閉域構成図の追加

[tbrand]

Is your feature request related to a problem? Please describe the background.
A clear and concise description of the problem.
For example, "When I always... I operate... but it becomes..."

Feature you want to add or improve
Please explain here

-- Please delete everything below this line when creating an Issue. --

Please make the Issue title as descriptive as possible at a glance.

• Not Good: About xxx => Good: Feature request to do yyy with xxx
• Not Good: Improvement request for xxx => Good: Want to be able to do yyy with xxx