Variable

A variable is an n-dimensional vector quantity that varies over time. It is used to define the variation of a load or a joint condition, or to express the coefficients in a relation between degrees of freedom. For convenience, the solver allows the creation of constant variables, where only the value of the constant has to be provided. More complex variables can be built using a function variable. A function variable is a function of input, where input is given by a measure and function is described by a table. In some cases, you are able to replace the table or the measure of an internal variable as used in a joint condition.

ID table: CS_Variable

Members

None

Member functions

SetConstantValues(value)

value is an array, whose size is equal to the size of the table. To create a constant scalar variable, the value can be defined as shown in the following example:

value = System.Array[float]([1.0])

System, Array, and float are part of the Python language. The result of this is an array of size one, containing the value 1.0.

AddInputMeasure(measure)

measure is a measure object. The same variable can have more than one measure. The input variable of the variable is formed by the values of the input measure in the order that they have been added to the list of input measures.

SetTable(table)

table is a CS_PointsTable.

SetFunc(string, is_degree)

string is similar to the expression used in the user interface to define a joint condition by a function. Note that the literal variable is always called "time", even if you are using another measure as input. "is_degree" is a boolean argument. If the expression uses a trigonometric function, it specifies that the input variable should be expressed in degrees.

Note Variables cannot be shared by different actuators.

Derived classes

ConstantVariable