Keyframe fractions must be increasing: 1.0

This error message typically occurs in animation software when keyframe fractions are not set up correctly. Keyframe fractions must be increasing, with the first keyframe's fraction being 0.0 and the last keyframe's fraction being 1.0.

For example, if you have three keyframes in your animation, the fractions should be set up as follows:

- Keyframe 1: 0.0
- Keyframe 2: 0.5
- Keyframe 3: 1.0

If any of the fractions are out of order or not within the range of 0.0 to 1.0, the software will generate this error message.

To fix the issue, check your keyframes and make sure they are set up correctly with increasing fractions.

相关问题

编写一段java代码解决ppt获取内部图片出现异常Keyframe fractions must be increasing: 1.0

这个异常通常在使用 Apache POI 库读取 ppt 文件时出现，原因是 ppt 文件中存在帧的时间轴不连续。解决方法是重新设置帧的时间轴。

以下是一段 Java 代码示例，演示如何处理这个异常：

import java.io.FileInputStream;
import java.io.IOException;

import org.apache.poi.hslf.usermodel.HSLFSlideShow;
import org.apache.poi.hslf.usermodel.HSLFPictureData;
import org.apache.poi.util.IOUtils;

public class PPTImageExtractor {

    public static void main(String[] args) throws IOException {
        String pptFilePath = "path/to/ppt/file.ppt";
        HSLFSlideShow ppt = new HSLFSlideShow(new FileInputStream(pptFilePath));

        // 获取每张幻灯片中的所有图片
        for (int i = 0; i < ppt.getSlides().size(); i++) {
            HSLFPictureData[] pictures = ppt.getSlides().get(i).getPictureData();
            for (int j = 0; j < pictures.length; j++) {
                byte[] pictureData = pictures[j].getData();
                IOUtils.writeFileToDisk(pictureData, "path/to/save/image.jpg");
            }
        }

        ppt.close();
    }

}

这段代码使用了 Apache POI 库来读取 ppt 文件，并遍历每张幻灯片中的所有图片，将图片数据保存到本地文件中。

如果出现异常 `Keyframe fractions must be increasing: 1.0`，可以尝试在读取 ppt 文件时添加以下代码：

System.setProperty("org.apache.poi.hwmf.draw.path.limit", "1000000");

这行代码可以解决一些 ppt 文件读取时出现的问题。

使用java编写一段处理pptx或者是ppt文件的Keyframe fractions must be increasing: 1.0

这个错误通常出现在PPT或者PPTX文件中的动画效果中，意思是动画帧的时间分数必须是递增的。下面是一个处理PPTX文件中动画效果的Java代码示例，它会检查并修复此错误：

import java.io.*;

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

public class PptxAnimationFixer {
    public static void main(String[] args) throws Exception {
        // Load the PPTX file
        XMLSlideShow ppt = new XMLSlideShow(new FileInputStream("input.pptx"));

        // Loop through each slide
        for (XSLFSlide slide : ppt.getSlides()) {
            // Loop through each shape on the slide
            for (XSLFShape shape : slide.getShapes()) {
                // Check if the shape has animations
                if (shape instanceof XSLFTextShape) {
                    XSLFTextShape textShape = (XSLFTextShape) shape;
                    for (XSLFTextParagraph paragraph : textShape.getTextParagraphs()) {
                        for (XSLFTextRun run : paragraph.getTextRuns()) {
                            if (run.getXmlObject().getP().isSetA()) {
                                CTTLCommonTimeNodeData timeNode = run.getXmlObject().getP().getA().getTn();
                                if (timeNode != null) {
                                    // Check if the time fraction values are in increasing order
                                    double lastFraction = 0.0;
                                    boolean fractionsChanged = false;
                                    for (CTTLTimeVariant timeVariant : timeNode.getTavList()) {
                                        if (timeVariant.getV().doubleValue() <= lastFraction) {
                                            // If the fractions are not in increasing order, fix them
                                            timeVariant.setV(lastFraction + 0.01);
                                            fractionsChanged = true;
                                        }
                                        lastFraction = timeVariant.getV().doubleValue();
                                    }
                                    // If we changed any of the fractions, save the changes to the PPTX file
                                    if (fractionsChanged) {
                                        ByteArrayOutputStream baos = new ByteArrayOutputStream();
                                        ppt.write(baos);
                                        ppt = new XMLSlideShow(new ByteArrayInputStream(baos.toByteArray()));
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }

        // Save the fixed PPTX file
        FileOutputStream out = new FileOutputStream("output.pptx");
        ppt.write(out);
        out.close();
    }
}

这段代码使用了Apache POI库来读取和修改PPTX文件中的动画效果。它首先遍历每个幻灯片，然后检查每个形状是否有动画效果。如果一个形状包含文本，那么它会检查每个文本段落和文本运行中的动画效果。如果一个动画效果的时间分数不是递增的，那么它会将它们调整为递增的值（增加0.01），然后保存修改并继续处理下一个形状。最后，它将修改后的PPTX文件保存到输出文件中。