def drawLines(self, qp):
pen = QPen(Qt.black, 2, Qt.SolidLine)
qp.setPen(pen)
# SolidLine
qp.drawLine(20, 40, 250, 40)
pen.setStyle(Qt.DashLine)
qp.setPen(pen)
# DashLine
qp.drawLine(20, 80, 250, 80)
pen.setStyle(Qt.DashDotLine)
qp.setPen(pen)
# DashDotLine
qp.drawLine(20, 120, 250, 120)
pen.setStyle(Qt.DotLine)
qp.setPen(pen)
# DotLine
qp.drawLine(20, 160, 250, 160)
pen.setStyle(Qt.DashDotDotLine)
qp.setPen(pen)
# DashDotDotLine
qp.drawLine(20, 200, 250, 200)
pen.setStyle(Qt.CustomDashLine)
# Our pattern is 1px dash, 4px space, 5px dash, 4px space etc.
pen.setDashPattern([1, 4, 5, 4])
qp.setPen(pen)
# CustomDashLine
qp.drawLine(20, 240, 250, 240)
def drawhoverframe(self, painter):
self.__grid = [[((161 + r * UNIT) / WIDTH * self.width,
(111 + c * UNIT) / HEIGHT * self.height)
for r in range(16)] for c in range(16)]
pen = QPen(Qt.red, 2, Qt.DashLine)
pos_x, pos_y = self.point2index()
if 0 <= pos_x and pos_x < 15 and 0 <= pos_y and pos_y < 15 and not self.__pieces[
pos_x][pos_y]:
pen.setDashPattern(
[UNIT * self.width / WIDTH / 8, UNIT * self.width / WIDTH / 4])
painter.setPen(pen)
painter.drawLine(self.__grid[pos_x][pos_y][0],
self.__grid[pos_x][pos_y][1],
self.__grid[pos_x + 1][pos_y][0],
self.__grid[pos_x + 1][pos_y][1])
painter.drawLine(self.__grid[pos_x][pos_y + 1][0],
self.__grid[pos_x][pos_y + 1][1],
self.__grid[pos_x + 1][pos_y + 1][0],
self.__grid[pos_x + 1][pos_y + 1][1])
pen.setDashPattern([
UNIT * self.height / HEIGHT / 8,
UNIT * self.height / HEIGHT / 4
])
painter.setPen(pen)
painter.drawLine(self.__grid[pos_x + 1][pos_y][0],
self.__grid[pos_x + 1][pos_y][1],
self.__grid[pos_x + 1][pos_y + 1][0],
self.__grid[pos_x + 1][pos_y + 1][1])
painter.drawLine(self.__grid[pos_x][pos_y][0],
self.__grid[pos_x][pos_y][1],
self.__grid[pos_x][pos_y + 1][0],
self.__grid[pos_x][pos_y + 1][1])
def drawGrid(self, painter, rect, gridColor):
tileWidth = self.map().tileWidth()
tileHeight = self.map().tileHeight()
if (tileWidth <= 0 or tileHeight <= 0):
return
startX = max(0, int(rect.x() / tileWidth) * tileWidth)
startY = max(0, int(rect.y() / tileHeight) * tileHeight)
endX = min(math.ceil(rect.right()), self.map().width() * tileWidth + 1)
endY = min(math.ceil(rect.bottom()),
self.map().height() * tileHeight + 1)
gridColor.setAlpha(128)
gridPen = QPen(gridColor)
gridPen.setCosmetic(True)
_x = QVector()
_x.append(2)
_x.append(2)
gridPen.setDashPattern(_x)
if (startY < endY):
gridPen.setDashOffset(startY)
painter.setPen(gridPen)
for x in range(startX, endX, tileWidth):
painter.drawLine(x, startY, x, endY - 1)
if (startX < endX):
gridPen.setDashOffset(startX)
painter.setPen(gridPen)
for y in range(startY, endY, tileHeight):
painter.drawLine(startX, y, endX - 1, y)
def drawLines(self, qp):
# 新建一个`QPen`对象，设置颜色黑色，宽2像素，这样就能看出来各个笔样式的区别。`Qt.SolidLine`是预定义样式的一种。
pen = QPen(Qt.black, 2, Qt.SolidLine)
qp.setPen(pen)
# 绘制直线，前两个参数为左端点的坐标，后两个参数为右端点的坐标
qp.drawLine(50, 100, 280, 100)
pen.setStyle(Qt.DashLine)
qp.setPen(pen)
qp.drawLine(50, 140, 280, 140)
pen.setStyle(Qt.DashDotLine)
qp.setPen(pen)
qp.drawLine(50, 180, 280, 180)
pen.setStyle(Qt.DotLine)
qp.setPen(pen)
qp.drawLine(50, 220, 280, 220)
pen.setStyle(Qt.DashDotDotLine)
qp.setPen(pen)
qp.drawLine(50, 260, 280, 260)
# 这里我们自定义了一个笔的样式。定义为`Qt.CustomDashLine`然后调用`setDashPattern()`方法。
# 数字列表是线的样式，要求必须是个数为奇数，奇数位定义的是空格，偶数位为线长，数字越大，空格或线长越大
# 比如本例的就是1像素线，4像素空格，5像素线，4像素空格。
pen.setStyle(Qt.CustomDashLine)
