Package com.digitizer.io

Class CsvExporter

java.lang.Object

com.digitizer.io.CsvExporter

public class CsvExporter
extends Object

Handles CSV export of graph digitizer datasets.

The CSV is written in "wide" format where the first column contains distinct X values (sorted) and each following column contains the corresponding Y value for a given dataset. The exporter collates values from multiple series and leaves empty cells when a dataset lacks a value for a particular X.

Export behavior notes:

• Datasets that contain no points are omitted from the CSV header and data columns so spreadsheets do not receive empty/unused columns.
• Values are matched by X using a small tolerance; missing cells are left blank.

Method Summary

Modifier and Type	Method	Description
static void	exportToCsv(String filePath, List<Dataset> datasets)	Exports datasets to a CSV file in wide format.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

exportToCsv

public static void exportToCsv(String filePath,
 List<Dataset> datasets)
                        throws IOException

Exports datasets to a CSV file in wide format. The first column contains x values, followed by one column per dataset containing y values. Datasets with no points are omitted from the CSV to avoid empty columns. Missing values are left blank.

Parameters:

filePath - the path where the CSV file will be written

datasets - the datasets to export (the exporter filters out empty series)

Throws:

IOException - if writing to the file fails