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cvpoint2d32f.cpp
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cvpoint2d32f.cpp
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/************************************************************
cvpoint2d32f.cpp -
$Author: lsxi $
Copyright (C) 2005 Masakazu Yonekura
************************************************************/
#include"cvpoint2d32f.h"
/*
* Document-class: OpenCV::CvPoint2D32f
*
* This class means one point on X axis Y axis.
* X and Y takes the value of the Float. see also CvPoint
*
* C structure is here, very simple.
* typdef struct CvPoint2D32f{
* float x;
* float y;
* }
*/
__NAMESPACE_BEGIN_OPENCV
__NAMESPACE_BEGIN_CVPOINT2D32F
VALUE rb_klass;
VALUE
rb_class()
{
return rb_klass;
}
void
define_ruby_class()
{
if(rb_klass)
return;
/*
* opencv = rb_define_module("OpenCV");
*
* note: this comment is used by rdoc.
*/
VALUE opencv = rb_module_opencv();
rb_klass = rb_define_class_under(opencv, "CvPoint2D32f", rb_cObject);
rb_define_alloc_func(rb_klass, rb_allocate);
rb_define_singleton_method(rb_klass, "compatible?", RUBY_METHOD_FUNC(rb_compatible_q), 1);
rb_define_private_method(rb_klass, "initialize", RUBY_METHOD_FUNC(rb_initialize), -1);
rb_define_method(rb_klass, "x", RUBY_METHOD_FUNC(rb_x), 0);
rb_define_method(rb_klass, "x=", RUBY_METHOD_FUNC(rb_set_x), 1);
rb_define_method(rb_klass, "y", RUBY_METHOD_FUNC(rb_y), 0);
rb_define_method(rb_klass, "y=", RUBY_METHOD_FUNC(rb_set_y), 1);
rb_define_method(rb_klass, "to_s", RUBY_METHOD_FUNC(rb_to_s), 0);
rb_define_method(rb_klass, "to_ary", RUBY_METHOD_FUNC(rb_to_ary), 0);
}
/*
* call-seq:
* combatible?(obj)
*
* Return compatibility to CvPoint2D32f. Return true if object have method #x and #y.
*
* For example.
* class MyPoint2D32f
* def x
* 95.7
* end
* def y
* 70.2
* end
* end
* mp = MyPoint2D32f.new
* CvPoint2D32f.compatible?(mp) #=> true
* CvPoint2D32f.new(mp) #=> same as CvPoint2D32f(95.7, 70.2)
*/
VALUE
rb_compatible_q(VALUE klass, VALUE object)
{
return (rb_respond_to(object, rb_intern("x")) && rb_respond_to(object, rb_intern("y"))) ? Qtrue : Qfalse;
}
VALUE
rb_allocate(VALUE klass)
{
CvPoint2D32f *ptr;
return Data_Make_Struct(klass, CvPoint2D32f, 0, -1, ptr);
}
/*
* call-seq:
* new
* new(obj)
* new(x, y)
*
* Create new 2D-coordinate, (x, y).
*
* new() is same as new(0.0, 0.0)
*
* new(obj) is same as new(obj.x.to_f, obj.y.to_f)
*/
VALUE
rb_initialize(int argc, VALUE *argv, VALUE self)
{
VALUE obj, x, y;
switch (argc) {
case 0:
break;
case 1:
obj = argv[0];
if(rb_compatible_q(rb_klass, obj)) {
CVPOINT2D32F(self)->x = NUM2DBL(rb_funcall(rb_funcall(obj, rb_intern("x"), 0), rb_intern("to_f"), 0));
CVPOINT2D32F(self)->y = NUM2DBL(rb_funcall(rb_funcall(obj, rb_intern("y"), 0), rb_intern("to_f"), 0));
}else{
rb_raise(rb_eArgError, "object is not compatible %s.", rb_class2name(rb_klass));
}
break;
case 2:
x = argv[0], y = argv[1];
CVPOINT2D32F(self)->x = NUM2DBL(x);
CVPOINT2D32F(self)->y = NUM2DBL(y);
break;
default:
rb_raise(rb_eArgError, "wrong number of arguments (%d for 0..2)", argc);
}
return Qnil;
}
/*
* Return parameter on x-axis.
*/
VALUE
rb_x(VALUE self)
{
return rb_float_new(CVPOINT2D32F(self)->x);
}
/*
* call-seq:
* x = val
*
* Set x-axis parameter, return self.
*/
VALUE
rb_set_x(VALUE self, VALUE x)
{
CVPOINT2D32F(self)->x = NUM2DBL(x);
return self;
}
/*
* Return parameter on y-axis.
*/
VALUE
rb_y(VALUE self)
{
return rb_float_new(CVPOINT2D32F(self)->y);
}
/*
* call-seq:
* y = val
*
* Set y-axis parameter, return self.
*/
VALUE
rb_set_y(VALUE self, VALUE y)
{
CVPOINT2D32F(self)->y = NUM2DBL(y);
return self;
}
/*
* call-seq:
* to_s -> "<OpenCV::CvSize2D32f:(self.x,self.y)>"
*
* Return x and y by String.
*/
VALUE
rb_to_s(VALUE self)
{
const int i = 4;
VALUE str[i];
str[0] = rb_str_new2("<%s:(%f,%f)>");
str[1] = rb_str_new2(rb_class2name(CLASS_OF(self)));
str[2] = rb_x(self);
str[3] = rb_y(self);
return rb_f_sprintf(i, str);
}
/*
* call-seq:
* to_ary -> [x, y]
*
* Return x and y by Array.
*/
VALUE
rb_to_ary(VALUE self)
{
return rb_ary_new3(2, rb_x(self), rb_y(self));
}
VALUE
new_object(CvPoint2D32f point)
{
VALUE object = rb_allocate(rb_klass);
*CVPOINT2D32F(object) = point;
return object;
}
__NAMESPACE_END_CVPOINT2D32F
__NAMESPACE_END_OPENCV