pen.setDashPattern([1, 4, 5, 4])
qp.setPen(pen)
qp.drawLine(50, 300, 280, 300)
def drawLines(self, qp):
# 新建一个QPen对象，设置颜色黑色，宽2像素，这样就能看出来各个笔样式的区别。
pen = QPen(Qt.black, 2, Qt.SolidLine)
qp.setPen(pen)
qp.drawLine(20, 40, 250, 40)
# 使用预设的画笔样式
pen.setStyle(Qt.DashLine)
qp.setPen(pen)
qp.drawLine(20, 80, 250, 80)
pen.setStyle(Qt.DashDotLine)
qp.setPen(pen)
qp.drawLine(20, 120, 250, 80)
pen.setStyle(Qt.DotLine)
qp.setPen(pen)
qp.drawLine(20, 160, 250, 80)
pen.setStyle(Qt.DashDotDotLine)
qp.setPen(pen)
qp.drawLine(20, 200, 250, 80)
# 自定义了一个笔的样式
# 数字列表是线的样式，要求必须是个数为奇数，奇数位定义的是空格，偶数位为线长，数字越大，空格或线长越大，比如本例的就是1像素线，4像素空格，5像素线，4像素空格
pen.setStyle(Qt.CustomDashLine)
pen.setDashPattern([1, 4, 5, 4])
qp.setPen(pen)
qp.drawLine(20, 240, 250, 80)
def draw(self, painter, draw=True):
if self.color is None:
return
if draw:
painter.save()
pen = QPen(QColor(self.color))
if self.stroke is not None:
pen.setWidthF(self.stroke)
if self.line_style is not None:
if self.line_style in [Qt.SolidLine, Qt.DashLine, Qt.DashDotLine, Qt.DotLine, Qt.DashDotDotLine]:
pen.setStyle(self.line_style)
elif isinstance(self.line_style, list):
pen.setStyle(Qt.CustomDashLine)
pen.setDashPattern(self.line_style)
painter.setPen(pen)
painter.setOpacity(self.opacity)
polyline_to_draw = self.translated(0, 0)
if self.scale is not None and self.scale != 1:
polyline_to_draw = self.__scaled()
# print('mid rect_to_plot', rect_to_plot)
if self.translation is not None:
# rect_to_plot.setX(rect_to_plot.x()+self.translation.x())
# rect_to_plot.setY(rect_to_plot.y()+self.translation.y())
polyline_to_draw.translate(self.translation.x(), self.translation.y())
# painter.drawPolygon(polygon_to_draw)
if self.theta is not None and self.theta != 0:
painter.translate(polyline_to_draw.boundingRect().center())
painter.rotate(self.theta)
painter.translate(-polyline_to_draw.boundingRect().center())
painter.drawPolyline(polyline_to_draw)
painter.restore()
def drawForeground(self, painter, rect):
if self._tiling is None:
return
if self._showTileOutlines:
tile_nos = self._tiling.intersected(rect)
for tileId in tile_nos:
## draw tile outlines
# Dashed black line
pen = QPen()
pen.setWidth(0)
pen.setDashPattern([5, 5])
painter.setPen(pen)
painter.drawRect(self._tiling.imageRects[tileId])
# Dashed white line
# (offset to occupy the spaces in the dashed black line)
pen = QPen()
pen.setWidth(0)
pen.setDashPattern([5, 5])
pen.setDashOffset(5)
pen.setColor(QColor(Qt.white))
painter.setPen(pen)
painter.drawRect(self._tiling.imageRects[tileId])
def drawGrid(self, painter, rect, gridColor):
tileWidth = self.map().tileWidth()
tileHeight = self.map().tileHeight()
if (tileWidth <= 0 or tileHeight <= 0):
return
startX = max(0, int(rect.x() / tileWidth) * tileWidth)
startY = max(0, int(rect.y() / tileHeight) * tileHeight)
endX = min(math.ceil(rect.right()), self.map().width() * tileWidth + 1)
endY = min(math.ceil(rect.bottom()), self.map().height() * tileHeight + 1)
gridColor.setAlpha(128)
gridPen = QPen(gridColor)
gridPen.setCosmetic(True)
_x = QVector()
_x.append(2)
_x.append(2)
gridPen.setDashPattern(_x)
if (startY < endY):
gridPen.setDashOffset(startY)
painter.setPen(gridPen)
for x in range(startX, endX, tileWidth):
painter.drawLine(x, startY, x, endY - 1)
if (startX < endX):
gridPen.setDashOffset(startX)
painter.setPen(gridPen)
for y in range(startY, endY, tileHeight):
painter.drawLine(startX, y, endX - 1, y)
def draw_line(self, qp):
