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Brad Barber authored
Qhull 2020.1 enhances the C++ interface with QhullUser and support for Voronoi diagrams. See user_eg3 for C++ examples. Qhull builds support pkg-config, SONAME, DESTDIR for staged installs, PREFIX, QhullExport, and CMAKE_CURRENT_SOURCE_DIR. * QhullLinkedList::const_iterator fixed operator->(). * RoadError::stringGlobalLog returns std::string instead of const char * * QhullUser is a user-modifiable interface to Qhull using a custom qh_fprintf. Option '[Ta](http://www.qhull.org/html/qh-optt.htm#Ta)' displays the message codes for Qhull output. qh_fprintf can trap these codes and transfer the data to QhullUser. * user_eg3 adds examples for convex hulls, Delaunay triangulations, and Voronoi diagrams. The examples can take their input from rbox or qhull. 'user_eg3 rbox' preserves the dimension for multiple options. * The new C++ methods are Qhull::isDelaunay, Qhull::prepareVoronoi, QhullFacet::visitId, QhullFacet::nextFacet2d, QhullFacet::setFacetT, QhullRidge::qh, QhullRidge::setRidgeT, and QhullVertex::setVertexT. * qh_order_vertexneighbors [io_r.c] orders facet neighbors of a vertex by 2-d (orientation), 3-d (adjacency), or n-d (f.visitid,id). * qh_nextfacet2d [poly2_r.c] returns 2-d facets and vertices in counter-clockwise order. * Qhull install adds pkg-config support via CMakeLists.txt and Makefile. The template is qhull.pc.in. * CMakeLists.txt increases SOVERSION to 8.0. Makefile reads SOVERSION from CMakeLists and creates a symbolic link for SONAME. Qhull 2019.1 had ABI breakage that was not indicated by its SOVERSION 7. * CMakeLists.txt creates QhullExport/ for QhullConfig. CMakeLists sets POSITION_INDEPENDENT_CODE for libqhullcpp. * Makefile supports GNU Makefile standards for DESTDIR and PREFIX. Previous Qhull Makefiles used DESTDIR instead of PREFIX. * By default, Makefile compiles without -m32 and with -fpic. Use variables M32 and FPIC for 32-bit builds without -fpic on 64-bit hosts. This reduces memory requirements and may be faster on older processors. * The -lm linker flag moved to the end of the linker command.
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This project is licensed under the Qhull License.
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