From 1dcfb0e737e796943d928cf809e7ce8e86e6cdb3 Mon Sep 17 00:00:00 2001
From: Trygve <trygve@posteo.net>
Date: Tue, 30 Apr 2024 15:09:18 +0200
Subject: [PATCH] Changed file wrriting to use list of points

---
 src/main.cpp | 75 +++++++++++++++++++++++++++++-----------------------
 1 file changed, 42 insertions(+), 33 deletions(-)

diff --git a/src/main.cpp b/src/main.cpp
index 503d81f..5a917e0 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -86,7 +86,7 @@ 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";
@@ -112,7 +112,7 @@ 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" );
@@ -128,42 +128,51 @@ 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 );  
         
 
     }
@@ -184,5 +193,5 @@ 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);
 }
\ No newline at end of file