WebApr 30, 2024 · In a custom widget MyCanvas promoted from Widget in Qt Creator, I need the addressability of MainWindow to execute a function, setMatrix(). The code: this->parentWidget()->parentWidget()->setMatrix(p.combinedMatrix()); finds the centralWidget and then "MainWindow", but it does not find the setMatrix() function. WebA QTransform object can be built using the setMatrix(), scale(), rotate(), translate() and shear() functions. can be built by applying basic matrix operations. The matrix can also be defined when constructed, and it can be reset to the identity matrix (the default) using the reset() function.
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WebSep 19, 2014 · The math Qt is performing is correct, but the frame of reference that Qt is using doesn't match up with what you are thinking. Matrix Math: So the components you are seeing in the math are adding shear in the x and y directions of image. But the rotation that Qt does is about one of those axis. WebI have load an image in QGraphicsView, but consider of the size of QGraphicsView scene, I need to scale the image first, then add the scaled image to scene. e.g. The image original size is 1536*10... inedible jelly crossword
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WebNov 2, 2016 · QMatrix类实现显示图片过程中对图片进行缩放、旋转等一系列二维座标系统的转换动作可以藉由QMatrix的setMatrix ()方法设定m11、m12、m21、m22、dx、dy，或 … WebMay 24, 2013 · My Qt code seems correct because I have tried to create a random matrix in the constructor* MainCalss ()* using the same Qt code as GetMatrix and it works. But when I try to call the void GetMatrix (std::vector> p) function from *calss Test * it just doesn't display. I mean I can display the values using cout<< but my Qt ... WebPython QGraphicsView.setMatrix - 1 examples found. These are the top rated real world Python examples of PyQt4QtGui.QGraphicsView.setMatrix extracted from open source … log in nordea business