added download of data and cleaned up cmake
This commit is contained in:
Teseo Schneider
@@ -29,6 +29,8 @@ external/embree/bin
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external/embree/doc/html/*
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external/embree/doc/latex/*
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external/gmp
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external/cgal
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external/cork
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external/mpfr
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external/boost
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external/.cache
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+14
-1
@@ -1,3 +1,16 @@
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cmake_minimum_required(VERSION 3.1)
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project(libigl)
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# These ensure that lib*.a are placed in the directory where `cmake
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# ../optional/` was issued.
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set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
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set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
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set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
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### conditionally compile certain modules depending on libraries found on the system
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list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_LIST_DIR}/cmake)
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### Adding libIGL: choose the path to your local copy libIGL
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include(libigl)
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include(${CMAKE_CURRENT_LIST_DIR}/optional/CMakeLists.txt)
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@@ -12,6 +12,18 @@ function(igl_download_project name)
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)
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endfunction()
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# Shortcut function
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function(igl_download_data folder name)
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download_project(
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PROJ ${name}
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SOURCE_DIR ${folder}/data
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DOWNLOAD_DIR ${folder}/.cache/data
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QUIET
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${ARGN}
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)
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endfunction()
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################################################################################
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## CGAL
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@@ -107,3 +119,45 @@ function(igl_download_triangle)
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)
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endfunction()
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## Google test
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function(igl_download_googletest)
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igl_download_project(googletest
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GIT_REPOSITORY https://github.com/google/googletest
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GIT_TAG v1.8.1
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)
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endfunction()
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################################################################################
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## Test data
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function(igl_download_test_data)
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set(IGL_TEST_DATA ${LIBIGL_EXTERNAL}/../tests/data)
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download_project(
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PROJ test_data
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SOURCE_DIR ${IGL_TEST_DATA}
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DOWNLOAD_DIR ${LIBIGL_EXTERNAL}/.cache/test_data
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QUIET
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GIT_REPOSITORY https://github.com/libigl/libigl-tests-data
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GIT_TAG bdb158c9695d5932bb6fc1cde078d8210bb13436
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)
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endfunction()
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## Tutorial data
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function(igl_download_tutorial_data)
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set(IGL_TUTORIAL_DATA ${LIBIGL_EXTERNAL}/../tutorial/data)
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download_project(
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PROJ tutorial_data
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SOURCE_DIR ${IGL_TUTORIAL_DATA}
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DOWNLOAD_DIR ${LIBIGL_EXTERNAL}/.cache/tutorial_data
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QUIET
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GIT_REPOSITORY https://github.com/libigl/libigl-tutorial-data
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GIT_TAG 5c6a1ea809c043d71e5595775709c15325a7158c
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)
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endfunction()
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@@ -1,22 +0,0 @@
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cmake_minimum_required(VERSION 3.1)
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project(libigl)
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set (CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/../shared/cmake")
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# These ensure that lib*.a are placed in the directory where `cmake
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# ../optional/` was issued.
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set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
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set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
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set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
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### conditionally compile certain modules depending on libraries found on the system
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list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_LIST_DIR}/../shared/cmake)
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find_package(CGAL QUIET COMPONENTS Core)
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find_package(MATLAB QUIET)
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find_package(MOSEK)
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### libIGL options: choose between header only and compiled static library
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option(LIBIGL_USE_STATIC_LIBRARY "Use LibIGL as static library" ON)
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### Adding libIGL: choose the path to your local copy libIGL
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include(libigl)
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@@ -1,373 +0,0 @@
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<!DOCTYPE html>
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<html xmlns="http://www.w3.org/1999/xhtml" lang="en">
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<head>
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<meta charset="utf-8"/>
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<title>libigl</title>
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<meta name="author" content="Alec Jacobson and Daniele Panozzo and others"/>
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<link type="text/css" rel="stylesheet" href="../tutorial/style.css"/>
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<script type='text/javascript' src='http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML'></script> <link rel='stylesheet' href='http://yandex.st/highlightjs/7.3/styles/default.min.css'> <script src='http://yandex.st/highlightjs/7.3/highlight.min.js'></script> <script>hljs.initHighlightingOnLoad();</script>
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</head>
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<body>
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<h1 id="compilinglibiglasastaticlibrary">Compiling libigl as a static library</h1>
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<blockquote>
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<p>Warning: compiling libigl as a static library is considerably more difficult
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than using it as a header-only library (see <a href="../">../README.md</a> instead). Do
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it only if you are experienced with C++, cmake and make, and you want to
