Constant

Inputs

value

A space-separated string representing a scalar, vector, or tensor.

Outputs

table

A destination table to store the constant value.

Comments

• A constant value table will return the same record for every item lookup, specified by value.
• The value string must have same format as table (vector and tensor tables require multiple values). A tensor table can accept values of three or six components (representing a 2D or 3D tensor).
• Multiple values are passed in a space-separated string.
  • The following examples show the value attribute applied to each result table type:
    • Scalar: value="1.0"
    • Vector: value=”1.0 2.0 3.0”
    • Tensor value=”1.0 2.0 3.0” (creates a 2D tensor constant value)
    • Tensor: value=”1.0 2.0 3.0 4.0 5.0 6.0” (creates a 3D tensor constant value)
• Vector and tensor constant values are defined relative to the global coordinate system.
• When applying this operator to a complex value table, the following rules apply:
  • If the imaginary parts are omitted, they will be assigned to 0.0.
  • Complex vector and tensor constants follow a block format where the real parts are followed by the imaginary parts:
    • Scalar: value=”Sr Si”
    • Vector: value=”Xr Yr Zr Xi Yi Zi”
    • Tensor: value=”XXr YYr XYr XXi YYi XYi” (creates a 2D tensor constant value)
    • Tensor: value=”XXr YYr ZZr XYr YZr ZXr Xxi YYi ZZi XYi YZi ZXi” (creates a 3D tensor constant value)

Syntax

XML Example

<call name="Constant" value="1.0 2.0 3.0" table="dest_tab" />