FGFS-4.1/simgear
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Initial revision.

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This commit is contained in:
curt
2001-05-03 01:58:12 +00:00
parent 81e5963a5d
commit 096550f163
4 changed files with 132 additions and 9 deletions
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12
simgear/io/Makefile.am
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@@ -20,7 +20,7 @@ libsgio_a_SOURCES = \
INCLUDES += -I$(top_srcdir)
noinst_PROGRAMS = socktest lowtest
noinst_PROGRAMS = decode_binobj socktest lowtest
socktest_SOURCES = socktest.cxx
@@ -31,4 +31,12 @@ socktest_LDADD = \
lowtest_SOURCES = lowtest.cxx
lowtest_LDADD = \
$(top_builddir)/simgear/io/libsgio.a
$(top_builddir)/simgear/io/libsgio.a
decode_binobj_SOURCES = decode_binobj.cxx
decode_binobj_LDADD = \
$(top_builddir)/simgear/io/libsgio.a \
$(top_builddir)/simgear/bucket/libsgbucket.a \
$(top_builddir)/simgear/misc/libsgmisc.a \
-lz

107
simgear/io/decode_binobj.cxx Normal file
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@@ -0,0 +1,107 @@
#include <unistd.h>
#include "sg_binobj.hxx"
int main( int argc, char **argv ) {
int i, j;
// check usage
if ( argc != 2 ) {
cout << "Usage: " << argv[0] << " binary_obj_file" << endl;
}
SGBinObject obj;
bool result = obj.read_bin( argv[1] );
if ( !result ) {
cout << "error loading: " << argv[1] << endl;
exit(-1);
}
cout << "# FGFS Scenery" << endl;
cout << "# Version " << obj.get_version() << endl;
cout << endl;
printf("# gbs %.5f %.5f %.5f %.2f\n", obj.get_gbs_center().x(),
obj.get_gbs_center().y(), obj.get_gbs_center().z(),
obj.get_gbs_radius());
cout << endl;
point_list nodes = obj.get_wgs84_nodes();
cout << "# vertex list" << endl;
for ( i = 0; i < (int)nodes.size(); ++i ) {
printf("v %.5f %.5f %.5f\n", nodes[i].x(), nodes[i].y(), nodes[i].z() );
}
cout << endl;
point_list normals = obj.get_normals();
cout << "# vertex normal list" << endl;
for ( i = 0; i < (int)normals.size(); ++i ) {
printf("vn %.5f %.5f %.5f\n",
normals[i].x(), normals[i].y(), normals[i].z() );
}
cout << endl;
point_list texcoords = obj.get_texcoords();
cout << "# texture coordinate list" << endl;
for ( i = 0; i < (int)texcoords.size(); ++i ) {
printf("vt %.5f %.5f\n",
texcoords[i].x(), texcoords[i].y() );
}
cout << endl;
cout << "# triangle groups" << endl;
cout << endl;
string material;
int_list vertex_index;
int_list tex_index;
// generate triangles
string_list tri_materials = obj.get_tri_materials();
group_list tris_v = obj.get_tris_v();
group_list tris_tc = obj.get_tris_tc();
for ( i = 0; i < (int)tris_v.size(); ++i ) {
material = tri_materials[i];
vertex_index = tris_v[i];
tex_index = tris_tc[i];
cout << "# usemtl " << material << endl;
cout << "f ";
for ( j = 0; j < (int)vertex_index.size(); ++j ) {
cout << vertex_index[j] << "/" << tex_index[j] << " ";
}
cout << endl;
}
// generate strips
string_list strip_materials = obj.get_strip_materials();
group_list strips_v = obj.get_strips_v();
group_list strips_tc = obj.get_strips_tc();
for ( i = 0; i < (int)strips_v.size(); ++i ) {
material = strip_materials[i];
vertex_index = strips_v[i];
tex_index = strips_tc[i];
cout << "# usemtl " << material << endl;
cout << "ts ";
for ( j = 0; j < (int)vertex_index.size(); ++j ) {
cout << vertex_index[j] << "/" << tex_index[j] << " ";
}
cout << endl;
}
// generate fans
string_list fan_materials = obj.get_fan_materials();
group_list fans_v = obj.get_fans_v();
group_list fans_tc = obj.get_fans_tc();
for ( i = 0; i < (int)fans_v.size(); ++i ) {
material = fan_materials[i];
vertex_index = fans_v[i];
tex_index = fans_tc[i];
cout << "# usemtl " << material << endl;
cout << "tf ";
for ( j = 0; j < (int)vertex_index.size(); ++j ) {
cout << vertex_index[j] << "/" << tex_index[j] << " ";
}
cout << endl;
}
}

18
simgear/io/sg_binobj.cxx
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@@ -192,7 +192,6 @@ bool SGBinObject::read_bin( const string& file ) {
// read headers
unsigned int header;
unsigned short version;
sgReadUInt( fp, &header );
if ( ((header & 0xFF000000) >> 24) == 'S' &&
((header & 0x00FF0000) >> 16) == 'G' ) {
@@ -327,9 +326,14 @@ bool SGBinObject::read_bin( const string& file ) {
sgReadBytes( fp, nbytes, ptr );
int count = nbytes / 3;
for ( k = 0; k < count; ++k ) {
p = Point3D( ptr[0] / 128.0 - 1.0,
ptr[1] / 128.0 - 1.0,
ptr[2] / 128.0 - 1.0 );
sgdVec3 normal;
sgdSetVec3( normal,
(ptr[0]) / 127.5 - 1.0,
(ptr[1]) / 127.5 - 1.0,
(ptr[2]) / 127.5 - 1.0 );
sgdNormalizeVec3( normal );
p = Point3D( normal[0], normal[1], normal[2] );
// cout << "normal = " << p << endl;
normals.push_back( p );
ptr += 3;
@@ -668,9 +672,9 @@ bool SGBinObject::write_bin( const string& base, const string& name,
char normal[3];
for ( i = 0; i < (int)normals.size(); ++i ) {
p = normals[i];
normal[0] = (unsigned char)((p.x() + 1.0) * 128);
normal[1] = (unsigned char)((p.y() + 1.0) * 128);
normal[2] = (unsigned char)((p.z() + 1.0) * 128);
normal[0] = (unsigned char)((p.x() + 1.0) * 127.5);
normal[1] = (unsigned char)((p.y() + 1.0) * 127.5);
normal[2] = (unsigned char)((p.z() + 1.0) * 127.5);
sgWriteBytes( fp, 3, normal );
}

4
simgear/io/sg_binobj.hxx
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@@ -91,6 +91,8 @@ typedef group_list::const_iterator const_group_list_iterator;
* - vertex: FLOAT, FLOAT, FLOAT
*/
class SGBinObject {
unsigned short version;
Point3D gbs_center;
float gbs_radius;
point_list wgs84_nodes;
@@ -108,6 +110,8 @@ class SGBinObject {
public:
inline unsigned short get_version() const { return version; }
inline Point3D get_gbs_center() const { return gbs_center; }
inline void set_gbs_center( Point3D p ) { gbs_center = p; }