Olena-patches July 2010

olena-patches@lrde.epita.fr

6 participants
122 discussions

last-svn-commit-194-gabe6735 configure.ac: Configure milena/tests/io/vtk/Makefile.

by Roland Levillain

--- ChangeLog | 4 ++++ configure.ac | 1 + 2 files changed, 5 insertions(+), 0 deletions(-) diff --git a/ChangeLog b/ChangeLog index e0d0eef..0d1a5a8 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,7 @@ +2010-06-24 Roland Levillain <roland(a)lrde.epita.fr> + + * configure.ac: Configure milena/tests/io/vtk/Makefile. + 2010-07-15 Roland Levillain <roland(a)lrde.epita.fr> Configure tests in mesh-segm-skel apps. diff --git a/configure.ac b/configure.ac index 62a95a0..6fc5465 100644 --- a/configure.ac +++ b/configure.ac @@ -413,6 +413,7 @@ AC_CONFIG_FILES([ milena/tests/io/ppm/Makefile milena/tests/io/ppms/Makefile milena/tests/io/tiff/Makefile + milena/tests/io/vtk/Makefile milena/tests/labeling/Makefile milena/tests/linear/Makefile milena/tests/linear/local/Makefile -- 1.5.6.5

14 years, 4 months

last-svn-commit-193-g48804b2 Exercise mln::io::vtk::save.

by Roland Levillain

* tests/io/vtk/save.cc: New. * tests/io/vtk/Makefile.am: New. * tests/io/Makefile.am (SUBDIRS): Add vtk. --- milena/ChangeLog | 8 +++ milena/tests/io/Makefile.am | 3 +- milena/tests/io/{pbm => vtk}/Makefile.am | 16 ++--- milena/tests/io/vtk/save.cc | 97 ++++++++++++++++++++++++++++++ 4 files changed, 114 insertions(+), 10 deletions(-) copy milena/tests/io/{pbm => vtk}/Makefile.am (74%) create mode 100644 milena/tests/io/vtk/save.cc diff --git a/milena/ChangeLog b/milena/ChangeLog index b90334b..ab27b56 100644 --- a/milena/ChangeLog +++ b/milena/ChangeLog @@ -1,5 +1,13 @@ 2010-06-24 Roland Levillain <roland(a)lrde.epita.fr> + Exercise mln::io::vtk::save. + + * tests/io/vtk/save.cc: New. + * tests/io/vtk/Makefile.am: New. + * tests/io/Makefile.am (SUBDIRS): Add vtk. + +2010-06-24 Roland Levillain <roland(a)lrde.epita.fr> + Start a VTK output for complex-based images. * mln/io/vtk/save.hh: New. diff --git a/milena/tests/io/Makefile.am b/milena/tests/io/Makefile.am index bd6c0a4..41dce69 100644 --- a/milena/tests/io/Makefile.am +++ b/milena/tests/io/Makefile.am @@ -1,4 +1,4 @@ -# Copyright (C) 2007, 2008, 2009 EPITA Research and Development +# Copyright (C) 2007, 2008, 2009, 2010 EPITA Research and Development # Laboratory (LRDE). # # This file is part of Olena. @@ -32,6 +32,7 @@ SUBDIRS = \ pnm \ ppm \ ppms \ + vtk \ fld ## ------------------------------------------------- ## diff --git a/milena/tests/io/pbm/Makefile.am b/milena/tests/io/vtk/Makefile.am similarity index 74% copy from milena/tests/io/pbm/Makefile.am copy to milena/tests/io/vtk/Makefile.am index 690c895..3467f78 100644 --- a/milena/tests/io/pbm/Makefile.am +++ b/milena/tests/io/vtk/Makefile.am @@ -1,5 +1,4 @@ -# Copyright (C) 2007, 2009, 2010 EPITA Research and Development -# Laboratory (LRDE). +# Copyright (C) 2010 EPITA Research and Development Laboratory (LRDE). # # This file is part of Olena. # @@ -17,15 +16,14 @@ include $(top_srcdir)/milena/tests/tests.mk -check_PROGRAMS = \ - pbm \ - pbm_ascii +check_PROGRAMS = save -pbm_SOURCES = pbm.cc -pbm_ascii_SOURCES = pbm_ascii.cc +save_SOURCES = save.cc TESTS = $(check_PROGRAMS) MOSTLYCLEANFILES = \ - pbm-out.pbm \ - pbm_ascii-out.pbm + save-tetrahedron-bool.vtk \ + save-tetrahedron-int_u8.vtk \ + save-tetrahedron-float.vtk \ + save-tetrahedron-rgb8.vtk diff --git a/milena/tests/io/vtk/save.cc b/milena/tests/io/vtk/save.cc new file mode 100644 index 0000000..908636b --- /dev/null +++ b/milena/tests/io/vtk/save.cc @@ -0,0 +1,97 @@ +// Copyright (C) 2010 EPITA Research and Development Laboratory (LRDE) +// +// This file is part of Olena. +// +// Olena is free software: you can redistribute it and/or modify it under +// the terms of the GNU General Public License as published by the Free +// Software Foundation, version 2 of the License. +// +// Olena is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +// General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with Olena. If not, see <http://www.gnu.org/licenses/>. +// +// As a special exception, you may use this file as part of a free +// software project without restriction. Specifically, if other files +// instantiate templates or use macros or inline functions from this +// file, or you compile this file and link it with other files to produce +// an executable, this file does not by itself cause the resulting +// executable to be covered by the GNU General Public License. This +// exception does not however invalidate any other reasons why the +// executable file might be covered by the GNU General Public License. + +#include <mln/io/off/load.hh> +#include <mln/io/vtk/save.hh> + +#include <mln/literal/colors.hh> + +#include "tests/data.hh" + + +template <typename I> +inline +I +make_image(const mln::bin_2complex_image3df& bin_ima, + const std::vector<mln_value(I)>& values) +{ + I ima; + mln::initialize(ima, bin_ima); + mln_piter(I) p(ima.domain()); + unsigned i = 0; + for_all(p) + ima(p) = values[i++ % values.size()]; + return ima; +} + + +int +main() +{ + using namespace mln; + + // Boolean values. + typedef bin_2complex_image3df bin_ima_t; + bin_ima_t bin_ima; + /* FIXME: It would be better not to depend on the OFF file loader to + create the complex-based image, to be saved as a VTK file; build + this image by hand instead? */ + io::off::load(bin_ima, MLN_MESH_DIR "/tetrahedron.off"); + + io::vtk::save(bin_ima, "save-tetrahedron-bool.vtk"); + + unsigned nfaces = bin_ima.domain().cplx().nfaces(); + + // `int_u8' values. + { + std::vector<value::int_u8> values(nfaces); + for (unsigned i = 0; i < nfaces; ++i) + values[i] = mln_max(value::int_u8) * i / nfaces; + io::vtk::save(make_image<int_u8_2complex_image3df>(bin_ima, values), + "save-tetrahedron-int_u8.vtk"); + } + + // Floating-point values. + { + std::vector<float> values(nfaces); + for (unsigned i = 0; i < nfaces; ++i) + values[i] = mln_max(float) / nfaces * i; + io::vtk::save(make_image<float_2complex_image3df>(bin_ima, values), + "save-tetrahedron-float.vtk"); + } + + // `rgb8' values. + { + value::rgb8 colors_array[] = + { literal::red, literal::green, literal::blue, literal::brown, + literal::lime, literal::orange, literal::pink, literal::purple, + literal::teal, literal::violet, literal::cyan, literal::magenta, + literal::yellow, literal::olive }; + const unsigned colors_size = sizeof(colors_array) / sizeof(value::rgb8); + std::vector<value::rgb8> colors (colors_array, colors_array + colors_size); + io::vtk::save(make_image<rgb8_2complex_image3df>(bin_ima, colors), + "save-tetrahedron-rgb8.vtk"); + } +} -- 1.5.6.5

