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Diffstat (limited to 'src/common/include/gudhi/Off_reader.h')
-rw-r--r--src/common/include/gudhi/Off_reader.h49
1 files changed, 22 insertions, 27 deletions
diff --git a/src/common/include/gudhi/Off_reader.h b/src/common/include/gudhi/Off_reader.h
index 81b9e634..4fcd2af2 100644
--- a/src/common/include/gudhi/Off_reader.h
+++ b/src/common/include/gudhi/Off_reader.h
@@ -31,40 +31,35 @@
#include <iterator>
#include <string>
#include <vector>
+#include <fstream>
namespace Gudhi {
-/**
- * Read an off file and calls a visitor methods while reading it.
- * An off file must have its first/snd line in this format :
- * OFF
- * num_vert num_faces num_edges
- *
- * A noff file must have its first/snd line in this format :
- * nOFF
- * dim num_vert num_faces num_edges
- *
- * The number of edges num_edges is optional and can be left to zero.
+/** \brief OFF file reader top class visitor.
+ *
+ * OFF file must be conform to format described here :
+ * http://www.geomview.org/docs/html/OFF.html
*/
class Off_reader {
public:
Off_reader(std::ifstream& stream) : stream_(stream) { }
- // Off_reader(const std::string& name):stream_(name){
- // if(!stream_.is_open())
- // std::cerr <<"could not open file \n";
- // }
~Off_reader() {
stream_.close();
}
- /**
- * read an off file and calls the following methods :
- * void init(int dim,int num_vertices,int num_faces,int num_edges); //num_edges may not be set
- * void point(const std::vector<double>& point);
- * void maximal_face(const std::list<int>& face);
- * void done();
- * of the visitor when reading a point or a maximal face.
+ /** \brief
+ * Read an OFF file and calls the following methods :
+ *
+ * <CODE>void init(int dim,int num_vertices,int num_faces,int num_edges); // from file header - num_edges may not be set
+ *
+ * void point(const std::vector<double>& point); // for each point read
+ *
+ * void maximal_face(const std::list<int>& face); // for each face read
+ *
+ * void done(); // upon file read is finished</CODE>
+ *
+ * of the visitor when reading a point or a maximal face. Edges are not taken into account.
*/
template<typename OffVisitor>
bool read(OffVisitor& off_visitor) {
@@ -118,7 +113,7 @@ class Off_reader {
if (!goto_next_uncomment_line(line)) return false;
std::istringstream iss(line);
- if (is_off_file) {
+ if ((is_off_file) && (!is_noff_file)) {
off_info_.dim = 3;
if (!(iss >> off_info_.num_vertices >> off_info_.num_faces >> off_info_.num_edges)) {
std::cerr << "incorrect number of vertices/faces/edges\n";
@@ -126,8 +121,8 @@ class Off_reader {
}
} else {
if (!(iss >> off_info_.dim >> off_info_.num_vertices >> off_info_.num_faces >> off_info_.num_edges)) {
- std::cerr << "incorrect number of vertices/faces/edges\n";
- return false;
+ std::cerr << "incorrect number of vertices/faces/edges\n";
+ return false;
}
}
off_visitor.init(off_info_.dim, off_info_.num_vertices, off_info_.num_faces, off_info_.num_edges);
@@ -138,7 +133,7 @@ class Off_reader {
bool goto_next_uncomment_line(std::string& uncomment_line) {
uncomment_line.clear();
do
- std::getline(stream_, uncomment_line); while (uncomment_line[0] == '%'); // || uncomment_line.empty());
+ std::getline(stream_, uncomment_line); while (uncomment_line[0] == '%');
return (uncomment_line.size() > 0 && uncomment_line[0] != '%');
}
@@ -166,7 +161,7 @@ class Off_reader {
iss >> num_face_vertices;
std::vector<int> face;
face.assign(std::istream_iterator<int>(iss), std::istream_iterator<int>());
- if (face.size() != off_info_.dim) return false;
+ // if (face.size() != (off_info_.dim + 1)) return false;
visitor.maximal_face(face);
}
return true;