#12718 Add diameter and roughness specification for MD intervals

Implements interval-based diameter and roughness configuration for MSW completions
while maintaining backward compatibility with existing single-value approach.

- Add RimDiameterRoughnessInterval class for individual MD intervals
- Add RimDiameterRoughnessIntervalCollection for managing interval collections
- Extend RimMswCompletionParameters with interval-specific mode support
- Support both metric and field unit systems
- Provide validation and overlap detection for intervals

GrpcInterface/Python/rips/PythonExamples/wells_and_fractures/modeled_well_path.py

@@ -68,6 +68,17 @@ completions_settings.group_name_for_export = "msj"
 completions_settings.well_type_for_export = "GAS"
 completions_settings.update()  # Commit updates back to ResInsight
 
+# Add diameter roughness intervals for interval-specific configuration
+interval1 = completions_settings.add_diameter_roughness_interval(
+    start_md=3200, end_md=3300, diameter=0.18, roughness_factor=1.5e-5
+)
+interval2 = completions_settings.add_diameter_roughness_interval(
+    start_md=3300, end_md=3400, diameter=0.16, roughness_factor=2.0e-5
+)
+print(
+    f"Added diameter roughness intervals: {interval1.start_md}-{interval1.end_md}m and {interval2.start_md}-{interval2.end_md}m"
+)
+
 # Optionally update the MSW settings
 msw_settings = well_path.msw_settings()
 msw_settings.custom_values_for_lateral = False

GrpcInterface/Python/rips/tests/test_diameter_roughness_intervals.py

@@ -0,0 +1,46 @@
+import rips
+
+
+def test_diameter_roughness_intervals(rips_instance, initialize_test):
+    """Test the new diameter roughness intervals Python GRPC interface"""
+
+    # Create a test well
+    well_path_coll = rips_instance.project.well_path_collection()
+    well_path = well_path_coll.add_new_object(rips.ModeledWellPath)
+    well_path.name = "Test Well for Diameter Intervals"
+
+    completions_settings = well_path.completion_settings()
+    assert completions_settings is not None, "Completion settings should not be None"
+
+    # Test our new method - create first interval
+    interval1 = completions_settings.add_diameter_roughness_interval(
+        start_md=100, end_md=200, diameter=0.15, roughness_factor=1e-5
+    )
+
+    # Assertions to verify the first interval
+    assert interval1 is not None, "First interval should not be None"
+    assert interval1.start_md == 100
+    assert interval1.end_md == 200
+    assert interval1.diameter == 0.15
+    assert interval1.roughness_factor == 1e-5
+
+    # Test creating a second interval with different values
+    interval2 = completions_settings.add_diameter_roughness_interval(
+        start_md=200, end_md=300, diameter=0.12, roughness_factor=2e-5
+    )
+
+    # Assertions to verify the second interval
+    assert interval2 is not None, "Second interval should not be None"
+    assert interval2.start_md == 200
+    assert interval2.end_md == 300
+    assert interval2.diameter == 0.12
+    assert interval2.roughness_factor == 2e-5
+
+    # Test default values
+    interval3 = completions_settings.add_diameter_roughness_interval()
+
+    assert interval3 is not None, "Third interval with defaults should not be None"
+    assert interval3.start_md == 0.0
+    assert interval3.end_md == 100.0
+    assert interval3.diameter == 0.152
+    assert interval3.roughness_factor == 1e-5