From b452149e062f8a7029951af6afdb759159e8913b Mon Sep 17 00:00:00 2001 From: curt Date: Thu, 3 May 2001 02:00:50 +0000 Subject: [PATCH] Working on a utility for inserting some simple photo-real scenery into terragear scenery. --- configure.in | 1 + src/BuildTiles/Makefile.am | 2 +- src/Prep/Makefile.am | 1 + src/Prep/Photo/Makefile.am | 43 ++++++ src/Prep/Photo/photo.cxx | 293 +++++++++++++++++++++++++++++++++++++ 5 files changed, 339 insertions(+), 1 deletion(-) create mode 100644 src/Prep/Photo/Makefile.am create mode 100644 src/Prep/Photo/photo.cxx diff --git a/configure.in b/configure.in index 6e72f235..4ccd840e 100644 --- a/configure.in +++ b/configure.in @@ -324,6 +324,7 @@ AC_OUTPUT( \ src/Prep/E00Lines/Makefile \ src/Prep/GSHHS/Makefile \ src/Prep/MergerClipper/Makefile \ + src/Prep/Photo/Makefile \ src/Prep/ShapeFile/Makefile \ src/Utils/Makefile \ ) diff --git a/src/BuildTiles/Makefile.am b/src/BuildTiles/Makefile.am index f13e5c2c..bb819017 100644 --- a/src/BuildTiles/Makefile.am +++ b/src/BuildTiles/Makefile.am @@ -1,9 +1,9 @@ SUBDIRS = \ Triangulate \ + Osgb36 \ Clipper \ GenOutput \ Match \ - Osgb36 \ Parallel \ Main diff --git a/src/Prep/Makefile.am b/src/Prep/Makefile.am index d82d1223..51580e22 100644 --- a/src/Prep/Makefile.am +++ b/src/Prep/Makefile.am @@ -5,4 +5,5 @@ SUBDIRS = \ E00Lines \ GSHHS \ MergerClipper \ + Photo \ ShapeFile diff --git a/src/Prep/Photo/Makefile.am b/src/Prep/Photo/Makefile.am new file mode 100644 index 00000000..957d45de --- /dev/null +++ b/src/Prep/Photo/Makefile.am @@ -0,0 +1,43 @@ +#--------------------------------------------------------------------------- +# Makefile +# +# Written by Curtis Olson, started January 1998. +# +# Copyright (C) 1998 Curtis L. Olson - curt@me.umn.edu +# +# This program 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; either version 2 of the License, or +# (at your option) any later version. +# +# This program 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 this program; if not, write to the Free Software +# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +# +# $Id$ +#--------------------------------------------------------------------------- + + +bin_PROGRAMS = photo + +photo_SOURCES = photo.cxx + +photo_LDADD = \ + $(top_builddir)/src/Lib/Array/libArray.a \ + $(top_builddir)/src/Lib/Polygon/libPolygon.a \ + $(top_builddir)/src/Lib/poly2tri/libpoly2tri.a \ + $(top_builddir)/src/Lib/Geometry/libGeometry.a \ + $(top_builddir)/src/Lib/TriangleJRS/libTriangleJRS.a \ + -lsgbucket -lsgdebug -lsgio -lsgmath -lsgmisc -lz -lgpc \ + $(base_LIBS) + +INCLUDES += \ + -I$(top_srcdir) \ + -I$(top_srcdir)/src \ + -I$(top_srcdir)/src/Lib \ + -I$(top_srcdir)/src/BuildTiles diff --git a/src/Prep/Photo/photo.cxx b/src/Prep/Photo/photo.cxx new file mode 100644 index 00000000..12361c2a --- /dev/null +++ b/src/Prep/Photo/photo.cxx @@ -0,0 +1,293 @@ +// photo.cxx -- main loop +// +// Written by Curtis Olson, started May 2001. +// +// Copyright (C) 2001 Curtis L. Olson - curt@flightgear.org +// +// This program 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; either version 2 of the License, or +// (at your option) any later version. +// +// This program 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 this program; if not, write to the Free Software +// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +// +// $Id$ + + +#include + +#include +#include + +#include STL_STRING + +#include +#include +#include +#include + +#include +#include + +SG_USING_STD(string); + + +const int MAX_XDIV = 32; +const int MAX_YDIV = 32; + + +// fix node elevations +point_list calc_elevations( const string& root, const point_list& geod_nodes ) { + bool done = false; + point_list result = geod_nodes; + int i, j; + FGArray array; + + // set all elevations to -9999 + for ( i = 0; i < (int)result.size(); ++i ) { + result[i].setz( -9999.0 ); + } + + while ( !done ) { + // find first node with -9999 elevation + i = 0; + while ( (result[i].z() > -9000) && (i < (int)result.size()) ) { + ++i; + } + + if ( i < (int)result.size() ) { + SGBucket b( result[i].x(), result[i].y() ); + string base = b.gen_base_path(); + + // try 3 arcsec dems first + string dem_path = root + "/DEM-3/" + base + + "/" + b.gen_index_str() + ".dem"; + cout << "dem_path = " << dem_path << endl; + + if ( ! array.open(dem_path) ) { + cout << "ERROR: cannot open 3 arcsec file " << dem_path << endl; + cout << "trying 30 arcsec file" << endl; + + // try 30 arcsec dem + dem_path = root + "/DEM-30/" + base + + "/" + b.gen_index_str() + ".dem"; + cout << "dem_path = " << dem_path << endl; + if ( ! array.open(dem_path) ) { + cout << "ERROR: cannot open 3 arcsec file " + << dem_path << endl; + } + } + array.parse( b ); + + // update all the non-updated elevations that are inside + // this dem file + double elev; + done = true; + for ( j = 0; j < (int)result.size(); ++j ) { + if ( result[j].z() < -9000 ) { + done = false; + cout << "interpolating for " << result[j] << endl; + elev = array.interpolate_altitude( result[j].x() * 3600.0, + result[j].y() * 3600.0 ); + if ( elev > -9000 ) { + result[j].setz( elev ); + } + } + } + array.close(); + } else { + done = true; + } + } + + + return result; +} + + +int main( int argc, char **argv ) { + int i, j; + + sglog().setLogLevels( SG_ALL, SG_DEBUG ); + + // check args + if ( argc != 13 ) { + SG_LOG( SG_GENERAL, SG_ALERT, + "Usage " << argv[0] + << " root .png xdiv ydiv x0 y0 x1 y1 x2 y2 x3 y3" ); + exit(-1); + } + + string root = argv[1]; + string image = argv[2]; + + int xdiv = atoi( argv[3] ); + int ydiv = atoi( argv[4] ); + if ( xdiv > MAX_XDIV || xdiv < 1 || ydiv > MAX_YDIV || ydiv < 1 ) { + SG_LOG( SG_GENERAL, SG_ALERT, + "{x,y}div must be in the range of 1 - 32" ); + exit(-1); + } + + double x0 = atof( argv[5] ); + double y0 = atof( argv[6] ); + + double x1 = atof( argv[7] ); + double y1 = atof( argv[8] ); + + double x2 = atof( argv[9] ); + double y2 = atof( argv[10] ); + + double x3 = atof( argv[11] ); + double y3 = atof( argv[12] ); + + // generate vertices + + FGTriNodes nodes; nodes.clear(); + + double dx0 = (x3 - x0) / ydiv; + double dy0 = (y3 - y0) / ydiv; + double dx1 = (x2 - x1) / ydiv; + double dy1 = (y2 - y1) / ydiv; + + double xarray[32][32]; + double yarray[32][32]; + for ( i = 0; i <= xdiv; ++i ) { + double tx0 = x0 + i * dx0; + double ty0 = y0 + i * dy0; + double tx1 = x1 + i * dx1; + double ty1 = y1 + i * dy1; + double dx = (tx1 - tx0) / xdiv; + double dy = (ty1 - ty0) / xdiv; + for ( j = 0; j <= ydiv; ++j ) { + xarray[i][j] = tx0 + j * dx; + yarray[i][j] = ty0 + j * dy; + cout << "(" << xarray[i][j] << "," << yarray[i][j] << ")" << endl; + nodes.simple_add( Point3D(xarray[i][j], yarray[i][j], 