2.2.4.17.2 GraphLayer::AddLabelPlot

AddLabelPlot

Description

Adds a label plot to an existing dataplot.

Syntax

int AddLabelPlot( Curve & cData, Column & colLabel )

int AddLabelPlot( Curve & cData, Dataset & dsLabel )

Parameters

cData

[input] Data curve to add the label plot to

colLabel

[input] the Data curve to be used as label column

cData

[input] Data curve to add the label plot to

dsLabel

the dataset to be used as labels

Return

Examples

EX1

// For this example to run, a worksheet with columns "A" and "B" and another label column
// (the third column) must exist. 
// After the function executes, the third column of the worksheet will be used
// for labels
void    GraphLayer_AddLabelPlot_ex1()
{
    //we need to first make sure the label column is really a Label column
    Worksheet wks = Project.WorksheetPages(0).Layers(0);
    if(wks)
    {
        if(!wks.Columns(2).SetType(OKDATAOBJ_DESIGNATION_L))
            return;
    }
    else
        return;
    
    GraphPage gp;
    gp.Create("origin");
    GraphLayer lay = gp.Layers(0);

    // a dataplot in the layer that uses column B as Y and column A as X
    Curve            cc(wks, 0, 1);
    
    // first we plot col(B)
    int                nPlotIndex = lay.AddPlot(cc, IDM_PLOT_SCATTER);
    // use the third column in the worksheet for labels:
    Column            colLabels(wks, 2);        
    nPlotIndex = lay.AddLabelPlot(cc, colLabels);
    out_int("nPlotIndex = ", nPlotIndex);
    
    lay.Rescale();
}

EX2

//For this example to run, a worksheet with columns "A" 
//and "B" and a label column "C" must exist. 
//Draw a 2d scatter plot with column C as lable.
void Graphlayer_AddLabelPlot_ex2()
{
    Worksheet wks = Project.WorksheetPages(0).Layers(0);
 
    if(wks)
    {
        if(!wks.Columns(2).SetType(OKDATAOBJ_DESIGNATION_L))
            return;
        Dataset dsLables(wks, 2);
 
        GraphPage gp;
        gp.Create("origin");
        GraphLayer glMyLayer = gp.Layers(0);
        Curve crvMyCurve(wks, 0, 1);
    glMyLayer.AddPlot(crvMyCurve, IDM_PLOT_SCATTER);   
 
        int iPlotIndex = glMyLayer.AddLabelPlot(crvMyCurve, dsLables);
        glMyLayer.Rescale();
        if (iPlotIndex==-1)
            printf("Lables adding Error!");
        else
            printf("Lables added successfully!");
    }
    else
        return;
}

Remark

See Also

Header to Include

origin.h