目标点光源

目标点光源是点光源的目标版本。它与点光源相同，只是您必须提供目标点。

以下代码演示如何设置简单的目标点光源：

// To setup a targetpoint light
AcDbLight pointLight;
pointLight.setLightType(AcGiDrawable::kPointLight);
pointLight.setPosition(AcGePoint3d(0,0,5));
pointLight.setTargetlocation(AcGepoint3d(0,0,0);)