What are the points to be kept in mind while using dot method?

The following points should be considered before constructing a dot map:

1. Determine the Value of Dot: It depends upon (a) Scale of the map (b) Range of data (c) The type of element to be shown.

2. Size of Dots: The size of the dot, should neither bo so large that the entire map looks overcrowded nor it should be so small that even the areas of high concentration look empty.

3. Spacing or Placing the Dots: As a rule dots are placed exactly according to the actual distribution of the concerned element. The number of dots is large in areas of high concentration while lesser dots may be put in areas of low concentration. No dots are placed over negative areas like water bodies, marshes, rugged and forested areas.

4. Uniformity of Dots: All the dots placed on the map should be of uniform size and they should be uniformly round in shape.

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M. Imp.