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improve your compilation times.</p>
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</blockquote>
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<p>Libigl is developed most often on Mac OS X, though has current users in Linux
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and Windows.</p>
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<h3 id="linuxmacosxcygwin">Linux/Mac OS X/Cygwin </h3>
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<p>Libigl may also be compiled to a static library. This is advantageous when
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building a project with libigl, since when used as an header-only library can
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slow down compile times.</p>
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<p>To build the entire libigl library producing at least <code>libigl/lib/libigl.a</code> and
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possible other (automatically detected) extras, e.g. <code>libigl/lib/libiglcgal.a</code>
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from <em>this current directory</em>: issue:</p>
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<pre><code>mkdir -p ../lib
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cd ../lib
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cmake -DCMAKE_BUILD_TYPE=Release ../optional
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make
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</code></pre>
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<h4 id="warnings">Warnings </h4>
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<p>You should expect to see a few linker warnings of the form:</p>
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<pre><code>/opt/local/bin/ranlib: file: libigl.a(*.cpp.o) has no symbols
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</code></pre>
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<p>These are (admittedly unpopular) functions that have never been used by us
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statically so we haven’t explicit instantiations (yet).</p>
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<h4 id="external">External </h4>
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<p>Finally there are a number of external libraries that we include in
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<code>./external/</code> because they are either difficult to obtain or they have been
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patched for easier use with libigl. Please see the respective readmes in those
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directories or build the tutorial using cmake, which will recursively build all
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dependencies.</p>
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<h5 id="installingembree2.0">Installing Embree 2.0 </h5>
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<p>To build the embree library and executables on Mac OS X issue:</p>
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<pre><code>cd external/embree
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mkdir build
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cd build
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cmake ..
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# Or using a different compiler
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#cmake .. -DCMAKE_C_COMPILER=/opt/local/bin/gcc -DCMAKE_CXX_COMPILER=/opt/local/bin/g++
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make
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# Could also install embree to your root, but libigl examples don't expect
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# this
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#sudo make install
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</code></pre>
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<h2 id="extras">Extras </h2>
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<h3 id="bbw">bbw </h3>
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<p>This library extra contains functions for computing Bounded Biharmonic Weights, can
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be used with and without the <a href="#mosek">mosek</a> extra via the <code>IGL_NO_MOSEK</code>
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macro.</p>
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<h3 id="boolean">boolean </h3>
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<p>This library extra contains functions for computing mesh-mesh booleans,
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depending on CGAL and optionally Cork.</p>
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<h3 id="cgal">cgal </h3>
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<p>This library extra utilizes CGAL’s efficient and exact intersection and
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proximity queries.</p>
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<h3 id="embree">embree </h3>
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<p>This library extra utilizes embree’s efficient ray tracing queries.</p>
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<h3 id="matlab">matlab </h3>
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<p>This library extra provides support for reading and writing <code>.mat</code> workspace
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files, interfacing with Matlab at run time and compiling mex functions.</p>
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<h3 id="mosek">mosek </h3>
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<p>This library extra utilizes mosek’s efficient interior-point solver for
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quadratic programs.</p>
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<h3 id="png">png </h3>
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<p>This library extra uses <code>libpng</code> and <code>YImage</code> to read and write <code>.png</code> files.</p>
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<h3 id="tetgen">tetgen </h3>
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<p>This library extra provides a simplified wrapper to the tetgen 3d tetrahedral
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meshing library.</p>
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<h3 id="triangle">Triangle </h3>
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<p>This library extra provides a simplified wrapper to the triangle 2d triangle
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meshing library.</p>
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<h3 id="viewer">viewer </h3>
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<p>This library extra utilizes glfw and glew to open an opengl context and launch
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a simple mesh viewer.</p>
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<h3 id="xml">xml </h3>
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<p>This library extra utilizes tinyxml2 to read and write serialized classes
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containing Eigen matrices and other standard simple data-structures.</p>
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<h2 id="development">Development </h2>
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<p>Further documentation for developers is listed in
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<a href="../style_guidelines.html">style_guidelines.html</a>.</p>
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<h2 id="license">License </h2>
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<p>See <code>LICENSE.txt</code></p>
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<h2 id="zipping">Zipping </h2>
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<p>Zip this directory without .git litter and binaries using:</p>
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<pre><code>git archive -prefix=libigl/ -o libigl.zip master
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</code></pre>
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<h2 id="explicitinstantiationsoftemplatedfunctions">Explicit instantiations of templated functions</h2>
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<p>Special care must be taken by the developers of each function and
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class in the libigl library that uses C++ templates. If this function
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is intended to be compiled into the statically linked libigl library
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then function is only compiled for each <i>explicitly</i> instantiated
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declaration. These should be added at the bottom of the corresponding
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.cpp file surrounded by a</p>
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||||
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||||
<pre><code>#ifdef IGL_STATIC_LIBRARY
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</code></pre>
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||||
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||||
<p>Of course, a developer may not know ahead of time which
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||||
instantiations should be explicitly included in the igl static lib.
