mirror of
https://gitlab.com/Trygve/contour-creator.git
synced 2024-12-22 05:40:18 +00:00
Put all classes in one header and rename case to cell
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parent
040e011a66
commit
8084db97a5
@ -5,7 +5,7 @@ project(
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find_package(GDAL CONFIG REQUIRED)
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add_executable(${PROJECT_NAME}
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src/HeightMap.cpp src/CaseMap.cpp src/main.cpp
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src/HeightMap.cpp src/CellMap.cpp src/main.cpp
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)
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find_package(OpenMP)
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if(OpenMP_CXX_FOUND)
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@ -1,17 +0,0 @@
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#include <gdal/ogr_spatialref.h>
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#include <ogr_spatialref.h>
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#include <cstdint>
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/**
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@brief stores the cases from marching squars for one elevation level
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*/
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class CaseMap
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{
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public:
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uint8_t* cases; //!< pointer to the first case in the array. uint8_t is a 8 bit unsigned integer
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int width; //!< width of image in cases
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int height; //!< height of image in cases
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OGRSpatialReference reference_system;
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CaseMap(int width, int height, uint8_t* cases, OGRSpatialReference reference_system);
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int get_case(int x,int y);
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};
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@ -1,19 +1,20 @@
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#include <cstdint>
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#include <gdal/ogr_spatialref.h>
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#include <ogr_spatialref.h>
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#include "CaseMap.hh"
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#include "contour_creator.hh"
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CaseMap::CaseMap(int width, int height, uint8_t* cases, OGRSpatialReference reference_system)
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CellMap::CellMap(int width, int height, uint8_t* cells, OGRSpatialReference reference_system)
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{
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this->width = width;
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this->height = height;
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this->cases = cases;
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this->cells = cells;
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this->reference_system = reference_system;
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}
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int CaseMap::get_case(int x, int y)
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int CellMap::get_cell(int x, int y)
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{
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// all the cases are in an array of ints from left to right, top to bottom
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// all the cells are in an array of ints from left to right, top to bottom
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int offset = ((this->width * y) + x);
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return *(this->cases + offset);
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return *(this->cells + offset);
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}
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@ -5,7 +5,8 @@
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#include "gdal/gdal_priv.h"
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#include <gdal/gdal_frmts.h>
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#include "HeightMap.hh"
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#include "contour_creator.hh"
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HeightMap::HeightMap(const char* filepath)
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{
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@ -42,4 +43,4 @@ float HeightMap::get_pixel(int x, int y)
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int offset = ((this->width * y) + x);
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//std::cout << " offset: " << offset << " " << x << ","<< y;
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return *(this->data + offset);
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}
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}
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@ -1,17 +0,0 @@
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#include <gdal/ogr_spatialref.h>
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/**
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@brief stores the contents of a tif file with float32 values
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*/
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class HeightMap
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{
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public:
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float* data;
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int width; //!< width of image in pixels
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int height; //!< height of image in pixels
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float min; //!< Minimum value in image
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float max; //!< Maximum value in image
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OGRSpatialReference reference_system;
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HeightMap(const char* filepath);
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float get_pixel(int x,int y);
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};
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35
src/contour_creator.hh
Normal file
35
src/contour_creator.hh
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@ -0,0 +1,35 @@
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#include <gdal/ogr_spatialref.h>
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#include <gdal/ogr_spatialref.h>
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#include <ogr_spatialref.h>
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/**
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@brief stores the contents of a tif file with float32 values
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*/
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class HeightMap
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{
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public:
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float* data;
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int width; //!< width of image in pixels
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int height; //!< height of image in pixels
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float min; //!< Minimum value in image
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float max; //!< Maximum value in image
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OGRSpatialReference reference_system;
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HeightMap(const char* filepath);
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float get_pixel(int x,int y);
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};
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/**
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@brief stores the cells from marching squars for one elevation level
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*/
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class CellMap
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{
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public:
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uint8_t* cells; //!< pointer to the first cell in the array. uint8_t is a 8 bit unsigned integer
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int width; //!< width of image in cells
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int height; //!< height of image in cells
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OGRSpatialReference reference_system;
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CellMap(int width, int height, uint8_t* cells, OGRSpatialReference reference_system);
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int get_cell(int x,int y);
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};
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77
src/main.cpp
77
src/main.cpp
@ -1,5 +1,4 @@
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#include "HeightMap.hh"
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#include "CaseMap.hh"
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#include "contour_creator.hh"
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#include <gdal/ogr_api.h>
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#include "ogrsf_frmts.h"
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#include <iostream>
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@ -11,10 +10,10 @@
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#include <gdal/gdal_frmts.h>
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#include <omp.h>
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CaseMap produce_casemap(HeightMap* heightmap, float z)
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CellMap produce_cellmap(HeightMap* heightmap, float z)
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{
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int length = (heightmap->width-1)*(heightmap->height-1);
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uint8_t *cases = (uint8_t *) CPLMalloc(sizeof(uint8_t)*length);
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uint8_t *cells = (uint8_t *) CPLMalloc(sizeof(uint8_t)*length);
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for (int i = 0; i<length; i++) {
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int y = i/(heightmap->width-1);
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int x = i%(heightmap->width-1);
