center.cpp

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#include "image.h"
#include "runtime.h"

Value * Runtime::center(Value * image, Value * newcenter)
{
  // input checks
  if (image==NULL)  return NULL;
  if (newcenter==NULL) return NULL;
  if (typeid(*image)!=typeid(ImageValue)) return NULL;
  if (typeid(*newcenter)!=typeid(PointValue)) return NULL;
  ImageValue * I = (ImageValue*)image;
  PointValue * nc = (PointValue*)newcenter;
  ImageValue * O = I->deepCopy();
  O->center = O->ocsToDcs(*nc);
  return O;
}

Value * Runtime::center(vector<Value*> v)
{
  if (v.size()!=2) return NULL;
  return center(v[0],v[1]);
}

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