap.format() == QwtColorMap.RGB: c.setRgba(colorMap.rgb(interval, value)) else: c = colorTable[colorMap.colorIndex(interval, value)] pmPainter.setPen(c) pmPainter.drawLine( QLineF(x, devRect.top(), x, devRect.bottom())) else: sMap = QwtScaleMap(scaleMap) sMap.setPaintInterval(rect.bottom(), rect.top()) for y in range(devRect.top(), devRect.bottom() + 1): value = sMap.invTransform(y) if colorMap.format() == QwtColorMap.RGB: c.setRgba(colorMap.rgb(interval, value)) else: c = colorTable[colorMap.colorIndex(interval, value)] pmPainter.setPen(c) pmPainter.drawLine( QLineF(devRect.left(), y, devRect.right(), y)) pmPainter.end() self.drawPixmap(painter, rect, pixmap)
def drawColorBar(self, painter, colorMap, interval, scaleMap, orientation, rect): """ Draw a color bar into a rectangle :param QPainter painter: Painter :param qwt.color_map.QwtColorMap colorMap: Color map :param qwt.interval.QwtInterval interval: Value range :param qwt.scalemap.QwtScaleMap scaleMap: Scale map :param Qt.Orientation orientation: Orientation :param QRectF rect: Target rectangle """ colorTable = [] if colorMap.format() == QwtColorMap.Indexed: colorTable = colorMap.colorTable(interval) c = QColor() devRect = rect.toAlignedRect() pixmap = QPixmap(devRect.size()) pixmap.fill(Qt.transparent) pmPainter = QPainter(pixmap) pmPainter.translate(-devRect.x(), -devRect.y()) if orientation == Qt.Horizontal: sMap = QwtScaleMap(scaleMap) sMap.setPaintInterval(rect.left(), rect.right()) for x in range(devRect.left(), devRect.right()+1): value = sMap.invTransform(x) if colorMap.format() == QwtColorMap.RGB: c.setRgba(colorMap.rgb(interval, value)) else: c = colorTable[colorMap.colorIndex(interval, value)] pmPainter.setPen(c) pmPainter.drawLine(x, devRect.top(), x, devRect.bottom()) else: sMap = QwtScaleMap(scaleMap) sMap.setPaintInterval(rect.bottom(), rect.top()) for y in range(devRect.top(), devRect.bottom()+1): value = sMap.invTransform(y) if colorMap.format() == QwtColorMap.RGB: c.setRgba(colorMap.rgb(interval, value)) else: c = colorTable[colorMap.colorIndex(interval, value)] pmPainter.setPen(c) pmPainter.drawLine(devRect.left(), y, devRect.right(), y) pmPainter.end() self.drawPixmap(painter, rect, pixmap)
def __init__(self): self.spacing = 4 self.penWidth = 0 self.minExtent = 0. self.components = QwtAbstractScaleDraw.Backbone|\ QwtAbstractScaleDraw.Ticks|\ QwtAbstractScaleDraw.Labels self.tickLength = [None] * 3 self.tickLength[QwtScaleDiv.MinorTick] = 4.0 self.tickLength[QwtScaleDiv.MediumTick] = 6.0 self.tickLength[QwtScaleDiv.MajorTick] = 8.0 self.map = QwtScaleMap() self.scaleDiv = QwtScaleDiv() self.labelCache = {}
def buildCanvasMaps(self, plot, canvasRect): """ Calculated the scale maps for rendering the canvas :param qwt.plot.QwtPlot plot: Plot widget :param QRectF canvasRect: Target rectangle :return: Calculated scale maps """ maps = [] for axisId in QwtPlot.validAxes: map_ = QwtScaleMap() map_.setTransformation( plot.axisScaleEngine(axisId).transformation()) sd = plot.axisScaleDiv(axisId) map_.setScaleInterval(sd.lowerBound(), sd.upperBound()) if plot.axisEnabled(axisId): s = plot.axisWidget(axisId) scaleRect = plot.plotLayout().scaleRect(axisId) if axisId in (QwtPlot.xTop, QwtPlot.xBottom): from_ = scaleRect.left() + s.startBorderDist() to = scaleRect.right() - s.endBorderDist() else: from_ = scaleRect.bottom() - s.endBorderDist() to = scaleRect.top() + s.startBorderDist() else: margin = 0 if not plot.plotLayout().alignCanvasToScale(axisId): margin = plot.plotLayout().canvasMargin(axisId) if axisId in (QwtPlot.yLeft, QwtPlot.yRight): from_ = canvasRect.bottom() - margin to = canvasRect.top() + margin else: from_ = canvasRect.left() + margin to = canvasRect.right() - margin map_.setPaintInterval(from_, to) maps.append(map_) return maps
def canvasMap(self, axisId): map_ = QwtScaleMap() if not self.__data.canvas: return map_ map_.setTransformation(self.axisScaleEngine(axisId).transformation()) sd = self.axisScaleDiv(axisId) map_.setScaleInterval(sd.lowerBound(), sd.upperBound()) if self.axisEnabled(axisId): s = self.axisWidget(axisId) if axisId in (self.yLeft, self.yRight): y = s.y() + s.startBorderDist() - self.__data.canvas.y() h = s.height() - s.startBorderDist() - s.endBorderDist() map_.setPaintInterval(y+h, y) else: x = s.x() + s.startBorderDist() - self.__data.canvas.x() w = s.width() - s.startBorderDist() - s.endBorderDist() map_.setPaintInterval(x, x+w) else: canvasRect = self.__data.canvas.contentsRect() if axisId in (self.yLeft, self.yRight): top = 0 if not self.plotLayout().alignCanvasToScale(self.xTop): top = self.plotLayout().canvasMargin(self.xTop) bottom = 0 if not self.plotLayout().alignCanvasToScale(self.xBottom): bottom = self.plotLayout().canvasMargin(self.xBottom) map_.setPaintInterval(canvasRect.bottom()-bottom, canvasRect.top()+top) else: left = 0 if not self.plotLayout().alignCanvasToScale(self.yLeft): left = self.plotLayout().canvasMargin(self.yLeft) right = 0 if not self.plotLayout().alignCanvasToScale(self.yRight): right = self.plotLayout().canvasMargin(self.yRight) map_.setPaintInterval(canvasRect.left()+left, canvasRect.right()-right) return map_