What is the difference between the plane rectangular coordinate system in measurement and the plane rectangular coordinate system in mathematics?

The difference between the plane rectangular coordinate system in measurement and the plane rectangular coordinate system in mathematics;

1, the position of the coordinate axis is different. In surveying, the X axis is the vertical axis and the Y axis is the horizontal axis, while in mathematics, the X axis is the horizontal axis and the Y axis is the vertical axis.

2. The sorting directions of coordinate axes and quadrants are different. The first quadrant is located in the upper right corner, but the plane rectangular coordinate system in surveying is arranged clockwise in the first quadrant, while the plane rectangular coordinate system in mathematics is arranged counterclockwise.

3. The origin of coordinate system has different meanings. The origin of plane rectangular coordinate system has practical significance in surveying, but it has no practical significance in mathematics.

Expand one's knowledge

Surveying is a science that studies the shape and size of the earth and determines the position of the ground (including air, underground and seabed). It is a science and technology that studies the collection, processing, management, updating and utilization of information related to geographical spatial distribution on the whole earth and various natural and man-made objects on its surface and outer space. Is to determine the location of space points and their attribute relationships.

Its main tasks include three aspects: first, to study and determine the shape and size of the earth and provide necessary data and information for earth science; The second is to draw the characteristics and landforms of the earth's surface; The third is to design the design results on the drawings to the site.

classify

Surveying is a science that studies how to determine the plane position and elevation of ground points, draw the terrain information of the earth's surface, and determine the shape and size of the earth. The contents include: general surveying, geodesy, geodesy, gravity surveying, topographic surveying, photogrammetry, engineering surveying and oceanography.

Development function

In China, cadastral survey is the basis of land management. The results of cadastral survey are not only used for tax collection, but also for land ownership management, so as to ensure the order of land use, improve the efficiency of land use, and use very precious and limited land reasonably and economically.

Surveying also serves the management of national territory. The record that Jing Ke stabbed the king of Qin in Yan Ce of the Warring States Policy shows that the map politically symbolizes the territory and sovereignty of the country during the Warring States Period. At present, in some countries' territorial disputes, the representation of national boundaries on maps published by the other side is often used as evidence in favor of one's own side or as a means of delineating national boundaries through surveying technology.