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Add a routine to dump out the .hgt data in a simplistic ascii format.

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This commit is contained in:
curt 2003-03-10 14:54:42 +00:00
parent bf96033516
commit 266772ee39
3 changed files with 33 additions and 6 deletions
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23
src/Lib/HGT/hgt.cxx
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@ -229,6 +229,29 @@ TGHgt::write_area( const string& root, SGBucket& b ) {
}
// write the entire area out in a simple ascii format
bool TGHgt::write_whole_ascii( const string& file ) {
cout << "writing to " << file << endl;
// write the file
gzFile fp;
if ( (fp = gzopen( file.c_str(), "wb9" )) == NULL ) {
cout << "ERROR: cannot open " << file << " for writing!" << endl;
exit(-1);
}
gzprintf( fp, "%d\n%d\n", rows, cols );
for ( int i = 0; i < rows; i++ ) {
for ( int j = 0; j < cols; j++ ) {
gzprintf( fp, "%d\n", (int)data[i][j] );
}
}
gzclose(fp);
return true;
}
TGHgt::~TGHgt() {
// printf("class TGHgt DEstructor called.\n");
delete [] data;

3
src/Lib/HGT/hgt.hxx
View file

@ -83,6 +83,9 @@ public:
// hand corner.
bool write_area( const string& root, SGBucket& b );
// write the entire area out in a simple ascii format
bool write_whole_ascii( const string& file );
// Informational methods
inline double get_originx() const { return originx; }
inline double get_originy() const { return originy; }

13
src/Lib/HGT/testhgt.cxx
View file

@ -3,15 +3,16 @@
#include "hgt.hxx"
int main() {
SGPath path1( "/stage/fgfs03/SRTM/United_States/N33W080/1arcsec/N33W080.hgt.gz" );
SGPath path3( "/stage/fgfs03/SRTM/United_States/N33W080/3arcsec/N33W080.hgt.gz" );
// SGPath path1( "/stage/fgfs03/SRTM/United_States/N33W080/1arcsec/N33W080.hgt.gz" );
SGPath path3( "N37W123/3arcsec/N37W123.hgt.gz" );
TGHgt hgt1( 1, path1 );
// TGHgt hgt1( 1, path1 );
TGHgt hgt3( 3, path3 );
hgt1.load();
// hgt1.load();
hgt3.load();
SGBucket b(-79.5, 33.5);
hgt1.write_area( ".", b );
// SGBucket b(-79.5, 33.5);
// hgt1.write_area( ".", b );
hgt3.write_whole_ascii( "test.ahgt" );
}