question: public Line3D ( Stack < Vector3 > points , float thickness , int [ ] colors , boolean createVBOs ) { super ( ) ; mPoints = points ; mLineThickness = thickness ; mColors = colors ; if ( colors != null && colors . length != points . size ( ) ) throw new RuntimeException ( "The number of line points and colors is not the same." ) ; init ( createVBOs ) ; }
target:  Creates a line primitive with a specified color for each point.