14 years, 4 months

last-svn-commit-192-g406da43 Start a VTK output for complex-based images.

by Roland Levillain

* mln/io/vtk/save.hh: New. --- milena/ChangeLog | 6 + milena/mln/io/vtk/save.hh | 623 +++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 629 insertions(+), 0 deletions(-) create mode 100644 milena/mln/io/vtk/save.hh diff --git a/milena/ChangeLog b/milena/ChangeLog index 72bad9b..b90334b 100644 --- a/milena/ChangeLog +++ b/milena/ChangeLog @@ -1,3 +1,9 @@ +2010-06-24 Roland Levillain <roland(a)lrde.epita.fr> + + Start a VTK output for complex-based images. + + * mln/io/vtk/save.hh: New. + 2010-07-28 Roland Levillain <roland(a)lrde.epita.fr> Disable the last test case in test-mesh-complex-pinv-curv-skel. diff --git a/milena/mln/io/vtk/save.hh b/milena/mln/io/vtk/save.hh new file mode 100644 index 0000000..10c3f0b --- /dev/null +++ b/milena/mln/io/vtk/save.hh @@ -0,0 +1,623 @@ +// Copyright (C) 2008, 2009, 2010 EPITA Research and Development +// Laboratory (LRDE) +// +// This file is part of Olena. +// +// Olena is free software: you can redistribute it and/or modify it under +// the terms of the GNU General Public License as published by the Free +// Software Foundation, version 2 of the License. +// +// Olena is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +// General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with Olena. If not, see <http://www.gnu.org/licenses/>. +// +// As a special exception, you may use this file as part of a free +// software project without restriction. Specifically, if other files +// instantiate templates or use macros or inline functions from this +// file, or you compile this file and link it with other files to produce +// an executable, this file does not by itself cause the resulting +// executable to be covered by the GNU General Public License. This +// exception does not however invalidate any other reasons why the +// executable file might be covered by the GNU General Public License. + +#ifndef MLN_IO_VTK_SAVE_HH +# define MLN_IO_VTK_SAVE_HH + +/// \file +/// Input saving function for VTK files. +/// +/// \see http://www.vtk.org/VTK/img/file-formats.pdf +/// \see http://dunne.uni-hd.de/VisuSimple/documents/vtkfileformat.html + +# include <cstdlib> + +# include <iostream> +# include <fstream> +# include <sstream> + +# include <string> + +# include <mln/core/alias/complex_image.hh> +# include <mln/core/image/complex_neighborhoods.hh> +# include <mln/core/image/complex_neighborhood_piter.hh> + + +namespace mln +{ + + namespace io + { + + namespace vtk + { + + /** \brief Save a (binary) VTK image into a complex image. + + \param[in] ima The image to save. + \param[in] filename The name of the file where to save the image. + + The image is said binary since data represent only the + existence of faces. */ + void save(const bin_2complex_image3df& ima, + const std::string& filename); + + /** \brief Save an 8-bit grey-level VTK image into a complex image. + + \param[in] ima The image to save. + \param[in] filename The name of the file where to save the image. + + Only data is attached to 2-faces is saved; the VTK file + cannot store data attached to faces of other dimensions. */ + void save(const int_u8_2complex_image3df& ima, + const std::string& filename); + + /** \brief Save a floating-point value grey-level VTK image into + a complex image. + + \param[in] ima The image to save. + \param[in] filename The name of the file where to save the image. + + Only data is attached to 2-faces is saved; the VTK file + cannot store data attached to faces of other dimensions. */ + void save(const float_2complex_image3df& ima, + const std::string& filename); + + /** \brief Save a 3x8-bit RGB (color) VTK image into a complex image. + + \param[in] ima The image to save. + \param[in] filename The name of the file where to save the image. + + Only data is attached to 2-faces is saved; the VTK file + cannot store data attached to faces of other dimensions. */ + void save(const rgb8_2complex_image3df& ima, + const std::string& filename); + + + namespace internal + { + + template <typename I, typename E> + struct vtk_saver : public Object<E> + { + /// Type of the image. + typedef I image; + + /// Type of the values. + typedef mln_value(I) value; + + /// Dimension of the built complex. + static const unsigned D = 2; + + /// \brief Constructor, with static checks. + vtk_saver(); + + /// Save an image \a ima into \a filename. + void operator()(const I& ima, const std::string& filename) const; + + protected: + /// Helper factoring the task of writing scalar data + /// associated to faces. + void write_scalar_data(std::ostream& ostr, const image& ima, + const std::string& data_type) const; + }; + + + struct bin_vtk_saver + : public vtk_saver< bin_2complex_image3df, bin_vtk_saver > + { + /// \brief Save face data. + void write_face_data(std::ostream& ostr, const image& ima) const; + }; + + struct int_u8_vtk_saver + : public vtk_saver< int_u8_2complex_image3df, int_u8_vtk_saver > + { + /// \brief Save face data. + void write_face_data(std::ostream& ostr, const image& ima) const; + }; + + + struct float_vtk_saver + : public vtk_saver< float_2complex_image3df, float_vtk_saver > + { + /// \brief Save face data. + void write_face_data(std::ostream& ostr, const image& ima) const; + }; + + + struct rgb8_vtk_saver + : public vtk_saver< rgb8_2complex_image3df, rgb8_vtk_saver > + { + /// \brief Save face data. + void write_face_data(std::ostream& ostr, const image& ima) const; + }; + + } // end of namespace mln::io::vtk::internal + + + +# ifndef MLN_INCLUDE_ONLY + + /*----------. + | Facades. | + `----------*/ + + void + save(const bin_2complex_image3df& ima, const std::string& filename) + { + trace::entering("mln::io::vtk::save"); + internal::bin_vtk_saver()(ima, filename); + trace::exiting("mln::io::vtk::save"); + } + + void + save(const int_u8_2complex_image3df& ima, const std::string& filename) + { + trace::entering("mln::io::vtk::save"); + internal::int_u8_vtk_saver()(ima, filename); + trace::exiting("mln::io::vtk::save"); + } + + void + save(const float_2complex_image3df& ima, const std::string& filename) + { + trace::entering("mln::io::vtk::save"); + internal::float_vtk_saver()(ima, filename); + trace::exiting("mln::io::vtk::save"); + } + + void + save(const rgb8_2complex_image3df& ima, const std::string& filename) + { + trace::entering("mln::io::vtk::save"); + internal::rgb8_vtk_saver()(ima, filename); + trace::exiting("mln::io::vtk::save"); + } + + + /*-------------------------. + | Actual implementations. | + `-------------------------*/ + + // -------- // + // Canvas. // + // -------- // + + namespace internal + { + + template <typename I, typename E> + vtk_saver<I, E>::vtk_saver() + { + // Concept checking. + void (E::*m1)(std::ostream&, const I&) const = + &E::write_face_data; + m1 = 0; + } + + + template <typename I, typename E> + void + vtk_saver<I, E>::operator()(const I& ima, + const std::string& filename) const + { + const std::string me = "mln::io::vtk::save"; + + std::ofstream ostr(filename.c_str()); + if (!ostr) + { + std::cerr << me << ": `" << filename << "' invalid file." + << std::endl; + /* FIXME: Too violent. We should allow the use of + exceptions, at least to have Milena's code behave + correctly in interpreted environments (std::exit() or + std::abort() causes the termination of a Python + interpreter, for instance!). */ + std::exit(1); + } + + /*---------. + | Header. | + `---------*/ + + /* ``The legacy VTK file formats consist of five basic + parts.'' */ + + /* ``1. The first part is the file version and + identifier. This part contains the single line: + + # vtk DataFile Version x.x. + + This line must be exactly as shown with the + exception of the version number x.x, which will vary + with different releases of VTK. (Note: the current + version number is 3.0. Version 1.0 and 2.0 files are + compatible with version 3.0 files.)'' */ + ostr << "# vtk DataFile Version 2.0" << std::endl; + + /* ``2. The second part is the header. The header consists + of a character string terminated by end-of-line + character `\n'. The header is 256 characters + maximum. The header can be used to describe the data + and include any other pertinent information.'' */ + ostr << "Generated by Milena 1.0 http://olena.lrde.epita.fr" + << std::endl; + + /* ``3. The next part is the file format. The file format + describes the type of file, either ASCII or + binary. On this line the single word ASCII or BINARY + must appear.'' */ + ostr << "ASCII" << std::endl; + + /*-------. + | Data. | + `-------*/ + + /* ``4. The fourth part is the dataset structure. The + geometry part describes the geometry and topology of + the dataset. This part begins with a line containing + the keyword DATASET followed by a keyword describing + the type of dataset. Then, depending upon the type + of dataset, other keyword/data combinations define + the actual data.'' + + [...] + + Dataset Format. The Visualization Toolkit supports + five different dataset formats: structured points, + structured grid, rectilinear grid, unstructured + grid, and polygonal data.'' */ + + ostr << "DATASET POLYDATA" << std::endl << std::endl; + + // --------- // + // Complex. // + // --------- // + + typedef mln_geom(I) G; + + /* ``* Polygonal Data + The polygonal dataset consists of arbitrary + combinations of surface graphics primitives + vertices (and polyvertices), lines (and + polylines), polygons (of various types), and + triangle strips. Polygonal data is defined by + the POINTS, VERTICES, LINES, POLYGONS, or + TRIANGLE_STRIPS sections. The POINTS definition + is the same as we saw for structured grid + datasets.'' */ + + // ---------------------------- // + // Geometry (point locations). // + // ---------------------------- // + + ostr << "POINTS " + << ima.domain().cplx().template nfaces_of_static_dim<0>() + << " float" << std::endl; + // Iterate on 0-faces (vertices). + p_n_faces_fwd_piter<D, G> v(ima.domain(), 0); + for_all(v) + { + mln_invariant(v.to_site().size() == 1); + ostr << v.to_site().front()[0] << ' ' + << v.to_site().front()[1] << ' ' + << v.to_site().front()[2] << std::endl; + } + ostr << std::endl; + + /* ``The VERTICES, LINES, POLYGONS, or + TRIANGLE_STRIPS keywords define the polygonal + dataset topology. Each of these keywords + requires two parameters: the number of cells `n' + and the size of the cell list `size'. The cell + list size is the total number of integer values + required to represent the list (i.e., sum of + `numPoints' and connectivity indices over each + cell). None of the keywords VERTICES, LINES, + POLYGONS, or TRIANGLE_STRIPS is required.'' */ + + // ---------- // + // Vertices. // + // ---------- // + + /* We do not use + + ima.domain().cplx().template nfaces_of_static_dim<N>() + + to get the number of N-faces, since the image may be + masked, and exhibit less N-faces than its underlying + complex. Iterating on the N-faces is safer. */ + /* FIXME: Is there anything faster? See what the interface + of the (morphed) image can provide. */ + unsigned nvertices = 0; + for_all(v) + ++nvertices; + + if (nvertices > 0) + { + ostr << "VERTICES " << nvertices << ' ' + /* Each vertex requires two numbers: the cardinal of + its ends (which is always 1) and the indices of the + point among the POINTS section. Hence the total + number of values in the VERTEX section is + nvertices * 2. */ + << nvertices * 2 << std::endl; + + for_all(v) + ostr << "1 " << v.unproxy_().face().face_id() << std::endl; + ostr << std::endl; + } + + // ------- // + // Edges. // + // ------- // + + // Same comment as above about the count of N-faces. + unsigned nedges = 0; + p_n_faces_fwd_piter<D, G> e(ima.domain(), 1); + for_all (e) + ++nedges; + + if (nedges > 0) + { + ostr << "LINES " << nedges << ' ' + /* Each edge requires three numbers: the cardinal of + its ends (which is always 2) and the indices of + these ends among the POINTS section. Hence the + total number of values in the LINES section is + nedges * 3. */ + << nedges * 3 << std::endl; + + // Vertices adjacent to edges. + typedef complex_lower_neighborhood<D, G> adj_vertices_nbh_t; + adj_vertices_nbh_t adj_vertices_nbh; + mln_niter(adj_vertices_nbh_t) adj_v(adj_vertices_nbh, e); + // Iterate on 1-faces (edges). + for_all (e) + { + ostr << "2"; + // Iterate on vertices (0-faces). + for_all (adj_v) + { + // FIXME: Accessing the face id is too complicated. + ostr << " " << adj_v.unproxy_().face().face_id(); + } + ostr << std::endl; + } + ostr << std::endl; + } + + // ---------- // + // Polygons. // + // ---------- // + + // Same comment as above about the count of N-faces. + unsigned npolygons = 0; + p_n_faces_fwd_piter<D, G> p(ima.domain(), 2); + for_all (p) + ++npolygons; + + if (npolygons > 0) + { + // A neighborhood where neighbors are the set of 0-faces + // transitively adjacent to the reference point. + typedef complex_m_face_neighborhood<D, G> nbh_t; + nbh_t nbh; + mln_fwd_niter(nbh_t) u(nbh, p); + /* FIXME: We should be able to pass this value (m) + either at the construction of the neighborhood or at + the construction of the iterator. */ + u.iter().set_m(0); + + /* Compute the number of values (`size') to be passed as + second parameter of the POLYGONS keyword. */ + unsigned polygons_size = 0; + // Iterate on polygons (2-face). + for_all(p) + { + unsigned nvertices = 0; + /* FIXME: There may be a faster way to do this (e.g., + the neighbordhood may provide a method returning + the number of P's neighbors. */ + // Iterate on transitively adjacent vertices (0-face). + for_all(u) + ++nvertices; + // The number of values describing this polygon P is + // the cardinal of its set of vertices (1 value) plus + // the NVERTICES indices of these vertices. + polygons_size += 1 + nvertices; + } + ostr << "POLYGONS " << npolygons << ' ' << polygons_size + << std::endl; + + /* Output polygons (one per line), with their number of + vertices and the indices of these vertices. */ + // Iterate on polygons (2-face). + for_all(p) + { + unsigned nvertices = 0; + std::ostringstream vertices; + // Iterate on transitively adjacent vertices (0-face). + for_all(u) + { + // FIXME: Likewise, this is a bit too long. + vertices << ' ' << u.unproxy_().face().face_id(); + ++nvertices; + } + ostr << nvertices << vertices.str() << std::endl; + } + ostr << std::endl; + } + + /* ``5. The final part describes the dataset attributes. + This part begins with the keywords POINT_DATA or + CELL_DATA,followed by an integer number specifying + the number of points or cells, respectively. (It + doesn't matter whether POINT_DATA or CELL_DATA comes + first.) Other keyword/data combinations then define + the actual dataset attribute values (i.e., scalars, + vectors, tensors, normals, texture coordinates, or + field data).'' */ + + unsigned nfaces = nvertices + nedges + npolygons; + if (nfaces > 0) + { + // We don't use POINT_DATA (to associate values to + // POINTs), since CELL_DATA is used to associate values + // to VERTICES, EDGES and POLYGONS. + ostr << "CELL_DATA " << nfaces << std::endl; + exact(this)->write_face_data(ostr, ima); + } + + ostr.close(); + } + + // ---------------- // + // Specific parts. // + // ---------------- // + + /* ``Dataset Attribute Format. The Visualization Toolkit + supports the following dataset attributes: scalars + (one to four components), vectors, normals, + texture coordinates (1D, 2D, and 3D), 3 x 3 + tensors, and field data. In addition, a lookup + table using the RGBA color specification, + associated with the scalar data, can be defined as + well. Dataset attributes are supported for both + points and cells. + Each type of attribute data has a `dataName' + associated with it. This is a character string + (without embedded whitespace) used to identify a + particular data. The `dataName' is used by the VTK + readers to extract data. As a result, more than + one attribute data of the same type can be + included in a file. For example, two different + scalar fields defined on the dataset points, + pressure and temperature, can be contained in the + same file. (If the appropriate dataName is not + specified in the VTK reader, then the first data + of that type is extracted from the file.) + + * Scalars + Scalar definition includes specification of a + lookup table. The definition of a lookup table + is optional. + + [...] + + SCALARS dataName dataType numComp + LOOKUP_TABLE tableName + s0 + s1 + ... + sn-1'' + + Note: values accepted by Paraview 3.8 for `dataType' are: + "bit", "char", "unsigned_char", "short", "unsigned_short", + "vtkidtype", "int", "unsigned_int", "long", + "unsigned_long", "vtktypeint64", "vtktypeuint64", "float", + "double", "string", "utf8_string" and "variant". */ + + /** \{ */ + template <typename I, typename E> + void + vtk_saver<I, E>::write_scalar_data(std::ostream& ostr, + const image& ima, + const std::string& data_type) const + { + ostr << "SCALARS values " << data_type << std::endl + << "LOOKUP_TABLE default" << std::endl; + // Iterate on all faces, dimension increasing. + mln_fwd_piter(image) p(ima.domain()); + for_all(p) + ostr << ima(p) << std::endl; + } + + + void + bin_vtk_saver::write_face_data(std::ostream& ostr, + const image& ima) const + { + write_scalar_data(ostr, ima, "bit"); + } + + void + int_u8_vtk_saver::write_face_data(std::ostream& ostr, + const image& ima) const + { + write_scalar_data(ostr, ima, "unsigned_char"); + } + + void + float_vtk_saver::write_face_data(std::ostream& ostr, + const image& ima) const + { + write_scalar_data(ostr, ima, "float"); + } + + /* ``The definition of color scalars (i.e., unsigned + char values directly mapped to color) varies + depending upon the number of values (`nValues') + per scalar. If the file format is ASCII, the + color scalars are defined using nValues float + values between (0,1). + + COLOR_SCALARS dataName nValues + c00 c01 ... c0(nValues-1) + c10 c11 ... c1(nValues-1) + ... + c(n-1)0 c(n-1)1 ... c(n-1)(nValues-1)'' */ + + void + rgb8_vtk_saver::write_face_data(std::ostream& ostr, + const image& ima) const + { + ostr << "COLOR_SCALARS values 4" << std::endl; + // Iterate on all faces, dimension increasing. + mln_fwd_piter_(image) p(ima.domain()); + for_all(p) + // RGBA values (with alpha channel always set to 1.0). + ostr << float(ima(p).red()) / mln_max(value::red_t) << ' ' + << float(ima(p).green()) / mln_max(value::green_t) << ' ' + << float(ima(p).blue()) / mln_max(value::blue_t) << ' ' + << 1.f + << std::endl; + } + /** \} */ + + } // end of namespace mln::io::vtk::internal + +# endif // ! MLN_INCLUDE_ONLY + + } // end of namespace mln::io::vtk + + } // end of namespace mln::io + +} // end of namespace mln + + +#endif // ! MLN_IO_VTK_SAVE_HH -- 1.5.6.5

