Module: RGeo::Geos::CAPILineStringMethods

Included in:
CAPILineImpl, CAPILineStringImpl, CAPILinearRingImpl
Defined in:
ext/geos_c_impl/line_string.c

Instance Method Summary collapse

Instance Method Details

#closed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'ext/geos_c_impl/line_string.c', line 299

static VALUE
method_line_string_is_closed(VALUE self)
{
  VALUE result;
  RGeo_GeometryData* self_data;
  const GEOSGeometry* self_geom;

  result = Qnil;
  self_data = RGEO_GEOMETRY_DATA_PTR(self);
  self_geom = self_data->geom;
  if (self_geom) {
    result = rgeo_is_geos_line_string_closed(self_geom);
  }
  return result;
}

#coordinates ⇒ Object 



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# File 'ext/geos_c_impl/line_string.c', line 99

static VALUE
method_line_string_coordinates(VALUE self)
{
  VALUE result;
  RGeo_GeometryData* self_data;
  const GEOSGeometry* self_geom;
  const GEOSCoordSequence* coord_sequence;
  int zCoordinate;

  result = Qnil;
  self_data = RGEO_GEOMETRY_DATA_PTR(self);
  self_geom = self_data->geom;

  if (self_geom) {
    zCoordinate = RGEO_FACTORY_DATA_PTR(self_data->factory)->flags &
                  RGEO_FACTORYFLAGS_SUPPORTS_Z_OR_M;
    coord_sequence = GEOSGeom_getCoordSeq(self_geom);
    if (coord_sequence) {
      result =
        extract_points_from_coordinate_sequence(coord_sequence, zCoordinate);
    }
  }
  return result;
}

#end_point ⇒ Object 



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# File 'ext/geos_c_impl/line_string.c', line 225

static VALUE
method_line_string_end_point(VALUE self)
{
  VALUE result;
  RGeo_GeometryData* self_data;
  const GEOSGeometry* self_geom;
  unsigned int n;

  result = Qnil;
  self_data = RGEO_GEOMETRY_DATA_PTR(self);
  self_geom = self_data->geom;
  if (self_geom) {
    n = GEOSGetNumCoordinates(self_geom);
    if (n > 0) {
      result = method_line_string_point_n(self, INT2NUM(n - 1));
    }
  }
  return result;
}

#eql?(rhs) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'ext/geos_c_impl/line_string.c', line 337

static VALUE
method_line_string_eql(VALUE self, VALUE rhs)
{
  VALUE result;
  RGeo_GeometryData* self_data;

  result = rgeo_geos_klasses_and_factories_eql(self, rhs);
  if (RTEST(result)) {
    self_data = RGEO_GEOMETRY_DATA_PTR(self);
    result = rgeo_geos_geometries_strict_eql(self_data->geom,
                                             RGEO_GEOMETRY_DATA_PTR(rhs)->geom);
  }
  return result;
}

#geometry_type ⇒ Object

#hash ⇒ Object 



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# File 'ext/geos_c_impl/line_string.c', line 352

static VALUE
method_line_string_hash(VALUE self)
{
  st_index_t hash;
  RGeo_GeometryData* self_data;
  VALUE factory;

  self_data = RGEO_GEOMETRY_DATA_PTR(self);
  factory = self_data->factory;
  hash = rb_hash_start(0);
  hash = rgeo_geos_objbase_hash(factory, rgeo_feature_line_string_module, hash);
  hash = rgeo_geos_coordseq_hash(self_data->geom, hash);
  return LONG2FIX(rb_hash_end(hash));
}

#interpolate_point(loc_num) ⇒ Object 



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# File 'ext/geos_c_impl/line_string.c', line 274

static VALUE
method_line_string_interpolate_point(VALUE self, VALUE loc_num)
{
  VALUE result = Qnil;
  VALUE factory;
  RGeo_GeometryData* self_data;
  const GEOSGeometry* self_geom;
  GEOSGeometry* geos_point;

  double location;

  location = NUM2DBL(loc_num);
  self_data = RGEO_GEOMETRY_DATA_PTR(self);
  factory = self_data->factory;
  self_geom = self_data->geom;

  if (self_geom) {
    geos_point = GEOSInterpolate(self_geom, location);
    result =
      rgeo_wrap_geos_geometry(factory, geos_point, rgeo_geos_point_class);
  }

  return result;
}

#length ⇒ Object 



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# File 'ext/geos_c_impl/line_string.c', line 64

static VALUE
method_line_string_length(VALUE self)
{
  VALUE result;
  RGeo_GeometryData* self_data;
  const GEOSGeometry* self_geom;
  double len;

  result = Qnil;
  self_data = RGEO_GEOMETRY_DATA_PTR(self);
  self_geom = self_data->geom;
  if (self_geom) {
    if (GEOSLength(self_geom, &len)) {
      result = rb_float_new(len);
    }
  }
  return result;
}

