mirror of
https://github.com/ruby-opencv/ruby-opencv
synced 2023-03-27 23:22:12 -04:00
112 lines
2.4 KiB
C++
112 lines
2.4 KiB
C++
/************************************************************
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curve.cpp -
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$Author: lsxi $
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Copyright (C) 2005 Masakazu Yonekura
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************************************************************/
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#include "curve.h"
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/*
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* Document-class: OpenCV::Curve
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*
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* Curve sequence.
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*/
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__NAMESPACE_BEGIN_OPENCV
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__NAMESPACE_BEGIN_CURVE
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VALUE module;
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VALUE
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rb_module()
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{
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return module;
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}
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void
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define_ruby_module()
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{
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if (module)
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return;
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/*
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* opencv = rb_define_module("OpenCV");
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*
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* note: this comment is used by rdoc.
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*/
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VALUE opencv = rb_module_opencv();
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module = rb_define_module_under(opencv, "Curve");
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rb_define_method(module, "closed?", RUBY_METHOD_FUNC(rb_closed_q), 0);
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rb_define_method(module, "convex?", RUBY_METHOD_FUNC(rb_convex_q), 0);
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rb_define_method(module, "hole?", RUBY_METHOD_FUNC(rb_hole_q), 0);
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rb_define_method(module, "simple?", RUBY_METHOD_FUNC(rb_simple_q), 0);
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rb_define_method(module, "arc_length", RUBY_METHOD_FUNC(rb_arc_length), -1);
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}
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/*
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* If curve is closed, return true. Otherwise return false.
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*/
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VALUE
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rb_closed_q(VALUE self)
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{
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return CV_IS_SEQ_CLOSED(CVSEQ(self)) ? Qtrue : Qfalse;
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}
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/*
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* If curve is convex, return true. Otherwise return false.
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*/
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VALUE
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rb_convex_q(VALUE self)
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{
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return CV_IS_SEQ_CONVEX(CVSEQ(self)) ? Qtrue : Qfalse;
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}
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/*
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* If curve is hole(inner contour), return true. Otherwise return false.
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*/
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VALUE
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rb_hole_q(VALUE self)
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{
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return CV_IS_SEQ_HOLE(CVSEQ(self)) ? Qtrue : Qfalse;
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}
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/*
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* no idia.
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*/
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VALUE
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rb_simple_q(VALUE self)
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{
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return CV_IS_SEQ_SIMPLE(CVSEQ(self)) ? Qtrue : Qfalse;
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}
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/*
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* call-seq:
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* arc_length(<i>[slice = nil][,is_closed = nil]</i>) -> float
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*
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* Calculates contour perimeter or curve length.
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* <i>slice</i> is starting and ending points of the curve.
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* <i>is_closed</i> is indicates whether the curve is closed or not. There are 3 cases:
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* * is_closed = true - the curve is assumed to be unclosed.
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* * is_closed = false - the curve is assumed to be closed.
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* * is_closed = nil (default) use self#close?
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*/
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VALUE
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rb_arc_length(int argc, VALUE *argv, VALUE self)
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{
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VALUE slice, is_closed;
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rb_scan_args(argc, argv, "02", &slice, &is_closed);
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double length = 0;
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try {
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length = cvArcLength(CVARR(self),
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NIL_P(slice) ? CV_WHOLE_SEQ : VALUE_TO_CVSLICE(slice),
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TRUE_OR_FALSE(is_closed, -1));
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}
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catch (cv::Exception& e) {
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raise_cverror(e);
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}
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return rb_float_new(length);
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}
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__NAMESPACE_END_CURVE
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__NAMESPACE_END_OPENCV
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