Codegen/IDL 5: auto-generated Python code for Points2D (#2374)

The auto-generated Python code, and nothing else.

Hand written tests and extensions (including the actual body of the
mixins!) will make an appearance in follow-up PRs.

---

Codegen/IDL PR series:
- #2362
- #2363
- #2369
- #2370 
- #2374 
- #2375 
- #2410
- #2432

---------

Co-authored-by: Andreas Reich <r_andreas2@web.de>

crates/re_types/definitions/rerun/archetypes/points2d.fbs

@@ -10,6 +10,7 @@ namespace rerun.archetypes;
 // TODO(#2371): archetype IDL definitions must always be tables
 // TODO(#2372): archetype IDL definitions must refer to objects of kind component
 // TODO(#2373): `attr.rerun.component_required` implies `required`
+// TODO(#2427): distinguish optional vs. recommended in language backends
 
 /// A 2D point cloud with positions and optional colors, radii, labels, etc.
 table Points2D (

crates/re_types/source_hash.txt

@@ -1,4 +1,4 @@
 # This is a sha256 hash for all direct and indirect dependencies of this crate's build script.
 # It can be safely removed at anytime to force the build script to run again.
 # Check out build.rs to see how it's computed.
-95c13226f31d47e4639e155fc80ee6830579c50e38ee1d997b4bda4d23ba03b6
+95c13226f31d47e4639e155fc80ee6830579c50e38ee1d997b4bda4d23ba03b6

crates/re_types_builder/src/codegen/python.rs

@@ -323,10 +323,10 @@ impl QuotedObject {
         if obj.kind == ObjectKind::Archetype {
             code.push_text(quote_builder_from_obj(objects, obj), 1, 4);
         } else {
-            code.push_text(quote_aliases_from_object(obj), 1, 4);
+            code.push_text(quote_aliases_from_object(obj), 1, 0);
         }
 
-        code.push_text(quote_arrow_support_from_obj(arrow_registry, obj), 1, 4);
+        code.push_text(quote_arrow_support_from_obj(arrow_registry, obj), 1, 0);
 
         let mut filepath = PathBuf::from(filepath);
         filepath.set_extension("py");
@@ -402,8 +402,9 @@ impl QuotedObject {
         code.push_text(quote_str_repr_from_obj(obj), 1, 4);
         code.push_text(quote_array_method_from_obj(objects, obj), 1, 4);
         code.push_text(quote_str_method_from_obj(objects, obj), 1, 4);
-        code.push_text(quote_aliases_from_object(obj), 1, 4);
-        code.push_text(quote_arrow_support_from_obj(arrow_registry, obj), 1, 4);
+
+        code.push_text(quote_aliases_from_object(obj), 1, 0);
+        code.push_text(quote_arrow_support_from_obj(arrow_registry, obj), 1, 0);
 
         let mut filepath = PathBuf::from(filepath);
         filepath.set_extension("py");

rerun_py/pyproject.toml

@@ -102,4 +102,8 @@ required-imports = ["from __future__ import annotations"]
 # See https://github.com/rerun-io/rerun/pull/1085 for more details
 include = ["rerun_sdk.pth", "rerun_sdk/rerun_demo/colmap_fiat.rrd"]
 locked = true
-python-packages = ["rerun_sdk/rerun", "rerun_sdk/rerun_demo"]
+python-packages = [
+  "rerun_sdk/rerun",
+  "rerun_sdk/rerun2",
+  "rerun_sdk/rerun_demo",
+]

rerun_py/rerun2/__init__.py

@@ -0,0 +1,26 @@
+"""
+A shim necessary to make maturin dev builds work properly.
+
+Our maturin builds stick our package inside of a "rerun_sdk" folder
+to avoid conflicting with the non-rerun "rerun" package. In released
+builds, we include a rerun_sdk.pth file that makes things work properly,
+but that doesn't work in dev builds where maturin generates its own
+.pth file that points 1 level too high.
+
+When we encounter this file on import, we instead redirect to the
+real rerun module by adding it to the path and then, and then
+replacing our own module content with it.
+"""
+from __future__ import annotations
+
+import pathlib
+import sys
+
+real_path = pathlib.Path(__file__).parent.parent.joinpath("rerun_sdk").resolve()
+
+print(f"DEV ENVIRONMENT DETECTED! Re-importing rerun2 from: {real_path}", file=sys.stderr)
+
+sys.path.insert(0, str(real_path))
+
+del sys.modules["rerun2"]
+sys.modules["rerun2"] = __import__("rerun2")

rerun_py/rerun_sdk/rerun2/__init__.py

@@ -0,0 +1,7 @@
+# NOTE: This file was autogenerated by re_types_builder; DO NOT EDIT.
+
+from __future__ import annotations
+
+__all__ = ["Points2D"]
+
+from rerun2.archetypes import Points2D

