grClearPict (Function)

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Chart management functions

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grClearPict (Function)

In french: grEffaceDessin

Erases the chart drawing (in an Image control or in a window).

Remark: The chart is not deleted. The chart data and parameters are stored in memory. Simply call grDraw to re-display the chart.

Versions 15 and later

This function is now available for WEBDEV sites in Linux.

Caution: A specific configuration is required to use this function in Linux. For more details, see The charts.

New in version 15

This function is now available for WEBDEV sites in Linux.

Caution: A specific configuration is required to use this function in Linux. For more details, see The charts.

This function is now available for WEBDEV sites in Linux.

Caution: A specific configuration is required to use this function in Linux. For more details, see The charts.

Versions 16 and later

This function is now available for WINDEV applications in Linux.

New in version 16

This function is now available for WINDEV applications in Linux.

Versions 17 and later

This function is now available for iPhone/iPad applications.

New in version 17

This function is now available for iPhone/iPad applications.

Versions 18 and later

This function is now available in Windows Store apps mode.

New in version 18

This function is now available in Windows Store apps mode.

Versions 21 and later

This function is now available in Universal Windows 10 App mode.

New in version 21

This function is now available in Universal Windows 10 App mode.

Example

// Erase the chart named "MyChart"
grClearPict("MyChart")

Syntax

grClearPict(<Chart name>)

<Chart name>: Control name or character string

Name of the chart to erase. This name corresponds to:
the chart name defined through programming with grCreate.
the name of the Chart control (in the window or page editor).

Remarks

If the chart is drawn in an independent window, the window is closed.
grClearPict has no effect if the chart is not drawn.
grClearPict has no effect in reports.
To delete the chart data, use grDeleteSeries or grDeleteAll.

Related Examples:

Unit examples (WINDEV): The Chart functions

[ + ] Using the main chart designer features of WINDEV:
- Create a Pie, Column or Line chart
- Define the display area of a chart
- Define the chart options (legend, percentage, ...)
- Draw a line on a 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: wd270grf.dll