Refactor Cutout Tool to Use World Space Edge Length

- Replaced the Mesh Detail parameter with a new Edge Length property to define cutout sampling in physical units.
- Introduced Minimum Relative Edge Length preference to control effective spacing based on the bounding box of the cutout content.
- Updated tests to validate the new edge length functionality and ensure consistent behavior across different resolutions and canvas sizes.
- Removed deprecated parameters and adjusted related properties to align with the new edge length implementation.
- Enhanced geometry sampling logic to utilize effective world spacing for both standard and fine outline modes.

tests/anyimage/operators/test_cutout_fine_mesh.py

@@ -156,13 +156,13 @@ def test_closed_mode_uses_original_geometry_without_fine_import(monkeypatch):
     )
     alpha = np.ones((60, 80))
     actual = g.build_base_shape(
-        None, source, 16, alpha, (0, 0, 80, 60), fine_outline=False
+        None, source, 0.4, alpha, (0, 0, 80, 60), fine_outline=False
     )
-    contours = g.extract_cutout_contours(alpha, 16, threshold=0.9)
+    contours = g.extract_cutout_contours(alpha, 5, threshold=0.9)
     expected = g.cutout_domain(
         contours,
         image_empty_bounds(source),
-        g.cutout_sampling_spacing(source, 16),
+        0.4,
         ((1.0, 0.0), (0.0, 1.0)),
     )
     np.testing.assert_array_equal(actual.vertices, expected[0])
@@ -195,7 +195,7 @@ def test_relaxation_reduces_sampling_error_without_adding_points():
     contours = [np.asarray(((4.0, 4.0), (194.0, 4.0), (194.0, 104.0), (4.0, 104.0)))]
     spine = np.empty((0, 2))
     original = g.uniform_interior_points_for_contours(contours, 16)
-    relaxed = fine.relax_points(contours, spine, (110, 200), 16)
+    relaxed = fine.relax_points(contours, spine, 16)
     yy, xx = np.mgrid[6:104:4, 6:194:4]
     samples = np.column_stack((xx.ravel() + 0.5, yy.ravel() + 0.5))