QT绘图控件

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示例代码

void PlanetSystem::initSystem()
{// PlanetNode (公转半径，公转速度，自身半径，自转速度，颜色)rootPlanet = new PlanetNode(0, 0.0f, 40, 1.5f, QColor(255, 0, 0));PlanetNode *p0 = new PlanetNode(100, 1.5f, 15, 1.5f, QColor(255, 255, 0));rootPlanet->subPlanet.push_back(p0);PlanetNode *p1 = new PlanetNode(160, 0.5f, 25, 1.5f, QColor(0, 255, 0));rootPlanet->subPlanet.push_back(p1);PlanetNode *p1_1 = new PlanetNode(50, 1.0f, 15, 1.5f, QColor(0, 0, 255));p1->subPlanet.push_back(p1_1);PlanetNode *p3 = new PlanetNode(260, 0.2f, 20, 1.5f, QColor(0, 255, 255));