Export several bRepBodies into one stl file

NuofanQiu — Wed, 24 Jan 2024 09:44:49 GMT

In Fusion360 API, it seems that it only support exporting geometry which to be 'an Occurrence, the root Component, or a BRepBody'.

However, I want export a BRepBodies into a stl file.

Is there any method to do that?

Because I want to use different mesh files for visualization and collision in robotics.

Also, is there any API to access the group object?

Like these two group 'visual' and 'collision' in bodies group?

Re: Export several bRepBodies into one stl file

BrianEkins — Thu, 25 Jan 2024 16:31:06 GMT

Fusion doesn't support that in the UI, but here's a script that will write all selected bodies into a single STL file. It maintains their current position. The bodies need to be selected before running the script.

Fusion does support exporting a component, which can have any number of bodies. This takes advantage of that by creating a new design, copying the selected bodies into the root component of the new design, and then exporting the root component. It then closes the new design without saving.

import adsk.core, adsk.fusion, traceback def run(context): ui = None try: app = adsk.core.Application.get() ui = app.userInterface # Get the currently selected bodies. bodies = [] tempBRep = adsk.fusion.TemporaryBRepManager.get() for selection in ui.activeSelections: if isinstance(selection.entity, adsk.fusion.BRepBody): # Create a temporary B-Rep copy of the body and add it to the list. # Creating a copy maintains the current position of the body. bodies.append(tempBRep.copy(selection.entity)) # Create a new design. newDoc = app.documents.add(adsk.core.DocumentTypes.FusionDesignDocumentType) des: adsk.fusion.Design = newDoc.products.itemByProductType('DesignProductType') # Make it a direct modeling design. No parametrics are needed so this is faster. des.designType = adsk.fusion.DesignTypes.DirectDesignType # Add the bodies to the root component of the new design. root = des.rootComponent for body in bodies: root.bRepBodies.add(body) # Export the root component as STL. exportMgr = des.exportManager stlOptions = exportMgr.createSTLExportOptions(root, 'C:/Temp/MultiBody.stl') stlOptions.sendToPrintUtility = False exportMgr.execute(stlOptions) # Close the document, without saving. newDoc.close(False) ui.messageBox('Finished.') except: if ui: ui.messageBox('Failed:\n{}'.format(traceback.format_exc()))

Re: Export several bRepBodies into one stl file

NuofanQiu — Mon, 29 Jan 2024 23:27:24 GMT

Well, thank you for your reply.
But I do hope that Fusion API can support exporting bRepBodies.

topic Re: Export several bRepBodies into one stl file in Fusion API and Scripts Forum

Export several bRepBodies into one stl file

Re: Export several bRepBodies into one stl file

Re: Export several bRepBodies into one stl file