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Graph Software for Scientists and Engineers
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Soil Engineering and Geology
| DPlot allows you to produce a triangle plot (also known as a ternary plot), a graph of 3 variables. It is most often used in
geologic studies to show the relative compositions of soils and rocks. If your data is composed of sand and clay percentages from
a soil texture analysis (with the third implied axis being silt percentage), you have the option to display the graph using the
USDA soil classifications. This option divides the graph into the 12 regions of USDA-specified soil textures and labels each region: |
Triangle plot, often used in geologic studies. See the Triangle Plot page for more information. |
| DPlot also includes support for IUGS mafic
and ultramafic rock classifications as well as Ab-An-Or mineral classifications. In general it is a
relatively simple process to add
boundaries and labels for any other common ternary plot. But of course if you have a classification not supported by DPlot you are
welcome to let us know, and we'll likely be able to add that plot-type in short order. |
| To create a triangle plot, import or enter your data to initially create an XY plot with linear scales on the X and Y axes.
Then simply right-click on the plot and select "Triangle Plot". For more information on triangle plots see the
Triangle Plot page. |
| A grain size distribution plot is a special purpose graph generally used to depict the results of a sieve
analysis, commonly known as a "gradation test". The sieve analysis determines the gradation (the
distribution of aggregate particles, by size, within a given sample) in order to determine compliance with
design, production control requirements, and verification specifications.
Typically a grain size distribution plot shows grain sizes in millimeters on the X axis with a reversed
(largest-to-smallest) logarithmic scale: |
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| The graph above shows grain sizes in millimeters, AASHTO material classifications below the X axis, and AASHTO-standard
sieve sizes above the graph. You can control the grain size units, choose the Udden-Wentworth scale for material classifications, and/or
pick British standard sieve sizes for the top scale. For more information see the Grain Size Distribution page. |
For a more complete list of DPlot features see the Features page.
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RUNS ON
Windows 10,
Windows 8,
Windows 7, 2008,
Vista, XP, NT,
ME, 2003, 2000,
Windows 98, 95
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