Module: TG::Geometry

Defined in:
lib/tg/geometry.rb,
lib/tg/geometry/version.rb,
lib/tg/geometry/registry.rb,
lib/tg/geometry/active_record_type.rb,
lib/tg/geometry/active_record_source.rb,
ext/tg_geometry/tg_geometry_ext.c

Overview

Fast immutable planar geometry engine with proper indexes and clean EWKB/PostGIS boundaries. Not a GIS. Not an rgeo replacement.

All distances and coordinates are in input units. SRID is metadata only; no reprojection is performed.

Defined Under Namespace

Modules: ActiveRecordSource, FeatureSource Classes: ActiveRecordType, ArgumentError, Error, FrozenIndexError, Geom, Index, Line, NearestSegment, ParseError, Polygon, Rect, Registry, Ring, Segment

Constant Summary collapse

VERSION = 
"0.3.0"

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

._debug_fail_next_entries_alloc! ⇒ Object 



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# File 'ext/tg_geometry/tg_geometry_ext.c', line 3977

static VALUE rb_tg_geometry_debug_fail_next_entries_alloc(VALUE self) {
    (void)self;
    tg_debug_fail_next_entries_alloc = true;
    return Qnil;
}

._debug_fail_next_match_buffer_alloc! ⇒ Object 



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# File 'ext/tg_geometry/tg_geometry_ext.c', line 4001

static VALUE rb_tg_geometry_debug_fail_next_match_buffer_alloc(VALUE self) {
    (void)self;
    tg_debug_fail_next_match_buffer_alloc = true;
    return Qnil;
}

._debug_fail_next_rtree_alloc! ⇒ Object 



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# File 'ext/tg_geometry/tg_geometry_ext.c', line 3983

static VALUE rb_tg_geometry_debug_fail_next_rtree_alloc(VALUE self) {
    (void)self;
    tg_debug_fail_rtree_alloc_countdown = 0;
    return Qnil;
}

._debug_fail_rtree_alloc_after!(count_value) ⇒ Object 



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# File 'ext/tg_geometry/tg_geometry_ext.c', line 3989

static VALUE rb_tg_geometry_debug_fail_rtree_alloc_after(VALUE self, VALUE count_value) {
    long count;

    (void)self;
    count = NUM2LONG(count_value);
    if (count < 0) {
        rb_raise(eTGGeometryArgumentError, "count must be >= 0");
    }
    tg_debug_fail_rtree_alloc_countdown = count;
    return Qnil;
}

._debug_reset_test_hooks! ⇒ Object 



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# File 'ext/tg_geometry/tg_geometry_ext.c', line 3969

static VALUE rb_tg_geometry_debug_reset_test_hooks(VALUE self) {
    (void)self;
    tg_debug_fail_next_entries_alloc = false;
    tg_debug_fail_rtree_alloc_countdown = -1;
    tg_debug_fail_next_match_buffer_alloc = false;
    return Qnil;
}

.build(entries, via:, strategy:, predicate: :covers, geometry_index: :ystripes) ⇒ Object

predicate: affects only legacy point query methods: find_covering, covering_ids(x, y), covering_ids_batch_packed. The *_geom_ids methods use their own predicates derived from the method name.




# File 'lib/tg/geometry.rb', line 53

.empty_geometrycollection ⇒ Object 



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# File 'ext/tg_geometry/tg_geometry_ext.c', line 1272

static VALUE rb_tg_geometry_empty_geometrycollection(VALUE self) {
    (void)self;
    return wrap_constructed_geom(tg_geom_new_geometrycollection_empty());
}

.empty_linestring ⇒ Object 



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# File 'ext/tg_geometry/tg_geometry_ext.c', line 1247

static VALUE rb_tg_geometry_empty_linestring(VALUE self) {
    (void)self;
    return wrap_constructed_geom(tg_geom_new_linestring_empty());
}

