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contour-creator
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Changed file wrriting to use list of points

This commit is contained in:
Trygve 2024-04-30 15:11:44 +02:00
parent 228945a767
commit b800ceaf98
1 changed files with 42 additions and 33 deletions
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75
src/main.cpp
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@ -123,7 +123,7 @@ constexpr std::tuple<double, double, double, double> marching_squares_lookup(int
case 14: return {0, 0.5, 0.5, 0};
};
}
void write_output_file(std::vector<CellMap> cellmaps, const char *filepath)
void write_output_file(std::vector<std::vector<Point>> all_points, const char *filepath, HeightMap* heightmap)
{
const char *pszDriverName = "GeoJSON";
@ -149,7 +149,7 @@ void write_output_file(std::vector<CellMap> cellmaps, const char *filepath)
OGRLayer *poLayer;
poLayer = poDS->CreateLayer( "contours", &(cellmaps[0]).reference_system, wkbLineString, NULL );
poLayer = poDS->CreateLayer( "contours", /*&(cellmaps[0]).reference_system*/ NULL, wkbLineString, NULL );
if( poLayer == NULL )
{
printf( "Layer creation failed.\n" );
@ -165,42 +165,51 @@ void write_output_file(std::vector<CellMap> cellmaps, const char *filepath)
printf( "Creating Name field failed.\n" );
exit( 1 );
}
for (int j = 0; j < cellmaps.size(); j++)
int width = heightmap->width -1;
int height = heightmap->height -1;
int size = width * height;
for (int j = 0; j < all_points.size(); j++)
{
CellMap* cellmap = &cellmaps[j];
OGRFeature *feature;
OGRLineString *geometry = new OGRLineString();
feature = OGRFeature::CreateFeature( poLayer->GetLayerDefn() );
feature->SetField( "Name", j );
for (int i = 0; i < cellmap->height*cellmap->width; i++)
std::vector<Point> points = all_points[j];
for (int i = 0; i < points.size(); i++)
{
if (*(cellmap->cells + i) != 0 && *(cellmap->cells + i) != 15)
{
OGRFeature *feature;
OGRLineString *geometry = new OGRLineString();
feature = OGRFeature::CreateFeature( poLayer->GetLayerDefn() );
feature->SetField( "Name", j );
int x_raw = i%cellmap->width;
int y_raw = i/cellmap->width;
auto [x, y] = local_to_projected(cellmap->geotransform, x_raw, y_raw);
auto [x_bl, y_bl, x_tr, y_tr] = marching_squares_lookup(*(cellmap->cells + i) );
//std::cout << x << ", " << y << " ";
geometry->setPoint( geometry->getNumPoints(), x+x_tr*0.25, y+y_tr*0.25 );
geometry->setPoint( geometry->getNumPoints(), x+x_bl*0.25, y+y_bl*0.25 );
if ( feature->SetGeometry(geometry) != OGRERR_NONE)
{
printf( "Failed to set geometry.\n" );
exit( 1 );
}
OGRGeometryFactory::destroyGeometry(geometry);
if( poLayer->CreateFeature( feature ) != OGRERR_NONE )
{
printf( "Failed to create feature in shapefile.\n" );
exit( 1 );
}
OGRFeature::DestroyFeature( feature );
}
//int x_raw = i%width;
//int y_raw = i/height;
int x_raw = points[i].x;
int y_raw = points[i].y;
auto [x, y] = local_to_projected(heightmap->geotransform, x_raw, y_raw);
//auto [x_bl, y_bl, x_tr, y_tr] = marching_squares_lookup(*(cellmap->cells + i) );
//std::cout << x << ", " << y << " ";
//geometry->setPoint( geometry->getNumPoints(), x+x_tr*0.25, y+y_tr*0.25 );
//geometry->setPoint( geometry->getNumPoints(), x+x_bl*0.25, y+y_bl*0.25 );
geometry->setPoint(geometry->getNumPoints(),x ,y );
}
if ( feature->SetGeometry(geometry) != OGRERR_NONE)
{
printf( "Failed to set geometry.\n" );
exit( 1 );
}
OGRGeometryFactory::destroyGeometry(geometry);
if( poLayer->CreateFeature( feature ) != OGRERR_NONE )
{
printf( "Failed to create feature in shapefile.\n" );
exit( 1 );
}
OGRFeature::DestroyFeature( feature );
}
@ -221,5 +230,5 @@ int main(int argc, const char* argv[])
auto cellmap = produce_cellmap(&map, 40);
auto cellmaps = vector_cellmap(&map, 5);
write_output_file(cellmaps, "out.geojson");
write_output_file(cellmaps, "out.geojson", &map);
}