GraphDraw manual

Axis Range


Axis range manual setting

When GraphDraw first plots a graph it automatically calculates a suitable axis range and intervals to use.

There may be the very occasional situation where manual adjustment is required. This is possible, but should be used with care.

Selecting the Axis range... option will open the dialogue shown below.

By default the options Automatic Xaxis range and Automatic Yaxis range will be selected and the writable icons shaded. If either of these options is unticked, then the corresponding writable icons will become active, and alternative minimum and maximum values for the axis values can be entered. It is also necessary to enter the number of intervals to be used on the axis to cover the range.

Remember - the values you enter will completely override the auto settings, no further processing of them will be done by the program. Therefore take care in choosing the values. There is some 'sanity checking', e.g. the max and min values must be different, and the min value must be less than the max value, but apart from that the program will use the entered values when plotting the graph.

Selecting Set range will result in the graph being replotted with the axis range being based on the new values.

To return to automatic axis range selection, simply open the dialogue and tick one or both of the automatic axis range buttons as required. Selecting Set range will then result in the graph being replotted using automatic axis range(s).


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GraphDraw is © Chris Johnson, 2014
Email:chris@chris-johnson.org.uk

This document last modified on 2nd March 2018