WebA QPolygonF is a QVector < QPointF >. The easiest way to add points to a QPolygonF is to use its streaming operator, as illustrated below: polygon = QPolygonF() polygon << QPointF(10.4, 20.5) << QPointF(20.2, 30.2) In addition to the functions provided by QVector , QPolygonF provides the boundingRect () and translate () functions for geometry ... WebAug 8, 2024 · 3. You have to take into account that: When adding a QPolygon then a closed figure will be drawn. It is not a central line but a central curve that is made up of line segments. The code for y in range (int (min_y),int (max_y)): works with (ymax-ymin) are greater than 1 but it fails in other cases.
Python Examples of PyQt5.QtGui.QPolygonF - ProgramCreek.com
WebA PySide.QtGui.QPolygonF is a QVector < PySide.QtCore.QPointF >. The easiest way to add points to a PySide.QtGui.QPolygonF is to use its streaming operator, as illustrated below: polygon = QPolygonF() polygon << QPointF(10.4, 20.5) << QPointF(20.2, 30.2) In addition to the functions provided by QVector , PySide.QtGui.QPolygonF provides the ... WebC++ QPolygonF::containsPoint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 类QPolygonF 的用法示例。. 在下文中一 … ガイズ
如何合并复杂的多边形? - QA Stack
WebNov 22, 2024 · 常见的 QGraphicsItem. 为方便起见,Qt 为最常见的形状提供了一组典型的标准 item。. 它们是:. QGraphicsSimpleTextItem:提供了一个简单的文本标签项. QGraphicsTextItem:提供了一个格式化的文本项. QGraphicsLineItem:提供了一个直线项. QGraphicsPixmapItem:提供了一个图像项 ... Webthe point () function. To populate the polygon, QPolygon provides. the setPoint () function to set the point at a given index, the. setPoints () function to set all the points in the polygon. (resizing it to the given number of points), and the putPoints () function which copies a number of given points into the polygon. WebJun 20, 2014 · 还有QPolygonF *poly=new QPolygonF(*vec),而且new的对象没有释放 刚才我改了。 实验之后找到了4个点(15,0),(15,30),(125,0),(125,30) 然后需要判断的点 … ガイズv6