How to calculate the force scale
Publish: 2021-05-15 18:50:21
1. The size of map scale can be determined by comparing the scale ratio. The scale is expressed in the form of 1:xxxxxx. If the denominator of the scale is larger, the scale is smaller. If the denominator is smaller, the scale is larger
for example, the scale of 1:100 is larger than that of 1:1000.
for example, the scale of 1:100 is larger than that of 1:1000.
2. The scale on a map indicates how much the distance on the map is smaller than the actual distance, so it is also called scale. The formula is: scale = distance on the map / actual distance. Scale is usually expressed in three ways 1) Digital, the scale is expressed by the proportion or fraction of the number. For example, one centimeter on the map represents the actual distance of 500 kilometers, which can be written as 1:50
000
000 or one in 50 million 2) Line type: draw a line on the map and indicate the actual distance represented by 1 cm on the map 3) In the form of words, write directly in words on the map. One centimeter on the map represents the actual distance of several kilometers. For example, one centimeter on the map is equivalent to the ground distance of 10 kilometers. The three representations are interchangeable. According to the scale on the map, the distance between the two places can be measured; According to the actual distance and scale of the two places, the distance on the map can be calculated; According to the distance on the map and the actual distance between the two places, the scale can be calculated. According to the use of the map, the size of the area indicated, the size of the map sheet and the details of the content indicated, the scale selected for mapping varies from large to small. The numerator in a map scale is usually 1. The larger the denominator, the smaller the scale. Generally, a map with a scale larger than one in 200000 is called a large-scale map; A map with a scale between 1 / 200000 and 1 / 1000000 is called a medium scale map; A map with a scale of less than one millionth is called a small-scale map. On the same map sheet, the larger the scale, the smaller the scope of the map, the more detailed the content of the map, and the higher the accuracy; The smaller the scale, the larger the scope of the map, the simpler the content and the lower the accuracy. Most of the maps in geography textbooks and Atlas used by middle school students belong to small-scale maps. Map scale
scale
on
map
the ratio of the line length on the map to the corresponding line length on the field. It represents the rection degree of map graphics, also known as scale. For example, 1:100000, that is, the length of 1cm on the map is equivalent to 1000m on the spot. Strictly speaking, the scale of the whole map is consistent only on the large-scale map representing a small area, because the curvature of the earth is not considered. Usually, the scale marked on the map is called the main scale. On a map, only certain lines or points conform to the main scale. The scale is related to the detail and precision of map content. Generally speaking, large-scale map, with detailed content and high geometric accuracy, can be used for map surveying. Small scale map, with strong generality, is not suitable for surveying on the map. Scale:
the rection of the distance on the graph compared with the actual distance; Distance on graph / actual distance & quot; The larger the scale is, the longer the distance on the graph represents the actual distance. The more detailed things can be reflected. Calculation of scale scaling:
enlarge the original scale to N times; The original scale xn enlarges the original scale n times; The original scale x (n + 1) reces the original scale to 1 / n; The original scale X1 / N reces the original scale by 1 / n; After scaling the original scale x (1-1 / N), the ratio of the original area becomes the square of the scaling factor
000
000 or one in 50 million 2) Line type: draw a line on the map and indicate the actual distance represented by 1 cm on the map 3) In the form of words, write directly in words on the map. One centimeter on the map represents the actual distance of several kilometers. For example, one centimeter on the map is equivalent to the ground distance of 10 kilometers. The three representations are interchangeable. According to the scale on the map, the distance between the two places can be measured; According to the actual distance and scale of the two places, the distance on the map can be calculated; According to the distance on the map and the actual distance between the two places, the scale can be calculated. According to the use of the map, the size of the area indicated, the size of the map sheet and the details of the content indicated, the scale selected for mapping varies from large to small. The numerator in a map scale is usually 1. The larger the denominator, the smaller the scale. Generally, a map with a scale larger than one in 200000 is called a large-scale map; A map with a scale between 1 / 200000 and 1 / 1000000 is called a medium scale map; A map with a scale of less than one millionth is called a small-scale map. On the same map sheet, the larger the scale, the smaller the scope of the map, the more detailed the content of the map, and the higher the accuracy; The smaller the scale, the larger the scope of the map, the simpler the content and the lower the accuracy. Most of the maps in geography textbooks and Atlas used by middle school students belong to small-scale maps. Map scale
scale
on
map
the ratio of the line length on the map to the corresponding line length on the field. It represents the rection degree of map graphics, also known as scale. For example, 1:100000, that is, the length of 1cm on the map is equivalent to 1000m on the spot. Strictly speaking, the scale of the whole map is consistent only on the large-scale map representing a small area, because the curvature of the earth is not considered. Usually, the scale marked on the map is called the main scale. On a map, only certain lines or points conform to the main scale. The scale is related to the detail and precision of map content. Generally speaking, large-scale map, with detailed content and high geometric accuracy, can be used for map surveying. Small scale map, with strong generality, is not suitable for surveying on the map. Scale:
the rection of the distance on the graph compared with the actual distance; Distance on graph / actual distance & quot; The larger the scale is, the longer the distance on the graph represents the actual distance. The more detailed things can be reflected. Calculation of scale scaling:
enlarge the original scale to N times; The original scale xn enlarges the original scale n times; The original scale x (n + 1) reces the original scale to 1 / n; The original scale X1 / N reces the original scale by 1 / n; After scaling the original scale x (1-1 / N), the ratio of the original area becomes the square of the scaling factor
3. It's in the second volume of the sixth grade mathematics book published by people's ecation press. The specific solution is as follows: distance on the map: actual distance = scale
4. In CAD, the size is 1:1,
on the drawing, it is 1:150. In fact, after printing by 1:1, it is proportional to the actual size.
for example, your actual size is 150, but after printing, the measuring distance is 1.
when you draw a drawing, just draw according to the marked size, and the scale is set when drawing.
on the drawing, it is 1:150. In fact, after printing by 1:1, it is proportional to the actual size.
for example, your actual size is 150, but after printing, the measuring distance is 1.
when you draw a drawing, just draw according to the marked size, and the scale is set when drawing.
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