ChangeTypeOfChartsCategoryAxis.java

package com.aspose.slides.examples.Slides.Charts;

import com.aspose.slides.CategoryAxisType;
import com.aspose.slides.IChart;
import com.aspose.slides.Presentation;
import com.aspose.slides.SaveFormat;
import com.aspose.slides.TimeUnitType;
import com.aspose.slides.examples.Utils;

public class ChangeTypeOfChartsCategoryAxis {

	public static void main(String[] args) {

		// The path to the documents directory.
		String dataDir = Utils.getDataDir(ChangeTypeOfChartsCategoryAxis.class);

		Presentation pres = new Presentation(dataDir + "ExistingChart.pptx");
		try {
			IChart chart = (IChart) pres.getSlides().get_Item(0).getShapes().get_Item(0);
			chart.getAxes().getHorizontalAxis().setCategoryAxisType(CategoryAxisType.Date);
			chart.getAxes().getHorizontalAxis().setAutomaticMajorUnit(false);
			chart.getAxes().getHorizontalAxis().setMajorUnit(1);
			chart.getAxes().getHorizontalAxis().setMajorUnitScale(TimeUnitType.Months);
			pres.save(dataDir + "Sample.pptx", SaveFormat.Pptx);
		} finally {
			if (pres != null)
				pres.dispose();
		}
	}
}