http://www.raworkshop.com The new Ra Workshop version 3.2 will contain new shapes. You will be able to create arches and circles windows from segments. This new feature adds new design options to Ra Workshop.
Ra Workshop is a uPVC, Aluminum or wood window and door design software.
Ra Workshop can use aluminum, vinyl (uPVC) or wood profiles and is able to compute a great variety of products (windows, doors, shutters, roller shutters, insect screens, roller insect screens, panels, etc.).