0) ); + } + cout << endl; + } + + // create the object structures + + // geodetic nodes + point_list geod_nodes = calc_elevations( root, nodes.get_node_list() ); + + // texture coordinates + FGTriNodes texcoords; texcoords.clear(); + texcoords.simple_add( Point3D( 0.0, 0.0, 0.0 ) ); + texcoords.simple_add( Point3D( 1.0, 0.0, 0.0 ) ); + texcoords.simple_add( Point3D( 1.0, 1.0, 0.0 ) ); + texcoords.simple_add( Point3D( 0.0, 1.0, 0.0 ) ); + + // triangles + group_list strips_v; strips_v.clear(); + group_list strips_tc; strips_tc.clear(); + string_list strip_materials; strip_materials.clear(); + int_list strip_v; + int_list strip_tc; + + int count = 0; + for ( i = 0; i < xdiv; ++i ) { + for ( j = 0; j < ydiv; ++j ) { + strip_v.clear(); + strip_v.push_back( count ); + strip_v.push_back( count + 1 ); + strip_v.push_back( count + xdiv + 1 ); + strip_v.push_back( count + xdiv + 2 ); + + strip_tc.clear(); + strip_tc.push_back( 0 ); + strip_tc.push_back( 1 ); + strip_tc.push_back( 3 ); + strip_tc.push_back( 2 ); + + char bufx[5], bufy[5]; + snprintf( bufx, 5, "%02d", i ); + snprintf( bufy, 5, "%02d", j ); + string material = bufx; + material += bufy; + material += image; + + strips_v.push_back( strip_v ); + strips_tc.push_back( strip_tc ); + strip_materials.push_back( material ); + + ++count; + } + ++count; + } + + // wgs84 cartesian nodes + point_list wgs84_nodes; wgs84_nodes.clear(); + for ( i = 0; i < (int)geod_nodes.size(); ++i ) { + Point3D p; + p.setx( geod_nodes[i].x() * SGD_DEGREES_TO_RADIANS ); + p.sety( geod_nodes[i].y() * SGD_DEGREES_TO_RADIANS ); + p.setz( geod_nodes[i].z() ); + wgs84_nodes.push_back( sgGeodToCart( p ) ); + } + + // bounding sphere + Point3D center_geod = Point3D( (x0 + x2) / 2 * SGD_DEGREES_TO_RADIANS, + (y0 + y2) / 2 * SGD_DEGREES_TO_RADIANS, 0 ); + Point3D gbs_center = sgGeodToCart( center_geod ); + float gbs_radius = sgCalcBoundingRadius( gbs_center, wgs84_nodes ); + + // normals + point_list normals = wgs84_nodes; + sgdVec3 vn; + for ( i = 0; i < (int)normals.size(); ++i ) { + sgdSetVec3( vn, normals[i].x(), normals[i].y(), normals[i].z() ); + sgdNormalizeVec3( vn ); + normals[i] = Point3D( vn[0], vn[1], vn[2] ); + cout << normals[i] << endl; + } + + // build the object + SGBinObject obj; + + // null structures + group_list tris_v; tris_v.clear(); + group_list tris_tc; tris_tc.clear(); + string_list tri_materials; tri_materials.clear(); + + group_list fans_v; fans_v.clear(); + group_list fans_tc; fans_tc.clear(); + string_list fan_materials; fan_materials.clear(); + + obj.set_gbs_center( gbs_center ); + obj.set_gbs_radius( gbs_radius ); + obj.set_wgs84_nodes( wgs84_nodes ); + obj.set_normals( normals ); + obj.set_texcoords( texcoords.get_node_list() ); + obj.set_tris_v( tris_v ); + obj.set_tris_tc( tris_tc ); + obj.set_tri_materials( tri_materials ); + obj.set_strips_v( strips_v ); + obj.set_strips_tc( strips_tc ); + obj.set_strip_materials( strip_materials ); + obj.set_fans_v( fans_v ); + obj.set_fans_tc( fans_tc ); + obj.set_fan_materials( fan_materials ); + + // write the object + string objpath = root + "/PhotoObj"; + string name = image; + SGBucket b( center_geod.x(), center_geod.y() ); + + bool result = obj.write_bin( objpath, name, b ); + if ( !result ) { + cout << "error writing file. :-(" << endl; + exit(-1); + } + + return 0; +}