.empty_multilinestring ⇒ Object 



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# File 'ext/tg_geometry/tg_geometry_ext.c', line 1262

static VALUE rb_tg_geometry_empty_multilinestring(VALUE self) {
    (void)self;
    return wrap_constructed_geom(tg_geom_new_multilinestring_empty());
}

.empty_multipoint ⇒ Object 



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# File 'ext/tg_geometry/tg_geometry_ext.c', line 1257

static VALUE rb_tg_geometry_empty_multipoint(VALUE self) {
    (void)self;
    return wrap_constructed_geom(tg_geom_new_multipoint_empty());
}

.empty_multipolygon ⇒ Object 



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# File 'ext/tg_geometry/tg_geometry_ext.c', line 1267

static VALUE rb_tg_geometry_empty_multipolygon(VALUE self) {
    (void)self;
    return wrap_constructed_geom(tg_geom_new_multipolygon_empty());
}

.empty_point ⇒ Object 



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# File 'ext/tg_geometry/tg_geometry_ext.c', line 1242

static VALUE rb_tg_geometry_empty_point(VALUE self) {
    (void)self;
    return wrap_constructed_geom(tg_geom_new_point_empty());
}

.empty_polygon ⇒ Object 



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# File 'ext/tg_geometry/tg_geometry_ext.c', line 1252

static VALUE rb_tg_geometry_empty_polygon(VALUE self) {
    (void)self;
    return wrap_constructed_geom(tg_geom_new_polygon_empty());
}

.line_string(*args) ⇒ Object 



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# File 'ext/tg_geometry/tg_geometry_ext.c', line 1472

static VALUE rb_tg_geometry_line_string(int argc, VALUE *argv, VALUE self) {
    VALUE points_value;
    VALUE kwargs;
    VALUE index_value;
    VALUE srid_value;
    enum tg_index index;
    bool has_srid;
    int srid;
    struct tg_point *points;
    long len;
    struct tg_line *line;
    struct tg_geom *geom;

    (void)self;
    rb_scan_args(argc, argv, "1:", &points_value, &kwargs);
    {
        ID allowed[] = {id_index, id_srid};
        validate_keywords(kwargs, allowed, sizeof(allowed) / sizeof(allowed[0]));
    }

    index_value = kwargs_value(kwargs, id_index, ID2SYM(id_natural));
    srid_value = kwargs_value(kwargs, id_srid, Qnil);
    index = parse_index_symbol(index_value);
    has_srid = parse_srid_option(srid_value, &srid);

    points = parse_points_array(points_value, &len, "line_string");
    if (len < 2) {
        ruby_xfree(points);
        rb_raise(eTGGeometryArgumentError, "line_string requires at least 2 points, got %ld", len);
    }

    line = tg_line_new_ix(points, (int)len, index);
    ruby_xfree(points);
    if (!line) {
        rb_raise(rb_eNoMemError, "TG line allocation failed");
    }

    geom = tg_geom_new_linestring(line);
    tg_line_free(line);
    return wrap_constructed_geom_with_srid(geom, has_srid, srid);
}

.multi_polygon(*args) ⇒ Object 



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# File 'ext/tg_geometry/tg_geometry_ext.c', line 1611

static VALUE rb_tg_geometry_multi_polygon(int argc, VALUE *argv, VALUE self) {
    VALUE polygons_value;
    VALUE kwargs;
    VALUE index_value;
    VALUE srid_value;
    enum tg_index index;
    bool has_srid;
    int srid;
    long npolys;
    tg_build_multipolygon_args_t args;
    int state = 0;

