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- Surface chart
- Adding data into a chart
grSurfaceAddData (Function) Adds a data into a Surface chart. x, y, z are real
wImage is Image
wImage = "sunset.jpg"
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))
grSurfaceAddData(CHART_Surface, x, y, z)
END
END
grDraw(CHART_Surface)
Sintaxis
grSurfaceAddData(<Chart name> , <X> , <Y> , <Z>)
<Chart name>: Control name or character string Name of the chart to be used. This name corresponds to:- the name of the chart defined programmatically with grCreate.
- the name of 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. Observaciones 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 grAddData 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 data item on a graph, use the grIncreaseData function.
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