14 years, 4 months

branch vtk-format updated: last-svn-commit-198-g1ff059f

by git＠lrde.epita.fr

This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "Olena, a generic and efficient image processing platform". The branch vtk-format has been updated discards ee991fc4a99fe93012acbad3f8c7d3bf1b4f456f (commit) discards 647086d10b3ce3881d4a38e88565fcd681b35416 (commit) discards 497b315b84f7c013b1f5204c96707040a500e4de (commit) discards 4de23eb55befa499b02d94e5c7efa8e5107fde85 (commit) discards 055e7e9b935eaa64c415a86d129c63b5690f68d6 (commit) via 1ff059f5bd239a640b62f51c995574dc409763d8 (commit) via 017a21724f24ae85eac87c3f232dc1cd95559e34 (commit) via ca5bbc85b1e9d1e6308009cb05c7dc5472f85b34 (commit) via 96628ac3375ac975182cdc77b4d3f3bdc576a508 (commit) via abe6735ae1da5c2fbc9f41afe58b1fa022828c85 (commit) via 48804b2fdca668cae3db96ad7dafa4342bbebbea (commit) via 406da43f0b5897327952a94e253eb5f95ba31256 (commit) via e5a9aec0a6c54affaeb106da5da05ea4118be2f6 (commit) This update added new revisions after undoing existing revisions. That is to say, the old revision is not a strict subset of the new revision. This situation occurs when you --force push a change and generate a repository containing something like this: * -- * -- B -- O -- O -- O (ee991fc4a99fe93012acbad3f8c7d3bf1b4f456f) \ N -- N -- N (1ff059f5bd239a640b62f51c995574dc409763d8) When this happens we assume that you've already had alert emails for all of the O revisions, and so we here report only the revisions in the N branch from the common base, B. Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- 1ff059f Add a VTK output for images of unsigned integers. 017a217 mln/io/vtk/save.hh: Fix documentation. ca5bbc8 mln/io/vtk/all.hh: New. 96628ac Add a specific (temporary) VTK output routine for binary mesh images. abe6735 configure.ac: Configure milena/tests/io/vtk/Makefile. 48804b2 Exercise mln::io::vtk::save. 406da43 Start a VTK output for complex-based images. ----------------------------------------------------------------------- Summary of changes: milena/ChangeLog | 22 ++++++ .../test-mesh-complex-pinv-curv-skel.in | 2 +- milena/mln/io/vtk/save.hh | 70 +++++++++++++------ milena/tests/io/vtk/Makefile.am | 1 + milena/tests/io/vtk/save.cc | 9 +++ 5 files changed, 81 insertions(+), 23 deletions(-) hooks/post-receive -- Olena, a generic and efficient image processing platform

14 years, 4 months

last-svn-commit-198-g1ff059f Add a VTK output for images of unsigned integers.

by Roland Levillain

* mln/io/vtk/save.hh (io::vtk::save(const unsigned_2complex_image3df&, const std::string&)): New function. (io::vtk::internal::unsigned_vtk_saver): New structure. * tests/io/vtk/save.cc: Add a tests case for images of unsigneds. * tests/io/vtk/Makefile.am (MOSTLYCLEANFILES): Add save-tetrahedron-unsigned.vtk. --- milena/ChangeLog | 12 ++++++++++++ milena/mln/io/vtk/save.hh | 32 ++++++++++++++++++++++++++++++++ milena/tests/io/vtk/Makefile.am | 1 + milena/tests/io/vtk/save.cc | 9 +++++++++ 4 files changed, 54 insertions(+), 0 deletions(-) diff --git a/milena/ChangeLog b/milena/ChangeLog index 332a57f..af4885f 100644 --- a/milena/ChangeLog +++ b/milena/ChangeLog @@ -1,5 +1,17 @@ 2010-07-28 Roland Levillain <roland(a)lrde.epita.fr> + Add a VTK output for images of unsigned integers. + + * mln/io/vtk/save.hh + (io::vtk::save(const unsigned_2complex_image3df&, const std::string&)): + New function. + (io::vtk::internal::unsigned_vtk_saver): New structure. + * tests/io/vtk/save.cc: Add a tests case for images of unsigneds. + * tests/io/vtk/Makefile.am (MOSTLYCLEANFILES): + Add save-tetrahedron-unsigned.vtk. + +2010-07-28 Roland Levillain <roland(a)lrde.epita.fr> + * mln/io/vtk/save.hh: Fix documentation. 2010-07-27 Roland Levillain <roland(a)lrde.epita.fr> diff --git a/milena/mln/io/vtk/save.hh b/milena/mln/io/vtk/save.hh index 2a4a51f..fbe5a85 100644 --- a/milena/mln/io/vtk/save.hh +++ b/milena/mln/io/vtk/save.hh @@ -73,6 +73,14 @@ namespace mln void save(const int_u8_2complex_image3df& ima, const std::string& filename); + /** \brief Save a gray-level VTK image into a complex image. + + \param[in] ima The image to save. + \param[in] filename The name of the file where to save the + image. */ + void save(const unsigned_2complex_image3df& ima, + const std::string& filename); + /** \brief Save a floating-point value gray-level VTK image into a complex image. @@ -127,6 +135,7 @@ namespace mln void write_face_data(std::ostream& ostr, const image& ima) const; }; + struct int_u8_vtk_saver : public vtk_saver< int_u8_2complex_image3df, int_u8_vtk_saver > { @@ -135,6 +144,14 @@ namespace mln }; + struct unsigned_vtk_saver + : public vtk_saver< unsigned_2complex_image3df, unsigned_vtk_saver > + { + /// \brief Save face data. + void write_face_data(std::ostream& ostr, const image& ima) const; + }; + + struct float_vtk_saver : public vtk_saver< float_2complex_image3df, float_vtk_saver > { @@ -177,6 +194,14 @@ namespace mln } void + save(const unsigned_2complex_image3df& ima, const std::string& filename) + { + trace::entering("mln::io::vtk::save"); + internal::unsigned_vtk_saver()(ima, filename); + trace::exiting("mln::io::vtk::save"); + } + + void save(const float_2complex_image3df& ima, const std::string& filename) { trace::entering("mln::io::vtk::save"); @@ -567,6 +592,13 @@ namespace mln } void + unsigned_vtk_saver::write_face_data(std::ostream& ostr, + const image& ima) const + { + write_scalar_data(ostr, ima, "unsigned_int"); + } + + void float_vtk_saver::write_face_data(std::ostream& ostr, const image& ima) const { diff --git a/milena/tests/io/vtk/Makefile.am b/milena/tests/io/vtk/Makefile.am index 3467f78..548f1b5 100644 --- a/milena/tests/io/vtk/Makefile.am +++ b/milena/tests/io/vtk/Makefile.am @@ -25,5 +25,6 @@ TESTS = $(check_PROGRAMS) MOSTLYCLEANFILES = \ save-tetrahedron-bool.vtk \ save-tetrahedron-int_u8.vtk \ + save-tetrahedron-unsigned.vtk \ save-tetrahedron-float.vtk \ save-tetrahedron-rgb8.vtk diff --git a/milena/tests/io/vtk/save.cc b/milena/tests/io/vtk/save.cc index 908636b..5d4a112 100644 --- a/milena/tests/io/vtk/save.cc +++ b/milena/tests/io/vtk/save.cc @@ -73,6 +73,15 @@ main() "save-tetrahedron-int_u8.vtk"); } + // Unsigned integer values. + { + std::vector<unsigned> values(nfaces); + for (unsigned i = 0; i < nfaces; ++i) + values[i] = mln_max(unsigned) / nfaces * i; + io::vtk::save(make_image<unsigned_2complex_image3df>(bin_ima, values), + "save-tetrahedron-unsigned.vtk"); + } + // Floating-point values. { std::vector<float> values(nfaces); -- 1.5.6.5

