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2.2.4.46.78 Worksheet::SetEvenSampling

SetEvenSampling

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

Description

Many operations in Origin, like plotting and some analysis routines can run faster if a column is set to be evenly spaced. Set a column or all columns in worksheet to be evenly spaced so there is no to use X column

Syntax

int SetEvenSampling( double x0, double xInc, Column & cc = NULL, LPCSTR lpcszXUnits = NULL, LPCSTR lpcszXLongName = NULL, BOOL bUndo = FALSE )

Parameters

x0: [input] X value of first row
xInc: [input] X increment between each row
cc: [input] if NULL, set all columns, otherwise set only the specified column
lpcszXUnits: [input] if not NULL, will set as X unit. default is NULL.
lpcszXLongName: [input] if not NULL, will set as X long name. default is NULL.
bUndo: [input] undo

Return

0 for success

if cc is not set, then all cols in wks is set to same.

If cc is not set and wks has ANY X col, returns -1

if cc is set and it has X to the left, returns -2

Examples

EX1

//Set even sampling in the active worksheet.
void Worksheet_SetEvenSampling_Ex1()
{
    Worksheet wks = Project.ActiveLayer();
    if( wks )
    {
        foreach(Column cc in wks.Columns)
        {
            int nRet = wks.SetEvenSampling(10, 1, cc);
        }
    }
}

Remark

Header to Include

origin.h