osg::BezierCurves类的源码
时间: 2024-01-12 07:02:58 浏览: 37
以下是一个简单的 osg::BezierCurves 类的源代码示例:
```c++
#include <osg/Vec3>
#include <osg/Array>
#include <osg/Geometry>
#include <osg/BezierCurves>
osg::Geometry* createBezierCurves(osg::Vec3Array* controlPoints, unsigned int numSegments)
{
// Create the Bezier curve.
osg::BezierCurves* bezierCurve = new osg::BezierCurves();
bezierCurve->setControlPoints(controlPoints);
bezierCurve->setNumSegments(numSegments);
// Create the geometry node for rendering.
osg::Geometry* geometry = new osg::Geometry();
geometry->setVertexArray(bezierCurve->getVertexArray());
geometry->setNormalArray(bezierCurve->getNormalArray());
geometry->setNormalBinding(osg::Geometry::BIND_PER_VERTEX);
geometry->setColorArray(bezierCurve->getColorArray());
geometry->setColorBinding(osg::Geometry::BIND_PER_VERTEX);
geometry->addPrimitiveSet(bezierCurve->getCurvePrimitiveSet());
return geometry;
}
```
这个示例创建一个三维贝塞尔曲线,并使用 osg::BezierCurves 类来计算曲线的顶点和法线。然后,使用一个 osg::Geometry 对象来渲染曲线。