调整XSLFChart的大小

import org.apache.poi.xslf.usermodel.*;

public class ChartResizeExample {

    public static void main(String[] args) throws Exception {
        // 加载PPTX文件
        XMLSlideShow ppt = new XMLSlideShow(new FileInputStream("presentation.pptx"));

        // 获取Slide对象
        XSLFSlide slide = ppt.getSlides().get(0);

        // 获取所有形状对象
        for (XSLFShape shape : slide.getShapes()) {
            // 判断形状对象是否为图表
            if (shape instanceof XSLFChart) {
                // 调整图表大小
                XSLFChart chart = (XSLFChart) shape;
                java.awt.Rectangle newBounds = new java.awt.Rectangle(x, y, width, height);
                chart.setAnchor(newBounds);
            }
        }

        // 保存修改后的PPTX文件
        FileOutputStream out = new FileOutputStream("modified_presentation.pptx");
        ppt.write(out);
        out.close();
    }
}