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@ -22,37 +21,37 @@ CaseMap produce_casemap(HeightMap* heightmap, float z)
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(heightmap->get_pixel(x+1,y)>z)*2 +
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(heightmap->get_pixel(x+1,y+1)>z)*4 +
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(heightmap->get_pixel(x,y+1)>z)*8;
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*(cases + i) = result;
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*(cells + i) = result;
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}
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return CaseMap(heightmap->width-1, heightmap->height-1, cases, heightmap->reference_system);
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return CellMap(heightmap->width-1, heightmap->height-1, cells, heightmap->reference_system);
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}
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std::vector<CaseMap> vector_casemap(HeightMap* heightmap, int interval)
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std::vector<CellMap> vector_cellmap(HeightMap* heightmap, int interval)
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{
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int num_contours = (heightmap->max - heightmap->min)/interval;
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std::vector<CaseMap> vector_contours;
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omp_set_num_threads(12);
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std::vector<CellMap> vector_contours;
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omp_set_num_threads(12);
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#pragma omp parallel
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{
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std::vector<CaseMap> vec_private;
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#pragma omp for
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for (int i = 1; i <= num_contours; i++)
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#pragma omp parallel
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{
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vec_private.push_back(produce_casemap(heightmap, heightmap->min + interval*i));
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std::cout << "Execute thread " << omp_get_num_threads() << " ";
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std::vector<CellMap> vec_private;
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#pragma omp for
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for (int i = 1; i <= num_contours; i++)
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{
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vec_private.push_back(produce_cellmap(heightmap, heightmap->min + interval*i));
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std::cout << "Execute thread " << omp_get_num_threads() << " ";
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}
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#pragma omp critical
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vector_contours.insert(vector_contours.end(), vec_private.begin(), vec_private.end());
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}
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#pragma omp critical
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vector_contours.insert(vector_contours.end(), vec_private.begin(), vec_private.end());
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}
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return vector_contours;
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return vector_contours;
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}
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void write_output_file(std::vector<CaseMap> casemaps, const char *filepath)
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void write_output_file(std::vector<CellMap> cellmaps, const char *filepath)
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{
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const char *pszDriverName = "ESRI Shapefile";
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@ -78,7 +77,7 @@ void write_output_file(std::vector<CaseMap> casemaps, const char *filepath)
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OGRLayer *poLayer;
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poLayer = poDS->CreateLayer( "contours", &(casemaps[0]).reference_system, wkbPoint, NULL );
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poLayer = poDS->CreateLayer( "contours", &(cellmaps[0]).reference_system, wkbPoint, NULL );
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if( poLayer == NULL )
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{
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printf( "Layer creation failed.\n" );
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@ -94,25 +93,25 @@ void write_output_file(std::vector<CaseMap> casemaps, const char *filepath)
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printf( "Creating Name field failed.\n" );
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exit( 1 );
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}
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for (int j = 0; j < casemaps.size(); j++)
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for (int j = 0; j < cellmaps.size(); j++)
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{
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CaseMap* casemap = &casemaps[j];
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for (int i = 0; i<casemap->height*casemap->width; i++) {
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if (*(casemap->cases + i) != 0 && *(casemap->cases + i) != 15)
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CellMap* cellmap = &cellmaps[j];
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for (int i = 0; i<cellmap->height*cellmap->width; i++) {
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if (*(cellmap->cells + i) != 0 && *(cellmap->cells + i) != 15)
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{
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int x_int = i%casemap->width;
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int y_int = casemap->height*casemap->width - i/casemap->width;
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int x_int = i%cellmap->width;
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int y_int = cellmap->height*cellmap->width - i/cellmap->width;
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double x = double(x_int);
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double y = double(y_int);
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OGRFeature *poFeature;
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poFeature = OGRFeature::CreateFeature( poLayer->GetLayerDefn() );
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poFeature->SetField( "Name", *(casemap->cases + i) );
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poFeature->SetField( "Name", *(cellmap->cells + i) );
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//OGRSpatialReference local;
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//auto poCT = OGRCreateCoordinateTransformation( &local, &casemap->reference_system );
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//auto poCT = OGRCreateCoordinateTransformation( &local, &cellmap->reference_system );
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/*
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if( poCT == NULL || !poCT->Transform( 1, &x, &y ) )
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@ -138,7 +137,7 @@ void write_output_file(std::vector<CaseMap> casemaps, const char *filepath)
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GDALClose( poDS );
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/*
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OGRDataSourceH datasource = OGR_Dr_CreateDataSource(OGRGetDriverByName("GeoJSON"), "contour.geojson", new char*);
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OGRSpatialReference reference_system = casemap->reference_system;
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OGRSpatialReference reference_system = cellmap->reference_system;
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OGRLayerH layer = OGR_DS_CreateLayer(datasource, "contour", &reference_system, wkbLineString25D, new char*);
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auto feature = OGR_F_Create(OGR_L_GetLayerDefn(static_cast<OGRLayerH>(layer)));
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@ -155,20 +154,20 @@ int main(int argc, const char* argv[])
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std::cout << "x: " << map.width << " y: " << map.height << "\n";
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std::cout << "max: " << map.max << " min: " << map.min << "\n";
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auto casemap = produce_casemap(&map, 40);
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auto cellmap = produce_cellmap(&map, 40);
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/*
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for (int y = 0; y < casemap.height; y++)
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for (int y = 0; y < cellmap.height; y++)
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{
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for (int x = 0; x < casemap.width; x++)
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for (int x = 0; x < cellmap.width; x++)
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{
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if (casemap.get_case(x, y) && casemap.get_case(x, y)!=15) {
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std::cout << x << ","<< y << "=" << casemap.get_case(x, y) << " ";
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if (cellmap.get_cell(x, y) && cellmap.get_cell(x, y)!=15) {
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std::cout << x << ","<< y << "=" << cellmap.get_cell(x, y) << " ";
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}
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}
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//std::cout << "\n";
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}
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*/
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auto casemaps = vector_casemap(&map, 5);
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write_output_file(casemaps, "out.shp");
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auto cellmaps = vector_cellmap(&map, 5);
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write_output_file(cellmaps, "out.shp");
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}
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