diff options
author | vrouvrea <vrouvrea@636b058d-ea47-450e-bf9e-a15bfbe3eedb> | 2015-11-27 17:05:22 +0000 |
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committer | vrouvrea <vrouvrea@636b058d-ea47-450e-bf9e-a15bfbe3eedb> | 2015-11-27 17:05:22 +0000 |
commit | c79ddda239336378d50255ef99ea6c34ceefbb47 (patch) | |
tree | f810cbc7d032f301194839b044aa0a98af9d7bcc /src/Alpha_complex/example/Alpha_complex_from_points.cpp | |
parent | b3c3e0d75c717dbd94caf96c9ba827fb17b4d5b3 (diff) |
After doc review
git-svn-id: svn+ssh://scm.gforge.inria.fr/svnroot/gudhi/branches/alphashapes@931 636b058d-ea47-450e-bf9e-a15bfbe3eedb
Former-commit-id: 578da0e6fff453560e666e8f00147f9e10cb6de6
Diffstat (limited to 'src/Alpha_complex/example/Alpha_complex_from_points.cpp')
-rw-r--r-- | src/Alpha_complex/example/Alpha_complex_from_points.cpp | 36 |
1 files changed, 26 insertions, 10 deletions
diff --git a/src/Alpha_complex/example/Alpha_complex_from_points.cpp b/src/Alpha_complex/example/Alpha_complex_from_points.cpp index e460f177..62f594d1 100644 --- a/src/Alpha_complex/example/Alpha_complex_from_points.cpp +++ b/src/Alpha_complex/example/Alpha_complex_from_points.cpp @@ -6,34 +6,50 @@ #include <string> #include <vector> -// to construct a Delaunay_triangulation from a OFF file -#include "gudhi/Delaunay_triangulation_off_io.h" -#include "gudhi/Alpha_complex.h" +#include <gudhi/Alpha_complex.h> -typedef CGAL::Epick_d< CGAL::Dynamic_dimension_tag > Kernel; +typedef CGAL::Epick_d< CGAL::Dimension_tag<2> > Kernel; typedef Kernel::Point_d Point; typedef std::vector<Point> Vector_of_points; +void usage(char * const progName) { + std::cerr << "Usage: " << progName << " alpha_square_max_value" << std::endl; + std::cerr << " i.e.: " << progName << " 32.0" << std::endl; + exit(-1); // ----- >> +} + int main(int argc, char **argv) { + if (argc != 2) { + std::cerr << "Error: Number of arguments (" << argc << ") is not correct" << std::endl; + usage(argv[0]); + } + + double alpha_square_max_value = atof(argv[1]); + // ---------------------------------------------------------------------------- // Init of a list of points // ---------------------------------------------------------------------------- Vector_of_points points; - std::vector<double> coords = { 0.0, 0.0, 0.0, 1.0 }; + std::vector<double> coords = { 1.0, 1.0 }; + points.push_back(Point(coords.begin(), coords.end())); + coords = { 7.0, 0.0 }; + points.push_back(Point(coords.begin(), coords.end())); + coords = { 4.0, 6.0 }; + points.push_back(Point(coords.begin(), coords.end())); + coords = { 9.0, 6.0 }; points.push_back(Point(coords.begin(), coords.end())); - coords = { 0.0, 0.0, 1.0, 0.0 }; + coords = { 0.0, 14.0 }; points.push_back(Point(coords.begin(), coords.end())); - coords = { 0.0, 1.0, 0.0, 0.0 }; + coords = { 2.0, 19.0 }; points.push_back(Point(coords.begin(), coords.end())); - coords = { 1.0, 0.0, 0.0, 0.0 }; + coords = { 9.0, 17.0 }; points.push_back(Point(coords.begin(), coords.end())); // ---------------------------------------------------------------------------- // Init of an alpha complex from the list of points // ---------------------------------------------------------------------------- - double max_alpha_square_value = 1e10; - Gudhi::alphacomplex::Alpha_complex<Kernel> alpha_complex_from_points(points, max_alpha_square_value); + Gudhi::alphacomplex::Alpha_complex<Kernel> alpha_complex_from_points(points, alpha_square_max_value); // ---------------------------------------------------------------------------- // Display information about the alpha complex |