qp.setPen(QPen(Qt.black, 3, Qt.SolidLine))
qp.drawLine(20, 20, 380, 20)
qp.drawText(30, 40, 'Qt.SolidLine')
qp.setPen(QPen(Qt.black, 3, Qt.DashLine))
qp.drawLine(20, 70, 380, 70)
qp.drawText(30, 90, 'Qt.DashLine')
qp.setPen(QPen(Qt.black, 3, Qt.DotLine))
qp.drawLine(20, 120, 380, 120)
qp.drawText(30, 140, 'Qt.DotLine')
qp.setPen(QPen(Qt.black, 3, Qt.DashDotLine))
qp.drawLine(20, 170, 380, 170)
qp.drawText(30, 190, 'Qt.DashDotLine')
qp.setPen(QPen(Qt.black, 3, Qt.DashDotDotLine))
qp.drawLine(20, 220, 380, 220)
qp.drawText(30, 240, 'Qt.DashDotDotLine')
pen = QPen(Qt.black, 3, Qt.CustomDashLine)
pen.setDashPattern([4, 3, 2, 5])
qp.setPen(pen)
qp.drawLine(20, 270, 380, 270)
qp.drawText(30, 290, 'Qt.CustomDashLine')
def paintEvent(self, event):
painter = QPainter()
painter.begin(self)
pen = QPen(Qt.blue, Qt.SolidLine)
painter.setPen(pen)
painter.drawLine(20, 40, 250, 40)
pen.setStyle(Qt.DashDotDotLine)
painter.setPen(pen)
painter.drawLine(20, 80, 250, 80)
pen.setStyle(Qt.DashLine)
painter.setPen(pen)
painter.drawLine(20, 100, 250, 100)
pen.setStyle(Qt.DotLine)
painter.setPen(pen)
painter.drawLine(20, 120, 250, 120)
pen.setStyle(Qt.CustomDashLine)
pen.setDashPattern([1, 10, 5, 8])
painter.setPen(pen)
painter.drawLine(20, 140, 250, 140)
painter.end()
def paintEvent(self, event):
painter = QPainter(self)
drawColor = Qt.gray if not self.file_over else Qt.blue
pen = QPen()
pen.setDashPattern([4, 2])
pen.setWidth(3)
pen.setColor(drawColor)
painter.setPen(pen)
painter.setRenderHint(QPainter.Antialiasing)
# Rounded dashed rect
painter.translate(self.width() / 2 - 60, self.height() / 2 - 60)
painter.drawRoundedRect(0, 0, 120, 120, 25.0, 25.0)
# Arrow
painter.translate(22, 30)
arrow = QPainterPath()
arrow.moveTo(20, 40)
arrow.lineTo(30, 40)
arrow.lineTo(30, 1)
arrow.lineTo(50, 1)
arrow.lineTo(50, 40)
arrow.lineTo(60, 40)
arrow.lineTo(40, 60)
arrow.closeSubpath()
painter.setPen(Qt.NoPen)
painter.setBrush(drawColor)
painter.drawPath(arrow)
def drawLines(self, qp):
pen = QPen(Qt.black, 2, Qt.SolidLine)
qp.setPen(pen)
qp.drawLine(20, 40, 250, 40)
pen.setStyle(Qt.DashLine)
qp.setPen(pen)
qp.drawLine(20, 80, 250, 80)
pen.setStyle(Qt.DashDotLine)
qp.setPen(pen)
qp.drawLine(20, 120, 250, 120)
pen.setStyle(Qt.DotLine)
qp.setPen(pen)
qp.drawLine(20, 160, 250, 160)
pen.setStyle(Qt.DashDotDotLine)
qp.setPen(pen)
qp.drawLine(20, 200, 250, 200)
pen.setStyle(Qt.CustomDashLine)
pen.setDashPattern([1, 4, 5, 4])
qp.setPen(pen)
qp.drawLine(20, 240, 250, 240)
def drawLinesOnVideo(self, pt):
''' Draw Lines on Video '''
scr_x, scr_y = self.GetInverseMatrix(pt[1], pt[0])
radius = 3
center = QPoint(scr_x, scr_y)
pen = QPen(Qt.yellow)
pen.setWidth(radius)
pen.setCapStyle(Qt.RoundCap)
pen.setDashPattern([1, 4, 5, 4])
painter_p = QPainter(self)
painter_p.setPen(pen)
painter_p.setRenderHint(QPainter.HighQualityAntialiasing, True)
painter_p.drawPoint(center)
if len(self.drawLines) > 1:
try:
idx = self.drawLines.index(pt)
scr_x, scr_y = self.GetInverseMatrix(
self.drawLines[idx + 1][1], self.drawLines[idx + 1][0])
end = QPoint(scr_x, scr_y)
painter_p.drawLine(center, end)
except:
None
return
def draw_line(self, qp): # 电梯绳
pen = QPen(Qt.black, 0.5, Qt.SolidLine)
pen.setStyle(Qt.CustomDashLine)
pen.setDashPattern([4, 20])
qp.setPen(pen)
for i in range(5):
qp.drawLine(100 + i * self.LENGTH, 0, 100 + i * self.LENGTH, 660)
def drawGrid(self, painter, rect, gridColor):
tileWidth = self.map().tileWidth()