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One way to find out is to add one explicit instantiation for each
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||||
call in one’s own project. This only ever needs to be done once for
|
||||
each template.</p>
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||||
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||||
<p>The process is somewhat mechanical using a linker with reasonable error
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output.</p>
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||||
|
||||
<p>Supposed for example we have compiled the igl static lib, including the
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cat.h and cat.cpp functions, without any explicit instantiation. Say
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||||
using the makefile in the <code>libigl</code> directory:</p>
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||||
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<pre><code>cd $LIBIGL
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make
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||||
</code></pre>
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||||
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||||
<p>Now if we try to compile a project and link against it we may get
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an error like:</p>
|
||||
|
||||
<pre><code>Undefined symbols for architecture x86_64:
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||||
"Eigen::Matrix<int, -1, -1, 0, -1, -1> igl::cat<Eigen::Matrix<int, -1, -1, 0, -1, -1> >(int, Eigen::Matrix<int, -1, -1, 0, -1, -1> const&, Eigen::Matrix<int, -1, -1, 0, -1, -1> const&)", referenced from:
|
||||
uniform_sample(Eigen::Matrix<double, -1, -1, 0, -1, -1> const&, Eigen::Matrix<int, -1, -1, 0, -1, -1> const&, int, double, Eigen::Matrix<double, -1, -1, 0, -1, -1>&)in Skinning.o
|
||||
"Eigen::SparseMatrix<double, 0, int> igl::cat<Eigen::SparseMatrix<double, 0, int> >(int, Eigen::SparseMatrix<double, 0, int> const&, Eigen::SparseMatrix<double, 0, int> const&)", referenced from:
|
||||
covariance_scatter_matrix(Eigen::Matrix<double, -1, -1, 0, -1, -1> const&, Eigen::Matrix<int, -1, -1, 0, -1, -1> const&, ArapEnergy, Eigen::SparseMatrix<double, 0, int>&)in arap_dof.o
|
||||
arap_rhs(Eigen::Matrix<double, -1, -1, 0, -1, -1> const&, Eigen::Matrix<int, -1, -1, 0, -1, -1> const&, ArapEnergy, Eigen::SparseMatrix<double, 0, int>&)in arap_dof.o
|
||||
</code></pre>
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||||
|
||||
<p>This looks like a mess, but luckily we don’t really need to read it
|
||||
all. Just copy the first part in quotes</p>
|
||||
|
||||
<pre><code>Eigen::Matrix<int, -1, -1, 0, -1, -1> igl::cat<Eigen::Matrix<int, -1, -1, 0, -1, -1> >(int, Eigen::Matrix<int, -1, -1, 0, -1, -1> const&, Eigen::Matrix<int, -1, -1, 0, -1, -1> const&)
|
||||
</code></pre>
|
||||
|
||||
<p>, then append it
|
||||
to the list of explicit template instantiations at the end of
|
||||
<code>cat.cpp</code> after the word
|
||||
<strong>template</strong> and followed by a semi-colon.
|
||||
Like this:</p>
|
||||
|
||||
<pre><code>#ifdef IGL_STATIC_LIBRARY
|
||||
// Explicit template instantiation
|
||||
template Eigen::Matrix<int, -1, -1, 0, -1, -1> igl::cat<Eigen::Matrix<int, -1, -1, 0, -1, -1> >(int, Eigen::Matrix<int, -1, -1, 0, -1, -1> const&, Eigen::Matrix<int, -1, -1, 0, -1, -1> const&);
|
||||
#endif
|
||||
</code></pre>
|
||||
|
||||
<p>Then you must recompile the IGL static library.</p>
|
||||
|
||||
<pre><code>cd $LIBIGL
|
||||
make
|
||||
</code></pre>
|
||||
|
||||
<p>And try to compile your project again, potentially repeating this
|
||||
process until no more symbols are undefined.</p>
|
||||
|
||||
<p><code>It may be useful to check that you code compiles with
|
||||
no errors first using the headers-only version to be sure that all errors are from missing template
|
||||
instantiations.</code></p>
|
||||
|
||||
<p>If you’re using make then the following command will
|
||||
reveal each missing symbol on its own line:</p>
|
||||
|
||||
<pre><code>make 2>&1 | grep "referenced from" | sed -e "s/, referenced from.*//"
|
||||
</code></pre>
|
||||
|
||||
<p>Alternatively you can use the <code>autoexplicit.sh</code> function
|
||||
which (for well organized .h/.cpp pairs in libigl) automatically
|
||||
create explicit instantiations from your compiler’s error messages.
