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https://github.com/SoftFever/OrcaSlicer.git
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2ae2672ee9
Fixing dep build script on Windows and removing some warnings. Use bundled igl by default. Not building with the dependency scripts if not explicitly stated. This way, it will stay in Fix the libigl patch to include C source files in header only mode.
74 lines
2.4 KiB
C++
74 lines
2.4 KiB
C++
// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2016 Alec Jacobson <alecjacobson@gmail.com>
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//
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// This Source Code Form is subject to the terms of the Mozilla Public License
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// v. 2.0. If a copy of the MPL was not distributed with this file, You can
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// obtain one at http://mozilla.org/MPL/2.0/.
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#ifndef IGL_UNPROJECT_ONTO_MESH
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#define IGL_UNPROJECT_ONTO_MESH
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#include "igl_inline.h"
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#include "Hit.h"
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#include <Eigen/Core>
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#include <functional>
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namespace igl
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{
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// Unproject a screen location (using current opengl viewport, projection, and
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// model view) to a 3D position _onto_ a given mesh, if the ray through the
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// given screen location (x,y) _hits_ the mesh.
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//
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// Inputs:
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// pos screen space coordinates
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// model model matrix
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// proj projection matrix
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// viewport vieweport vector
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// V #V by 3 list of mesh vertex positions
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// F #F by 3 list of mesh triangle indices into V
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// Outputs:
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// fid id of the first face hit
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// bc barycentric coordinates of hit
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// Returns true if there's a hit
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template < typename DerivedV, typename DerivedF, typename Derivedbc>
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IGL_INLINE bool unproject_onto_mesh(
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const Eigen::Vector2f& pos,
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const Eigen::Matrix4f& model,
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const Eigen::Matrix4f& proj,
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const Eigen::Vector4f& viewport,
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const Eigen::PlainObjectBase<DerivedV> & V,
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const Eigen::PlainObjectBase<DerivedF> & F,
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int & fid,
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Eigen::PlainObjectBase<Derivedbc> & bc);
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//
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// Inputs:
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// pos screen space coordinates
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// model model matrix
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// proj projection matrix
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// viewport vieweport vector
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// shoot_ray function handle that outputs hits of a given ray against a
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// mesh (embedded in function handles as captured variable/data)
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// Outputs:
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// fid id of the first face hit
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// bc barycentric coordinates of hit
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// Returns true if there's a hit
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template <typename Derivedbc>
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IGL_INLINE bool unproject_onto_mesh(
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const Eigen::Vector2f& pos,
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const Eigen::Matrix4f& model,
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const Eigen::Matrix4f& proj,
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const Eigen::Vector4f& viewport,
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const std::function<
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bool(
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const Eigen::Vector3f&,
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const Eigen::Vector3f&,
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igl::Hit &)
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> & shoot_ray,
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int & fid,
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Eigen::PlainObjectBase<Derivedbc> & bc);
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}
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#ifndef IGL_STATIC_LIBRARY
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# include "unproject_onto_mesh.cpp"
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#endif
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#endif
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