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Python QPolygonF.p1方法代码示例

本文整理汇总了Python中PyQt4.QtGui.QPolygonF.p1方法的典型用法代码示例。如果您正苦于以下问题:Python QPolygonF.p1方法的具体用法?Python QPolygonF.p1怎么用?Python QPolygonF.p1使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在PyQt4.QtGui.QPolygonF的用法示例。


在下文中一共展示了QPolygonF.p1方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Python代码示例。

示例1: setGeometry

# 需要导入模块: from PyQt4.QtGui import QPolygonF [as 别名]
# 或者: from PyQt4.QtGui.QPolygonF import p1 [as 别名]

#.........这里部分代码省略.........
                            cnt += 1
                        else:
                            break
                        next += 1
                        if next == len(polygon):
                            next = 0
                    #print "%d points missing" % cnt
                    # First, find total length of wall
                    length = 0.0
                    side = sides[prev]
                    for i in range(len(side)-1):
                        length += dist(side[i], side[i+1])
                    diff = length/(cnt+1)  # Distance between two points
                    i = cur
                    p = side[0]
                    for j in range(cnt):
                        l = 0.0
                        found = False
                        for k in range(len(side)-1):
                            dl = dist(side[k], side[k+1])
                            l += dl
                            if l > diff*(1+1e-5):  # Account for accumulation of small errors
                                c = (i + j) % len(polygon)
                                delta = diff-l+dl
                                p = side[k] + (side[k+1]-side[k])*delta/dl
                                s1 = side[:k+1] + [p]
                                s2 = [p] + side[k+1:]
                                sides[c-1] = s1
                                sides[c] = s2
                                side = s2
                                polygon[c] = p
                                found = True
                                break
                        assert found, "Could not find point in polygon for position %d" % (j+i,)
                        #p = p + diff
                        #c = (i+j)%len(polygon)
                        #polygon[c] = QPointF(p)
                    cur = next
                else:
                    prev = cur
                    cur += 1
                if cur >= len(polygon):
                    cur = 0
            assert None not in polygon, "Error, some dummy points were not added"
        else:
            polygon = [p for p in polygon if p is not None]
        center = sum(polygon, QPointF(0, 0)) / float(len(polygon))
        self.center = center
        if len(polygon) > 2:
            polygon = QPolygonF(polygon+[polygon[0]])
            polygon.translate(-center)
            polygon_shape = QPolygonF(polygon_shape + [polygon_shape[0]])
            self.polygon_shape = polygon_shape
            polygon_shape.translate(-center)
            # Translate the sides too
            sides = [[p-center for p in s] for s in sides]
            self.sides = sides
            assert len(sides) == len(polygon)-1
        elif len(polygon) == 2:
            polygon = QLineF(polygon[0], polygon[1])
            polygon.translate(-center)
        else:
            polygon = None
        self.polygon = polygon
        self.setPos(center)
        params = parameters.instance
        self.prepareGeometryChange()
        size = params.cell_size
        scale = self.scale
        height = size*cos(pi/6)*scale[1]
        width = size*scale[0]
        pos_x = size*cos(pi/3)*scale[0]
        self.sel_rect = QRectF(-width, -height, 2*width, 2*height)
        if isinstance(polygon, QPolygonF):
            self.rect = self.polygon_shape.boundingRect() | self.sel_rect
        elif isinstance(polygon, QLineF):
            self.rect = QRectF(polygon.p1(), polygon.p2()).normalized() | self.sel_rect
        else:
            self.rect = self.sel_rect
        self.bounding_rect = QRectF(self.rect)
        if self.p1 in points and self.p2 in points:
            self.division_line = QLineF(points[self.p1].pos()-center, points[self.p2].pos()-center)
        else:
            self.division_line = None
        self.hexagon = QPolygonF([QPointF(-width, 0), QPointF(-pos_x, height), QPointF(pos_x, height),
                                  QPointF(width, 0), QPointF(pos_x, -height), QPointF(-pos_x, -height)])
        self.hexagon_path = QPainterPath()
        self.hexagon_path.addPolygon(self.hexagon)
        s1 = QPainterPath()
        if isinstance(self.polygon, QPolygonF):
            s1.addPolygon(polygon_shape)
        elif isinstance(self.polygon, QLineF):
            s1.moveTo(self.polygon.p1())
            s1.lineTo(self.polygon.p2())
        stroke = QPainterPathStroker()
        sel_thick = 3*params.cell_thickness
        if sel_thick == 0:
            sel_thick = 3
        stroke.setWidth(sel_thick)
        self.stroke = stroke.createStroke(s1)
开发者ID:PierreBdR,项目名称:point_tracker,代码行数:104,代码来源:tracking_items.py


注:本文中的PyQt4.QtGui.QPolygonF.p1方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。