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2019.1b94cff07 · ·
Qhull 2019.1 2019/06/21 (7.3.2) released Qhull 2019.1 contains bug fixes and improvements to logging, error reporting, and merging. - Fixed fifty bugs, including initialization bugs and memory corruption bugs in qh_readpoints and qh_option. See Bugs and Changes.txt. - New option 'TAn' stops Qhull after adding n points. - New option 'Tf' flushes qh_fprintf. Use 'Tf' when debugging segfaults. - New options '--help', '-?', and '--' display a short help message. Under Git for Windows or MSYS2, 'qhull' waits for stdin. - Option 'TP-1' turns on tracing after qh_buildhull and qh_postmerge complete. It traces qh_check_maxout, qh_prepare_output, qh_triangulate, and qh_voronoi_center - Options 'TI' and 'TO' do not require a space before the filename. - An unknown Qhull option is an error. It was a warning. Override with option 'Qw'. - Short or long input to Qhull is an error. It was a warning. Override with option 'Qa'. - Documentation encourages the use of joggled input. Joggled input is less precise than facet merging, but it cannot incur merge errors for degenerate input. - Documentation refers to 'dupridge' instead of 'duplicate ridge'. A dupridge is an erroneous ridge between four or more facets. - Fixed documentation for qh_findbestfacet. Delaunay triangulations may return an adjacent triangle [F. Drielsma]. - CMake: export QhullTargets for config.cmake.in and find_package [tamasmeszaros] - The C++ interface includes new methods, hasNext() and hasPrevious(), for QhullFacet and QhullVertex. - Test scripts qtest.sh and q_benchmark help with logging and optimizing Qhull, particularly for intermittent errors and bad cases for Qhull. Fixed bugs in Qhull 2015.2 (see Changes.txt for the full list) - qh_buildcone_onlygood ('Qg') corrupted memory if it called qh_delfacet. - qh_check_maxout did not include qh.DISTround when checking f.maxoutside - qh_distround did not acount for 'Rn' (random roundoff) in option 'QJn' - qh_findbestfacet should document that it may return an adjacent triangle for Delaunay triangulations [F. Drielsma] - qh_findfacet_all should not search visible facets or f.upperdelaunay facets [P. Virtanen, S. Dominguez, J.Arkin] - qh_findgood may report a bad facet for qh.GOODvertex ('QVn'). Restrict the search to good facets. - qh_freebuild deleted unattached ridges, leading to a double delete - qh_initial_hull tested 'maybe flipped' instead of 'clearly flipped'. As a result facets could be incorrectly oriented, leading immediately to 'Only 4 facets remain' [S. Caron, P. Virtanen, D. Sterratt, others] - qh_initstatistics was missing initialization. As a result, the final qh_checkoutput may be skipped. - qh_initstatistics cannot use qh_fprintf to report errors. Use qh_fprintf_stderr - qh_maxsimplex did not detect nearly flat simplices except for the last vertex. It assumed the max coordinate was approximately 1. As a result, Qhull reported false narrow hulls or false low dimensional inputs. [J.R. Roussel, D. Sterratt] - qh_option could overflow the qh.qhull_options buffer - qh_partitionpoint could leave an outside point before qh.next_facet, leading to a skipped point. - qh_stddev was incorrect. It should be sqrt of absolute value. - 'Qbb' scaled the last coordinate to qh.MAXwidth causing loss of precision. It should be qh.MAXabs_coord. - 'rbox' and 'user_eg3' returned non-zero exit status for their help prompt. Should be 0. - 'rbox Cn,r,m' does not produce points for 'rbox r' - An error in qh_initqhull_start2 could loop forever. Need to set qh.NOerrexit - Do not call qh_check_points ('Tv') if reporting an error and qh.FORCEoutput ('Po') - If 'd' or 'v' was used with 'H', memory corruption occurred. Should be disallowed. - Improved searching of coplanar facets by qh_findbesthorizon. - Options 'Pdk' and 'Pdk' always returned the closest facet. This should only occur with option 'Pg'. - PointCoordinates::appendPoints should not require whitespace after a point - Setting qh.MINoutside could lead to verification ('Tv') failures. Fixed by setting qh.KEEPnearinside and calling qh_partitionpoint in qh_partitionall -