14 years, 4 months

last-svn-commit-197-g017a217 mln/io/vtk/save.hh: Fix documentation.

by Roland Levillain

--- milena/ChangeLog | 4 ++++ milena/mln/io/vtk/save.hh | 38 ++++++++++++++++---------------------- 2 files changed, 20 insertions(+), 22 deletions(-) diff --git a/milena/ChangeLog b/milena/ChangeLog index c920037..332a57f 100644 --- a/milena/ChangeLog +++ b/milena/ChangeLog @@ -1,3 +1,7 @@ +2010-07-28 Roland Levillain <roland(a)lrde.epita.fr> + + * mln/io/vtk/save.hh: Fix documentation. + 2010-07-27 Roland Levillain <roland(a)lrde.epita.fr> * mln/io/vtk/all.hh: New. diff --git a/milena/mln/io/vtk/save.hh b/milena/mln/io/vtk/save.hh index 10c3f0b..2a4a51f 100644 --- a/milena/mln/io/vtk/save.hh +++ b/milena/mln/io/vtk/save.hh @@ -58,41 +58,35 @@ namespace mln /** \brief Save a (binary) VTK image into a complex image. \param[in] ima The image to save. - \param[in] filename The name of the file where to save the image. - - The image is said binary since data represent only the - existence of faces. */ + \param[in] filename The name of the file where to save the + image. + */ void save(const bin_2complex_image3df& ima, const std::string& filename); - /** \brief Save an 8-bit grey-level VTK image into a complex image. + /** \brief Save an 8-bit gray-level VTK image into a complex image. \param[in] ima The image to save. - \param[in] filename The name of the file where to save the image. - - Only data is attached to 2-faces is saved; the VTK file - cannot store data attached to faces of other dimensions. */ + \param[in] filename The name of the file where to save the + image. + */ void save(const int_u8_2complex_image3df& ima, const std::string& filename); - /** \brief Save a floating-point value grey-level VTK image into + /** \brief Save a floating-point value gray-level VTK image into a complex image. \param[in] ima The image to save. - \param[in] filename The name of the file where to save the image. - - Only data is attached to 2-faces is saved; the VTK file - cannot store data attached to faces of other dimensions. */ + \param[in] filename The name of the file where to save the + image. */ void save(const float_2complex_image3df& ima, const std::string& filename); /** \brief Save a 3x8-bit RGB (color) VTK image into a complex image. \param[in] ima The image to save. - \param[in] filename The name of the file where to save the image. - - Only data is attached to 2-faces is saved; the VTK file - cannot store data attached to faces of other dimensions. */ + \param[in] filename The name of the file where to save the + image. */ void save(const rgb8_2complex_image3df& ima, const std::string& filename); @@ -248,7 +242,7 @@ namespace mln parts.'' */ /* ``1. The first part is the file version and - identifier. This part contains the single line: + identifier. This part contains the single line: # vtk DataFile Version x.x. @@ -268,9 +262,9 @@ namespace mln << std::endl; /* ``3. The next part is the file format. The file format - describes the type of file, either ASCII or - binary. On this line the single word ASCII or BINARY - must appear.'' */ + describes the type of file, either ASCII or + binary. On this line the single word ASCII or BINARY + must appear.'' */ ostr << "ASCII" << std::endl; /*-------. -- 1.5.6.5

14 years, 4 months

branch mesh-segm-skel updated: last-svn-commit-191-ge5a9aec

by git＠lrde.epita.fr

This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "Olena, a generic and efficient image processing platform". The branch mesh-segm-skel has been updated via e5a9aec0a6c54affaeb106da5da05ea4118be2f6 (commit) from 5e82f8f41121a6f4724fcbe6687673f070c6bf31 (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- e5a9aec Disable the last test case in test-mesh-complex-pinv-curv-skel. ----------------------------------------------------------------------- Summary of changes: milena/ChangeLog | 6 ++++++ .../test-mesh-complex-pinv-curv-skel.in | 2 +- 2 files changed, 7 insertions(+), 1 deletions(-) hooks/post-receive -- Olena, a generic and efficient image processing platform

14 years, 4 months

last-svn-commit-191-ge5a9aec Disable the last test case in test-mesh-complex-pinv-curv-skel.