#num_points ⇒ Object 



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# File 'ext/geos_c_impl/line_string.c', line 83

static VALUE
method_line_string_num_points(VALUE self)
{
  VALUE result;
  RGeo_GeometryData* self_data;
  const GEOSGeometry* self_geom;

  result = Qnil;
  self_data = RGEO_GEOMETRY_DATA_PTR(self);
  self_geom = self_data->geom;
  if (self_geom) {
    result = INT2NUM(GEOSGetNumCoordinates(self_geom));
  }
  return result;
}

#point_n(n) ⇒ Object 



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# File 'ext/geos_c_impl/line_string.c', line 151

static VALUE
method_line_string_point_n(VALUE self, VALUE n)
{
  VALUE result;
  RGeo_GeometryData* self_data;
  const GEOSGeometry* self_geom;
  const GEOSCoordSequence* coord_seq;
  char has_z;
  int si;
  unsigned int i;
  unsigned int size;

  result = Qnil;
  self_data = RGEO_GEOMETRY_DATA_PTR(self);
  self_geom = self_data->geom;
  if (self_geom) {
    coord_seq = GEOSGeom_getCoordSeq(self_geom);
    if (coord_seq) {
      has_z = (char)(RGEO_FACTORY_DATA_PTR(self_data->factory)->flags &
                     RGEO_FACTORYFLAGS_SUPPORTS_Z_OR_M);
      si = RB_NUM2INT(n);
      if (si >= 0) {
        i = si;
        if (GEOSCoordSeq_getSize(coord_seq, &size)) {
          if (i < size) {
            result = get_point_from_coordseq(self, coord_seq, i, has_z);
          }
        }
      }
    }
  }
  return result;
}

#points ⇒ Object 



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# File 'ext/geos_c_impl/line_string.c', line 185

static VALUE
method_line_string_points(VALUE self)
{
  VALUE result;
  RGeo_GeometryData* self_data;
  const GEOSGeometry* self_geom;
  const GEOSCoordSequence* coord_seq;
  char has_z;
  unsigned int size;
  unsigned int i;
  VALUE point;

  result = Qnil;
  self_data = RGEO_GEOMETRY_DATA_PTR(self);
  self_geom = self_data->geom;
  if (self_geom) {
    coord_seq = GEOSGeom_getCoordSeq(self_geom);
    if (coord_seq) {
      has_z = (char)(RGEO_FACTORY_DATA_PTR(self_data->factory)->flags &
                     RGEO_FACTORYFLAGS_SUPPORTS_Z_OR_M);
      if (GEOSCoordSeq_getSize(coord_seq, &size)) {
        result = rb_ary_new2(size);
        for (i = 0; i < size; ++i) {
          point = get_point_from_coordseq(self, coord_seq, i, has_z);
          if (!NIL_P(point)) {
            rb_ary_store(result, i, point);
          }
        }
      }
    }
  }
  return result;
}

#project_point(point) ⇒ Object 



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# File 'ext/geos_c_impl/line_string.c', line 245

static VALUE
method_line_string_project_point(VALUE self, VALUE point)
{
  VALUE result = Qnil;
  VALUE factory;
  RGeo_GeometryData* self_data;
  const GEOSGeometry* self_geom;
  const GEOSGeometry* geos_point;
  int state = 0;

  double location;

  self_data = RGEO_GEOMETRY_DATA_PTR(self);
  factory = self_data->factory;
  self_geom = self_data->geom;

  if (self_geom && point) {
    geos_point = rgeo_convert_to_geos_geometry(
      factory, point, rgeo_geos_point_class, &state);
    if (state) {
      rb_jump_tag(state);
    }

    location = GEOSProject(self_geom, geos_point);
    result = DBL2NUM(location);
  }
  return result;
}

#rep_equals?(rhs) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'ext/geos_c_impl/line_string.c', line 337

static VALUE
method_line_string_eql(VALUE self, VALUE rhs)
{
  VALUE result;
  RGeo_GeometryData* self_data;

  result = rgeo_geos_klasses_and_factories_eql(self, rhs);
  if (RTEST(result)) {
    self_data = RGEO_GEOMETRY_DATA_PTR(self);
    result = rgeo_geos_geometries_strict_eql(self_data->geom,
                                             RGEO_GEOMETRY_DATA_PTR(rhs)->geom);
  }
  return result;
}

#ring? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'ext/geos_c_impl/line_string.c', line 315

static VALUE
method_line_string_is_ring(VALUE self)
{
  VALUE result;
  RGeo_GeometryData* self_data;
  const GEOSGeometry* self_geom;
  char val;

  result = Qnil;
  self_data = RGEO_GEOMETRY_DATA_PTR(self);
  self_geom = self_data->geom;
  if (self_geom) {
    val = GEOSisRing(self_geom);
    if (val == 0) {
      result = Qfalse;
    } else if (val == 1) {
      result = Qtrue;
    }
  }
  return result;
}

#start_point ⇒ Object 



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# File 'ext/geos_c_impl/line_string.c', line 219

static VALUE
method_line_string_start_point(VALUE self)
{
  return method_line_string_point_n(self, INT2NUM(0));
}