COMSOL 6.3 - Grid1D, Grid2D, Grid3D

Grid1D, Grid2D, Grid3D

Create a dataset that can evaluate 1D, 2D, or 3D functions or other datasets on a domain with a grid. For example, you can use these datasets to evaluate BEM and far-field operators.

Syntax

model.result().dataset().create(<dtag>,"Grid1D");

model.result().dataset().create(<dtag>,"Grid2D");

model.result().dataset().create(<dtag>,"Grid3D");

model.result().dataset(<dtag>).set(property,<value>);

Description

model.result().dataset().create(<dtag>,"Grid1D") creates a 1D grid dataset feature named <dtag>.

This dataset provides support for evaluation of functions or other datasets on a domain with a grid. All functions in the same function list as the selected function can also be evaluated. The domain is an interval for Grid1D, a rectangle for Grid2D, and a block for Grid3D. The domain does not need to have the same dimension as the number of arguments to the function.

The following properties are available:

Table 7-55: Valid Properties for Grid Datasets.
Name	Value	Default	Description
adaptive	true \| false	true	For Grid1D only. If active, it can downsample 1D datasets by removing unnecessary evaluation points to improve graph plots.
auxvar1	String	Depends on dimension	Auxiliary variable for the first dimension, if defineauxvars is set to true.
auxvar2	String	Depends on dimension	Auxiliary variable for the second dimension, if defineauxvars is set to true. (For Grid2D and Grid3D.)
auxvar3	String	Depends on dimension	Auxiliary variable for the third dimension, if defineauxvars is set to true. (For Grid3D.)
auxunit1	String		Unit for auxiliary variable for the first dimension, if defineauxvars is set to true.
auxunit2	String		Unit for auxiliary variable for the second dimension, if defineauxvars is set to true. (For Grid2D and Grid3D.)
auxunit3	String		Unit for auxiliary variable for the third dimension, if defineauxvars is set to true. (For Grid3D.)
data	none \| dataset tag	none	The dataset this feature refers to.
defineauxvars	true \| false	false	Define auxiliary variables.
distribution	uniform \| exponential \| mixed	uniform	The point distribution: uniform, exponential, or mixed uniform/exponential.
function	none \| all \| function tag	none	The function this feature refers to.
pari	String	Model dependent	The name of the parameter. par1, par2, and par3 for Grid3D, for example.
parmin1	double	0	Lower bound for the first dimension of the domain.
parmax1	double	1	Upper bound for the first dimension of the domain.
parmin2	double	0	Lower bound for the second dimension of the domain. (For Grid2D and Grid3D.)
parmax2	double	1	Upper bound for the second dimension of the domain. (For Grid2D and Grid3D.)
parmin3	double	0	Lower bound for the third dimension of the domain. (For Grid3D.)
parmax3	double	1	Upper bound for the third dimension of the domain. (For Grid3D.)
resi	integer >= 2	1000 for 1D, 100 for 2D, and 30 for 3D	The number of points into which each dimension is discretized. res1, res2, and res3 for Grid 3D, for example.
source	function \| data	function	Use a function or a dataset as the source.