Introduce the GeoLineStrings archetype and support it in the map view

crates/store/re_types/definitions/rerun/archetypes/geo_line_strings.fbs

@@ -0,0 +1,38 @@
+namespace rerun.archetypes;
+
+// ---
+
+/// Geospatial line strings with positions expressed in [EPSG:4326](https://epsg.io/4326) altitude and longitude (North/East-positive degrees), and optional colors and radii.
+///
+/// Also known as "line strips" or "polylines".
+///
+/// **Note**: Geospatial entities are experimental.
+///
+/// \example archetypes/geo_line_string_simple title="Log a geospatial line string"
+// TODO(ab): add screenshot
+table GeoLineStrings (
+  "attr.rust.derive": "PartialEq",
+  "attr.rust.new_pub_crate",
+  "attr.docs.category": "Geospatial",
+  "attr.docs.view_types": "MapView",
+  "attr.docs.unreleased"
+) {
+  // --- Required ---
+
+  /// The line strings, expressed in [EPSG:4326](https://epsg.io/4326) coordinates (North/East-positive degrees).
+  line_strings: [rerun.components.GeoLineString] ("attr.rerun.component_required", order: 1000);
+
+  // --- Recommended ---
+
+  /// Optional radii for the line strings.
+  radii: [rerun.components.Radius] ("attr.rerun.component_recommended", nullable, order: 2000);
+
+  /// Optional colors for the line strings.
+  ///
+  /// \py The colors are interpreted as RGB or RGBA in sRGB gamma-space,
+  /// \py As either 0-1 floats or 0-255 integers, with separate alpha.
+  colors: [rerun.components.Color] ("attr.rerun.component_recommended", nullable, order: 2100);
+
+  //TODO(ab): add `Label` and  `ShowLabels` components
+  //TODO(ab): add `Altitude` component
+}

crates/store/re_types/definitions/rerun/archetypes/geo_points.fbs

@@ -1,20 +1,21 @@
 namespace rerun.archetypes;
 
-// ---
-
-/// Geospatial points with positions expressed in EPSG:4326 altitude and longitude, and optional colors and radii.
+/// Geospatial points with positions expressed in [EPSG:4326](https://epsg.io/4326) latitude and longitude (North/East-positive degrees), and optional colors and radii.
 ///
 /// **Note**: Geospatial entities are experimental.
-// TODO(ab): add snippet and screenshot
+///
+/// \example archetypes/geo_point_simple title="Log a geospatial point" image="https://static.rerun.io/geopoint_simple/146b0783c5aea1c1b6a9aab938879942b7c820e2/1200w.png"
+// TODO(ab): screenshot
 table GeoPoints (
   "attr.rust.derive": "PartialEq",
+  "attr.rust.new_pub_crate",
   "attr.docs.category": "Geospatial",
   "attr.docs.view_types": "MapView",
   "attr.docs.unreleased"
 ) {
   // --- Required ---
 
-  /// The EPSG:4326 coordinates for the points.
+  /// The [EPSG:4326](https://epsg.io/4326) coordinates for the points (North/East-positive degrees).
   positions: [rerun.components.LatLon] ("attr.rerun.component_required", order: 1000);
 
   // --- Recommended ---

crates/store/re_types/definitions/rerun/components/geo_line_string.fbs

@@ -0,0 +1,16 @@
+
+namespace rerun.components;
+
+// ---
+
+/// A geospatial line string expressed in [EPSG:4326](https://epsg.io/4326) latitude and longitude (North/East-positive degrees).
+table GeoLineString (
+  "attr.python.aliases": "datatypes.DVec2DArrayLike, npt.NDArray[np.float64]",
+  "attr.python.array_aliases": "npt.NDArray[np.float64]",
+  "attr.rust.derive": "Default, PartialEq",
+  "attr.rust.repr": "transparent",
+  "attr.cpp.no_field_ctors",
+  "attr.docs.unreleased"
+) {
+  lat_lon: [rerun.datatypes.DVec2D] (order: 100);
+}

crates/store/re_types/definitions/rerun/components/latlon.fbs

@@ -3,7 +3,7 @@ namespace rerun.components;
 
 // ---
 
-/// A geographical position expressed in EPSG:4326 latitude and longitude.
+/// A geospatial position expressed in [EPSG:4326](https://epsg.io/4326) latitude and longitude (North/East-positive degrees).
 struct LatLon (
   "attr.python.aliases": "npt.NDArray[np.float32], Sequence[float], Tuple[float, float]",
   "attr.python.array_aliases": "npt.NDArray[np.float32], Sequence[float]",

crates/store/re_types/src/archetypes/geo_line_strings_ext.rs

@@ -0,0 +1,11 @@
+use super::GeoLineStrings;
+
+impl GeoLineStrings {
+    /// Create a new `GeoLineStrings` from [EPSG:4326](https://epsg.io/4326) latitude and longitude (North/East-positive degrees).
+    #[inline]
+    pub fn from_lat_lon(
+        line_strings: impl IntoIterator<Item = impl Into<crate::components::GeoLineString>>,
+    ) -> Self {
+        Self::new(line_strings)
+    }
+}