From 21b1516131f58fe7deee415ca7943b7d90a65ab5 Mon Sep 17 00:00:00 2001 From: curt Date: Tue, 30 Mar 1999 23:50:43 +0000 Subject: [PATCH] Modifications to fanify by attribute. --- GenOutput/genobj.cxx | 100 ++++++++++++++++++++++++++++--------------- GenOutput/genobj.hxx | 7 ++- 2 files changed, 70 insertions(+), 37 deletions(-) diff --git a/GenOutput/genobj.cxx b/GenOutput/genobj.cxx index ad2446d07..0cbfdcdfe 100644 --- a/GenOutput/genobj.cxx +++ b/GenOutput/genobj.cxx @@ -191,8 +191,26 @@ int FGGenOutput::build( const FGArray& array, const FGTriangle& t ) { tri_elements = t.get_elelist(); // build the trifan list + cout << "total triangles = " << tri_elements.size() << endl; FGGenFans f; - fans = f.greedy_build( tri_elements ); + for ( int i = 0; i < FG_MAX_AREA_TYPES; ++i ) { + cout << "generating fans for area = " << i << endl; + + triele_list area_tris; + area_tris.erase( area_tris.begin(), area_tris.end() ); + + const_triele_list_iterator t_current = tri_elements.begin(); + const_triele_list_iterator t_last = tri_elements.end(); + for ( ; t_current != t_last; ++t_current ) { + if ( (int)t_current->get_attribute() == i ) { + area_tris.push_back( *t_current ); + } + } + + if ( (int)area_tris.size() > 0 ) { + fans[i] = f.greedy_build( area_tris ); + } + } // generate the point list in wgs-84 coordinates gen_wgs84_points( array ); @@ -215,25 +233,24 @@ int FGGenOutput::build( const FGArray& array, const FGTriangle& t ) { // caclulate the bounding sphere for a list of triangle faces -void FGGenOutput::calc_group_bounding_sphere( const triele_list& tris, +void FGGenOutput::calc_group_bounding_sphere( const fan_list& fans, Point3D *center, double *radius ) { - cout << "calculate group bounding sphere for " << tris.size() << " tris." + cout << "calculate group bounding sphere for " << fans.size() << " fans." << endl; // generate a list of unique points from the triangle list FGTriNodes nodes; - const_triele_list_iterator t_current = tris.begin(); - const_triele_list_iterator t_last = tris.end(); - for ( ; t_current != t_last; ++t_current ) { - Point3D p1 = wgs84_nodes[ t_current->get_n1() ]; - Point3D p2 = wgs84_nodes[ t_current->get_n2() ]; - Point3D p3 = wgs84_nodes[ t_current->get_n3() ]; - - nodes.unique_add(p1); - nodes.unique_add(p2); - nodes.unique_add(p3); + const_fan_list_iterator f_current = fans.begin(); + const_fan_list_iterator f_last = fans.end(); + for ( ; f_current != f_last; ++f_current ) { + const_int_list_iterator i_current = f_current->begin(); + const_int_list_iterator i_last = f_current->end(); + for ( ; i_current != i_last; ++i_current ) { + Point3D p1 = wgs84_nodes[ *i_current ]; + nodes.unique_add(p1); + } } // find average of point list @@ -357,42 +374,52 @@ int FGGenOutput::write( const string& base, const FGBucket& b ) { // write triangles (grouped by type for now) Point3D center; double radius; - fprintf(fp, "# triangle list\n"); + fprintf(fp, "# triangle groups\n"); fprintf(fp, "\n"); + int total_tris = 0; for ( int i = 0; i < FG_MAX_AREA_TYPES; ++i ) { - triele_list area_tris; - area_tris.erase( area_tris.begin(), area_tris.end() ); - - const_triele_list_iterator t_current = tri_elements.begin(); - const_triele_list_iterator t_last = tri_elements.end(); - for ( ; t_current != t_last; ++t_current ) { - if ( (int)t_current->get_attribute() == i ) { - area_tris.push_back( *t_current ); - } - } - - if ( (int)area_tris.size() > 0 ) { + if ( (int)fans[i].size() > 0 ) { string attr_name = get_area_name( (AreaType)i ); - calc_group_bounding_sphere( area_tris, ¢er, &radius ); - cout << "writing " << (int)area_tris.size() << " faces for " + calc_group_bounding_sphere( fans[i], ¢er, &radius ); + cout << "writing " << (int)fans[i].size() << " fans for " << attr_name << endl; fprintf(fp, "# usemtl %s\n", attr_name.c_str() ); fprintf(fp, "# bs %.4f %.4f %.4f %.2f\n", center.x(), center.y(), center.z(), radius); - triele_list_iterator a_current = area_tris.begin(); - triele_list_iterator a_last = area_tris.end(); - for ( ; a_current != a_last; ++a_current ) { - fprintf( fp, "f %d %d %d\n", - a_current->get_n1(), - a_current->get_n2(), - a_current->get_n3() ); + fan_list_iterator f_current = fans[i].begin(); + fan_list_iterator f_last = fans[i].end(); + for ( ; f_current != f_last; ++f_current ) { + fprintf( fp, "tf" ); + int_list_iterator i_current = f_current->begin(); + int_list_iterator i_last = f_current->end(); + for ( ; i_current != i_last; ++i_current ) { + fprintf( fp, " %d", *i_current ); + } + fprintf( fp, "\n" ); + + { + int_list_iterator i_current = f_current->begin(); + int_list_iterator i_last = f_current->end(); + int center = *i_current; + ++i_current; + int n2 = *i_current; + ++i_current; + for ( ; i_current != i_last; ++i_current ) { + int n3 = *i_current; + fprintf( fp, "f %d %d %d\n", center, n2, n3 ); + ++total_tris; + n2 = n3; + } + } } + fprintf( fp, "\n" ); } } + cout << "wrote " << total_tris << " tris to output file" << endl; fclose(fp); @@ -404,6 +431,9 @@ int FGGenOutput::write( const string& base, const FGBucket& b ) { // $Log$ +// Revision 1.7 1999/03/30 23:50:43 curt +// Modifications to fanify by attribute. +// // Revision 1.6 1999/03/29 13:11:03 curt // Shuffled stl type names a bit. // Began adding support for tri-fanning (or maybe other arrangments too.) diff --git a/GenOutput/genobj.hxx b/GenOutput/genobj.hxx index 7d2d84374..e6ffd1dae 100644 --- a/GenOutput/genobj.hxx +++ b/GenOutput/genobj.hxx @@ -74,7 +74,7 @@ private: triele_list tri_elements; // fan list - fan_list fans; + fan_list fans[FG_MAX_AREA_TYPES]; // for each node, a list of triangle indices that contain this node belongs_to_list reverse_ele_lookup; @@ -105,7 +105,7 @@ private: void calc_gbs(); // caclulate the bounding sphere for a list of triangle faces - void calc_group_bounding_sphere( const triele_list& tris, + void calc_group_bounding_sphere( const fan_list& fans, Point3D *center, double *radius ); // caclulate the bounding sphere for the specified triangle face @@ -131,6 +131,9 @@ public: // $Log$ +// Revision 1.8 1999/03/30 23:50:44 curt +// Modifications to fanify by attribute. +// // Revision 1.7 1999/03/29 13:11:04 curt // Shuffled stl type names a bit. // Began adding support for tri-fanning (or maybe other arrangments too.)