# IBM Visualization Data Explorer User's Reference

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### Glyph

Category

Annotation

Function

Creates a glyph (visual representation) for each data value in a data field.

Syntax

    glyphs = Glyph(data, type, shape, scale, ratio, min, max);

Inputs

Name | Type | Default | Description
--- | --- | --- | ---
`data` | field | none | the set of points to which glyphs will be assigned
`type` | scalar, string, field, or group | input dependent | glyph type
`shape` | scalar | 1.0 | factor to describe the shape of the glyph (must be greater than 0)
`scale` | scalar | input dependent | scale factor for size of glyphs (must be greater than 0)
`ratio` | scalar | 0.05 or 0 | ratio in size (scalars or vectors) between smallest and largest glyphs
`min` | scalar or field | min of data or 0 | data value that gets the minimum-size glyph
`max` | scalar or field | max of data | data value that gets the maximum-size glyph

Outputs

Name | Type | Description
--- | --- | ---
`glyphs` | color field | set of glyphs

Functional Details

This module creates a glyph, or representation, for each data value in a data field (`data`). For data that are dependent on positions, a glyph is placed at the corresponding position. For data that are dependent on connections, a glyph is placed at the center of the corresponding connection element.

The Glyph module differs from AutoGlyph in its interpretation of the `scale` parameter. With Glyph, you can specify a multiplication factor that is applied to each data value to obtain the size of the glyph in world units. With AutoGlyph, the scaling is relative to the default glyph size.

To create sphere glyphs with a radius equal to the data value, set `scale` to 1 and both `ratio` and `min` to 0. To create arrow glyphs with length equal to the magnitude of the data value, set `scale` to 1.

For descriptions of the parameters, see AutoGlyph.

Components

Creates new "positions" and "connections" components. In the case of a 3-D glyph, a "normals" component is added for shading purposes. All components that match the dependency of the "data" component are propagated to the output, all others are not. If the input has "binormals" and "tangent" components, they are not propagated to the output.

Example Visual Programs

    GeneralImport1.net
    Imide_potential.net
    PlotTwoLines.net
    ProbeText.net

See Also

AutoGlyph, Sample

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