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Use linked list to store the order of the points

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Trygve 2024-05-05 16:53:00 +02:00
parent 4cd4f773bf
commit 4f709d3b07
1 changed files with 29 additions and 15 deletions
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44
src/main.cpp
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@ -7,12 +7,14 @@
#include <iostream>
#include <iterator>
#include <ostream>
#include <string>
#include <vector>
#include <cstdint>
#include <gdal/gdal.h>
#include "gdal/gdal_priv.h"
#include <gdal/gdal_frmts.h>
#include <omp.h>
#include <fstream>
std::vector<Point> produce_cellmap(HeightMap* heightmap, float z)
{
@ -45,10 +47,10 @@ std::vector<std::vector<Point>> vector_cellmap(HeightMap* heightmap, int interva
std::vector<std::vector<Point>> vector_contours;
omp_set_num_threads(12);
#pragma omp parallel
//#pragma omp parallel
{
std::vector<std::vector<Point>> vec_private;
#pragma omp for
//#pragma omp for
for (int i = 1; i <= num_contours; i++)
{
auto points = produce_cellmap(heightmap, heightmap->min + interval*i);
@ -86,15 +88,17 @@ std::vector<std::vector<Point>> vector_cellmap(HeightMap* heightmap, int interva
if (current->next == nullptr)
{
current->endpoint = true;
std::cout << "🤕";
std::cout << "🤕";std::cout.flush();
}
}
vec_private.push_back(points);
//vec_private.push_back(points);
vector_contours.push_back(points);
std::cout << vector_contours.size();
}
#pragma omp critical
//#pragma omp critical
vector_contours.insert(vector_contours.end(), vec_private.begin(), vec_private.end());
//vector_contours.insert(vector_contours.end(), vec_private.begin(), vec_private.end());
}
return vector_contours;
@ -183,33 +187,44 @@ void write_output_file(std::vector<std::vector<Point>> all_points, const char *f
feature->SetField( "Name", j );
std::vector<Point> points = all_points[j];
Point* current = &points[50];
std::vector<Point>* points = &all_points[j];
Point* current = &points->at(0);
int points_allocated = 0;
while (true)
{
//int x_raw = i%width;
//int y_raw = i/height;
int x_raw = current->x;
int y_raw = current->y;
/*
if (x_raw > 500 || y_raw > 400)
{
std::cout << "🤯";std::cout.flush();
continue;
}
*/
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_raw << ", " << y_raw << " ";std::cout.flush();
//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_raw ,y_raw );
geometry->setPoint(geometry->getNumPoints(),x ,y );
current->allocated = true;
current = current->previous;
//current sometimes becomes random pointer?????
if (current == nullptr)
if (current == nullptr or current->allocated)
{
for (int k = 0; k<points.size(); k++)
for (int k = 0; k<points->size(); k++)
{
if (points[k].endpoint and !points[k].allocated)
if (points->at(k).endpoint and !points->at(k).allocated)
{
current = &points[k];
current = &points->at(k);
}
}
if (current == nullptr){std::cout << "🫠"; break; }
if (current == nullptr){std::cout << "🫠";std::cout.flush(); break; }
}
}
@ -225,7 +240,6 @@ void write_output_file(std::vector<std::vector<Point>> all_points, const char *f
exit( 1 );
}
OGRFeature::DestroyFeature( feature );
break;
}
GDALClose( poDS );