When you have three mutually interdependent variables whose proportions must total 100%, a ternary (triangular) diagram is often used to present the data. gINT Graphs can output data using a ternary diagram (gINT version 6 and later).

To report the relative proportions of coarse particles (sand), silt and clay that determine soil texture, a ternary diagram is used:

Regions of the diagram that correspond to the various soil texture classifications are outlined and labeled in the diagram. The table at the bottom of this graph report presents the data and the soil texture classification for each sample based on that data.

Data points can also be plotted directly on the ternary diagram.

Two different pre-drawn ternary diagrams in Graph reports are available for English units in Letter-size output from the gINT Web site. You can also draw your own custom ternary diagrams, in the included gIDraw (CAD) drawing application.