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New Extensions to Process Visualization

 

The result of the state of the art analysis was, that a new software has to be developed to reach the design goals. In the following section we describe the new extensions to process visualization we implemented.

Bar and Multi-Bar

The bar is a simple rectangle which changes its height or width according to the value to display. The bar is the standard visualization instrument. Figure 1 shows three examples of the bar. The left-most shows an simple standard bar with the ''bullet'' and the actual value display. In the middle there is a bar with the ''history'' mentioned above. You can recognize older values by lighter and smaller rectangles. The right-most example shows a multibar, the multi-instrument version of the bar. You now recognize the importance of the brown ''bullet'' showing the actual value of the brown bar. This is an screen-shot of a fast moving multi-bar, so the actual value displays are not exactly at the same height as the bars.

  figure52
Figure 1: simple bar, history bar, multi bar.

Gauge and Muli-Gauge

The so called gauge is a round instrument which looks like a tachometer. It has a kind of needle which changes its orientation according to the value it has to display. Figure 2 shows two example gauges.
The left one is a simple gauge showing his value with the needle, the bullet and the numeric display. The red ranges are implemented as red and pink sectors.
The right one shows the multi-instrument version with history. The history is implement as little triangles following the needle like a tail. Those triangles fade to the background as in the barinstrument.

  figure59
Figure 2: simple gauge, multi history gauge.

Trace

The trace is a instrument which memorizes many time-value pairs and prints it down just like a oszillograph. So it looks like a pen drawing the value on paper by time. Figure 3 shows an example of this instrument. The scale, red ranges, numeric displays are implemented as in the barinstrument.

  figure66
Figure 3: trace displaying two values.

LEDs

In this instrument a value equal to zero is displayed as an off-LED and a value different from zero is displayed as an on-LED.

Icons

This Instrument shows predefined Pictures for values. So the user can choose an image for each possible value. This is often used for displaying status information.


next up previous
Next: Implementation and Evaluation Up: No Title Previous: Special Requirements of Real-Time


Thu Apr 8 23:18:15 MEST 1999