tileHeight = self.map().tileHeight()
r = rect.toAlignedRect()
r.adjust(-tileWidth / 2, -tileHeight / 2, tileWidth / 2, tileHeight / 2)
startX = int(max(0.0, self.screenToTileCoords_(r.topLeft()).x()))
startY = int(max(0.0, self.screenToTileCoords_(r.topRight()).y()))
endX = int(min(self.map().width(), self.screenToTileCoords_(r.bottomRight()).x()))
endY = int(min(self.map().height(), self.screenToTileCoords_(r.bottomLeft()).y()))
gridColor.setAlpha(128)
gridPen = QPen(gridColor)
gridPen.setCosmetic(True)
_x = QVector()
_x.append(2)
_x.append(2)
gridPen.setDashPattern(_x)
painter.setPen(gridPen)
for y in range(startY, endY+1):
start = self.tileToScreenCoords(startX, y)
end = self.tileToScreenCoords(endX, y)
painter.drawLine(start, end)
for x in range(startX, endX+1):
start = self.tileToScreenCoords(x, startY)
end = self.tileToScreenCoords(x, endY)
painter.drawLine(start, end)
def drawGrid(self, painter, rect, gridColor):
tileWidth = self.map().tileWidth()
tileHeight = self.map().tileHeight()
r = rect.toAlignedRect()
r.adjust(-tileWidth / 2, -tileHeight / 2, tileWidth / 2,
tileHeight / 2)
startX = int(max(0.0, self.screenToTileCoords_(r.topLeft()).x()))
startY = int(max(0.0, self.screenToTileCoords_(r.topRight()).y()))
endX = int(
min(self.map().width(),
self.screenToTileCoords_(r.bottomRight()).x()))
endY = int(
min(self.map().height(),
self.screenToTileCoords_(r.bottomLeft()).y()))
gridColor.setAlpha(128)
gridPen = QPen(gridColor)
gridPen.setCosmetic(True)
_x = QVector()
_x.append(2)
_x.append(2)
gridPen.setDashPattern(_x)
painter.setPen(gridPen)
for y in range(startY, endY + 1):
start = self.tileToScreenCoords(startX, y)
end = self.tileToScreenCoords(endX, y)
painter.drawLine(start, end)
for x in range(startX, endX + 1):
start = self.tileToScreenCoords(x, startY)
end = self.tileToScreenCoords(x, endY)
painter.drawLine(start, end)
def drawLines(self, qp):
#画笔，颜色、线宽、线型
pen = QPen(Qt.black, 2, Qt.SolidLine)
qp.setPen(pen) #设置画笔
qp.drawLine(20, 40, 250, 40) #绘制直线
pen.setStyle(Qt.DashLine) #更改线型
qp.setPen(pen)
qp.drawLine(20, 80, 250, 80)
pen.setStyle(Qt.DashDotLine)
qp.setPen(pen)
qp.drawLine(20, 120, 250, 120)
pen.setStyle(Qt.DotLine)
qp.setPen(pen)
qp.drawLine(20, 160, 250, 160)
pen.setStyle(Qt.DashDotDotLine)
qp.setPen(pen)
qp.drawLine(20, 200, 250, 200)
pen.setStyle(Qt.CustomDashLine)
pen.setDashPattern([1, 4, 5, 4])
qp.setPen(pen)
qp.drawLine(20, 240, 250, 240)
def paintEvent(self, QPaintEvent):
painter = QPainter()
painter.begin(self)
# 初始化画笔
pen1 = QPen(Qt.red, 5, Qt.SolidLine) # 红色, 粗细=5，直线
pen2 = QPen(Qt.blue, 6, Qt.DashLine) # 蓝色, 粗细=6，虚线
pen3 = QPen(Qt.yellow, 7, Qt.DashDotDotLine) # 黄色, 粗细=7，点点虚线
pen4 = QPen(Qt.black, 8, Qt.DashDotLine) # 黑色, 粗细=8，点虚线
pen6 = QPen(Qt.cyan, 10, Qt.DotLine) # 青色, 粗细=9，虚线
painter.setPen(pen1) # 设置画线使用的画笔
painter.drawLine(20, 40, 400, 40) # 前两个参数是直线在窗口的起点坐标，后两个参数是直线在窗口的终点坐标
painter.setPen(pen2) # 设置画线使用的画笔
painter.drawLine(20, 60, 400, 60) # 前两个参数是直线在窗口的起点坐标，后两个参数是直线在窗口的终点坐标
painter.setPen(pen3) # 设置画线使用的画笔
painter.drawLine(20, 80, 400, 80) # 前两个参数是直线在窗口的起点坐标，后两个参数是直线在窗口的终点坐标
painter.setPen(pen4) # 设置画线使用的画笔
painter.drawLine(20, 100, 400, 100) # 前两个参数是直线在窗口的起点坐标，后两个参数是直线在窗口的终点坐标
painter.setPen(pen6) # 设置画线使用的画笔
painter.drawLine(20, 140, 400, 140) # 前两个参数是直线在窗口的起点坐标，后两个参数是直线在窗口的终点坐标
# 可以通过setStyle来修改画笔的属性
pen6.setStyle(Qt.CustomDashLine) # 修改画笔的属性
pen6.setDashPattern([1, 4, 10, 3]) # 自定义的线：线和空白按照数组给定的数据来走的 只能有四位
