initial upload

toolkits/tessutil_combine_grids.cpp

@@ -0,0 +1,89 @@
+#include <stdio.h>
+#include <stdlib.h>            
+#include <string.h>
+#include <math.h> 
+
+#define MAX_GRID_POINTS 16000
+
+#define GRID_FORMAT "%lf %lf %f %lf"
+
+void printresult_withalt(double* longitudes, double* latitudes, float* altitudes, double* values, int n_values)
+{
+
+  
+	for (int h = 0; h < n_values; h++)
+        printf( "%lf %lf %f %lf\n", longitudes[h], latitudes[h], altitudes[h], values[h]);
+
+	return;
+}
+
+void printresult(double* longitudes, double* latitudes, double* values, int n_values)
+{
+
+  
+	for (int h = 0; h < n_values; h++)
+        printf( "%lf %lf %lf\n", longitudes[h], latitudes[h], values[h]);
+
+	return;
+}
+
+
+int main(int argc, char**argv)
+{
+	int n_files = (argc-1)/2;
+	
+	double lons[MAX_GRID_POINTS];
+	double lats[MAX_GRID_POINTS];
+	float alts[MAX_GRID_POINTS];
+
+	double vals[MAX_GRID_POINTS];
+	
+	double factor = 1;
+	
+	char * line = NULL;
+	size_t len = 0;
+	ssize_t read;
+	
+	int n_lines = 0;
+	
+	for (int i = 0; i < n_files; i++) 
+	{
+		FILE * fp = fopen(argv[1+2*i], "r");
+		sscanf(argv[1+2*i+1], "%lf", &factor);
+		
+		if (fp == NULL)
+		{
+			printf("ERROR: Can not open file with grid values.\n");
+			exit(EXIT_FAILURE);
+		}
+		
+		n_lines = 0;
+		while ((read = getline(&line, &len, fp )) != -1)
+		{
+
+			if ((line[0] != '#') && (strlen(line) > 2))
+			{
+				n_lines++;
+				if (n_lines>MAX_GRID_POINTS)
+				{
+					printf("ERROR: Too many grid points (> %d) in the input. Recompile program with a bigger value of MAX_GRID_POINTS.\n", n_lines);
+					exit(EXIT_FAILURE);
+				}
+				double value;
+			
+				sscanf(line, GRID_FORMAT, &lons[n_lines-1], &lats[n_lines-1], &alts[n_lines-1], &value);
+				vals[n_lines-1] = vals[n_lines-1] + value*factor;
+
+			}
+		}
+		fclose(fp);
+	}
+	
+	int no_alt = 0;
+	
+	if (no_alt)
+		printresult(lons, lats, vals,  n_lines);
+    else
+		printresult_withalt(lons, lats, alts, vals, n_lines);
+	
+}