Comparison of Coordinate Analysis Method and Field Span Method Measuring Area
The field distance method is to calculate the area of ​​the figure by measuring the side length of the relevant figure in the field with a rangefinder or tape measure. On-site distance measurement is the most common area measurement method for real estate surveys. In the calculation of housing area, field-based distance measurement is now used. For regular graphics, such as rectangles, square houses, or rooms, we use a tape measure or distance meter to directly measure the length of its side, and simply calculate its area; for irregular graphics, it can be broken down into several simple Geometry, respectively calculate the area of ​​these graphics, calculate its area by addition and subtraction.
Comparing the accuracy of the coordinate analysis method and the field distance method to measure the area: The field distance method is to calculate the area of ​​the graph by measuring the side length of the relevant graph with a range finder or a tape measure. On-site distance measurement is the most common area measurement method for real estate surveys. In the calculation of housing area, field-based distance measurement is now used. This is a general rule for housing, because in general, commodity housing is more regular, and of course does not rule out irregular areas, at this time we use the area measuring instrument. Hand-held area measuring instrument, around the measured area once, it can be directly derived land area, also known as acres.
The relationship between the coordinate analysis method and the field measurement method for the area in the field: For a long time, the use of the coordinates of the boundary point to measure the area of ​​the plot or parcel is the main method for measuring land area by cadastral survey or land survey. The precision of the area calculated by the coordinate analysis method is It depends on the precision of the boundary point, and the accuracy level and standard of the boundary point are determined by the State Council’s administrative department of land or cadastral surveying, based on the collection of relevant domestic and foreign data, and based on the current and future development of land and cadastral management. Needs, determined by comparison, argumentation, and analysis. Estimating the house or room area by using the on-site distance method is the main method of the real estate surveying and mapping department. When determining the area accuracy measured by the on-site distance method, the accuracy of the distance measurement must be taken into account. The accuracy of the housing area is determined by the real estate administrative department of the State Council. of. In the decision-making process, the requirements of real estate management and the real estate market are mainly taken into account, as well as relevant regulations that have been in place in the past. The accuracy of the real estate sector's housing or real estate area actually refers to the accuracy of measuring the area using the on-site measurement method.
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