zone property-distribution
command
Syntax
- zone property-distribution <[property] fvalue > keyword ... <range>
Primary keywords:
deviation-gaussian deviation-uniform deviation-lognormal gradient add multiply vary
Modify a zone constitutive model property. The property should accept a value of type float. While technically any valid type can be used here, none of the distribution keywords will apply and the
zone property
command should probably be used instead.The phrase that modifies the value must be given immediately following the property value. For more information on modifying values and the operation of these keywords, see the Value Modifiers topic.
The special
density
keyword can be given as a property as well, assigning density to zones. This is not a constitutive model property but stored within the zone class.- deviation-gaussian f <keyword>
A Gaussian distribution is used to assign the property values randomly, with a mean of fvalue and standard deviation of f. The optional keywords fmax and fmin specify the upper and lower bounds, respectively. If a generated value falls outside these bounds, it is regenerated until it lies within the specified range.
- deviation-uniform f
A uniform distribution is used to assign the property values randomly, with a mean value of fvalue and a standard deviation of f.
- deviation-lognormal f
A log-normal distribution is used to assign the property values randomly. In other words, the natural logarithm of property values is a Gaussian distribution with a mean of fvalue and standard deviation of f.
- gradient v <origin v >
Apply a gradient to the property value. Note the
origin
keyword is optional, however, the default value (0,0,0) is used if theorigin
keyword is not included in the command — which may not produce the intended result.
- vary v
Apply a linear variation to the property value.
Usage Example
The following example illustrates how zone property-distribution
can be used.
zone property-distribution cohesion 600 deviation-gaussian 10
The above example sets a Gaussian distribution on cohesion with a mean of 600 and standard deviation of 10.
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