Color and Map Design: Text Placement, Scale & Generalization (Especially for GATE-Geospatial 2022)

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Color and Map Design

Color and Map Design Color is a complex visual variable and in a GIS is specified by RGB or HSI values. Red, Green, Blue are additive primaries. Magenta, Cyan and Yellow are subtractive primaries. Saturation and Intensity map better onto values than hue.

Dimensions of Color

Suitable for assigning grayscale colors, setting the saturation of a colour, etc.

This Image Shows Dimensions of Color

H – Hue

S – Saturation

V – Value

Text Placement

This Image Shows Text Placement

Scale and Generalization

Large scale maps should always include a scale. Maps that inform the user about differences in distance or area should also include a scale.

Small scale maps may not need a scale, as scale varies greatly with world or continental projections.

Verbal and visual scales make more sense to the average reader. Include a visual scale if the map will be reprinted or resized.

This Diagram Shows Scale and Generalization

For example: 1/24,000 or 1: 24,000 scale One (1) unit on the map represents 24,000 units on the ground ( inches which equates to ) .

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