Hello All,

I am working on a VB application that allows a user to change many options
on a 3D XYZ Surface plot. I am unable to figure out how to change the
colors for each of the surfaces. I can record a Statistica-VB macro while I
change these on an existing plot (right-click, graph properties, plot:
fitting, surface specs, defining colors), but these steps do not show up in
the macro text.

Any assistance you can give would be most beneficial. I am using Statistica
6.0 and VB 6.0, some sample code showing my current status is below.

Thank you.
-Chad Voelker

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Private Function ObtainGraph(tGraph As tGraphPrefs, dStarting As Date,
dEnding As Date, lInterval As Long) As String()
Dim appStatistica As STATISTICA.Application

'Create a Statictica Spreadsheet
Set appStatistica = CreateObject("STATISTICA.Application")
Dim sprData As New Spreadsheet
Set sprData = appStatistica.ActiveSpreadsheet


'Place data in the Statictica Spreadsheet
sprData.SetSize 9, 3

sprData.Value(1, 1) = 10
sprData.Value(1, 2) = 10
sprData.Value(1, 3) = 100

'code removed for brevity

'Set the X and Y axis labels
sprData.VariableName(1) = "X Position"
sprData.VariableName(2) = "Y Position"
'Set the Z axis label = to the type of graph
If (tGraph.eType = AirSpeed) Then
sprData.VariableName(3) = "AirSpeed"
Else
sprData.VariableName(3) = "Temperature"
End If

'Create new Statictica Analysis
Dim dataAnalysis As Analysis

If (tGraph.eDimension = ThreeD) Then
Set dataAnalysis = appStatistica.Analysis(sc3dSurfacePlots, sprData)
Else
Set dataAnalysis = appStatistica.Analysis(sc3dContourPlots, sprData)
End If
With dataAnalysis.Dialog
'Always going to use three columns (X position, Y position, Value)
.Variables = "1 | 2 | 3"

'Obtain interpolation method from graph preferences
Dim scFit As eInterpolation
scFit = tGraph.eInterploationMethod
'Using graph preferences, set the type of interpolation
If (scFit = LINEAR) Then
.FitType = scXYZFitLinear
ElseIf (scFit = QUADRATIC) Then
.FitType = scXYZFitQuadratic
ElseIf (scFit = DWEIGHTEDLS) Then
.FitType = scXYZFitDistanceWeightedLeastSquares
ElseIf (scFit = NEWEIGHTEDLS) Then
.FitType = scXYZFitNegExponWeightedLeastSquares
ElseIf (scFit = SPLINE) Then
.FitType = scXYZFitSpline
End If

'Use graph preferences to decide whether or not to show raw data points
.ShowRawDataPoints = tGraph.bShowActualPoints

'We do not want to display multiple statistics in the graph
.DisplayMultiple_r_z_xy_p = False
End With

With dataAnalysis.Dialog.Options
'Set up title so that display what user entered (using graph prefs)
.DisplayDefaultTitle = False
.TitlePosition = scTitleTop
.Title = tGraph.sTitle

'Display Sub Title
.DisplayDefaultFootnote = True
.Footnote = tGraph.sSubTitle

'Use the spreadsheet headers (Set on spreadsheet above)
.DisplayCaseLabels = scCaseLabelOff
.CaseLabelsVariable = "1"

'We want to display axis text
.DisplayTextValuesAsAxisValues = True

'We want to use standard coordinates and axis
.CoordinateSystem = scCoordinateStandard
.XYAxisPosition = scAxisStandard

'Do not display the chart fit type
.DisplayFitExpressionInTitle = scFitOptionOff

'We want to leave the polynomial order to quadratic for all graphs
.PolynomialOrder = scQuadraticOrder

'All of the axis types should be linear scale
.AxisType(scX) = scLinearScale
.AxisType(scY) = scLinearScale
.AxisType(scZ) = scLinearScale
.AxisType(scV) = scLinearScale

End With

'Get graph object from Statistica
Dim theGraph As Graph
Set theGraph = dataAnalysis.Dialog.Graphs(1)
'Get the graph's layout
Dim theLayout As Layout3DScatterplot
Set theLayout = theGraph.Content
'Set the point of view for the graph's layout
If (tGraph.eDimension = ThreeD) Then
theLayout.PointOfView.HorizontalAngle = tGraph.iHorizontal
theLayout.PointOfView.VerticalAngle = tGraph.iVertical
Else
theLayout.PointOfView.HorizontalAngle = 90
theLayout.PointOfView.VerticalAngle = 90
End If
'Color *****does not work*****
'testLayout.Functions.Item(1).Surface.Style.Colors.Color(1).Color =
RGB(255, 10, 255)
'.Surface.BackColor = RGB(255, 10, 255)
'.Colors.Item.Color = RGB(255, 10, 255)
'testPlot.Item(1).Area.BackgroundColor.Color = RGB(255, 10, 255)
theGraph.Visible = True
'Temporarily display statistica
'dataAnalysis.RouteOutput(dataAnalysis.Dialog.Graphs).Visible = True

'Output graph to temporary location
appStatistica.Graphs(1).SaveAs "c:\temp\graphoutput.jpg", True

Dim sLocations(0) As String
sLocations(0) = "c:\temp\graphoutput.jpg"
ObtainGraph = sLocations

End Function
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