DB2 graphic  QMF Version 8

Glossary

A

alignment panel
An invisible reference object you can use to position child objects relative to a specified point. Objects on an alignment panel are not scaled by layouts or axes.

B

breakpoint
A value at which a color in a colormap changes from the previous color to the next color.

C

chile depth
The number of child levels in a hierarchical layout. A child depth value of 1 defines a hierarchy with one parent object and its children. A child depth value of 2 defines a hierarchy with a top parent object, and its children, and its children's children.
child scaling factor
Factor used to determine the size of each child element relative to its parent in a hierarchical layout. For example, in an organizational chart, if the supervisor box is one square inch and the child scaling factor is .5, the employee box is displayed as half the size of the supervisor box, or one square half-inch.
color sequence
A type of resource that contains a set of predefined colors that can be accessed by an integer index. Color sequences are user-defined functions that can be used when defining the attributes of an object.
connection point
A type of resource that can be used to vary the color of an object depending on a value associated with the object. Colormaps are user-defined functions that can be used when defining the attributes of an object.
connection point
An invisible point whose coordinates are used as a reference for a link that extends from one data point to another data point.
connector
A graphical object that provides links between data points in a layout.

D

data locator
A data template child object that defines the location and scaling of data points in a layout.
data symbol
A graphical element used to represent a data point in a layout. QMF Visionary provides default data symbols for each layout, but users can substitute the data symbols they want and modify their properties. Examples of data symbols are markers, candlesticks, event bands, and price interval bars.
data template
The portion of a layout that is based on the query and displayed according to the layout style. The properties and child objects of a data template determine the format of each data point in a layout.
destination scene
A scene to which a wormhole connects. See also source scene, wormhole.
destination scene offset
A set of x- and y-coordinates that specify the center point of the destination scene that appears when it is displayed through a wormhole in the source scene.

E

event action
An action that executes a function in response to an event. Events occur through user actions such as a mouse click.

G

global parameter
A value assigned to a variable that is available to all scenes in a world and to the end user.

L

layer
One of a set of data templates in a single layout. For example, an XY chart that displays auto sales over a calendar year and advertising spending over a calendar year contains two layers.
layout
A display format that determines how data appears in a scene. A layout that displays data from an SQL query contains data points representing each row returned by the query. Examples of layouts include pie chart, stock chart, and linear map.
level of detail
A view of data that is associated with a zoom level. There are two types of levels of detail: scene level and data template level. Increasing the level of detail provides more screen space to present detailed information for each data point.

M

maximum child depth
The maximum number of child levels that can be displayed for a hierarchical layout. As you zoom into a hierarchical layout, the maximum child depth property controls the viewable number of levels at each zoom level.

P

primitive object
A graphical object such as a line, rectangle, or polygon that is used in the graphic design of a scene or data template.

Q

query parameter
A value assigned to a variable that is set at runtime before an SQL query is executed.

S

scene
The graphical representation of information retrieved from a database. A scene can also include other graphic elements, such as static text and images, and navigational tools, such as wormholes and jumps to other scenes.
scene parameter
A value assigned to a variable that is passed from one scene to another. In QMF Visionary, wormholes and event actions pass scene parameters.
source scene
A scene with a wormhole object in it that links it to a destination scene. See also destination scene, wormhole.
storyboard
A functional specification for a QMF Visionary application. It includes diagrams of the scenes, how they are linked, and the queries to be used.

V

viewer class
A type of resource that enables a user to restrict the appearance or behavior of a world based on a viewer's identity. Viewer classes are hierarchical.
viewpoint
A three-dimensional location for viewing a scene. A viewpoint has three properties: x-coordinate location, y-coordinate location, and zoom level. The x- and y-coordinate locations are set from the center of the scene.
visibility
A property that determines whether a data template or other object can be viewed in the scene. Visibility is a Boolean data type; it can be specified with a property expression that returns a value of true or false. In a hierarchical layout, visibility of child data fields is determined by the combination of child scaling factor and zoom factor. See also child scaling factor.

W

workbook
A filtered view of database objects, including tables, views, synonyms, procedures, functions, and data types.
world
A display of multiple graphical representations of related data driven by dynamic SQL queries. A QMF Visionary world consists of scenes, rather than forms or reports. See also scene.
wormhole
A special QMF Visionary object that links two scenes and can carry context information (parameters) from the source scene through to the destination scene.


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timestamp Last updated: March, 2004