|
||||
Repeat this process until convergence:</p>
|
||||
|
||||
<pre><code>cd /to/your/project
|
||||
make 2>$LIBIGL/make.err
|
||||
cd $LIBIGL
|
||||
cat make.err | ./autoexplicit.sh
|
||||
make clean
|
||||
make
|
||||
</code></pre>
|
||||
|
||||
<h3 id="benefitsofstaticlibrary">Benefits of static library</h3>
|
||||
|
||||
<ul>
|
||||
<li><strong>Faster compile time</strong>: Because the libigl library
|
||||
is already compiled, only the new code in ones project must be
|
||||
compiled and then linked to IGL. This means compile times are
|
||||
generally faster.</li>
|
||||
<li><strong>Debug or optimized</strong>: The IGL static
|
||||
library may be compiled in debug mode or optimized release mode
|
||||
regardless of whether one’s project is being optimized or
|
||||
debugged.</li>
|
||||
</ul>
|
||||
|
||||
<h3 id="drawbacksofstaticlibrary">Drawbacks of static library</h3>
|
||||
|
||||
<ul>
|
||||
<li><strong>Hard to use templates</strong>: Special
|
||||
care</a> (by the developers of the library) needs to be taken when
|
||||
exposing templated functions.</li>
|
||||
</ul>
|
||||
|
||||
<h1 id="compressed.h.cpppair">Compressed .h/.cpp pair</h1>
|
||||
|
||||
<p>Calling the script:</p>
|
||||
|
||||
<pre><code>scripts/compress.sh igl.h igl.cpp
|
||||
</code></pre>
|
||||
|
||||
<p>will create a single header <code>igl.h</code> and a single cpp file <code>igl.cpp</code>.</p>
|
||||
|
||||
<p>Alternatively, you can also compress everything into a single header file:</p>
|
||||
|
||||
<pre><code>scripts/compress.sh igl.h
|
||||
</code></pre>
|
||||
|
||||
<h3 id="benefitsofcompressed.h.cpppair">Benefits of compressed .h/.cpp pair</h3>
|
||||
|
||||
<ul>
|
||||
<li><strong>Easy incorporation</strong>: This can be easily incorporated
|
||||
into external projects.</li>
|
||||
</ul>
|
||||
|
||||
<h3 id="drawbacksofcompressed.h.cpppair">Drawbacks of compressed .h/.cpp pair</h3>
|
||||
|
||||
<ul>
|
||||
<li><p><strong>Hard to debug/edit</strong>: The compressed files are
|
||||
automatically generated. They’re huge and should not be edited. Thus
|
||||
debugging and editing are near impossible.</p></li>
|
||||
<li><p><strong>Compounded dependencies</strong>:
|
||||
An immediate disadvantage of this
|
||||
seems to be that even to use a single function (e.g.
