In the same condition, the direction of startAngle are changed depend on that which is bigger in both radius. Are there any reasonable explanation for it? I hope it’s a bug which can be fixed.
A pair of pull requests has been made to address this issue. The one below addresses the name of this node, but the behavior should be updated soon so that the ellipsearc always starts at the positive x-axis for the zero angle. https://github.com/DynamoDS/Dynamo/pull/6299