painter.setPen(pen6) # 设置画线使用的画笔
painter.drawLine(20, 120, 400, 120) # 前两个参数是直线在窗口的起点坐标，后两个参数是直线在窗口的终点坐标
painter.end()
def paintEvent(self, eventPaintQEvent):
g = self.geometry()
self.bl = QPoint(0, g.height() - 1)
self.br = QPoint(g.width() - 1, g.height() - 1)
self.tl = QPoint(0, 0)
self.tr = QPoint(g.width() - 1, 0)
self.wedgePt = self.calc_wedgePt()
myQP = QPainter(self)
pen = QPen()
pen.setWidth(3)
pen.setColor(Qt.lightGray)
pen.setDashPattern([5, 5])
myQP.setPen(pen)
myQP.drawLine(self.wedgePt, self.tr)
myQP.drawLine(self.tr, self.br)
pen.setColor(Qt.black)
pen.setDashPattern([1, 0])
myQP.setPen(pen)
myQP.drawLine(self.bl, self.br)
myQP.drawLine(self.bl, self.tl)
myQP.drawLine(self.tl, self.wedgePt)
myQP.drawLine(self.wedgePt, self.br)
def update_chart(self, update_axis=True, update_lines=True):
pixmap = QPixmap(self.legend.size())
pixmap.fill(QColor(0, 0, 0, 0))
qp = QPainter()
qp.begin(pixmap)
y_spacing = 30
legend_pen = QPen()
qp.setPen(legend_pen)
for i in range(len(self.page['lines'])):
line = self.page['lines'][i]
qp.setPen(legend_pen)
qp.drawText(QRect(10, 12 + i * y_spacing, 120, 20), Qt.AlignLeft,
line.name)
line_pen = QPen()
line_pen.setWidth(4)
line_pen.setColor(line.line_colour)
line_pen.setStyle(line.line_style)
if line.line_pattern and line.line_style is Qt.CustomDashLine:
line_pen.setDashPattern(line.line_pattern)
qp.setPen(line_pen)
qp.drawLine(140, 10 + i * y_spacing + 10, 190,
10 + i * y_spacing + 10)
qp.end()
self.legend.setPixmap(pixmap)
if self.page['lines'] and self.datasets:
self.chart.paint_lines(self.page['lines'], update_lines,
update_axis)
def drawLine(self, paint):
pen = QPen(Qt.blue, 4, Qt.SolidLine)
paint.setPen(pen)
paint.drawLine(100, 40, 400, 40)
pen.setStyle(Qt.DashLine)
pen.setColor(Qt.yellow)
paint.setPen(pen)
paint.drawLine(100, 80, 400, 80)
pen.setStyle(Qt.DashDotLine)
pen.setColor(Qt.red)
paint.setPen(pen)
paint.drawLine(100, 120, 400, 120)
pen.setStyle(Qt.DashDotDotLine)
pen.setColor(Qt.darkMagenta)
paint.setPen(pen)
paint.drawLine(100, 160, 400, 160)
pen.setStyle(Qt.DotLine)
pen.setColor(Qt.darkGreen)
pen.setWidth(2)
paint.setPen(pen)
paint.drawLine(100, 200, 400, 200)
pen.setStyle(Qt.CustomDashLine) # 내가 직접 제작하는 라인
pen.setDashPattern([4, 4, 6, 4]) # Dash, 공간, Dash, 공간
pen.setColor(Qt.darkGray)
pen.setWidth(8)
paint.setPen(pen)
paint.drawLine(100, 240, 400, 240)
def drawLines(self, painter):
"""自定义绘制参数"""
pen = QPen(Qt.black, 2, Qt.SolidLine)
painter.setPen(pen)
painter.drawLine(20, 40, 250, 40)
pen.setStyle(Qt.DashLine)
painter.setPen(pen)
painter.drawLine(20, 80, 250, 80)
pen.setStyle(Qt.DashDotLine)
painter.setPen(pen)
painter.drawLine(20, 120, 250, 120)
pen.setStyle(Qt.DotLine)
painter.setPen(pen)
painter.drawLine(20, 160, 250, 160)
pen.setStyle(Qt.DashDotDotLine)
painter.setPen(pen)
painter.drawLine(20, 200, 250, 200)
pen.setStyle(Qt.CustomDashLine)
# 线 + 空格 + 线 + 空格 ： 单位像素
pen.setDashPattern([1, 4, 5, 4])
painter.setPen(pen)
painter.drawLine(20, 240, 250, 240)
def drawLines(self, qp):
# QPen(画笔)，此处画了6条线段，其中前5条为预定义样式，最后一条为自定义样式
pen = QPen(Qt.black, 2, Qt.SolidLine)
qp.setPen(pen)
qp.drawLine(20, 40, 250, 40)
pen.setStyle(Qt.DashLine)
qp.setPen(pen)
qp.drawLine(20, 80, 250, 80)
pen.setStyle(Qt.DashDotLine)
qp.setPen(pen)
qp.drawLine(20, 120, 250, 120)
pen.setStyle(Qt.DotLine)
qp.setPen(pen)
qp.drawLine(20, 160, 250, 160)
pen.setStyle(Qt.DashDotDotLine)
qp.setPen(pen)
