本文整理汇总了C++中Polyline::clear方法的典型用法代码示例。如果您正苦于以下问题：C++ Polyline::clear方法的具体用法？C++ Polyline::clear怎么用？C++ Polyline::clear使用的例子？那么, 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Polyline的用法示例。
在下文中一共展示了Polyline::clear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C++代码示例。
示例1: calculatePolylineFromCP
void calculatePolylineFromCP(const std::vector<Vector2d> &aCPs)
{
// build a polyline from our control points, for visible.
polyline.clear();
polyline.setPosition(Vector2d(400, 400) );
for (unsigned int i = 0; i < aCPs.size(); ++i)
polyline.addVertex( aCPs[i] );
// to do the evaluation of the curve, get an array pos on the curve
std::vector<Vector2d> aPos;
for (int i = 0; i <= 200; ++i)
aPos.push_back( evaluateCubicBezier_deCasteljau(aCPs, i * 1.0f / 200) );
// we use those pos on the curve to simulate a curve by a polyline, for visible.
curvePolyline.clear();
curvePolyline.setPosition(Vector2d(400, 400) );
for (unsigned int i = 0; i < aPos.size(); ++i)
curvePolyline.addVertex( aPos[i] );
}