    (void)self;
    rb_scan_args(argc, argv, "1:", &polygons_value, &kwargs);
    {
        ID allowed[] = {id_index, id_srid};
        validate_keywords(kwargs, allowed, sizeof(allowed) / sizeof(allowed[0]));
    }

    if (!RB_TYPE_P(polygons_value, T_ARRAY)) {
        rb_raise(rb_eTypeError, "polygons must be an Array");
    }

    index_value = kwargs_value(kwargs, id_index, ID2SYM(id_ystripes));
    srid_value = kwargs_value(kwargs, id_srid, Qnil);
    index = parse_index_symbol(index_value);
    has_srid = parse_srid_option(srid_value, &srid);

    npolys = RARRAY_LEN(polygons_value);
    if (npolys > INT_MAX) {
        rb_raise(eTGGeometryArgumentError, "multi_polygon has too many polygons");
    }

    if (npolys == 0) {
        return wrap_constructed_geom_with_srid(tg_geom_new_multipolygon_empty(), has_srid, srid);
    }

    args.polygons_value = polygons_value;
    args.index = index;
    args.npolys = npolys;
    args.polys = NULL;
    args.built = 0;
    args.geom = NULL;

    rb_protect(build_multipolygon_body, (VALUE)&args, &state);
    build_multipolygon_cleanup(&args);

    if (state) {
        rb_jump_tag(state);
    }

    RB_GC_GUARD(polygons_value);
    return wrap_constructed_geom_with_srid(args.geom, has_srid, srid);
}

.parse(*args) ⇒ Object 



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# File 'ext/tg_geometry/tg_geometry_ext.c', line 1020

static VALUE rb_tg_geometry_parse(int argc, VALUE *argv, VALUE self) {
    VALUE input;
    VALUE kwargs;
    VALUE format_value;
    VALUE index_value;
    enum tg_geometry_parse_format format;
    enum tg_index index;

    (void)self;
    rb_scan_args(argc, argv, "1:", &input, &kwargs);
    {
        ID allowed[] = {id_format, id_index};
        validate_keywords(kwargs, allowed, sizeof(allowed) / sizeof(allowed[0]));
    }

    format_value = kwargs_value(kwargs, id_format, ID2SYM(id_auto));
    index_value = kwargs_value(kwargs, id_index, ID2SYM(id_ystripes));
    format = parse_format_symbol(format_value);
    index = parse_index_symbol(index_value);

    return parse_string_with_format(input, format, index);
}

.parse_geobin(*args) ⇒ Object 



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# File 'ext/tg_geometry/tg_geometry_ext.c', line 1119

static VALUE rb_tg_geometry_parse_geobin(int argc, VALUE *argv, VALUE self) {
    VALUE input;
    VALUE kwargs;
    VALUE index_value;
    enum tg_index index;

    (void)self;
    rb_scan_args(argc, argv, "1:", &input, &kwargs);
    {
        ID allowed[] = {id_index};
        validate_keywords(kwargs, allowed, sizeof(allowed) / sizeof(allowed[0]));
    }

    index_value = kwargs_value(kwargs, id_index, ID2SYM(id_ystripes));
    index = parse_index_symbol(index_value);

    return parse_string_with_format(input, TG_GEOMETRY_FORMAT_GEOBIN, index);
}

.parse_geojson(*args) ⇒ Object 



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# File 'ext/tg_geometry/tg_geometry_ext.c', line 1043

static VALUE rb_tg_geometry_parse_geojson(int argc, VALUE *argv, VALUE self) {
    VALUE input;
    VALUE kwargs;
    VALUE index_value;
    enum tg_index index;

    (void)self;
    rb_scan_args(argc, argv, "1:", &input, &kwargs);
    {
        ID allowed[] = {id_index};
        validate_keywords(kwargs, allowed, sizeof(allowed) / sizeof(allowed[0]));
    }

    index_value = kwargs_value(kwargs, id_index, ID2SYM(id_ystripes));
    index = parse_index_symbol(index_value);

    return parse_string_with_format(input, TG_GEOMETRY_FORMAT_GEOJSON, index);
}

.parse_hex(*args) ⇒ Object 



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# File 'ext/tg_geometry/tg_geometry_ext.c', line 1100

static VALUE rb_tg_geometry_parse_hex(int argc, VALUE *argv, VALUE self) {
    VALUE input;
    VALUE kwargs;
    VALUE index_value;
    enum tg_index index;

