csvread

#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 CSV file
    if((fpi=fopen(argv[1],"r"))==NULL)
    {
        printf("The file can't be opened. The program is exit.\n");

        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,"POINTS %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 %d\n",i);
    }

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

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



    fclose(fpi);
    fclose(fpo);


}