rerun_py/rerun_sdk/rerun2/archetypes/__init__.py

@@ -0,0 +1,8 @@
+# NOTE: This file was autogenerated by re_types_builder; DO NOT EDIT.
+
+from __future__ import annotations
+
+__all__ = ["Points2D"]
+
+# NOTE: we use fully qualified paths to prevent lazy circular imports.
+from rerun2.archetypes.points2d import Points2D

rerun_py/rerun_sdk/rerun2/archetypes/points2d.py

@@ -0,0 +1,115 @@
+# NOTE: This file was autogenerated by re_types_builder; DO NOT EDIT.
+
+from __future__ import annotations
+
+__all__ = ["Points2D"]
+
+
+from dataclasses import dataclass
+
+from rerun2 import components
+
+
+@dataclass
+class Points2D:
+    """A 2D point cloud with positions and optional colors, radii, labels, etc."""
+
+    points: components.Point2DArray
+    """
+    All the actual 2D points that make up the point cloud.
+    """
+
+    radii: components.RadiusArray | None = None
+    """
+    Optional radii for the points, effectively turning them into circles.
+    """
+
+    colors: components.ColorArray | None = None
+    """
+    Optional colors for the points.
+
+    The colors are interpreted as RGB or RGBA in sRGB gamma-space,
+    As either 0-1 floats or 0-255 integers, with separate alpha.
+    """
+
+    labels: components.LabelArray | None = None
+    """
+    Optional text labels for the points.
+    """
+
+    draw_order: components.DrawOrderArray | None = None
+    """
+    An optional floating point value that specifies the 2D drawing order.
+    Objects with higher values are drawn on top of those with lower values.
+
+    The default for 2D points is 30.0.
+    """
+
+    class_ids: components.ClassIdArray | None = None
+    """
+    Optional class Ids for the points.
+
+    The class ID provides colors and labels if not specified explicitly.
+    """
+
+    keypoint_ids: components.KeypointIdArray | None = None
+    """
+    Optional keypoint IDs for the points, identifying them within a class.
+
+    If keypoint IDs are passed in but no class IDs were specified, the class ID will
+    default to 0.
+    This is useful to identify points within a single classification (which is identified
+    with `class_id`).
+    E.g. the classification might be 'Person' and the keypoints refer to joints on a
+    detected skeleton.
+    """
+
+    instance_keys: components.InstanceKeyArray | None = None
+    """
+    Unique identifiers for each individual point in the batch.
+    """
+
+    def __str__(self):
+        s = f"rr.{type(self).__name__}(\n"
+
+        from dataclasses import fields
+
+        for field in fields(self):
+            data = getattr(self, field.name)
+            datatype = getattr(data, "type", None)
+            if datatype:
+                name = datatype.extension_name
+                typ = datatype.storage_type
+                s += f"  {name}<{typ}>(\n    {data.to_pylist()}\n  )\n"
+
+        s += ")"
+
+        return s
+
+    def __repr__(self):
+        return str(self)
+
+    def __init__(
+        self,
+        points: components.Point2DArrayLike,
+        *,
+        radii: components.RadiusArrayLike | None = None,
+        colors: components.ColorArrayLike | None = None,
+        labels: components.LabelArrayLike | None = None,
+        draw_order: components.DrawOrderLike | None = None,
+        class_ids: components.ClassIdArrayLike | None = None,
+        keypoint_ids: components.KeypointIdArrayLike | None = None,
+        instance_keys: components.InstanceKeyArrayLike | None = None,
+    ) -> None:
+        # Required components
+        self.points = components.Point2DArray.from_similar(points)
+
+        # Optional components
+
+        self.radii = components.RadiusArray.from_similar(radii)
+        self.colors = components.ColorArray.from_similar(colors)
+        self.labels = components.LabelArray.from_similar(labels)
+        self.draw_order = components.DrawOrderArray.from_similar(draw_order)
+        self.class_ids = components.ClassIdArray.from_similar(class_ids)
+        self.keypoint_ids = components.KeypointIdArray.from_similar(keypoint_ids)
+        self.instance_keys = components.InstanceKeyArray.from_similar(instance_keys)