by Roland Levillain

* apps/mesh-segm-skel/test-mesh-complex-pinv-curv-skel.in: Here. --- milena/ChangeLog | 6 ++++++ .../test-mesh-complex-pinv-curv-skel.in | 2 +- 2 files changed, 7 insertions(+), 1 deletions(-) diff --git a/milena/ChangeLog b/milena/ChangeLog index 3d8b6bc..72bad9b 100644 --- a/milena/ChangeLog +++ b/milena/ChangeLog @@ -1,3 +1,9 @@ +2010-07-28 Roland Levillain <roland(a)lrde.epita.fr> + + Disable the last test case in test-mesh-complex-pinv-curv-skel. + + * apps/mesh-segm-skel/test-mesh-complex-pinv-curv-skel.in: Here. + 2010-07-15 Roland Levillain <roland(a)lrde.epita.fr> mesh-complex-pinv-curv-segm and mesh-complex-pinv-curv-skel apps. diff --git a/milena/apps/mesh-segm-skel/test-mesh-complex-pinv-curv-skel.in b/milena/apps/mesh-segm-skel/test-mesh-complex-pinv-curv-skel.in index 0af2151..7ead683 100644 --- a/milena/apps/mesh-segm-skel/test-mesh-complex-pinv-curv-skel.in +++ b/milena/apps/mesh-segm-skel/test-mesh-complex-pinv-curv-skel.in @@ -23,4 +23,4 @@ mesh_dir=@top_srcdir@/milena/mesh time ./mesh-complex-pinv-curv-skel $mesh_dir/socket.off 10 socket-complex-pinv-curv-skel.off time ./mesh-complex-pinv-curv-skel $mesh_dir/teapot.off 20 teapot-complex-pinv-curv-skel.off # FIXME: Too long. Should be run with (future) target `check-full'. -time ./mesh-complex-pinv-curv-skel $mesh_dir/bunny-holefilled.off 50 bunny-holefilled-complex-pinv-curv-skel.off +#time ./mesh-complex-pinv-curv-skel $mesh_dir/bunny-holefilled.off 50 bunny-holefilled-complex-pinv-curv-skel.off -- 1.5.6.5

14 years, 4 months

last-svn-commit-194-g647086d Add a specific (temporary) VTK output routine for binary mesh images.

