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Stored procedures
Adds a data into a Heatmap chart.
grHMAddData(CHART_Chart1, 1, 1, 10)
grHMAddData(CHART_Chart1, 1, 2, 30)
grHMAddData(CHART_Chart1, 2, 1, 20.5)
grHMAddData(CHART_Chart1, 2, 2, 5)
// Define the colors
grHMColor(CHART_HMap, -50, DarkBlue)
grHMColor(CHART_HMap, +50, LightRed)
FOR i = 1 TO 500
grHMAddData(CHART_HMap, Random(-100, 100), Random(-100, 100), -100)
grHMAddData(CHART_HMap, Random(-100, 100), Random(-100, 100), 100)
grHMAddData(<Chart name> , <X> , <Y> , <Value>)
<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 or report editor.
PHP Only the interactive Chart controls are available.
<X>: Integer
Position of the data on the X axis.
<Y>: Integer
Position of the data on the Y axis.
<Value>: Integer or real
Value to add. If a value is already found at the specified (X, Y) position, the existing value is replaced with the new value.
The data defined by grHMAddData 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.
Component: wd290grf.dll
Minimum version required
  • Version 21
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Last update: 06/22/2023

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