From 5661593ab3d8f7bd4cda867fc0348c86d26106e3 Mon Sep 17 00:00:00 2001 From: ROUVREAU Vincent Date: Wed, 5 Jun 2019 07:57:54 +0200 Subject: Fix #20: Add OFF section in file format and all documents target to it instead of geomview.org documentation. Modify data/points/alphacomplexdoc.off in dimension 3 to be used as an example for OFF section in file format. --- src/common/doc/file_formats.h | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'src/common/doc') diff --git a/src/common/doc/file_formats.h b/src/common/doc/file_formats.h index 23214e25..235296d3 100644 --- a/src/common/doc/file_formats.h +++ b/src/common/doc/file_formats.h @@ -29,6 +29,32 @@ namespace Gudhi { \tableofcontents + \section FileFormatsOFF OFF file format + + OFF files must be conform to format described here: http://www.geomview.org/docs/html/OFF.html + + OFF files are mainly used as point cloud inputs. Here is an example of 7 points in a 3-dimensional space. As edges and + faces are not used for point set, there is no need to specify them (just set their numbers to 0): + + \include points/alphacomplexdoc.off + + For dimensions bigger than 3, the dimension can be set like here: + \verbatim + # Dimension is no more 3 + nOFF + # dimension 4 - 7 vertices - 0 face - 0 edge + 4 7 0 0 + # Point set: + 1.0 1.0 0.0 0.0 + 7.0 0.0 0.0 0.0 + 4.0 6.0 0.0 0.0 + 9.0 6.0 0.0 0.0 + 0.0 14.0 0.0 0.0 + 2.0 19.0 0.0 0.0 + 9.0 17.0 0.0 0.0 + \endverbatim + + \section FileFormatsPers Persistence Diagram Such a file, whose extension is usually `.pers`, contains a list of persistence intervals.
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