qp.drawLine(20, 200, 250, 200)
pen.setStyle(Qt.CustomDashLine)
# 该方法，它的参数(一个数字列表)定义了一种风格，必须有偶数个数字；
# 其中奇数表示绘制实线，偶数表示留空。数值越大，直线或空白就越大。
# 这里我们定义了1像素的实线，4像素的空白，5像素实线，4像素空白
pen.setDashPattern([1, 4, 5, 4])
qp.setPen(pen)
qp.drawLine(20, 240, 250, 240)
def drawPath(self, paths):
pen = QPen(QColor('#000000'))
pen.setStyle(Qt.DashLine)
pen.setDashPattern([10, 4])
self.painter.setPen(pen)
gs = controller.gridSize
for path in paths:
for i in range(len(path) - 1):
a = path[i]
b = path[i + 1]
vx, vy = b[0] - a[0], b[1] - a[1]
d = math.sqrt(vx * vx + vy * vy)
# Chuyển về vector đơn vị
vx = vx / d
vy = vy / d
# Xoay 90 độ
vx, vy = -vy, vx
vx = vx * 2 + gs / 2
vy = vy * 2 + gs / 2
self.qpDrawLine(a[0] * gs + vx, a[1] * gs + vy, b[0] * gs + vx,
b[1] * gs + vy)
self.painter.setPen(Qt.SolidLine)
def drawLines(self, qp):
# 新建一个QPen对象，设置颜色黑色，宽2像素，Qt.SolidLine是预定义样式的一种
pen = QPen(Qt.black, 2, Qt.SolidLine)
qp.setPen(pen)
qp.drawLine(20, 40, 250, 40)
pen.setStyle(Qt.DashLine)
qp.setPen(pen)
qp.drawLine(20, 80, 250, 80)
pen.setStyle(Qt.DashDotLine)
qp.setPen(pen)
qp.drawLine(20, 120, 250, 120)
pen.setStyle(Qt.DotLine)
qp.setPen(pen)
qp.drawLine(20, 160, 250, 160)
pen.setStyle(Qt.DashDotDotLine)
qp.setPen(pen)
qp.drawLine(20, 200, 250, 200)
# 自定义了一个笔的样式。
# 定义为Qt.CustomDashLine然后调用setDashPattern()方法
# 数字列表是线的样式，要求必须是个数为奇数，奇数位定义的是空格，偶数位为线长，
# 数字越大，空格或线长越大，比如本例的就是1像素线，4像素空格，5像素线，4像素空格。
pen.setStyle(Qt.CustomDashLine)
pen.setDashPattern([1, 4, 5, 4])
qp.setPen(pen)
qp.drawLine(20, 240, 250, 240)
def draw_lines(self, qp):
pen = QPen(Qt.black, 2, Qt.SolidLine) # 钢笔样式 2px 黑色
qp.setPen(pen)
qp.drawLine(20, 40, 250, 40)
# 以下是五种风格的钢笔
pen.setStyle(Qt.DashLine) # 虚线
qp.setPen(pen)
qp.drawLine(20, 80, 250, 80)
pen.setStyle(Qt.DashDotLine) # 虚+点线
qp.setPen(pen)
qp.drawLine(20, 120, 250, 120)
pen.setStyle(Qt.DotLine) # 点线
qp.setPen(pen)
qp.drawLine(20, 160, 250, 160)
pen.setStyle(Qt.DashDotDotLine) # 虚+点+点线
qp.setPen(pen)
qp.drawLine(20, 200, 250, 200)
pen.setStyle(Qt.CustomDashLine) # 自定义了一个形状
# 第一个数 1 表示 1px 实点的宽度，第二个数 4 表示 4px 的空白
# 第三个数 5 表示 5px 实点的宽度，第四个数 4 表示 4px 的空白
# 我们可以增加或减少列表里的数字
pen.setDashPattern([1, 4, 5, 4])
qp.setPen(pen)
qp.drawLine(20, 240, 250, 240)
def paintEvent(self, QPaintEvent):
painter = QPainter()
painter.begin(self)
pen = QPen(Qt.red, 3, Qt.SolidLine)
painter.setPen(pen)
# 两端点的坐标(x1,y1) (x2,y2)
painter.drawLine(20, 40, 250, 40)
pen.setStyle(Qt.DashDotLine)
painter.setPen(pen)
painter.drawLine(20, 80, 250, 80)
pen.setStyle(Qt.DashDotDotLine)
painter.setPen(pen)
painter.drawLine(20, 120, 250, 120)
pen.setStyle(Qt.DashLine)
painter.setPen(pen)
painter.drawLine(20, 160, 250, 160)
#自定义
pen.setStyle(Qt.CustomDashLine)
#相对宽度
pen.setDashPattern([1, 10, 5, 8])
painter.setPen(pen)
painter.drawLine(20, 200, 250, 200)
painter.end()
def drawLines(self, qp):
pen = QPen(Qt.black, 2, Qt.SolidLine) # создание объекта, цвет - черный, жирность - 2px,
# Qt.SolidLine – это один из стилей (жирная линия)
qp.setPen(pen) # создание объекта, и установка параметров ручки
qp.drawLine(20, 40, 250, 40) # рисование линии
pen.setStyle(Qt.DashLine) # стиль пунктир
qp.setPen(pen)
qp.drawLine(20, 80, 250, 80)
pen.setStyle(Qt.DashDotLine) # стиль пунктир точка
qp.setPen(pen)
qp.drawLine(20, 120, 250, 120)
pen.setStyle(Qt.DotLine) # стиль пунктир мелкий
qp.setPen(pen)
qp.drawLine(20, 160, 250, 160)
pen.setStyle(Qt.DashDotDotLine) # стиль пунктир точка точка
qp.setPen(pen)
qp.drawLine(20, 200, 250, 200)
