C++ (Cpp) VALUE_TO_CVPOINT Examples

Example #1

File: cvpoint.cpp Project: rickyrobinson/ruby-opencv

/*
 * call-seq:
 *   new -> CvPoint.new(0, 0)
 *   new(obj) -> CvPoint.new(obj.x.to_i, obj.y.to_i)
 *   new(x, y)
 *
 * Create new 2D-coordinate, (x, y). It is dropped below the decimal point.
 *
 * new() is same as new(0, 0)
 *
 * new(obj) is same as new(obj.x.to_i, obj.y.to_i)
 */
VALUE
rb_initialize(int argc, VALUE *argv, VALUE self)
{
  CvPoint* self_ptr = CVPOINT(self);
  switch (argc) {
  case 0:
    break;
  case 1: {
    CvPoint point = VALUE_TO_CVPOINT(argv[0]);
    self_ptr->x = point.x;
    self_ptr->y = point.y;
    break;
  }
  case 2:
    self_ptr->x = NUM2INT(argv[0]);
    self_ptr->y = NUM2INT(argv[1]);
    break;
  default:
    rb_raise(rb_eArgError, "wrong number of arguments (%d for 0..2)", argc);
    break;
  }
  return self;
}

Example #2

File: cvchain.cpp Project: afeld/ruby-opencv

/*
 * call-seq:
 *   origin = point -> self
 *
 * Set Freeman chain code origin.
 */
VALUE
rb_set_origin(VALUE self, VALUE origin)
{
  CVCHAIN(self)->origin = VALUE_TO_CVPOINT(origin);  
  return self;
}