PC SOFT

WINDEVWEBDEV AND WINDEV MOBILE
ONLINE HELP

Home | Sign in | English UK
  • Surface chart
  • Adding data into a chart
WINDEV
WindowsLinuxUniversal Windows 10 AppJavaReports and QueriesUser code (UMC)
WEBDEV
WindowsLinuxPHPWEBDEV - Browser code
WINDEV Mobile
AndroidAndroid Widget iPhone/iPadApple WatchUniversal Windows 10 AppWindows Mobile
Others
Stored procedures
Adds a data into a Surface chart.
Example
x, y, z are real
wImage is Image
 
// Load the photo found in memory in an Image variable
wImage = "sunset.jpg"
 
 
// Scan the image and all the points
// to define the rate of lightness for the point
// via ColorLightness
FOR i = 0 _TO_ wImage..Width STEP 4
FOR j = 0 _TO_ wImage..Height STEP 4
x = i
y = j
z = ColorLightness(dPixelColor(wImage, x, y))
CHART_Surface.SurfaceAddData(x, y, z)
END
END
 
// Draw the chart in the Chart control
CHART_Surface.Draw()
Syntax
<Chart control>.SurfaceAddData(<X> , <Y> , <Z>)
<Chart control>: Control name
Name of the Chart control (found in the window editor or in the report editor).
<X>: Real
X coordinate of the point to add.
<Y>: Real
Y coordinate of the point to add.
<Z>: Real
Z coordinate of the point to add.
Remarks

Surface chart

For the data in a Surface chart, the XY plane constitutes the base of the surface while Z indicates the height of the point.

Adding data into a chart

<Chart>.AddData is used to add data into a chart (pie, column, ...).
Depending on the type of chart, specific functions can also be used to add data:
Reminder: To add a value to a chart data, use <Chart>.IncreaseData.
Related Examples:
WD Chart Training (WINDEV): WD Chart
[ + ] This educational example present different uses of the chart control.
The following charts are presented:
- Semi-circular
- Donut
- Pie
- Sunburst
- Line
- Scatter
- 3D Scatter
- Column
- Area
- Bubble
- Radar
- Funnel
- Surface
- Waterfall
- Composite

The main features presented in this example are the ability to customize the charts by programming as well as the method used to fill a chart from a HFSQL file or in the editor.
Component : wd250grf.dll
Minimum version required
  • Version 23
This page is also available for…
Comments
Click [Add] to post a comment