Vvidget Builder User Manual

Graphs > Multiple Coordinate Graph

A Multiple Coordinate Graph is the same as a Single Coordinate Graph except that for each point there can be more than one coordinate system. The issue then becomes one of assigning data points to one coordinate v.s. another. For that purpose, the Multiple Coordinate Graph defines a focused coordinate index. That index must be set before creating data graphics on the graph.

The figure below shows a typical use of a multiple coordinate graph. The concept is to show how pressure changes in relation to temperature over time. The pressure would be shown by a blue curve, bar, etc. and the temperature by a red curve, bar or other graphical element(s), thus color distinguishes which coordinate the data goes with. Another way to view this data would be with a Single Coordinate Graph showing pressure v.s. temperature with a trajectory graphic where the parametric variable is time. There are reasons to show both formats.

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For an annotation of the components of the graph above see Single Coordinate Graph.

Note that the scope of this implementation is limited by Vvidget Builder's User Interface. At some time we will relax the conditions on the UI to permit many more options.