    (void)self;
    rb_scan_args(argc, argv, "1:", &input, &kwargs);
    {
        ID allowed[] = {id_index};
        validate_keywords(kwargs, allowed, sizeof(allowed) / sizeof(allowed[0]));
    }

    index_value = kwargs_value(kwargs, id_index, ID2SYM(id_ystripes));
    index = parse_index_symbol(index_value);

    return parse_string_with_format(input, TG_GEOMETRY_FORMAT_HEX, index);
}

.parse_wkb(*args) ⇒ Object 



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# File 'ext/tg_geometry/tg_geometry_ext.c', line 1081

static VALUE rb_tg_geometry_parse_wkb(int argc, VALUE *argv, VALUE self) {
    VALUE input;
    VALUE kwargs;
    VALUE index_value;
    enum tg_index index;

    (void)self;
    rb_scan_args(argc, argv, "1:", &input, &kwargs);
    {
        ID allowed[] = {id_index};
        validate_keywords(kwargs, allowed, sizeof(allowed) / sizeof(allowed[0]));
    }

    index_value = kwargs_value(kwargs, id_index, ID2SYM(id_ystripes));
    index = parse_index_symbol(index_value);

    return parse_string_with_format(input, TG_GEOMETRY_FORMAT_WKB, index);
}

.parse_wkt(*args) ⇒ Object 



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# File 'ext/tg_geometry/tg_geometry_ext.c', line 1062

static VALUE rb_tg_geometry_parse_wkt(int argc, VALUE *argv, VALUE self) {
    VALUE input;
    VALUE kwargs;
    VALUE index_value;
    enum tg_index index;

    (void)self;
    rb_scan_args(argc, argv, "1:", &input, &kwargs);
    {
        ID allowed[] = {id_index};
        validate_keywords(kwargs, allowed, sizeof(allowed) / sizeof(allowed[0]));
    }

    index_value = kwargs_value(kwargs, id_index, ID2SYM(id_ystripes));
    index = parse_index_symbol(index_value);

    return parse_string_with_format(input, TG_GEOMETRY_FORMAT_WKT, index);
}

.point(x_value, y_value) ⇒ Object 



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# File 'ext/tg_geometry/tg_geometry_ext.c', line 1177

static VALUE rb_tg_geometry_point(VALUE self, VALUE x_value, VALUE y_value) {
    double x = NUM2DBL(x_value);
    double y = NUM2DBL(y_value);
    struct tg_point point;

    (void)self;
    check_finite_double(x, "x");
    check_finite_double(y, "y");

    point.x = x;
    point.y = y;
    return wrap_constructed_geom(tg_geom_new_point(point));
}

.point_m(x_value, y_value, m_value) ⇒ Object 



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# File 'ext/tg_geometry/tg_geometry_ext.c', line 1207

static VALUE rb_tg_geometry_point_m(VALUE self, VALUE x_value, VALUE y_value, VALUE m_value) {
    double x = NUM2DBL(x_value);
    double y = NUM2DBL(y_value);
    double m = NUM2DBL(m_value);
    struct tg_point point;

    (void)self;
    check_finite_double(x, "x");
    check_finite_double(y, "y");
    check_finite_double(m, "m");

    point.x = x;
    point.y = y;
    return wrap_constructed_geom(tg_geom_new_point_m(point, m));
}

.point_z(x_value, y_value, z_value) ⇒ Object 



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# File 'ext/tg_geometry/tg_geometry_ext.c', line 1191

static VALUE rb_tg_geometry_point_z(VALUE self, VALUE x_value, VALUE y_value, VALUE z_value) {
    double x = NUM2DBL(x_value);
    double y = NUM2DBL(y_value);
    double z = NUM2DBL(z_value);
    struct tg_point point;

