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Stored procedures
Smoothes a Line chart or a Scatter chart by using the "cubic splines" algorithm.
Reminder: A chart is not smoothed by default.
Linux Caution: A specific configuration is required to use this function in Linux. For more details, see The charts.
Example
// Smooth CHART_MyChart
grSmoothing(CHART_MyChart, True)
Syntax

Smoothing a chart Hide the details

grSmoothing(<Chart name> , <Smoothing>)
<Chart name>: Control name or character string
Name of the chart to be used. This name corresponds to:
  • the chart name defined through programming with grCreate.
  • the name of the Chart control in the window, page or report editor.
Android Only Chart controls are available.
PHP Only the interactive Chart controls are available.
<Smoothing>: Boolean
  • True if the smoothing must be enabled,
  • False otherwise.

Smoothing a chart series Hide the details

grSmoothing(<Chart name> , <Series number> , <Smoothing>)
<Chart name>: Control name or character string
Name of the chart to be used. This name corresponds to:
  • the chart name defined through programming with grCreate.
  • the name of the Chart control in the window, page or report editor.
Android Only Chart controls are available.
PHP Only the interactive Chart controls are available.
<Series number>: Integer
Number of the series to smooth.
<Smoothing>: Boolean
  • True if the smoothing must be enabled,
  • False otherwise.
Remarks
The smoothing is taken into account:
  • in Line charts (grLine constant),
  • in Scatter charts (grScatter constant) with linked points (grScatterLinkPoint).
Caution: This function has no effect on a 3D chart.
The parameters defined by grSmoothing will be taken into account during the next call to grDraw.
Related Examples:
WD Chart Training (WINDEV): WD Chart
[ + ] This example presents the different uses of the Chart control.
Different types of charts are presented:
- Pie
- Sunburst
- Line
- Scatter
- Column
- Area
- etc.

The main features presented here are the possibility to customize of charts from the code, as well as to fill the chart from an HFSQL data file, or in the editor.
The Chart functions Unit examples (WEBDEV): The Chart functions
[ + ] This example presents the main features of the chart designer of WEBDEV and it allows you to:
- Create a chart: Pie, Column or Line
- Define the display area of a chart
- Define the options of the chart (legend, percentage, ...)
Component: wd290grf.dll
Minimum version required
  • Version 9
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Last update: 06/22/2023

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