Farmhouse Fubao Has Space.

Chapter 491 It seems a bit difficult

"Then let's go. Anyway, we're just taking a trip." Tong Anyian shrugged.

Jin Yi and Tong Anian were still riding Xiaoxue, while Gao Xuan and Han Lang followed them on horseback.

There was no village behind, only mountains and forests, and some small rivers. Tong Anian kept drawing as he walked, and he stopped only when he reached a wide river.

"It's done." Tong Anyian looked down at the terrain map in his hand. Han Lang walked over and looked at the drawing in Tong Anyian's hand.

The picture above made him a little confused and he could only look at Tong Anyian.

"What does this mean?" Han Lang asked Tong Anyian, pointing to the circles on the terrain map. Tong Anyian looked over and looked at where Han Lang was pointing.

"Remember when we passed by the woods just now? This place means the woods, and this is the river." Tong Anian explained to Han Lang one by one. Han Lang was confused and had no idea what he was doing.

Tong Anyian didn't explain much. In fact, saying that this is a topographic map is not entirely true. It can only be said that the shape is similar, but it almost identifies the mountains, rivers, and altitudes that Tong Anyian needs.

However, in order to complete the major project of building canals and diverting water, we still need zero memorized terrain.

"Is it done?" Gao Xuan looked at Tong Anyian and asked. Tong Anyian nodded. Gao Xuan breathed a sigh of relief and walked back with Tong Anyian.

On the way back, Tong Anyian checked the map again. After making sure there was no problem, she felt relieved.

Back at the gathering place, Qu Shi and the others had already arrived. When they saw Tong Anian coming back, they just hurriedly gave the picture they had drawn to Tong Anian.

Tong Anian saw that there was nothing wrong with it, and handed the picture she drew to Qushi. Qushi looked at the picture Tong Anian drew, and then looked at the picture he drew. It seemed completely different!

"An Nian, what's going on? Why are the maps we drew different?" Quzhen looked up at Tong Anyian in confusion. "You drew a map of the place we passed, and I drew a topographic map. Of course it's different." Tong Anian smiled at Qu Shi, who didn't quite understand what it meant.

Gao Xuan had tables and chairs prepared and lights lit. Tong Anian put the map drawn by Qu Shi and the topographic map she drew together, intending to explain the use of topographic maps to Qu Shi.

"Topographic drawings are about the undulations of the ground and the position and shape of features on the horizontal plane. Just like here, mountains will be drawn directly on your drawing, but although there are no mountains drawn on my topographic map, mountains can be drawn directly. You can see the shape of this mountain at a glance."

"So that's it, An Nian, can you teach me how to draw this topographic map?" Qu Shi looked at the topographic map drawn by Tong Anyian. Although he couldn't understand it at first, after Tong Anyian explained it to him, he actually felt Sometimes this topographic map is even more useful than a map, so naturally you have to learn it.

"Okay." Tong Anian taught Qu Shi how to draw a topographic map, while preparing to draw a topographic map based on the map they drew.

After drawing half of it, Tong Anyian asked Qu Shi to draw the rest. Although Qu Shi was still a little unsure, with Tong Anyian's help, he was able to draw the rest of the terrain.

"This seems a bit difficult." After finishing the song, Tong Anyian wiped the sweat from his forehead and smiled.

By the time they finished painting, it was completely dark, and Gao Xuan and the others also lit lanterns.

"Let's eat first. Let's talk about other things after eating." Jinyi walked over and rubbed Tong Anyian's head. Tong Anyian turned to smile at him and stood up and stretched comfortably.

The topographic map has been drawn, and the map is already in her mind. After returning, she plans to make a large sand table to test her ideas. If it works, she can start work directly.

Check out the 16-9 book bar and see the correct version!

(End of chapter)