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Cmake build of http://gfx.cs.princeton.edu/proj/trimesh2/
License: Other
This project forked from jrock08/trimesh2
Cmake build of http://gfx.cs.princeton.edu/proj/trimesh2/
License: Other
This is trimesh2, a C++ library and set of utilities for input, output, and basic manipulation of 3D triangle meshes. The goals of the code are ease of use and efficiency, possibly at the expense of some generality. The library includes the following: - Support for reading PLY, OFF, 3DS, VVD, and Wavefront OBJ files, together with a few other formats of mostly local interest (SM, RAY). - Support for writing PLY, OFF, and OBJ files. - A templated C++ class for constant-length vectors, with support for the usual arithmetic operations (add, subtract, componentwise multiply and divide, dot product, cross product, etc.) - A class for rigid-body transformations. - An OpenGL trackball/arcball implementation, with automatic selection of rotation center. - Algorithms for subdivision, smoothing, curvature estimation, triangle stripping, and various other simple mesh manipulations. Bundled together with the library are: - Bernd Gartner's "miniball" code for efficient exact bounding sphere computation: http://www.inf.ethz.ch/personal/gaertner/minibal.html - An ever-so-slightly tweaked version of the freeglut library, an open source GLUT replacement: http://freeglut.sourceforge.net/ - GLUI, a user interface library that sits on top of OpenGL, hence is portable to many different systems: http://www.nigels.com/glt/glui/ In addition, the following utility programs are included: - mesh_view: a simple 3D mesh viewer - mesh_make: create arbitrarily-tessellated meshes of various simple shapes - mesh_filter: applies a variety of simple transformations to a mesh, such as converting formats, flipping faces, subdivision, smoothing, rigid-body transformations, etc. - mesh_cc: list and/or extract connected components from a mesh - mesh_cat: combine several meshes into a single file - mesh_align: align 2 meshes using ICP The author of trimesh2 is Szymon Rusinkiewicz, and the library is distributed under the GNU General Public License (GPL). The various libraries distributed with trimesh2 are open source, and are believed to be covered by GPL-compatible licenses. Please see the COPYING file. Running the utilities: ---------------------- All of the programs must be run from the command line. Each displays a list of options when run without arguments. In the mesh_view program, the view is changed by dragging with particular mouse buttons as follows: Left: Rotate (release while moving to spin the object) Middle: Translate left, right, up, down Left+right: Translate left, right, up, down Right: Translate forward and back Mouse wheel: Translate forward and back Ctrl+Left: Move the light In addition, the following keys invoke various options: Space bar: Reset to initial view e: Toggle display of mesh edges l: Toggle lighting f: Toggle false-color rendering q: Exit s: Toggle specular component in reflection Shift-2: Toggle 2-sided lighting x: Write current viewpoint as a ".xf" file 1, 2, etc.: Toggle the n-th mesh off and on Using the library: ------------------ There is no complete documentation for the library - poke around in include/*.h to see what is available, and look in utilsrc/*.cc to see how it's used. Here's a trivial program to help you get started: #include "TriMesh.h" #include <iostream> using namespace std; int main(int argc, char *argv[]) { const char *filename = "foo.ply"; TriMesh *m = TriMesh::read(filename); if (!m) exit(1); cout << "There are " << m->vertices.size() << " vertices" << endl; cout << "Vertex 0 is at " << m->vertices[0] << endl; // Convert triangle strips to faces, if necessary m->need_faces(); cout << "Face 0 has vertices " << m->faces[0][0] << ", " << m->faces[0][1] << ", and " << m->faces[0][2] << endl; m->need_normals(); cout << "Vertex 0 has normal " << m->normals[0] << endl; } Compiling: ---------- The code is written in C++, and is known to compile under Ubuntu and Mac on recent g++ (4.2.1). I have not attempted to build it on windows. If you have any issues with the build using this package you should try the package provided with makefiles at http://gfx.cs.princeton.edu/proj/trimesh2/ If the makefile package works for you, but the CMake one does not, you should try me ([email protected]).
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