How to draw the grounding plane of building electrical design foundation?

1. After opening the main interface of CAD, directly select the line button.

2. Next, to determine a range of areas, you need to click to draw a chart and select objects.

3. If there is no problem at this time, please click the Fill button.

4. In this way, the corresponding effect diagram will be generated, and the grounding scheme of the foundation will be realized through the electrical design of the building.