Types of map scale pdf

However, representative fraction avoids the use of units. Map detail is determined by the source scale of the data. In a bar scale, which tends to be the most common, the mapmaker has given you a visual guide to use to make distance calculations. Leave a comment gis by srinivasjbt january 7, 2019 january 7, 2019. All map scales are an expression of the numerical relationship between the map and the land that is represented. Mapping provides important information about the landmark features.

Map scales word scale 1 cm 8 km a stated scale says exactly how much distance is represented by 1 cm, in this case, 8 km. This type of scale representation visually looks very similar to representative fraction rf. Types of map scales there are two main types of map scales. The scale of a map is the ratio of a distance on the map to the corresponding distance on the. This type uses a set of numbers that represents the object or a landmark. How much distance a unit or no of units measured on the map represents in reality is given by this scale. These representative fraction scales mean that one unit of measurement on the map 1 inch or 1 centimeter represents 10,000 of the same units on the ground. The divisions on the line scale measures map distances and the labeling will give. Usgs topographic maps have both bar scales and rfs. A map is a representation of all or part of the earth drawn on a flat surface at a specific scale. Maps at these scales most often use the 15minute or 30by60 minute quadrangle formats.

The representation on a flat surface of all or part of the earths surface or some other celestial body such as moon. The verbal scale is just a sentence stating that 1 map unit x land units. Verbal scale makes use of words language for representing scale related information on the map. As an example on the left photo, the orangeshaded scale represents a 23 fractional scale.

Types of scale in geography know all about it grind gis. It shows the relationship between the map distance and the corresponding ground distance in units. In a bar scale, which tends to be the most common, the mapmaker has given you a visual guide to use. A fractional scale map shows the fraction of an object or land feature on the map. This type of scale is sometimes confused with representative fraction rf scales. If you are given one type of scale, you should be able to derive or. Graphic scales show the scale as a line or a bar with the. Depending on the way scale is represented, scale is classified into 3 types i. They would be omitted, usually, from maps in the 1. This is a special ruler that is drawn below a map that can be used to measure an area or distance. In a bar scale, which tends to be the most common, the mapmaker has given you a visual guide to use to make distance.