WebFeb 22, 2024 · 相信进入到这里的都是涉及到交易数据分析的同行,目前国内K线图表没有非常完善的一家开源公司,TradingView相信大家都知道它的强大。 目前它是一个开源免 … WebAug 23, 2016 · 2 Answers Sorted by: 14 QGraphicsView::resetMatrix () resets the matrix, and calling it before applying the scale works: view->scale (0.1, 0.1); view->resetMatrix (); view->scale (2, 2); // the scale factor is (2,2) Share Follow edited Jun 18, 2024 at 8:56 answered Aug 23, 2016 at 12:55 sashoalm 73.2k 116 424 761 Add a comment 6 …
QT画线教程(GraphicsViewFramework)_qgraphicsview …
WebDec 9, 2013 · Qt Graphics View Framework绘制直线. 如果在移动的过程中,一直添加直线,就会显示为很多直线从一个点发出,或者recr一直添加,就会想图形残留影像一样的效 … Webk线图可以说是金融数据可视化中最知名也是最常用的。 绘制K线图需要OHLC类型的数据(O:开盘价;H:最高价;L:最低价;C:收盘价)。 有时候,我们还可以在K线图上添加各种技术分析指标。 rbs pay in cheques by post
qt QGraphicsView绘图进阶重写QGraphicsPolygonItem或 …
WebJun 7, 2015 · OK, here's some code based on some posts I've come across via Google and the "textures" example. Someone please help me make this code work. By the way, I'm currently using OSX 10.9. gview.pro: HEADERS = window.h \ glwidget.h SOURCES = main.cc \ window.cc \ glwidget.cc QT += core gui widgets opengl. main.cc: WebDec 13, 2011 · The ultimate solution to the problem, consists in wrapping the QGraphicsView into a QFrame and setting the latter as the viewPort of the QAbstractItemView. The code will be the following: @ m_graphicsView = new QGraphicsView (m_graphScene); // optionally resizeAnchor and other bells and whistles … WebJun 10, 2013 · 5 Answers. Solution for my question is showEvent () for Dialog. This means that you can't call fitInView () before the form is showed, so you have to create showEvent () for dialog and the picture will be fitted into QGraphics View's frame. void YourClass::showEvent (QShowEvent *) { ui->graphicsView->fitInView (scn->sceneRect … r b spencer inc