I have the following ideas:
Roof outer boundaries are finally connected to the fixed inner bounds by snapping, fixed outer bounds (gutters). And then by allowing a flexible sweeping of other (unfixed) edges framework of closed polygons having their symmetries preserved are created. Later, subsequent successive line intersection leads to closed polygons.
As each idea interacts with the next, I am having trouble linking them.
Here, I have my best try with while:
While allowing a flexible sweeping of (outer) unfixed edges, fixed bounds (gutters) are snapped to the fixed inner bounds to construct framework of closed polygons having their preserved symmetries. Successive intersection of adjacent lines are then formed a closed polygon.
Can anyone help me to make a complete sentence which would be accepted in an academic field?