Linear Transform

The Linear Transform dialog enables you to specify the minimum and maximum values, and the colour contour interval.

The first colour is all values <= minimum, the last colour is all values > maximum. Individual ranges are evenly distributed between the min and max.

If a contour is defined, then interior breaks are moved down to the nearest multiple of the contour (min and max remain unchanged).

Example:

For a five-colour linear transform from 0 to 10, these are the ranges:

contour = dummy (not defined)

1. x <= 0.0 (min)

2. 0 < x <= 3.33

3. 3.33 < x <= 6.66

4. 6.66 < x <= 10.0

5. x > 10.0 (max)

contour = 3

1. x <= 0.0 (min)

2. 0 < x <= 3

3. 3 < x <= 6

4. 6 < x <= 10.0

5. x > 10.0 (max)