#include <stdio.h>

int main(int argc, char *argv[])
{

	//Decralation of variables
	int  i;
	int r,g,b;
	unsigned long newline_count=0;
	FILE *fpi,*fpo;
	float x,y,z;


	if(argc!=3)
	{
		fprintf(stderr,"Usage: %s (1)CSVFile\n(2)VTKFile\n",argv[0]);

		return 0;
	}

	//Open VTK file for save
	if((fpo=fopen(argv[2],"w"))==NULL)
	{
		printf("The file can't be opened. The program is exit.\n");

		return 0;
	}

	//count how many lines
	/*
	while((c==fgetc(fpi))!=EOF
	{
		if(c=='\n')
		newline_count++;
	}
	*/

	while (fscanf(fpi,"%f,%f,%f,%d,%d,%d", &x, &y, &z, &r, &g, &b)!=EOF)
	{

		newline_count=newline_count+1;
	}


	printf("total=%ld\n",newline_count);

	//writing VTK file
	fprintf(fpo,"# vtk DataFile Version 3.0\n");
	fprintf(fpo,"vtk output\n");
	fprintf(fpo,"ASCII\n");
	fprintf(fpo,"DATASET UNSTRUCTURED_GRID\n");
	fprintf(fpo,"PINTS %ld float\n",newline_count);










	fseek(fpi,0,SEEK_SET);

	while (fscanf(fpi,"%f,%f,%f,%d,%d,%d", &x, &y, &z, &r, &g, &b)!=EOF)
	{
		printf("%f,%f,%f,%d,%d,%d\n", x, y, z, r, g, b);
		fprintf(fpo,"%f %f %f\n",x,y,z);
	}

	fprintf(fpo,"CELLS %ld %ld\n",newline_count,newline_count*2);

	for(i=0;i<newline_count;i++)
	{
		fprintf(fpo,"1\n");
	}

	fprintf(fpo,"POINT_DATA %ld\n",newline_count);

	fprintf(fpo,"COLOR_SCALARS RGB 3\n");

	fseek(fpi,0,SEEK_SET);

	while (fscanf(fpi,"%f,%f,%f,%d,%d,%d", &x, &y, &z, &r, &g, &b)!=EOF)
	{

		fprintf(fpo,"%f %f 5f\n",(float)r/255,(float)g/255,(float)b/255);
	}



	fclose(fpi);
	fclose(fpo);


}