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用C语言编程,用二维数组实现对坐标内点的个数的统计

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悬赏园豆:10 [待解决问题]

#include <stdio.h>
#include <stdlib.h>
#define NUMROWS 30
#define NUMCOLS 50


int main()
{
int PID;
double POSX,POSY,POSZ;
int i,j,m,n;
int dx=20,dy=20;
char title[20];
int cell[NUMROWS][NUMCOLS];
int I=158,J=158;


for(i=0;i<NUMROWS;i++)
{
for(j=0;j<NUMCOLS;j++)
{
cell[i][j]=0;
}
}



FILE *fq=fopen("tecplot_1000.dat","r"), *fp=fopen("tpout.dat","w");
if (fq==NULL || fp==NULL)
{
puts("The file open failed!");
return 0;
}



printf("Start reading the title!\n");
fgets(title,20,fq);
fprintf(fp,"Title= \"MPH\"\n");
fprintf(fp,"VARIABLES=\"X\",\"Y\",\"F\"\n");
fprintf(fp,"ZONE T= \"GEO\",I=%d ,J=%d ,F=POINT\n",I,J);



printf("Read the end of the title and start reading the data!\n");
while(!feof(fq))
{
fscanf(fq,"%d %lf %lf %lf",&PID,&POSX,&POSY,&POSZ);
if(POSZ>100 && POSZ<300)
{
i=int(POSX/dx);
j=int(POSY/dy);
cell[i][j]= cell[i][j]+1;
//fprintf(fp,"%d %d %d\n",i,j,cell[i][j]); //测试发现是cell[i][j]出了问题,
                                                         //只要输出cell[i][j],就不能输出数据。
}


}



/*for (m= 0; m<NUMROWS ; m++)
{
for(n = 0; n<NUMCOLS ; n++)
{
fprintf(fp,"%d %d %d\n",m,n,cell[m][n]);
}
}
printf("Data reading completed!\n");*/





fclose(fq);
fclose(fp);
return 0;
}

时光路人666的主页 时光路人666 | 初学一级 | 园豆:184
提问于:2018-07-24 21:22
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