49 lines
1.6 KiB
C++
49 lines
1.6 KiB
C++
// This file is part of libigl, a simple c++ geometry processing library.
|
|
//
|
|
// Copyright (C) 2013 Alec Jacobson <alecjacobson@gmail.com>
|
|
//
|
|
// This Source Code Form is subject to the terms of the Mozilla Public License
|
|
// v. 2.0. If a copy of the MPL was not distributed with this file, You can
|
|
// obtain one at http://mozilla.org/MPL/2.0/.
|
|
#ifndef IGL_PROJECT_H
|
|
#define IGL_PROJECT_H
|
|
#include "igl_inline.h"
|
|
#include <Eigen/Dense>
|
|
namespace igl
|
|
{
|
|
// Eigen reimplementation of gluProject
|
|
// Inputs:
|
|
// obj* 3D objects' x, y, and z coordinates respectively
|
|
// model model matrix
|
|
// proj projection matrix
|
|
// viewport viewport vector
|
|
// Returns:
|
|
// screen space x, y, and z coordinates respectively
|
|
template <typename Scalar>
|
|
IGL_INLINE Eigen::Matrix<Scalar,3,1> project(
|
|
const Eigen::Matrix<Scalar,3,1>& obj,
|
|
const Eigen::Matrix<Scalar,4,4>& model,
|
|
const Eigen::Matrix<Scalar,4,4>& proj,
|
|
const Eigen::Matrix<Scalar,4,1>& viewport);
|
|
// Inputs:
|
|
// V #V by 3 list of object points
|
|
// model model matrix
|
|
// proj projection matrix
|
|
// viewport viewport vector
|
|
// Outputs:
|
|
// P #V by 3 list of screen space points
|
|
template <typename DerivedV, typename DerivedM, typename DerivedN, typename DerivedO, typename DerivedP>
|
|
IGL_INLINE void project(
|
|
const Eigen::MatrixBase<DerivedV>& V,
|
|
const Eigen::MatrixBase<DerivedM>& model,
|
|
const Eigen::MatrixBase<DerivedN>& proj,
|
|
const Eigen::MatrixBase<DerivedO>& viewport,
|
|
Eigen::PlainObjectBase<DerivedP> & P);
|
|
}
|
|
|
|
#ifndef IGL_STATIC_LIBRARY
|
|
# include "project.cpp"
|
|
#endif
|
|
|
|
#endif
|