How to survey topographic map

Question 1: How did the topographic map come out? Hello, there are many sources of topographic map results:

1 field surveying and mapping, field workers use total station, gps and other surveying and mapping instruments to survey data, and use indoor surveying and mapping software (cass, mapgis) to conduct surveying and mapping;

(2) aerial survey and mapping, aerial survey equipment, aerial photogrammetry and office-specific data processing software;

3. Compile and draw maps, reasonably compile and draw large-scale topographic maps, and make topographic maps of the same scale and small scale, etc.

hope this helps

Question 2: How to map? It was measured with a rope. Mapping is a complex task. First of all, we should do a good job in the control network of the survey area. Then, according to the coordinates of the control points, the angular distance of the actual feature points (measured by sight distance method) is measured by theodolite and marked on the drawings. The largest topographic map is 1:500.

Question 3: What is the scale of topographic mapping?

According to Party A's needs, small-scale survey and design are generally adopted.

1 is used more than 1000, and there are some 1: 10000 in aerial photography.

Question 4: How to run the pole in topographic mapping? It seems that it cannot be explained clearly in a few words. In mountainous areas, the terrain is mainly valleys, ridges and waistlines. To be experienced, you'd better run with the master for a period of time, so as to sharpen the knife and not miss the woodcutter.

Question 5: How was the topographic map mapped? Topographic map consists of features and landforms, including water system, transportation facilities, residential areas, independent features, etc., which are represented by symbols in accordance with the provisions of map drawing. Geomorphology is generally represented by contour lines and isobath lines, which are generated by elevation points.