Collect all BRep Bodies to Create a Pattern

Lawsmith408 — Tue, 16 Oct 2018 01:47:11 GMT

Hopefully this is an easy one!

I'm trying to create a 3D array of BRep cube bodies. I want the array to be 3 x 4 x 5 bodies (60 bodies in total).

I'm using a "rectangular pattern" example to create a 3 x 4 array of cubes in the XY plane. Then, I want to collect all the cubes in the root component do a 1D pattern in the Z direction.

I can't figure out how to actually add all the bodies from the first rectangular pattern to the input objects for the second 1D pattern operation. I see a way to grab one of them using rootComp.BRepbodies.item(n) where 0<n+1<11. Is there something I can use to add all the existing bodies at once? I tried rootComp.BRepbodies.item(*), rootComp.BRepbodies.item(:), rootComp.BRepbodies.item(all), but those didn't seem to work.

here is my code:

import adsk.core, adsk.fusion, traceback

def run(context):

ui = None

try:

app = adsk.core.Application.get()

ui = app.userInterface

# Create a document.

doc = app.documents.add(adsk.core.DocumentTypes.FusionDesignDocumentType)

product = app.activeProduct

design = adsk.fusion.Design.cast(product)

# Get the root component of the active design.

rootComp = design.rootComponent

# Create sketch

sketches = rootComp.sketches

sketch = sketches.add(rootComp.xZConstructionPlane)

lines = sketch.sketchCurves.sketchLines;

# Draw a rectangle by two points.

recLines = lines.addTwoPointRectangle(adsk.core.Point3D.create(0, 0, 0), adsk.core.Point3D.create(1, 1, 0))

# Get the profile defined by the circle.

prof = sketch.profiles.item(0)

# Create an extrusion input

extrudes = rootComp.features.extrudeFeatures

extInput = extrudes.createInput(prof, adsk.fusion.FeatureOperations.NewBodyFeatureOperation)

# Define that the extent is a distance extent of 5 cm.

distance = adsk.core.ValueInput.createByReal(1)

extInput.setDistanceExtent(False, distance)

# Create the extrusion.

ext = extrudes.add(extInput)

# Get the body created by extrusion

body = ext.bodies.item(0)

# Create input entities for rectangular pattern

inputEntites = adsk.core.ObjectCollection.create()

inputEntites.add(body)

# Get x and y axes for rectangular pattern

xAxis = rootComp.xConstructionAxis

yAxis = rootComp.yConstructionAxis

zAxis = rootComp.zConstructionAxis

# Quantity and distance

quantityOne = adsk.core.ValueInput.createByString('3')

distanceOne = adsk.core.ValueInput.createByString('1 cm')

quantityTwo = adsk.core.ValueInput.createByString('4')

distanceTwo = adsk.core.ValueInput.createByString('1 cm')

quantityThree = adsk.core.ValueInput.createByString('5')

distanceThree = adsk.core.ValueInput.createByString('1 cm')

# Create the input for rectangular pattern

rectangularPatterns = rootComp.features.rectangularPatternFeatures

rectangularPatternInput = rectangularPatterns.createInput(inputEntites, xAxis, quantityOne, distanceOne, adsk.fusion.PatternDistanceType.SpacingPatternDistanceType)

# Set the data for second direction

rectangularPatternInput.setDirectionTwo(yAxis, quantityTwo, distanceTwo)

# Create the rectangular pattern

rectangularFeature = rectangularPatterns.add(rectangularPatternInput)

# Second pattern

inputEntites2 = adsk.core.ObjectCollection.create()

inputEntites2.add(rootComp.bRepBodies.item(all))

rectangularPatternInput2 = rectangularPatterns.createInput(inputEntites2, zAxis, quantityThree, distanceThree, adsk.fusion.PatternDistanceType.SpacingPatternDistanceType)

rectangularFeature2 = rectangularPatterns.add(rectangularPatternInput2)

except:

if ui:

ui.messageBox('Failed:\n{}'.format(traceback.format_exc()))

Re: Collect all BRep Bodies to Create a Pattern

goyals — Tue, 16 Oct 2018 06:55:58 GMT

I think you are looking for a method on BrepBodies which returns a collection object containing all bodies. No such method exists at present and only way is to create a collection object explicitly and add each body one by one.

Re: Collect all BRep Bodies to Create a Pattern

Lawsmith408 — Tue, 16 Oct 2018 14:01:34 GMT

Yes, that's exactly what I was looking for. I found an example of adding bodies one by one in a for loop - thanks for the help.

for k in range(0, rootComp.bRepBodies.count):

inputEntites2.add(rootComp.bRepBodies.item(k))

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Collect all BRep Bodies to Create a Pattern

Re: Collect all BRep Bodies to Create a Pattern

Re: Collect all BRep Bodies to Create a Pattern