Added has_geometry method and fixing conda-package issues (#39)

* fixed issues with cmake and numba in conda package and successfully built on linux

* small updates to windows version

Author: brendancol

conda-recipe/meta.yaml

@@ -1,5 +1,5 @@
 {% set name = "rtxpy" %}
-{% set version = "0.0.4" %}
+{% set version = "0.0.5" %}
 
 package:
   name: {{ name|lower }}
@@ -20,8 +20,8 @@ requirements:
   build:
     - {{ compiler('c') }}
     - {{ compiler('cxx') }}
-    - cmake
-    - git
+    - conda-forge::cmake
+    - conda-forge::git
     - cuda-nvcc
     - cuda-cudart-dev
     - cuda-nvrtc-dev
@@ -39,6 +39,7 @@ requirements:
     - python >=3.10
     - numpy >=1.21,<3  # [py<313]
     - numpy >=2.0,<3  # [py>=313]
+    - numba >=0.56
     - cupy >=12.0
     - cuda-version >=12
     - __cuda  # [linux]

rtxpy/rtx.py

@@ -1142,6 +1142,18 @@ def get_geometry_count(self) -> int:
         """
         return len(_state.gas_entries)
 
+    def has_geometry(self, geometry_id: str) -> bool:
+        """
+        Check if a geometry with the given ID exists.
+
+        Args:
+            geometry_id: The ID of the geometry to check.
+
+        Returns:
+            True if the geometry exists, False otherwise.
+        """
+        return geometry_id in _state.gas_entries
+
     def clear_scene(self) -> None:
         """
         Remove all geometries and reset to single-GAS mode.

rtxpy/tests/test_simple.py

@@ -929,6 +929,36 @@ def test_cupy_buffers_multi_gas(test_cupy):
     np.testing.assert_almost_equal(hits_np[0], 10.0, decimal=1)
 
 
+@pytest.mark.parametrize("test_cupy", [False, True])
+def test_has_geometry(test_cupy):
+    """Test has_geometry() query method."""
+    if test_cupy:
+        if not has_cupy:
+            pytest.skip("cupy not available")
+        import cupy
+        backend = cupy
+    else:
+        backend = np
+
+    rtx = RTX()
+    rtx.clear_scene()
+
+    # Should not exist initially
+    assert rtx.has_geometry("test_geo") == False
+
+    # Add geometry
+    verts = backend.float32([0, 0, 0, 1, 0, 0, 0.5, 1, 0])
+    tris = backend.int32([0, 1, 2])
+    rtx.add_geometry("test_geo", verts, tris)
+
+    # Should exist now
+    assert rtx.has_geometry("test_geo") == True
+
+    # Remove and check again
+    rtx.remove_geometry("test_geo")
+    assert rtx.has_geometry("test_geo") == False
+
+
 # =============================================================================
 # Primitive ID and Instance ID Tests
 # =============================================================================
@@ -946,7 +976,6 @@ def test_primitive_ids_single_gas(test_cupy):
 
     rtx = RTX()
     rtx.clear_scene()
-
     # Create a mesh with 2 triangles (a quad)
     # Triangle 0: vertices 0,1,2 (bottom-left triangle)
     # Triangle 1: vertices 2,1,3 (top-right triangle)