Data Visualizers

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Data visualizers may be associated with cells of report tables.

There are two group of visualizers:

for changing background colors depending on values

for displaying diagrams that visualize values (a diagram is drawn on top on the standard cell background, but below the cell content)

The same cell may have both a color changer and a diagram.

This feature is similar to conditional formatting that can be found in Microsoft Excel, however, there are important differences:

in Excel, you can visualize the same value as entered in the cell; in Report Workshop, this value is specified separately. So you can, for example, display a price, but show the icon identifying the price change; or show a movie title, but visualize its rating

Report Workshop does not use raster images to visualize values, so diagrams may be of any size and printed without losing quality

 

All visualizers are inherited from TRVReportCustomValueVisualizerBase. It defines the string that must be evaluated to get values for each cell, and specify how minimal and maximal values are calculated.

The first group of visualizers (color changers) are represented by a single class: TRVReportColorChangerItem.

The second group of visualizers (value visualizers displaying diagrams) include:

TRVReportAreaSizeVisualizer: displays a shape having the area proportional to the value

AreaViz_Circle

 

TRVReportColoredShapeVisualizer: displays a shape having colors and rotation depending on the value

SCVis_Arrows

TRVReportBarVisualizer: displays a horizontal or vertical bar having length proportional to the value

 

BarVis_Axis_Auto

TRVReportGaugeVisualizer: displays a gauge

GaugeVis_ArcRev

TRVReportPieVisualizer: displays a pie slice having an angle proportional to the value

PieVis_Gradient

TRVReportShapeRepeaterVisualizer: displays the count of shapes proportional to the value

RepVis_Stars

 

TRVReportSignalStrengthVisualizer: displays a diagram that is usually used to show a signal strength or a volume

SigVis_Ex1


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