[3.1.1、建模——单面](2.1%E3%80%81%E5%BB%BA%E6%A8%A1%EF%BC%9A%E5%8D%95-%E5%8F%8C%E9%9D%A2-%E6%88%BF%E5%9C%B0%E4%BA%A7%E5%BD%A9%E5%B9%B3%E5%9B%BE/2.1.1%E3%80%81%E5%BB%BA%E6%A8%A1%E2%80%94%E2%80%94%E5%8D%95%E9%9D%A2.md) [3.1.2、建模——双面](2.1%E3%80%81%E5%BB%BA%E6%A8%A1%EF%BC%9A%E5%8D%95-%E5%8F%8C%E9%9D%A2-%E6%88%BF%E5%9C%B0%E4%BA%A7%E5%BD%A9%E5%B9%B3%E5%9B%BE/2.1.2%E3%80%81%E5%BB%BA%E6%A8%A1%E2%80%94%E2%80%94%E5%8F%8C%E9%9D%A2.md) [3.1.3、建模——平面/房地产彩平图](2.1%E3%80%81%E5%BB%BA%E6%A8%A1%EF%BC%9A%E5%8D%95-%E5%8F%8C%E9%9D%A2-%E6%88%BF%E5%9C%B0%E4%BA%A7%E5%BD%A9%E5%B9%B3%E5%9B%BE/2.1.3%E3%80%81%E5%BB%BA%E6%A8%A1%E2%80%94%E2%80%94%E6%88%BF%E5%9C%B0%E4%BA%A7%E5%BD%A9%E5%B9%B3%E5%9B%BE.md)