This is super useful for things like lot corners, turning radii, or softening building footprints.
Here’s what’s happening in each node:
Read Feature
• Brings in a polygon or polyline (your lot, building footprint, etc.).
• This is the shape you want to soften.Input Parameter – Corner Radii
• A list of numbers you can change.
• Each number = the radius of a rounded corner.Fillet Corners node
• Takes the shape and replaces sharp corners with curves.
• The radius list is applied in order to each corner.
• The text “fillet” means smooth rounded corners (not chamfer).Write Features
• Outputs the new rounded shape.
Here’s a simple step‑by‑step.
Create a new blank flow, and assign it to your geometry.
(New flows always start with the read features and write features nodes).
Add the Fillet Corners node
• Double‑click the canvas to open the node search.
• Search for Fillet Corners and drag it onto the canvas.Connect the read feature
• Drag a wire from Read Feature → F on the Fillet Corners node.Add the radius list
• Add an Input Parameter.
• Set:Name: Corner Radii
Type: Number
Size: List
Click "Edit" to add defaults.
Click the +, and then Input at least one number in the defaults.
Connect the input node to R[] on the Fillet Corners node.
Set the corner type
• Inside the Fillet Corners node, set the corner type to fillet.Output the result
• Connect the R output from Fillet Corners → F[] on Write Features.
That’s it — you’ve built a corner‑rounding flow.
Edit the Settings
When you assign the flow to a geometry, the Corner Radii settings will show in the properties palette. Click Manage to change the corner radii, add more, or adjust the pattern.
