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# 5.1 Non-map Projections

The linear projection comes in three flavors: linear, log, and power (or exponential). The projection for the y-axis can be set independently from the x-axis. We will show examples of all three by first creating dummy data sets using gmtmath, a ``Reverse Polish Notation'' (RPN) calculator that operates on or creates table data:

    #!/bin/sh
    #
    #    $Id: GMT_dummydata.sh,v 1.1 2001/03/21 04:10:21 pwessel Exp $
    #
    #    This script makes the dummy data sets needed in Section 5.1

    gmtmath -T0/100/1  T SQRT = sqrt.d
    gmtmath -T0/100/10 T SQRT = sqrt.d10

Subsections

- 5.1.1 Cartesian Linear Projection (-Jx -JX)
- 5.1.2 Logarithmic projection
- 5.1.3 Power projection
- 5.1.4 Geographical linear projection
- 5.1.5 Linear Projection with Polar () Coordinates (-Jp -JP)