by Roland Levillain

* apps/mesh-segm-skel/save_bin_alt.hh (mln::io::vtk::save_bin_alt): New function. --- milena/ChangeLog | 7 + milena/apps/mesh-segm-skel/save_bin_alt.hh | 310 +++++++++++++++++++++++++++- 2 files changed, 312 insertions(+), 5 deletions(-) diff --git a/milena/ChangeLog b/milena/ChangeLog index a53e6be..2d7f267 100644 --- a/milena/ChangeLog +++ b/milena/ChangeLog @@ -1,5 +1,12 @@ 2010-06-24 Roland Levillain <roland(a)lrde.epita.fr> + Add a specific (temporary) VTK output routine for binary mesh images. + + * apps/mesh-segm-skel/save_bin_alt.hh + (mln::io::vtk::save_bin_alt): New function. + +2010-06-24 Roland Levillain <roland(a)lrde.epita.fr> + Exercise mln::io::vtk::save. * tests/io/vtk/save.cc: New. diff --git a/milena/apps/mesh-segm-skel/save_bin_alt.hh b/milena/apps/mesh-segm-skel/save_bin_alt.hh index 034b840..b09fa88 100644 --- a/milena/apps/mesh-segm-skel/save_bin_alt.hh +++ b/milena/apps/mesh-segm-skel/save_bin_alt.hh @@ -1,4 +1,4 @@ -// Copyright (C) 2009 EPITA Research and Development Laboratory (LRDE) +// Copyright (C) 2009, 2010 EPITA Research and Development Laboratory (LRDE) // // This file is part of the Milena Library. This library is free // software; you can redistribute it and/or modify it under the terms @@ -28,10 +28,11 @@ #ifndef APPS_MESH_SEGM_SKEL_SAVE_BIN_ALT_HH # define APPS_MESH_SEGM_SKEL_SAVE_BIN_ALT_HH -/*--------------------------------------------------------------------. -| FIXME: Copied and adjusted (in a hurry) from mln/io/off/save.hh, | -| because fixing image_if + complex_image was much too long. Sorry. | -`--------------------------------------------------------------------*/ +/*-------------------------------------------------------------------. +| FIXME: Copied and adjusted (in a hurry) from mln/io/off/save.hh, | +| and mln/io/vtk/save.hh,because fixing image_if + complex_image was | +| much too long. Sorry. | +`-------------------------------------------------------------------*/ # include <cstdlib> @@ -51,6 +52,10 @@ namespace mln namespace io { + /*------. + | OFF. | + `------*/ + namespace off { @@ -181,6 +186,301 @@ namespace mln } // end of namespace mln::io::off + + /*------. + | VTK. | + `------*/ + + namespace vtk + { + /** FIXME: Similar to + mln::io::vtk::save(const bin_2complex_image3df&, const std::string&), + but does not save faces whose value is `false'. */ + template <typename I> + void save_bin_alt(const I& ima, + const std::string& filename) + { + const std::string me = "mln::io::vtk::save"; + + std::ofstream ostr(filename.c_str()); + if (!ostr) + { + std::cerr << me << ": `" << filename << "' invalid file." + << std::endl; + /* FIXME: Too violent. We should allow the use of + exceptions, at least to have Milena's code behave + correctly in interpreted environments (std::exit() or + std::abort() causes the termination of a Python + interpreter, for instance!). */ + std::exit(1); + } + + /*---------. + | Header. | + `---------*/ + + /* ``The legacy VTK file formats consist of five basic + parts.'' */ + + /* ``1. The first part is the file version and + identifier. This part contains the single line: + + # vtk DataFile Version x.x. + + This line must be exactly as shown with the + exception of the version number x.x, which will vary + with different releases of VTK. (Note: the current + version number is 3.0. Version 1.0 and 2.0 files are + compatible with version 3.0 files.)'' */ + ostr << "# vtk DataFile Version 2.0" << std::endl; + + /* ``2. The second part is the header. The header consists + of a character string terminated by end-of-line + character `\n'. The header is 256 characters + maximum. The header can be used to describe the data + and include any other pertinent information.'' */ + ostr << "Generated by Milena 1.0 http://olena.lrde.epita.fr" + << std::endl; + + /* ``3. The next part is the file format. The file format + describes the type of file, either ASCII or + binary. On this line the single word ASCII or BINARY + must appear.'' */ + ostr << "ASCII" << std::endl; + + /*-------. + | Data. | + `-------*/ + + /* ``4. The fourth part is the dataset structure. The + geometry part describes the geometry and topology of + the dataset. This part begins with a line containing + the keyword DATASET followed by a keyword describing + the type of dataset. Then, depending upon the type + of dataset, other keyword/data combinations define + the actual data.'' + + [...] + + Dataset Format. The Visualization Toolkit supports + five different dataset formats: structured points, + structured grid, rectilinear grid, unstructured + grid, and polygonal data.'' */ + + ostr << "DATASET POLYDATA" << std::endl << std::endl; + + // --------- // + // Complex. // + // --------- // + + static const unsigned D = I::dim; + typedef mln_geom(I) G; + + /* ``* Polygonal Data + The polygonal dataset consists of arbitrary + combinations of surface graphics primitives + vertices (and polyvertices), lines (and + polylines), polygons (of various types), and + triangle strips. Polygonal data is defined by + the POINTS, VERTICES, LINES, POLYGONS, or + TRIANGLE_STRIPS sections. The POINTS definition + is the same as we saw for structured grid + datasets.'' */ + + // ---------------------------- // + // Geometry (point locations). // + // ---------------------------- // + + ostr << "POINTS " + << ima.domain().cplx().template nfaces_of_static_dim<0>() + << " float" << std::endl; + // Iterate on 0-faces (vertices). + p_n_faces_fwd_piter<D, G> v(ima.domain(), 0); + for_all(v) + { + mln_invariant(v.to_site().size() == 1); + ostr << v.to_site().front()[0] << ' ' + << v.to_site().front()[1] << ' ' + << v.to_site().front()[2] << std::endl; + } + ostr << std::endl; + + /* ``The VERTICES, LINES, POLYGONS, or + TRIANGLE_STRIPS keywords define the polygonal + dataset topology. Each of these keywords + requires two parameters: the number of cells `n' + and the size of the cell list `size'. The cell + list size is the total number of integer values + required to represent the list (i.e., sum of + `numPoints' and connectivity indices over each + cell). None of the keywords VERTICES, LINES, + POLYGONS, or TRIANGLE_STRIPS is required.'' */ + + // ---------- // + // Vertices. // + // ---------- // + + /* FIXME: Do not create a VERTICES section if there is no + vertex. + + Likewise, only process vertices having a value attached + to them, i.e., which are part of the domain of the image + (which is different from the complex, upon which the + domain is based). */ + + /* We do not use + + ima.domain().cplx().template nfaces_of_static_dim<N>() + + to get the number of N-faces, since the image may be + masked, and exhibit less N-faces than its underlying + complex. Iterating on the N-faces is safer. */ + /* FIXME: Is there anything faster? See what the interface + of the (morphed) image can provide. */ + unsigned nvertices = 0; + for_all(v) if (ima(v)) + ++nvertices; + + ostr << "VERTICES " << nvertices << ' ' + /* Each vertex requires two numbers: the cardinal of its + ends (which is always 1) and the indices of the point + among the POINTS section. Hence the total number of + values in the VERTEX section is nvertices * 2. */ + << nvertices * 2 << std::endl; + + for_all(v) if (ima(v)) + ostr << "1 " << v.unproxy_().face().face_id() << std::endl; + ostr << std::endl; + + // ------- // + // Edges. // + // ------- // + + /* FIXME: Do not create a LINES section if there is no + edge. + + Likewise, only process edges having a value attached + to them, i.e., which are part of the domain of the image + (which is different from the complex, upon which the + domain is based). */ + + // Same comment as above about the count of N-faces. + unsigned nedges = 0; + p_n_faces_fwd_piter<D, G> e(ima.domain(), 1); + for_all (e) if (ima(e)) + ++nedges; + + ostr << "LINES " << nedges << ' ' + /* Each edge requires three numbers: the cardinal of its + ends (which is always 2) and the indices of these ends + among the POINTS section. Hence the total number of + values in the LINES section is nedges * 3. */ + << nedges * 3 << std::endl; + + // Vertices adjacent to edges. + typedef complex_lower_neighborhood<D, G> adj_vertices_nbh_t; + adj_vertices_nbh_t adj_vertices_nbh; + mln_niter(adj_vertices_nbh_t) adj_v(adj_vertices_nbh, e); + // Iterate on 1-faces (edges). + for_all (e) if (ima(e)) + { + ostr << "2"; + // Iterate on vertices (0-faces). + for_all (adj_v) + { + // FIXME: Accessing the face id is too complicated. + ostr << " " << adj_v.unproxy_().face().face_id(); + } + ostr << std::endl; + } + ostr << std::endl; + + // ---------- // + // Polygons. // + // ---------- // + + /* FIXME: Do not create a POLYGONS section if there is no + polygon. + + Likewise, only process polygons having a value attached + to them, i.e., which are part of the domain of the image + (which is different from the complex, upon which the + domain is based). */ + + // Same comment as above about the count of N-faces. + unsigned npolygons = 0; + p_n_faces_fwd_piter<D, G> p(ima.domain(), 2); + + // FIXME: Merge this loop with the next one. + + for_all (p) if (ima(p)) + ++npolygons; + + // A neighborhood where neighbors are the set of 0-faces + // transitively adjacent to the reference point. + typedef complex_m_face_neighborhood<D, G> nbh_t; + nbh_t nbh; + mln_fwd_niter(nbh_t) u(nbh, p); + /* FIXME: We should be able to pass this value (m) either at + the construction of the neighborhood or at the construction + of the iterator. */ + u.iter().set_m(0); + + /* Compute the number of values (`size') to be passed as + second parameter of the POLYGONS keyword. */ + unsigned polygons_size = 0; + // Iterate on polygons (2-face). + for_all(p) if (ima(p)) + { + unsigned nvertices = 0; + /* FIXME: There may be a faster way to do this (e.g., + the neighbordhood may provide a method returning the + number of P's neighbors. */ + // Iterate on transitively adjacent vertices (0-face). + for_all(u) + ++nvertices; + // The number of values describing this polygon P is the + // cardinal of its set of vertices (1 value) plus the + // NVERTICES indices of these vertices. + polygons_size += 1 + nvertices; + } + ostr << "POLYGONS " << npolygons << ' ' << polygons_size + << std::endl; + + /* Output polygons (one per line), with their number of + vertices and the indices of these vertices. */ + // Iterate on polygons (2-face). + for_all(p) if (ima(p)) + { + unsigned nvertices = 0; + std::ostringstream vertices; + // Iterate on transitively adjacent vertices (0-face). + for_all(u) + { + // FIXME: Likewise, this is a bit too long... + vertices << ' ' << u.unproxy_().face().face_id(); + ++nvertices; + } + ostr << nvertices << vertices.str() << std::endl; + } + + /* ``5. The final part describes the dataset + attributes. This part begins with the keywords + POINT_DATA or CELL_DATA,followed by an integer + number specifying the number of points or cells, + respectively. (It doesn't matter whether POINT_DATA + or CELL_DATA comes first.) Other keyword/data + combinations then define the actual dataset + attribute values (i.e., scalars, vectors, tensors, + normals, texture coordinates, or field data).'' */ + + // FIXME: To do. + + ostr.close(); + } + + } // end of namespace mln::io::vtk + } // end of namespace mln::io } // end of namespace mln -- 1.5.6.5

14 years, 5 months

last-svn-commit-193-g497b315 configure.ac: Configure milena/tests/io/vtk/Makefile.

by Roland Levillain

14 years, 5 months

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Olena-patches July 2010