rerun_py/rerun_sdk/rerun2/components/__init__.py

@@ -0,0 +1,68 @@
+# NOTE: This file was autogenerated by re_types_builder; DO NOT EDIT.
+
+from __future__ import annotations
+
+__all__ = [
+    "ClassId",
+    "ClassIdArray",
+    "ClassIdArrayLike",
+    "ClassIdLike",
+    "ClassIdType",
+    "Color",
+    "ColorArray",
+    "ColorArrayLike",
+    "ColorLike",
+    "ColorType",
+    "DrawOrder",
+    "DrawOrderArray",
+    "DrawOrderArrayLike",
+    "DrawOrderLike",
+    "DrawOrderType",
+    "InstanceKey",
+    "InstanceKeyArray",
+    "InstanceKeyArrayLike",
+    "InstanceKeyLike",
+    "InstanceKeyType",
+    "KeypointId",
+    "KeypointIdArray",
+    "KeypointIdArrayLike",
+    "KeypointIdLike",
+    "KeypointIdType",
+    "Label",
+    "LabelArray",
+    "LabelArrayLike",
+    "LabelLike",
+    "LabelType",
+    "Point2D",
+    "Point2DArray",
+    "Point2DArrayLike",
+    "Point2DLike",
+    "Point2DType",
+    "Radius",
+    "RadiusArray",
+    "RadiusArrayLike",
+    "RadiusLike",
+    "RadiusType",
+]
+
+# NOTE: we use fully qualified paths to prevent lazy circular imports.
+from rerun2.components.class_id import ClassId, ClassIdArray, ClassIdArrayLike, ClassIdLike, ClassIdType
+from rerun2.components.color import Color, ColorArray, ColorArrayLike, ColorLike, ColorType
+from rerun2.components.draw_order import DrawOrder, DrawOrderArray, DrawOrderArrayLike, DrawOrderLike, DrawOrderType
+from rerun2.components.instance_key import (
+    InstanceKey,
+    InstanceKeyArray,
+    InstanceKeyArrayLike,
+    InstanceKeyLike,
+    InstanceKeyType,
+)
+from rerun2.components.keypoint_id import (
+    KeypointId,
+    KeypointIdArray,
+    KeypointIdArrayLike,
+    KeypointIdLike,
+    KeypointIdType,
+)
+from rerun2.components.label import Label, LabelArray, LabelArrayLike, LabelLike, LabelType
+from rerun2.components.point2d import Point2D, Point2DArray, Point2DArrayLike, Point2DLike, Point2DType
+from rerun2.components.radius import Radius, RadiusArray, RadiusArrayLike, RadiusLike, RadiusType

rerun_py/rerun_sdk/rerun2/components/class_id.py

@@ -0,0 +1,72 @@
+# NOTE: This file was autogenerated by re_types_builder; DO NOT EDIT.
+
+from __future__ import annotations
+
+__all__ = ["ClassId", "ClassIdArray", "ClassIdArrayLike", "ClassIdLike", "ClassIdType"]
+
+from dataclasses import dataclass
+from typing import Any, Sequence, Union
+
+import numpy as np
+import numpy.typing as npt
+import pyarrow as pa
+
+
+@dataclass
+class ClassId:
+    """A 16-bit ID representing a type of semantic class."""
+
+    id: int
+
+    def __array__(self):
+        return np.asarray(self.id)
+
+
+ClassIdLike = Union[ClassId, float]
+
+ClassIdArrayLike = Union[
+    ClassIdLike, Sequence[ClassIdLike], npt.NDArray[np.uint8], npt.NDArray[np.uint16], npt.NDArray[np.uint32]
+]
+
+
+# --- Arrow support ---
+
+from rerun2.components.class_id_ext import ClassIdArrayExt  # noqa: E402
+
+
+class ClassIdType(pa.ExtensionType):
+    def __init__(self: type[pa.ExtensionType]) -> None:
+        pa.ExtensionType.__init__(self, pa.uint16(), "rerun.components.ClassId")
+
+    def __arrow_ext_serialize__(self: type[pa.ExtensionType]) -> bytes:
+        # since we don't have a parameterized type, we don't need extra metadata to be deserialized
+        return b""
+
+    @classmethod
+    def __arrow_ext_deserialize__(
+        cls: type[pa.ExtensionType], storage_type: Any, serialized: Any
+    ) -> type[pa.ExtensionType]:
+        # return an instance of this subclass given the serialized metadata.
+        return ClassIdType()
+
+    def __arrow_ext_class__(self: type[pa.ExtensionType]) -> type[pa.ExtensionArray]:
+        return ClassIdArray
+
+
+pa.register_extension_type(ClassIdType())
+
+
+class ClassIdArray(pa.ExtensionArray, ClassIdArrayExt):  # type: ignore[misc]
+    @staticmethod
+    def from_similar(data: ClassIdArrayLike | None):
+        if data is None:
+            return ClassIdType().wrap_array(pa.array([], type=ClassIdType().storage_type))
+        else:
+            return ClassIdArrayExt._from_similar(
+                data,
+                mono=ClassId,
+                mono_aliases=ClassIdLike,
+                many=ClassIdArray,
+                many_aliases=ClassIdArrayLike,
+                arrow=ClassIdType,
+            )