本文整理匯總了Python中qwt.qt.QtGui.QPainter.drawLine方法的典型用法代碼示例。如果您正苦於以下問題：Python QPainter.drawLine方法的具體用法？Python QPainter.drawLine怎麽用？Python QPainter.drawLine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類qwt.qt.QtGui.QPainter的用法示例。
在下文中一共展示了QPainter.drawLine方法的4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: legendIcon
# 需要導入模塊: from qwt.qt.QtGui import QPainter [as 別名]
# 或者: from qwt.qt.QtGui.QPainter import drawLine [as 別名]
def legendIcon(self, index, size):
"""
:param int index: Index of the legend entry (ignored as there is only one)
:param QSizeF size: Icon size
:return: Icon representing the marker on the legend
.. seealso::
:py:meth:`qwt.plot.QwtPlotItem.setLegendIconSize()`,
:py:meth:`qwt.plot.QwtPlotItem.legendData()`
"""
if size.isEmpty():
return QwtGraphic()
icon = QwtGraphic()
icon.setDefaultSize(size)
icon.setRenderHint(QwtGraphic.RenderPensUnscaled, True)
painter = QPainter(icon)
painter.setRenderHint(QPainter.Antialiasing,
self.testRenderHint(QwtPlotItem.RenderAntialiased))
if self.__data.style != QwtPlotMarker.NoLine:
painter.setPen(self.__data.pen)
if self.__data.style in (QwtPlotMarker.HLine, QwtPlotMarker.Cross):
y = .5*size.height()
painter.drawLine(0., y, size.width(), y)
if self.__data.style in (QwtPlotMarker.VLine, QwtPlotMarker.Cross):
x = .5*size.width()
painter.drawLine(x, 0., x, size.height())
if self.__data.symbol:
r = QRect(0, 0, size.width(), size.height())
self.__data.symbol.drawSymbol(painter, r)
return icon示例2: drawColorBar
# 需要導入模塊: from qwt.qt.QtGui import QPainter [as 別名]
# 或者: from qwt.qt.QtGui.QPainter import drawLine [as 別名]
def drawColorBar(self, painter, colorMap, interval, scaleMap,
orientation, rect):
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 = 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(), devRect.bottom())
else:
sMap = 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)示例3: drawColorBar
# 需要導入模塊: from qwt.qt.QtGui import QPainter [as 別名]
# 或者: from qwt.qt.QtGui.QPainter import drawLine [as 別名]
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)示例4: legendIcon
# 需要導入模塊: from qwt.qt.QtGui import QPainter [as 別名]
# 或者: from qwt.qt.QtGui.QPainter import drawLine [as 別名]
def legendIcon(self, index, size):
"""
:param int index: Index of the legend entry (ignored as there is only one)
:param QSizeF size: Icon size
:return: Icon representing the curve on the legend
.. seealso::
:py:meth:`qwt.plot.QwtPlotItem.setLegendIconSize()`,
:py:meth:`qwt.plot.QwtPlotItem.legendData()`
"""
if size.isEmpty():
return QwtGraphic()
graphic = QwtGraphic()
graphic.setDefaultSize(size)
graphic.setRenderHint(QwtGraphic.RenderPensUnscaled, True)
painter = QPainter(graphic)
painter.setRenderHint(QPainter.Antialiasing,
self.testRenderHint(QwtPlotItem.RenderAntialiased))
if self.__data.legendAttributes == 0 or\
(self.__data.legendAttributes & QwtPlotCurve.LegendShowBrush):
brush = self.__data.brush
if brush.style() == Qt.NoBrush and self.__data.legendAttributes == 0:
if self.style() != QwtPlotCurve.NoCurve:
brush = QBrush(self.pen().color())
elif self.__data.symbol and\
self.__data.symbol.style() != QwtSymbol.NoSymbol:
brush = QBrush(self.__data.symbol.pen().color())
if brush.style() != Qt.NoBrush:
r = QRectF(0, 0, size.width(), size.height())
painter.fillRect(r, brush)
if self.__data.legendAttributes & QwtPlotCurve.LegendShowLine:
if self.pen() != Qt.NoPen:
pn = self.pen()
# pn.setCapStyle(Qt.FlatCap)
painter.setPen(pn)
y = .5*size.height()
painter.drawLine(0., y, size.width(), y)
if self.__data.legendAttributes & QwtPlotCurve.LegendShowSymbol:
if self.__data.symbol:
r = QRectF(0, 0, size.width(), size.height())
self.__data.symbol.drawSymbol(painter, r)
return graphic