The contour map of China is a map that many people want. Here is a way to introduce you to it. Not only is it easy to get, but you can also choose a topographic map of any region to generate contours, which is very convenient.
The above picture is a global topographic map rendered based on ETOPO's elevation data. This topographic map is actually rendered by importing DEM elevation data into Global Mapper.
The contour topographic map can be directly generated on the basis of DEM elevation data.
The above picture is a topographic map of contour lines generated from DEM elevation data.
In order to facilitate viewing, the editor cut the entire topographic map and made a topographic map of China (excluding coastal islands, Diaoyu Islands, South China Sea Islands, etc., forgive me)
According to this Chinese DEM elevation data, it is clearer to generate at this time.
In this way, by zooming in on the screen, you can view the contours in detail, as shown in the figure below:
This is a simple way to obtain a topographic map of China's contour lines.
The DEM data of ETOPO used by the editor has an accuracy of 1.8 kilometers. If you want a higher-precision contour map, you can download the higher-precision elevation data.
Elevation data download
Now, you should have DEM data. Here's how to use DEM elevation data to generate contour maps.
Drag the DEM data directly into the Global Mapper to load, and then open the "Analysis"-"Generate Contours" in the menu, as shown in the following figure:
Is it very easy to quickly generate contour topographic maps?