@f{ncvaluefromdata}

Displays the value of a data point of a netCDF data file channel. The file name of the netCDF data file will be received via the connected dataset.

@f{ncvaluefromdata(DatasetName, ChannelName, PointNo)}

@f{ncvaluefromdata(DatasetName, ChannelName, PointNo, ssFormat)}

@f{ncvaluefromdata(DatasetName, CahnnelName, PointNo, ssFormatFuncName)}

Parameters

DatasetName

Is the dataset name, for example Data1. The dataset name of the selected dataset will be displayed in the status bar. The dataset name is used to receive the netCDF file name.

ChannelName

Is the channel name of a netCDF file.

PointNo

Is the point number starting with 1. Negative point numbers access a point starting from the end. The value -1 returns the last data point.

ssFormat

Is an optional format string (see printf).

ssFormatFuncName

Is the name of an optional format function:

def MyFormat(ssText)
{
   ssNewText = ...
   return ssNewText;
}

Example

@f{ncvaluefromdata(Data1, N, 0)}

Output:

600.00

Example

def MyDateFormat(ssText)
{
   // Example: G100616_3
   ssYear = strextract(ssText, 2, 2);
   ssMonth = strextract(ssText, 4, 2);
   ssDay = strextract(ssText, 6, 2);
   return ssDay + "." + ssMonth + ".20" + ssYear;
}

@f{ncvaluefromdata(Data1, DataFile, -1, MyDateFormat)}

Output

16.06.2010

See also

Overview Field Functions, Edit=>Update Fields, Diagram=>Insert Field Function, @f{ncattfromdata}

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