IBM Visualization Data Explorer User's Reference

Slab

Category

Import and Export

Function

Creates a "slab" of data.

Syntax

output = Slab(input, dimension, position, thickness);

Inputs

Name	Type	Default	Description
input	field	none	object to be "slabbed"
dimension	integer or string	0	spatial orientation of the slab
position	integer or integer list	all	starting position(s)
thickness	integer	0 or 1	thickness of slab (in number of elements)

Outputs

Name	Type	Description
output	field or field series	slabbed data

Functional Details

This module creates a multidimensional object consisting of a selected subset of input data.

data	specifies the data field to be slabbed. This field must have regular connections.
dimension	specifies the dimension in which the slab should be oriented relative to the input object (the output slab will have the same orientation). The n dimensions of the object can be specified by number (from 0 to n - 1). The first three dimensions can also be specified as x, y, and z, respectively. The default for this parameter is dimension 0 (zero). Notes: The dimension number refers to the ordering of positions in the "connections" component. Thus, x corresponds to 0 only if the positions have been specified as x varies slowest. Slab can also be used on deformed grids, in which case the connections do not align with any particular axis. Transposing the positions (i.e., with Transpose) does not change the order in the "connections" component.
position	specifies the position from which the slab is generated. If the specified value is a single integer, the module creates a single field, with the slab oriented in the specified dimension and containing the number of volume elements specified by thickness (see below). If position is a list of integers, the module creates a series of specified slabs, and the default value of thickness is 1 (one). If this parameter is not specified, the output is a series of slabs (thickness = 1) that begin at every grid position along dimension.
thickness	specifies the thickness of the slab (in volume elements). A specified value of 0 (the default when position is a single number) will produce a 2-dimensional slice in a 3-dimensional object.

Notes:

1. This module performs no interpolation, and only data with regular connections can be slabbed.

2. If the input object is already colored, the colors are passed through unaltered.

3. If the input object is a volume and the requested slab is much thinner than the input object, the colors for volume rendering may be dim.

4. If the data are connection dependent, a request for a slab of thickness = 0 is ill-defined and the module returns an error.

Components

All input components are propagated to the output.

Example Visual Programs

Imide_potential.net
RubberTube.net
Streamline.net
SIMPLE/Slab.net

See Also

 MapToPlane,  Select,  Slice

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