Ch8 Q1

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Chapter 9 — Question 1

Compare an image and a map co-ordinate system (give a figure with comment)

Answer

Refer to figure 8.3 in the textbook.

The image coordinate system consists of:

1. Two perpendicular axes representing the row and the column direction.

2. The units are row number and column-number respectively.

3. The origin is row-number 1 and column-number 1.

The map co-ordinate system consists of:

1. Two perpendicular axes representing the X and the Y coordinate.

2. The units are (most often) metres.

3. The origin is X = 0 and Y = 0

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