Affine test

gistfile1.txt

#include <stdio.h>
#include <math.h>

void FindResult(int *X, int *Y,int *XR, int *YR,double *affineMap, int XYLength)
{
 for(int i = 0; i < XYLength; i++)
 {
 XR[i] = (int)round(affineMap[0] * (double) X[i] + affineMap[1] * (double)Y[i] + affineMap[4]);
YR[i] = (int)round(affineMap[2] * (double) X[i] + affineMap[3] * (double)Y[i] + affineMap[5]);
  printf("(%d,%d) to (%d,%d)\n",X[i], Y[i],XR[i],YR[i]);
 }
}


int main()
{
    double map[6] = 
    {
1.0000,-1.0000,0.5000,-1.0000,512.0000,256.0000
    };
 int  X[] = {78, 174, -168};
 int  Y[] = {230,-108, 97};
int XR[3] = {0};
int YR[3] = {0};
FindResult(X,Y, XR,YR, map, 3);
for(int i = 0; i < 3; i++)
 {
     printf("(%3d ,%3d)\n", XR[i], YR[i]);
 }
    return 0;
}