public class PointComp { public Point3D point; public Point3D rotatedPoint; public Point2D projectedPoint; public PointComp(){ } public void setRotatedPoint(Matrix camMatrix){ camMatrix.multiplyPoint3to(point, rotatedPoint); } public void project(double FPDis, int scrX, int scrY){ rotatedPoint.projectOn(FPDis, scrX, scrY, projectedPoint); } }