# определяем пользовательский стиль ручки.
# Мы устанавливаем стиль ручки Qt.CustomDashLine и вызываем метод setDashPattern().
# Список чисел определяет стиль. Может быть даже несколько чисел.
# Нечётные числа определяют сплошную линию, чётные числа – промежутки.
# Чем больше число, тем больше промежуток или штрих.
# Наш образец – штрих в 1 пиксель, промежуток в 4 пикселя, штрих в 5 пикселей, промежуток в 4 пикселя
pen.setStyle(Qt.CustomDashLine)
pen.setDashPattern([1, 4, 5, 4])
qp.setPen(pen)
qp.drawLine(20, 240, 250, 240)
def drawLines(self, qp):
pen = QPen(Qt.black, 2, Qt.SolidLine)
qp.setPen(pen)
qp.drawLine(20, 40, 250, 40)
pen.setStyle(Qt.DashLine)
qp.setPen(pen)
qp.drawLine(20, 80, 250, 80)
pen.setStyle(Qt.DashDotLine)
qp.setPen(pen)
qp.drawLine(20, 120, 250, 120)
pen.setStyle(Qt.DotLine)
qp.setPen(pen)
qp.drawLine(20, 160, 250, 160)
pen.setStyle(Qt.DashDotDotLine)
qp.setPen(pen)
qp.drawLine(20, 200, 250, 200)
pen.setStyle(Qt.CustomDashLine)
pen.setDashPattern([1, 4, 5, 4])
qp.setPen(pen)
qp.drawLine(20, 240, 250, 240)
def drawLines(self, qp):
pen = QPen(Qt.gray, 3, Qt.SolidLine)
qp.setPen(pen)
qp.drawLine(20, 300, 400, 0)
pen.setStyle(Qt.DashLine)
qp.setPen(pen)
qp.drawLine(20, 320, 400, 0)
pen.setStyle(Qt.DashDotLine)
qp.setPen(pen)
qp.drawLine(20, 340, 400, 0)
pen.setStyle(Qt.DotLine)
qp.setPen(pen)
qp.drawLine(20, 360, 400, 40)
pen.setStyle(Qt.DashDotDotLine)
qp.setPen(pen)
qp.drawLine(20, 380, 400, 40)
pen.setStyle(Qt.CustomDashLine)
pen.setDashPattern([1, 4, 5, 4])
qp.setPen(pen)
qp.drawLine(20, 400, 400, 40)
def penDraw(self, painter):
# 设置钢笔
pen = QPen(Qt.red, 2, Qt.SolidLine)
painter.setPen(pen)
painter.drawLine(10, 10, 300, 100)
pen.setStyle(Qt.CustomDashLine)
pen.setDashPattern([1, 4, 54])
# 当改变钢笔的塑性时要setPen
painter.setPen(pen)
painter.drawLine(30, 30, 40, 30)
def format_axis(axis, min_value, max_value, step):
for s in axis.categoriesLabels():
axis.remove(s)
axis.setStartValue(min_value)
for i in range(ceil(min_value / step),
floor(max_value / step) + 1):
v = i * step
axis.append('%s' % v, v)
axis.setRange(min_value, max_value)
grid_pen = QPen(QColor('silver'))
grid_pen.setDashPattern([1, 1, 1, 1, 0, 0, 0, 0])
#grid_pen.setDashPattern([1, 1, 0, 0])
axis.setGridLinePen(grid_pen)
def update_pixmap(self, size, convert_to_gui_point):
print('updating pixmap')
pixmap = QPixmap(size)
pixmap.fill(QColor(255, 255, 255, 0))
qp = QPainter()
qp.begin(pixmap)
if self.display_line or self.display_points:
x_data, y_data = self.get_data()
line_points = np.dstack(convert_to_gui_point([np.array(x_data), np.array(y_data)]))[0]
if self.sort_by_x:
line_points = line_points[line_points[:,0].argsort()]
qpoints = [QPoint(e[0], e[1]) for e in line_points]
if self.display_line and len(line_points) > 0:
pen = QPen()
pen.setStyle(self.line_style)
pen.setCapStyle(Qt.RoundCap)
if self.line_style is Qt.CustomDashLine and self.line_pattern:
pen.setDashPattern(self.line_pattern)
pen.setColor(self.line_colour)
pen.setWidth(self.line_width)
qp.setPen(pen)
qp.drawPolyline(*qpoints) # if self.is_point_visible(e)])
if self.display_points:
pen = QPen()
pen.setColor(self.point_colour)
if self.point_shape is PointShape.CIRCLE:
pen.setWidth(self.point_size / 10)
pen.setCapStyle(Qt.RoundCap)
draw_func = lambda painter, point: painter.drawPoint(point)
elif self.point_shape is PointShape.SQUARE:
pen.setWidth(self.point_size / 10)
pen.setCapStyle(Qt.SquareCap)
draw_func = lambda painter, point: painter.drawPoint(point)
elif self.point_shape is PointShape.RING:
pen.setWidth(self.point_size / 40)
draw_func = lambda painter, point: painter.drawEllipse(point, self.point_size / 20, self.point_size / 20)
else:
draw_func = print
qp.setPen(pen)
for pnt in qpoints:
draw_func(qp, pnt)
qp.end()
self._pixmap = pixmap
return self._pixmap
def paint(self, painter, option, widget=None):
"""
Paint a single line of the slice intersection marker.
"""
width = self._parent._width
height = self._parent._height
thickness = self._parent.PEN_THICKNESS
# Our pen thickness is consistent across zoom levels because the pen is "cosmetic"
# However, that doesn't ensure a consistent-size dash pattern.
# Determine the inverse scaling factor from scene to view to set a consistent dash pattern at all scales.
view = self.scene().views()[0]
inverted_transform, has_inverse = view.transform().inverted()
dash_length = old_div(4, inverted_transform.m11())
dash_length = max(0.5, dash_length)
