Visual Mining product’s core rendering engines share the same Chart Definition Language (CDL) language. While CDL is a text based language, NetCharts Designer offers a user interface with wizards and menus to design and style the charts, removing the need to learn CDL.
Sparklines and Sparkbars are very small charts without the usual axes, tic lines or grids. This chart type is intended to show a trend in a clear and simple way in the text they’re part of.
Not A Good Idea: This example shows a chart with different fonts and font sizes together with a harsh gridline that makes it distracting and disrupting. The design pulls the eye away from the information the chart is attempting to show.
You may have read about CDL on our site and in the documentation and wondered what it is and stands for. Our Chart Definition Language or CDL is a collection of plain text parameters that describe a chart.
Not A Good Idea: Keeping the chart layout as vertical where the bars stand upright can be a problem if you have very long labels. As the example demonstrates below, the long labels overlap each other, get cut off and makes the chart hard to read.
Not A Good Idea: Adding excessive 3D depth on a chart will make it difficult to accurately read the true value. For example on this Combo chart, the bar value of Label 1 is 10 but at a quick glance the value appears to be 15 due to the depth angle of the bars.
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You may have a requirement where you need to show the individual values of each segment in a stacked bar instead of the totals.
The CDL parameter StackLabel offers control over the display of the segment bar values and the value in the active label hover popups for stacked bar charts. Options allow for either the aggregate value of the stack or the individual stack segment value to be presented in the label.
Did you know that it’s possible to show a large dynamic text value in your KPI in place of a standard chart? Perhaps you may want to use a particular kind of KPI showing a large number display where a typical chart visualization is less important.