# IBM Visualization Data Explorer User's Guide

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## Changed Modules

This section contains only summaries. See IBM Visualization Data Explorer User's Reference for details. Alternatively, you can click on a module name to go directly to that module's description.

AutoAxes

There are new inputs to AutoAxes which allow you to explicitly specify tick locations, and optionally, to specify labels to be associated with those locations. Thus for example, if one of your axes represents the months, with integers 1 to 12, you could indicate to AutoAxes to place ticks at each integer from 1 to 12 and to label them "jan", "feb", .... Plot and ColorBar similarly now allow you to specify tick location and label.

AutoAxes no longer scales the input object. This should make using probes in an image which includes axes easier. There is a break with backward compatibility in that for some viewpoints the axes may not lie completely within the image; you will need to change the viewpoint to be slightly farther away from the object.

AutoGlyph, Glyph | "cube" and "square" glyphs have been added.
ColorBar | Has new inputs which allow you to specify precise tick locations and labels for the ticks (see AutoAxes).
Compute, Compute2 | Now perform string operations, such as strcmp, strlen, strstr, etc. Compute also provides a "random" function.
Display | Now has output called "where". This is the identifier for the window into which the image was displayed. See ReadImageWindow.
Export | Now exports VRML 2.0 data.
Get/Set | Are replaced by GetLocal/SetLocal and GetGlobal/SetGlobal. See "Changes to Get and Set modules".
Histogram | Now will create 2- and 3-dimensional histograms for vector data.
Image | Now has new output called "where". This is the identifier for the window into which the image was displayed. See ReadImageWindow. Also, if you choose the Rerender Image option to render the image at a higher (or lower) resolution, screen objects such as captions and color bars will now be WYSIWYG. See ScaleScreen.
Include | Has a new input called "pointwise". If this input is set, then Include will remove the connections of the input before removing points. Thus only those positions with data values outside the specified range will be removed. The default behavior (and previous behavior) is to also remove all connections (and positions referenced by those connections) containing at least one invalid point.
Inquire | Has several new inquiries: "is image", "is connection", "object tag", "connection type", "valid count", "invalid count"
Integer, IntegerList, Scalar, ScalarList, Vector, VectorList | Each of these data-driven interactors now has a "refresh" input. This input resets the interactor, as if it is running for the first time, regardless of the current output value with respect to the range of the current input to the interactor.
Pick | Has new inputs `locations` and `camera`. These inputs are intended for use when picking is done in an image window created using SuperviseWindow, rather than the Image tool.
Plot | Has new inputs which allow you to specify precise tick locations and labels for the ticks (see AutoAxes).

ReadImage

ReadImage supports miff images. If the .miff file contains a sequence of images, they will be read in as an image series. ReadImage has a new input, "colortype", which allows control over the pixel format used internally to represent the loaded image. It also has a new input, `delayed`, which specifies whether images stored in image-with-colormap format should be imported as a delayed colors image.

WriteImage | Supports MIFF output, which is a run-length-encoded format that supports image sequences. Supports GIF output of any image.

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