You can use the Midpoint constraint to connect an endpoint with the center of a line. This constraint ensures that the connected endpoint remains at the center of the line even if the length of the line changes.
To create a Midpoint constraint:
- Select an endpoint and line.
- Select Midpoint from the constraints menu or drag an endpoint onto the center of a line.
Learn more by watching the video below:
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Endpoints that are connected to elements with a Midpoint constraint are shown with a filled center. For more information, visit States of sketch points.