In the context of this collection of beans, a
<-i>gauge is a visual device which presents
a single value to the user, from within a range, and where the value can be
continually varying within the range. Thus gauges can include everything from
traditional-style circular gauges to LED displays, counters, sliders, and a
whole range of innovative and unusual devices.
This collection contains some representative gauges that you can connect
to data providers via the
The following gauges are supplied with
WebRunner Bean Works. They can be used with the Bean Factory
Tester or any Java builder.
setValue
method. The gauges will
smoothly animate to reflect the provided value. All gauges have modifiable
properties for their value range and their current value. Some gauges
have additional modifiable properties for visual aspects of the gauge.
Gauges |
Descriptions |
LED Counter | The LED Counter presents an LED showing avariable number of digits. The digits will change to reflect the current gauge value, with immediate update, or update via all intermediate values. |
Rolling Counter | The Rolling Counter is very similar to the LED counter, but simulates a car odometer, with digits that can slide vertically into place. |
Needle | The Needle gauge is a traditional semi-circular gauge, with a heavy swinging needle and a shaded color scale. The degree of needle damping may be controlled, along with various display colors and styles. |
RAG Needle | The RAG Needle gauge is similar to the Needle gauge, but this time divides the scale into three areas which are colored Red, Amber, and Green. This gauge is ideal for MIS presentations. The changeover points between the colors can be set, including whether Red is to appear at the high or low end of the range. |
Thermometer | The Thermometer represents a value by the height of a column of liquid in a tube. Positive and negative scales can be drawn up the side of the tube. When the value changes, the liquid level in the tube changes quickly but smoothly. Various color and style properties may be set. |
Oscilloscope | The Oscilloscope records a trace of the value, repeatedly traversing the display area and erasing the previous trace. The trace is always a continuous line connecting past values, and the position of the line end represents the current gauge value. Trace line color and various other visual properties may be set. |
Trace Recorder | The TraceRecorder records a trace of the gauge value, scrolling continually across the display area. This creates a display like the output graphs available with many system performance monitoring tools. Trace line color and various other visual properties may be set. |
Lightbulb | The Lightbuld gauge will show an image of a light bulb with various intensities to reflect the current gauge value. The rapidity of change between intensities in respose to value changes may be controlled. |
Block Indicator | The BlockIndicator represents the gauge value by the number of blocks arranged in a line. By controlling the dimensions and spacing of the blocks and their colors, effects such as progress indicators and "hi-fi" gauges can be achieved. |
Bar Indicator | The Bar Indicator represents the gauge value by the length of a bar. This sort of gauge is commonly used for progress indicators. The bar can be filled with one of a set of pre-defined color gradients. |
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Taligent, Inc. 1996 - 1997.
Copyright © IBM Corporation 1996 - 1997.
All Rights Reserved.