# Draw the line with two pens to get a black-and-white dashed line.
# pen_white = QPen( Qt.white, thickness )
pen_white = QPen(self._parent._cropColor, thickness)
pen_white.setDashPattern([dash_length, dash_length])
pen_white.setCosmetic(True)
pen_black = QPen(Qt.black, thickness)
pen_black.setDashPattern([dash_length, dash_length])
pen_black.setCosmetic(True)
pen_black.setDashOffset(dash_length)
with painter_context(painter):
t = painter.transform()
painter.setTransform(self.scene().data2scene * t)
# Draw the line with two pens to get a black-and-white dashed line.
for pen in [pen_white, pen_black]:
painter.setPen(pen)
if self._direction == "horizontal":
painter.drawLine(QPointF(0.0, self.position), QPointF(width, self.position))
else:
painter.drawLine(QPointF(self.position, 0.0), QPointF(self.position, height))
def drawGrid(self, painter, exposed, gridColor):
rect = exposed.toAlignedRect()
if (rect.isNull()):
return
p = RenderParams(self.map())
# Determine the tile and pixel coordinates to start at
startTile = self.screenToTileCoords_(rect.topLeft()).toPoint()
startPos = self.tileToScreenCoords_(startTile).toPoint()
## Determine in which half of the tile the top-left corner of the area we
# need to draw is. If we're in the upper half, we need to start one row
# up due to those tiles being visible as well. How we go up one row
# depends on whether we're in the left or right half of the tile.
##
inUpperHalf = rect.y() - startPos.y() < p.sideOffsetY
inLeftHalf = rect.x() - startPos.x() < p.sideOffsetX
if (inUpperHalf):
startTile.setY(startTile.y() - 1)
if (inLeftHalf):
startTile.setX(startTile.x() - 1)
startTile.setX(max(0, startTile.x()))
startTile.setY(max(0, startTile.y()))
startPos = self.tileToScreenCoords_(startTile).toPoint()
oct = [
QPoint(0, p.tileHeight - p.sideOffsetY),
QPoint(0, p.sideOffsetY),
QPoint(p.sideOffsetX, 0),
QPoint(p.tileWidth - p.sideOffsetX, 0),
QPoint(p.tileWidth, p.sideOffsetY),
QPoint(p.tileWidth, p.tileHeight - p.sideOffsetY),
QPoint(p.tileWidth - p.sideOffsetX, p.tileHeight),
QPoint(p.sideOffsetX, p.tileHeight)]
lines = QVector()
#lines.reserve(8)
gridColor.setAlpha(128)
gridPen = QPen(gridColor)
gridPen.setCosmetic(True)
_x = QVector()
_x.append(2)
_x.append(2)
gridPen.setDashPattern(_x)
painter.setPen(gridPen)
if (p.staggerX):
# Odd row shifting is applied in the rendering loop, so un-apply it here
if (p.doStaggerX(startTile.x())):
startPos.setY(startPos.y() - p.rowHeight)
while(startPos.x() <= rect.right() and startTile.x() < self.map().width()):
rowTile = QPoint(startTile)
rowPos = QPoint(startPos)
if (p.doStaggerX(startTile.x())):
rowPos.setY(rowPos.y() + p.rowHeight)
while(rowPos.y() <= rect.bottom() and rowTile.y() < self.map().height()):
lines.append(QLineF(rowPos + oct[1], rowPos + oct[2]))
lines.append(QLineF(rowPos + oct[2], rowPos + oct[3]))
lines.append(QLineF(rowPos + oct[3], rowPos + oct[4]))
isStaggered = p.doStaggerX(startTile.x())
lastRow = rowTile.y() == self.map().height() - 1
lastColumn = rowTile.x() == self.map().width() - 1
bottomLeft = rowTile.x() == 0 or (lastRow and isStaggered)
bottomRight = lastColumn or (lastRow and isStaggered)
if (bottomRight):
lines.append(QLineF(rowPos + oct[5], rowPos + oct[6]))
if (lastRow):
lines.append(QLineF(rowPos + oct[6], rowPos + oct[7]))
if (bottomLeft):
lines.append(QLineF(rowPos + oct[7], rowPos + oct[0]))
painter.drawLines(lines)
lines.resize(0)
rowPos.setY(rowPos.y() + p.tileHeight + p.sideLengthY)
rowTile.setY(rowTile.y() + 1)
startPos.setX(startPos.x() + p.columnWidth)
startTile.setX(startTile.x() + 1)
else:
# Odd row shifting is applied in the rendering loop, so un-apply it here
if (p.doStaggerY(startTile.y())):
startPos.setX(startPos.x() - p.columnWidth)
while(startPos.y() <= rect.bottom() and startTile.y() < self.map().height()):
rowTile = QPoint(startTile)
rowPos = QPoint(startPos)
if (p.doStaggerY(startTile.y())):
rowPos.setX(rowPos.x() + p.columnWidth)
while(rowPos.x() <= rect.right() and rowTile.x() < self.map().width()):
lines.append(QLineF(rowPos + oct[0], rowPos + oct[1]))
lines.append(QLineF(rowPos + oct[1], rowPos + oct[2]))
lines.append(QLineF(rowPos + oct[3], rowPos + oct[4]))
isStaggered = p.doStaggerY(startTile.y())
lastRow = rowTile.y() == self.map().height() - 1
lastColumn = rowTile.x() == self.map().width() - 1
bottomLeft = lastRow or (rowTile.x() == 0 and not isStaggered)
bottomRight = lastRow or (lastColumn and isStaggered)
if (lastColumn):
lines.append(QLineF(rowPos + oct[4], rowPos + oct[5]))
if (bottomRight):
lines.append(QLineF(rowPos + oct[5], rowPos + oct[6]))
if (bottomLeft):
lines.append(QLineF(rowPos + oct[7], rowPos + oct[0]))
painter.drawLines(lines)
lines.resize(0)
rowPos.setX(rowPos.x() + p.tileWidth + p.sideLengthX)
rowTile.setX(rowTile.x() + 1)
startPos.setY(startPos.y() + p.rowHeight)
startTile.setY(startTile.y() + 1)