v7.3.2b94cff07 · ·
Qhull 2019.1 2019/06/21 (7.3.2) released Qhull 2019.1 contains bug fixes and improvements to logging, error reporting, and merging. - Fixed fifty bugs, including initialization bugs and memory corruption bugs in qh_readpoints and qh_option. See Bugs and Changes.txt. - New option 'TAn' stops Qhull after adding n points. - New option 'Tf' flushes qh_fprintf. Use 'Tf' when debugging segfaults. - New options '--help', '-?', and '--' display a short help message. Under Git for Windows or MSYS2, 'qhull' waits for stdin. - Option 'TP-1' turns on tracing after qh_buildhull and qh_postmerge complete. It traces qh_check_maxout, qh_prepare_output, qh_triangulate, and qh_voronoi_center - Options 'TI' and 'TO' do not require a space before the filename. - An unknown Qhull option is an error. It was a warning. Override with option 'Qw'. - Short or long input to Qhull is an error. It was a warning. Override with option 'Qa'. - Documentation encourages the use of joggled input. Joggled input is less precise than facet merging, but it cannot incur merge errors for degenerate input. - Documentation refers to 'dupridge' instead of 'duplicate ridge'. A dupridge is an erroneous ridge between four or more facets. - Fixed documentation for qh_findbestfacet. Delaunay triangulations may return an adjacent triangle [F. Drielsma]. - CMake: export QhullTargets for config.cmake.in and find_package [tamasmeszaros] - The C++ interface includes new methods, hasNext() and hasPrevious(), for QhullFacet and QhullVertex. - Test scripts qtest.sh and q_benchmark help with logging and optimizing Qhull, particularly for intermittent errors and bad cases for Qhull. Fixed bugs in Qhull 2015.2 (see Changes.txt for the full list) - qh_buildcone_onlygood ('Qg') corrupted memory if it called qh_delfacet. - qh_check_maxout did not include qh.DISTround when checking f.maxoutside - qh_distround did not acount for 'Rn' (random roundoff) in option 'QJn' - qh_findbestfacet should document that it may return an adjacent triangle for Delaunay triangulations [F. Drielsma] - qh_findfacet_all should not search visible facets or f.upperdelaunay facets [P. Virtanen, S. Dominguez, J.Arkin] - qh_findgood may report a bad facet for qh.GOODvertex ('QVn'). Restrict the search to good facets. - qh_freebuild deleted unattached ridges, leading to a double delete - qh_initial_hull tested 'maybe flipped' instead of 'clearly flipped'. As a result facets could be incorrectly oriented, leading immediately to 'Only 4 facets remain' [S. Caron, P. Virtanen, D. Sterratt, others] - qh_initstatistics was missing initialization. As a result, the final qh_checkoutput may be skipped. - qh_initstatistics cannot use qh_fprintf to report errors. Use qh_fprintf_stderr - qh_maxsimplex did not detect nearly flat simplices except for the last vertex. It assumed the max coordinate was approximately 1. As a result, Qhull reported false narrow hulls or false low dimensional inputs. [J.R. Roussel, D. Sterratt] - qh_option could overflow the qh.qhull_options buffer - qh_partitionpoint could leave an outside point before qh.next_facet, leading to a skipped point. - qh_stddev was incorrect. It should be sqrt of absolute value. - 'Qbb' scaled the last coordinate to qh.MAXwidth causing loss of precision. It should be qh.MAXabs_coord. - 'rbox' and 'user_eg3' returned non-zero exit status for their help prompt. Should be 0. - 'rbox Cn,r,m' does not produce points for 'rbox r' - An error in qh_initqhull_start2 could loop forever. Need to set qh.NOerrexit - Do not call qh_check_points ('Tv') if reporting an error and qh.FORCEoutput ('Po') - If 'd' or 'v' was used with 'H', memory corruption occurred. Should be disallowed. - Improved searching of coplanar facets by qh_findbesthorizon. - Options 'Pdk' and 'Pdk' always returned the closest facet. This should only occur with option 'Pg'. - PointCoordinates::appendPoints should not require whitespace after a point - Setting qh.MINoutside could lead to verification ('Tv') failures. Fixed by setting qh.KEEPnearinside and calling qh_partitionpoint in qh_partitionall -