|
||||
<code>cotmatrix</code>), compiling and linking against
|
||||
<code>igl.cpp</code> will require linking to all of <code>libigl</code>’s
|
||||
dependencies (<code>OpenGL</code>, <code>GLUT</code>,
|
||||
<code>AntTweakBar</code>, <code>BLAS</code>). However, because all
|
||||
dependencies other than Eigen should be encapsulated between
|
||||
<code>#ifndef</code> guards (e.g. <code>#ifndef IGL_NO_OPENGL</code>, it
|
||||
is possible to ignore certain functions that have such dependencies.</p></li>
|
||||
<li><p><strong>Long compile</strong>:
|
||||
Compiling <code>igl.cpp</code> takes a long time and isn’t easily parallelized (no <code>make
|
||||
-j12</code> equivalent).</p></li>
|
||||
</ul>
|
||||
|
||||
<p>Here’s a tiny test example using <code>igl.h</code> and <code>igl.cpp</code>. Save the following in <code>test.cpp</code>:</p>
|
||||
|
||||
<pre><code>#include <igl.h>
|
||||
#include <Eigen/Core>
|
||||
|
||||
int main(int argc, char * argv[])
|
||||
{
|
||||
Eigen::MatrixXd V;
|
||||
Eigen::MatrixXi F;
|
||||
return (argc>=2 && igl::read_triangle_mesh(argv[1],V,F)?0:1);
|
||||
}
|
||||
</code></pre>
|
||||
|
||||
<p>Then compile <code>igl.cpp</code> with:</p>
|
||||
|
||||
<pre><code>g++ -o igl.o -c igl.cpp -I/opt/local/include/eigen3 -DIGL_NO_OPENGL -DIGL_NO_ANTTWEAKBAR
|
||||
</code></pre>
|
||||
|
||||
<p>Notice that we’re using <code>-DIGL_NO_OPENGL -DIGL_NO_ANTTWEAKBAR</code> to disable any libigl dependencies on OpenGL and AntTweakBar.</p>
|
||||
|
||||
<p>Now compile <code>test.cpp</code> with:</p>
|
||||
|
||||
<pre><code>g++ -g -I/opt/local/include/eigen3/ -I/usr/local/igl/libigl/ -L/usr/local/igl/libigl/ -ligl -DIGL_NO_OPENGL -DIGL_NO_ANTTWEAKBAR -o test
|
||||
</code></pre>
|
||||
|
||||
<p>Try running it with:</p>
|
||||
|
||||
<pre><code>./test path/to/mesh.obj
|
||||
</code></pre>
|
||||
|
||||
<p>The following bash one-liner will find all source files that contain the string <code>OpenGL</code> but don’t contain and <code>IGL_NO_OPENGL</code> guard:</p>
|
||||
|
||||
<pre><code>grep OpenGL `grep -L IGL_NO_OPENGL include/igl/*`
|
||||
</code></pre>
|
||||
|
||||
<h3 id="optional">Optional </h3>
|
||||
|
||||
<ul>
|
||||
<li>OpenGL (disable with <code>IGL_NO_OPENGL</code>)
|
||||
|
||||
<ul>
|
||||
<li>OpenGL >= 4 (enable with <code>IGL_OPENGL_4</code>)</li>
|
||||
</ul></li>
|
||||
<li>AntTweakBar (disable with <code>IGL_NO_ANTTWEAKBAR</code>) Last tested 1.16 (see
|
||||
<code>libigl/external/AntTweakBar</code>)</li>
|
||||
<li>GLEW Windows and Linux</li>
|
||||
<li>OpenMP</li>
|
||||
<li>libpng libiglpng extra only</li>
|
||||
<li>Mosek libiglmosek extra only</li>
|
||||
<li>Matlab libiglmatlab extra only</li>
|
||||
<li>boost libiglboost, libiglcgal extra only</li>
|
||||
<li>SSE/AVX libiglsvd3x3 extra only</li>
|
||||
<li>CGAL libiglcgal extra only
|
||||
|
||||
<ul>
|
||||
<li>boost</li>
|
||||
<li>gmp</li>
|
||||
<li>mpfr</li>
|
||||
</ul></li>
|
||||
<li>CoMiSo libcomiso extra only</li>
|
||||
</ul>
|
||||
|
||||
<h3 id="optionalincludedinexternal">Optional (included in external/) </h3>
|
||||
|
||||
<ul>
|
||||
<li>TetGen libigltetgen extra only</li>
|
||||
<li>Embree libiglembree extra only</li>
|
||||
<li>tinyxml2 libiglxml extra only</li>
|
||||
<li>glfw libviewer extra only</li>
|
||||
<li>LIM liblim extra only</li>
|
||||
</ul>
|
||||
|
||||
</body>
|
||||
</html>
|
||||
|
||||
@@ -20,9 +20,14 @@ option(LIBIGL_WITH_MATLAB "Use Matlab" "${MATLAB_FOUND}")
|
||||
option(LIBIGL_WITH_MOSEK "Use MOSEK" "${MOSEK_FOUND}")
|
||||
### End
|
||||
|
||||
|
||||
|
||||
### Adding libIGL: choose the path to your local copy libIGL
|
||||
include(libigl)
|
||||
|
||||
### Download data
|
||||
igl_download_tutorial_data()
|
||||
|
||||
### Output directories
|
||||
if(MSVC)
|
||||
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_DEBUG ${CMAKE_BINARY_DIR})
|
||||
|
||||
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Reference in New Issue
Block a user