init

external/test_ppm.cpp

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+
+
+
+
+#include <iostream>
+#include <Eigen/Core>
+#include <Eigen/Dense>
+
+#include "json.hpp"
+#include "simpleppm.h"
+
+#include <sstream>
+
+using namespace std;
+using namespace nlohmann;
+
+
+int test_save_ppm(){
+    int dimx = 800;
+    int dimy = 600;
+    
+    int w = 100;
+    
+    std::vector<double> buffer(3*dimx*dimy);
+    for(int j=0;j<dimy;++j){
+        for(int i=0;i<dimx;++i){
+            if(((i+j)/w)%2==0){
+                buffer[3*j*dimx+3*i+0]=1;
+                buffer[3*j*dimx+3*i+1]=1;
+                buffer[3*j*dimx+3*i+2]=0;
+            } else {
+                buffer[3*j*dimx+3*i+0]=0;
+                buffer[3*j*dimx+3*i+1]=1;
+                buffer[3*j*dimx+3*i+2]=1;
+            }
+        }
+    }
+               
+             
+    save_ppm("test.ppm", buffer, dimx, dimy);
+    
+    return 0;
+}