    (void)self;
    check_finite_double(x, "x");
    check_finite_double(y, "y");
    check_finite_double(z, "z");

    point.x = x;
    point.y = y;
    return wrap_constructed_geom(tg_geom_new_point_z(point, z));
}

.point_zm(x_value, y_value, z_value, m_value) ⇒ Object 



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# File 'ext/tg_geometry/tg_geometry_ext.c', line 1223

static VALUE rb_tg_geometry_point_zm(VALUE self, VALUE x_value, VALUE y_value, VALUE z_value,
                                     VALUE m_value) {
    double x = NUM2DBL(x_value);
    double y = NUM2DBL(y_value);
    double z = NUM2DBL(z_value);
    double m = NUM2DBL(m_value);
    struct tg_point point;

    (void)self;
    check_finite_double(x, "x");
    check_finite_double(y, "y");
    check_finite_double(z, "z");
    check_finite_double(m, "m");

    point.x = x;
    point.y = y;
    return wrap_constructed_geom(tg_geom_new_point_zm(point, z, m));
}

.polygon(*args) ⇒ Object 



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# File 'ext/tg_geometry/tg_geometry_ext.c', line 1514

static VALUE rb_tg_geometry_polygon(int argc, VALUE *argv, VALUE self) {
    VALUE exterior_value;
    VALUE kwargs;
    VALUE holes_value;
    VALUE index_value;
    VALUE srid_value;
    enum tg_index index;
    bool has_srid;
    int srid;
    struct tg_poly *poly;
    struct tg_geom *geom;

    (void)self;
    rb_scan_args(argc, argv, "1:", &exterior_value, &kwargs);
    {
        ID allowed[] = {id_holes, id_index, id_srid};
        validate_keywords(kwargs, allowed, sizeof(allowed) / sizeof(allowed[0]));
    }

    holes_value = kwargs_value(kwargs, id_holes, Qnil);
    index_value = kwargs_value(kwargs, id_index, ID2SYM(id_ystripes));
    srid_value = kwargs_value(kwargs, id_srid, Qnil);
    index = parse_index_symbol(index_value);
    has_srid = parse_srid_option(srid_value, &srid);

    poly = build_poly_from_ruby(exterior_value, holes_value, index);
    geom = tg_geom_new_polygon(poly);
    tg_poly_free(poly);

    return wrap_constructed_geom_with_srid(geom, has_srid, srid);
}

Instance Method Details

#containing_geom_ids(geom) ⇒ Array<Object>

Stored geometries for which tg_geom_contains(stored, query) is true. Direction: stored contains query. Boundary points are not contained.

Returns:

  • (Array<Object>) —

    ids in insertion order




# File 'lib/tg/geometry.rb', line 53

#covering_geom_ids(geom) ⇒ Array<Object>

Stored geometries for which tg_geom_covers(stored, query) is true. Direction: stored covers query. Boundary points are covered.

Returns:

  • (Array<Object>) —

    ids in insertion order




# File 'lib/tg/geometry.rb', line 53

#intersecting_geom_ids(geom) ⇒ Array<Object>

Stored geometries for which tg_geom_intersects(stored, query) is true.

Returns:

  • (Array<Object>) —

    ids in insertion order




# File 'lib/tg/geometry.rb', line 53

#nearest_segment(x, y) ⇒ TG::Geometry::NearestSegment?

Returns planar Euclidean.

Returns:




# File 'lib/tg/geometry.rb', line 74

#srid ⇒ Integer?

Returns SRID metadata; not used for reprojection.

Returns:

  • (Integer, nil) —

    SRID metadata; not used for reprojection




# File 'lib/tg/geometry.rb', line 43

#to_ewkb(srid: nil) ⇒ String

Writes EWKB with the SRID flag set. Uses explicit srid: when provided, otherwise Geom#srid. Raises if no SRID is available. to_wkb remains plain.

Returns:

  • (String) —

    frozen ASCII-8BIT EWKB string




# File 'lib/tg/geometry.rb', line 43