I'm experimenting with different uses of the interference calculation in Fusion 360.
One example I'm trying to create is generating the interference of an interfernce body. For example if you create a venn diagram with 3 triangulated circles you get an interior intersection of the 3 circles and 3 outer portions that are the intersection of only two models. I try to create this using this code (below) but I get a InternalValidationError. What is causing this error. I have similar issues in other scripts wheverer I try to calculate and interference multiple times.
def run(context):
ui = None
try:
global app
app = adsk.core.Application.get()
global ui
ui = app.userInterface
# Create a document.
doc = app.documents.add(adsk.core.DocumentTypes.FusionDesignDocumentType)
product = app.activeProduct
design = adsk.fusion.Design.cast(product)
design.designType = adsk.fusion.DesignTypes.DirectDesignType
# Get the root component of the active design.
rootComp = design.rootComponent
features = rootComp.features
# Create sketch circle on the xz plane.
sketches = rootComp.sketches
sketch = sketches.add(rootComp.xZConstructionPlane)
sketchCircles = sketch.sketchCurves.sketchCircles
centerPoint = adsk.core.Point3D.create(0, 0, 0)
sketchCircles.addByCenterRadius(centerPoint, 10)
# Create a collection of entities for extrude
entities0 = adsk.core.ObjectCollection.create()
entities0.add(sketch.profiles.item(0))
# Create a cylinder with ExtrudeFeature using the profile above.
extrudeFeats = features.extrudeFeatures
extrudeFeatureInput = extrudeFeats.createInput(entities0, adsk.fusion.FeatureOperations.NewBodyFeatureOperation)
extrudeFeatureInput.isSolid = True
extrudeFeatureInput.setDistanceExtent(False, adsk.core.ValueInput.createByReal(2.5))
extrudeFeature = extrudeFeats.add(extrudeFeatureInput)
# Create second body to do interference
sketch = sketches.add(rootComp.xZConstructionPlane)
sketchCircles = sketch.sketchCurves.sketchCircles
centerPoint = adsk.core.Point3D.create(5, 0, 0)
sketchCircles.addByCenterRadius(centerPoint, 10)
entities0.clear()
entities0.add(sketch.profiles.item(0))
# Create a cylinder with ExtrudeFeature using the profile above.
extrudeFeatureInput = extrudeFeats.createInput(entities0, adsk.fusion.FeatureOperations.NewBodyFeatureOperation)
extrudeFeatureInput.isSolid = True
extrudeFeatureInput.setDistanceExtent(False, adsk.core.ValueInput.createByReal(2.5))
extrudeFeature = extrudeFeats.add(extrudeFeatureInput)
sketch = sketches.add(rootComp.xZConstructionPlane)
sketchCircles = sketch.sketchCurves.sketchCircles
centerPoint = adsk.core.Point3D.create(0, 5, 0)
sketchCircles.addByCenterRadius(centerPoint, 10)
entities0.clear()
entities0.add(sketch.profiles.item(0))
# Create a cylinder with ExtrudeFeature using the profile above.
extrudeFeatureInput = extrudeFeats.createInput(entities0, adsk.fusion.FeatureOperations.NewBodyFeatureOperation)
extrudeFeatureInput.isSolid = True
extrudeFeatureInput.setDistanceExtent(False, adsk.core.ValueInput.createByReal(2.5))
extrudeFeature = extrudeFeats.add(extrudeFeatureInput)
# Create a collection of bodies
bodies = adsk.core.ObjectCollection.create()
for body in rootComp.bRepBodies:
bodies.add(body)
# Create InterferenceInput
interferencInput = design.createInterferenceInput(bodies)
# Analyze interference
results = design.analyzeInterference(interferencInput)
results.createBodies(True)
intersection = rootComp.occurrences.item(0)
newBodies = adsk.core.ObjectCollection.create()
for body in intersection.component.bRepBodies:
newBodies.add(body)
#get next level of interference
interferenceInput0 = design.createInterferenceInput(newBodies)
results1 = design.analyzeInterference(interferenceInput0)
results.createBodies(True)
