Class: TG::Geometry::Ring

Inherits:
Object
  • Object
show all
Defined in:
ext/tg_geometry/tg_geometry_ext.c

Instance Method Summary collapse

Instance Method Details

#area ⇒ Object 



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# File 'ext/tg_geometry/tg_geometry_ext.c', line 1831

static VALUE rb_tg_geometry_ring_area(VALUE self) {
    tg_ring_wrapper_t *w = get_ring_wrapper(self);
    return rb_float_new(tg_ring_area(w->ring));
}

#bbox ⇒ Object 



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# File 'ext/tg_geometry/tg_geometry_ext.c', line 1771

static VALUE rb_tg_geometry_ring_bbox(VALUE self) {
    tg_ring_wrapper_t *w = get_ring_wrapper(self);
    VALUE rect = rect_from_tg_rect(tg_ring_rect(w->ring));

    RB_GC_GUARD(self);
    return rect;
}

#clockwise? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'ext/tg_geometry/tg_geometry_ext.c', line 1841

static VALUE rb_tg_geometry_ring_clockwise_p(VALUE self) {
    tg_ring_wrapper_t *w = get_ring_wrapper(self);
    return tg_ring_clockwise(w->ring) ? Qtrue : Qfalse;
}

#convex? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'ext/tg_geometry/tg_geometry_ext.c', line 1846

static VALUE rb_tg_geometry_ring_convex_p(VALUE self) {
    tg_ring_wrapper_t *w = get_ring_wrapper(self);
    return tg_ring_convex(w->ring) ? Qtrue : Qfalse;
}

#num_points ⇒ Object 



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# File 'ext/tg_geometry/tg_geometry_ext.c', line 1779

static VALUE rb_tg_geometry_ring_num_points(VALUE self) {
    tg_ring_wrapper_t *w = get_ring_wrapper(self);
    return INT2NUM(tg_ring_num_points(w->ring));
}

#num_segments ⇒ Object 



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# File 'ext/tg_geometry/tg_geometry_ext.c', line 1805

static VALUE rb_tg_geometry_ring_num_segments(VALUE self) {
    tg_ring_wrapper_t *w = get_ring_wrapper(self);
    return INT2NUM(tg_ring_num_segments(w->ring));
}

#perimeter ⇒ Object 



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# File 'ext/tg_geometry/tg_geometry_ext.c', line 1836

static VALUE rb_tg_geometry_ring_perimeter(VALUE self) {
    tg_ring_wrapper_t *w = get_ring_wrapper(self);
    return rb_float_new(tg_ring_perimeter(w->ring));
}

#point_at(index_value) ⇒ Object 



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# File 'ext/tg_geometry/tg_geometry_ext.c', line 1784

static VALUE rb_tg_geometry_ring_point_at(VALUE self, VALUE index_value) {
    tg_ring_wrapper_t *w = get_ring_wrapper(self);
    int index = checked_child_index(index_value, tg_ring_num_points(w->ring), "ring point");

    return point_array_from_tg_point(tg_ring_point_at(w->ring, index));
}

#points ⇒ Object 



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# File 'ext/tg_geometry/tg_geometry_ext.c', line 1791

static VALUE rb_tg_geometry_ring_points(VALUE self) {
    tg_ring_wrapper_t *w = get_ring_wrapper(self);
    int count = tg_ring_num_points(w->ring);
    VALUE points = rb_ary_new_capa(count);

    for (int i = 0; i < count; i++) {
        rb_ary_push(points, point_array_from_tg_point(tg_ring_point_at(w->ring, i)));
    }

    RB_GC_GUARD(self);
    RB_GC_GUARD(points);
    return points;
}

#segment_at(index_value) ⇒ Object 



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# File 'ext/tg_geometry/tg_geometry_ext.c', line 1810

static VALUE rb_tg_geometry_ring_segment_at(VALUE self, VALUE index_value) {
    tg_ring_wrapper_t *w = get_ring_wrapper(self);
    int index = checked_child_index(index_value, tg_ring_num_segments(w->ring), "ring segment");

    return segment_wrap_value(tg_ring_segment_at(w->ring, index));
}

#segments ⇒ Object 



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# File 'ext/tg_geometry/tg_geometry_ext.c', line 1817

static VALUE rb_tg_geometry_ring_segments(VALUE self) {
    tg_ring_wrapper_t *w = get_ring_wrapper(self);
    int count = tg_ring_num_segments(w->ring);
    VALUE segments = rb_ary_new_capa(count);

    for (int i = 0; i < count; i++) {
        rb_ary_push(segments, segment_wrap_value(tg_ring_segment_at(w->ring, i)));
    }

    RB_GC_GUARD(self);
    RB_GC_GUARD(segments);
    return segments;
}