Step 1: Make pictures. First use Baidu to search for a map you need (you can make a map of provinces or even the whole country according to your own needs), or you can take screenshots directly on Baidu map.
Open Photoshop, or if you have other mapping software, start making hand-drawn maps.
You can create pictures at will, and everyone has their own characteristics. I won't go into the details of making pictures here. Please note that the picture you draw must be consistent with the range you choose!
In the process of drawing, make sure that the drawing content is highly coincident with the base map! We must ensure that the pictures overlap here, and we can't align the pictures through correction and calibration in the later stage! Be careful!
After drawing, save the picture. Please note that the generated picture must be consistent with the range you selected! In other words, if there is a white edge, it needs to be preserved.
Step 2: Create a new excel file and insert the map pictures we downloaded. Then we will use the inserted map as the "base plate" and start to draw by hand. It doesn't matter if the map is small. We can increase the display ratio of excel by holding down ctrl+ middle mouse button to scroll at the same time (or clicking the zoom tool directly), but we should pay attention to the fact that the map in the picture should be displayed in your excel as a whole, otherwise it can't be described later.
Everyone must remember that every city is a sketch, and the final merged graphics are what we want. This workload is relatively large, so everyone should have enough patience. That's what I did. You can also try to find a map of your own province.