Curve_MinMax

1 Description
2 Syntax
3 Parameters
4 Return
5 Examples
6 Remark
7 See Also
8 header to Include
9 Reference

Description

Get X and Y range of the Curve.

Syntax

BOOL Curve_MinMax( const curvebase * pcuvData, double * pxMin, double * pxMax, BOOL bScanData = FALSE, double * pyMin = NULL, double * pyMax = NULL )

Parameters

pcuvData: [input] Pointer to Curve
pxMin: [output] pointer to double for X min, NULL if no need to get this value
pxMax: [output] pointer to double for X max, NULL if no need to get this value
bScanData: [input] TRUE will scan both XY dataset of the curve for min and max,; FALSE will reuse internal cached values. Typically there is no need to scan; unless data has changed
pyMin: [output] pointer to double for Y min, NULL if no need to get this value
pyMax: [output] pointer to double for Y max, NULL if no need to get this value

Return

True for success

Examples

EX1

// This is a self contained sample program for the function Curve_MinMax, 
// Its sample data is created at the beginning of the program. 
// To run the program, enter the following command in the Script window:
//   Curve_MinMax_ex1
// It returns a message like the following line:
//   Data ranges of Data2  X: Min=1, Max=7  Y: Min=0.097, Max=0.64529

void Curve_MinMax_ex1()
{    
    double xMin,xMax,yMin,yMax;
    string wksName;
    BOOL rc;

    Worksheet wks;
    wks.Create();
    wksName=wks.GetPage().GetName();
    Dataset myInXDs(wks,0);
    Dataset myInYDs(wks,1);
    
    //******* Create sample data *****************
    myInXDs.SetSize(7);
    myInYDs.SetSize(7);
    myInXDs[0]=1;    myInYDs[0]=0.097;
    myInXDs[1]=2;    myInYDs[1]=0.41256;
    myInXDs[2]=3;    myInYDs[2]=0.24909;
    myInXDs[3]=4;    myInYDs[3]=0.47304;
    myInXDs[4]=5;    myInYDs[4]=0.2476;
    myInXDs[5]=6;    myInYDs[5]=0.64529;
    myInXDs[6]=7;    myInYDs[6]=0.44514;
    //******** End of Sample Data Creation *******

    Curve cuvData(wks,0,1);

    BOOL bScanData = FALSE;  // No scan for XY datasets
    rc = Curve_MinMax(&cuvData,&xMin,&xMax,bScanData,&yMin,&yMax); //Demonstration of Curve_MinMax
        
    if(rc)
        printf("Data ranges of %s  X: Min=%g, Max=%g  Y: Min=%g, Max=%g\n",
          wksName,xMin,xMax,yMin,yMax);
    else
        printf("Curve_MinMax Failed.\n");
}