Setting a Spatial Modifier
Maxwell magnetic transient solvers support use of a 3D Dataset as a Spatial Modifier to modify spatially varying properties of conductivity, permeability, and permittivity. In general, Thermal Modifier and Spatial Modifier cannot be applied to one material property simultaneously.
To specify 3D dataset as Spatial modifiers for a material:
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In the View/Edit materials dialog you must enable the Spatial Modifier check box in the View/Edit Modifier for panel. This causes the properties of the Material table to expand to include a Spatial Modifier column. By default, the Spatial Modifier property is set to None.
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Selecting Edit... from the drop-down menu causes the Edit Spatial Modifier dialog box to appear.
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Check Use spatial dependent dataset. If a predefined dataset is available, you can select it. Or you can select Add/Import Dataset. This opens the Add Dataset dialog box for specifying 3D object coordinates and associated values of the material property (conductivity, permeability, or permittivity) to be used in the design. (You can click the column heads to select the units.)
You can also import a tab delimited text file containing predefined coordinates and property values.
Imported datasets must be tab-delimited files (*.tab) containing sets of X, Y, and Z coordinates and associated property Values. For example:
2 4 4 682 5 5 703 5 5 71You can also edit existing datasets as needed.
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The spatial modifier expression models the material property change with respect to location along the object. The expression appears in the Spatial Modifier column for the associated property.
The expression is of the form:
clp(dataset_name,X,Y,Z)where
clpis the closest point interpolation function, anddataset_nameis the name of the design dataset containing the set of 3D object coordinates and associated property values to be used in the design. For example:clp(ds2,X,Y,Z)is the expression that uses theds2dataset.