The first two tools listed, along with ReadImage and WriteImage, are concerned with the flow of data into and out of a visual program. The others typically process data immediately after it has been imported.

• Export -- Exports Objects created in Data Explorer to an external data file (in Data Explorer file format).

• Import -- Brings data into Data Explorer from a specified file. If the file contains more than one variable or contains multiple frames of data, portions of the data can be specified for importation.

• Include -- Includes (or excludes) points based on their data values (e.g., removing all points with data values greater than 9.3). It can also be used to remove data marked as invalid.

• Partition -- Subdivides data to take advantage of parallelism for Data Explorer SMP. You can control the level of subdivision.

• ReadImage -- Reads an image from an external file in RAW or TIFF format.

• Reduce -- Reduces the resolution of a data set, filtering and resampling the set at a lower resolution.

• Refine -- Increases the number of samples in a data set. This module interpolates data values or colors at the new positions from the data or color values at the original positions. It can also convert connections from quads or faces to triangles, and from cubes to tetrahedra.

• Slab -- Takes a positional subset of a data set with regular connections (cubes, quads, and lines). You can specify along which axis to take the subset, where the slab should begin, and how thick the slab is to be. The module performs no interpolation.

• Slice -- Takes a positional subset of a data set with regular connections, like the Slab module. However, unlike the Slab module, it creates output with a dimensionality 1 less than the dimensionality of the input. For example, you can import a data set as a 4-dimensional grid, with the fourth dimension representing time. You can then use the Slice module to create 3-dimensional slices of the data set.

• Stack -- Stacks a series of n-dimensional Fields to form a single (n+1)-dimensional Field. This module can also be used to increase the dimensionality of a single Field.

• Transpose-- Transposes the positions of a Field. For example, it can interchange the x and y axes.

• WriteImage -- Writes an image to an external file in a specified format (ps, TIFF, YUV, RGB). The same functionality is provided by the SaveImage option of the File pull-down menu of the Image window.