mirror of
https://gitlab.com/Trygve/contour-creator.git
synced 2024-11-10 16:50:14 +00:00
Added min and max values to HeightMap
This commit is contained in:
parent
45fa49a9a8
commit
bd9d6e35d0
@ -21,12 +21,14 @@ HeightMap::HeightMap(const char* filepath)
|
||||
// The heigthmap only has one band
|
||||
auto band = file->GetBands()[0];
|
||||
// write the attrributes
|
||||
this->x_size = band->GetXSize();
|
||||
this->y_size = band->GetYSize();
|
||||
this->width = band->GetXSize();
|
||||
this->height = band->GetYSize();
|
||||
this->min = band->GetMinimum();
|
||||
this->max = band-> GetMaximum();
|
||||
|
||||
this->data = (float *) CPLMalloc(sizeof(float)*x_size*y_size);
|
||||
band->RasterIO( GF_Read, 0, 0, x_size, y_size,
|
||||
this->data, x_size, y_size, GDT_Float32,
|
||||
this->data = (float *) CPLMalloc(sizeof(float)*width*height);
|
||||
band->RasterIO( GF_Read, 0, 0, width, height,
|
||||
this->data, width, height, GDT_Float32,
|
||||
0, 0 );
|
||||
|
||||
band->FlushCache();
|
||||
@ -34,6 +36,6 @@ HeightMap::HeightMap(const char* filepath)
|
||||
float HeightMap::get_pixel(int x, int y)
|
||||
{
|
||||
// all the pixels are in an array of floats from left to right, top to bottom
|
||||
int offset = ((this->x_size * y) + x);
|
||||
int offset = ((this->width * y) + x);
|
||||
return *(this->data + offset);
|
||||
}
|
@ -5,8 +5,10 @@ class HeightMap
|
||||
{
|
||||
public:
|
||||
float* data;
|
||||
int x_size; //!< x dimension in pixels
|
||||
int y_size; //!< y dimension in pixels
|
||||
int width; //!< width of image in pixels
|
||||
int height; //!< height of image in pixels
|
||||
float min; //!< Minimum value in image
|
||||
float max; //!< Maximum value in image
|
||||
|
||||
HeightMap(const char* filepath);
|
||||
float get_pixel(int x,int y);
|
||||
|
12
src/main.cpp
12
src/main.cpp
@ -1,18 +1,22 @@
|
||||
#include "HeightMap.hh"
|
||||
#include <iostream>
|
||||
#include <ostream>
|
||||
|
||||
int main(int argc, const char* argv[])
|
||||
{
|
||||
const char* filepath = argv[1];
|
||||
HeightMap map(filepath);
|
||||
std::cout << "x: " << map.x_size << " y: " << map.y_size << "\n";
|
||||
for (int y = 0; y < map.y_size; y++)
|
||||
|
||||
std::cout << "x: " << map.width << " y: " << map.height << "\n";
|
||||
std::cout << "max: " << map.max << " min: " << map.min << "\n";
|
||||
|
||||
for (int y = 0; y < map.height; y++)
|
||||
{
|
||||
for (int x = 0; x < map.x_size; x++)
|
||||
for (int x = 0; x < map.width; x++)
|
||||
{
|
||||
std::cout << map.get_pixel(x, y) << " ";
|
||||
}
|
||||
std::cout << "\n";
|
||||
}
|
||||
|
||||
std::cout << "\nend🤡\n";
|
||||
}
|
Loading…
Reference in New Issue
Block a user