在幻灯片的特定位置缩放和插入图像（PPTX）

Question

我想在幻灯片中插入图片（每张幻灯片 3 张图片），我可以在每张幻灯片中插入一张图片，但我想要实现的更复杂，我需要将每张图片缩放到特定大小（高度和宽度）并将其插入幻灯片，我想让这个过程变得简单的方法是将文本放在幻灯片中（作为固定幻灯片的模板），用图像替换文本。我在谷歌上搜索了很多但没有找到关于缩放和将图像放置在幻灯片中的帮助，下面是 link 到 msdn，它可以在每张幻灯片中放置一张图像 Placing one image per slide - MSDN

如有任何帮助，我们将不胜感激。

Answer 1

终于得到它做了一些研发使用 openxml 生产力工具并得出了答案，下面的代码将图像放置到指定的幻灯片，假设模板已经存在

        public class SegmentationShapeProperties
    {
        public Int64 OffsetX { get; set; }
        public Int64 OffsetY { get; set; }
        public Int64 ScaleX { get; set; }
        public Int64 ScaleY { get; set; }
    }   
    public class SegmentationSlideInputData
    {
        public int SlideId { get; set; }
        public OpenXmlUtils.SegmentationShapeProperties ShapeProperties { get; set; }
    }

 public void InsertImages(List<string> imageFilesWithPath, string presentation)
    {
        using (PresentationDocument prstDoc = PresentationDocument.Open(presentation, true))
        {
            PresentationPart presentationPart = prstDoc.PresentationPart;
            var slideParts = OpenXmlUtils.GetSlidePartsInOrder(presentationPart); //gets all the slide parts present in the documetn
            Slide slide = null;
            foreach (string imageWithPath in imageFilesWithPath)
            {
                SegmentationSlideInputData data = GetWorkingImageDetails(Path.GetFileName(imageWithPath));//function which decides which slide to work on and image scaling options
                slide = slideParts.ElementAt(data.SlideId).Slide;
                Picture pic = OpenXmlUtils.AddPicture(slide, imageWithPath, data.ShapeProperties);
                slide.Save();
            }
            prstDoc.PresentationPart.Presentation.Save();
        }
    }

  private SegmentationSlideInputData GetWorkingImageDetails(string fileName)
    {
        SegmentationSlideInputData data = new SegmentationSlideInputData();
        data.SlideId = 0;//slide id to work on
        data.ShapeProperties = new OpenXmlUtils.SegmentationShapeProperties() { OffsetX = 4695825L, OffsetY = 504825L, ScaleX = 6721828L, ScaleY = 1988495L };//offset specifies the position, scale specifies the height and widht of image
                break;
        }
        return data;
    }


internal static P.Picture AddPicture(this Slide slide, string imageFile, SegmentationShapeProperties sP)
    {
        P.Picture picture = new P.Picture();

        string embedId = string.Empty;
        UInt32Value picId = 10001U;
        string name = string.Empty;

        if (slide.Elements<P.Picture>().Count() > 0)
        {
            picId = ++slide.Elements<P.Picture>().ToList().Last().NonVisualPictureProperties.NonVisualDrawingProperties.Id;
        }
        name = "image" + picId.ToString();
        embedId = "rId" + (RandomString(5)).ToString(); // some value

        P.NonVisualPictureProperties nonVisualPictureProperties = new P.NonVisualPictureProperties()
        {
            NonVisualDrawingProperties = new P.NonVisualDrawingProperties() { Name = name, Id = picId, Title = name },
            NonVisualPictureDrawingProperties = new P.NonVisualPictureDrawingProperties() { PictureLocks = new Z.Drawing.PictureLocks() { NoChangeAspect = true } },
            ApplicationNonVisualDrawingProperties = new ApplicationNonVisualDrawingProperties() { UserDrawn = true }
        };

        P.BlipFill blipFill = new P.BlipFill() { Blip = new Z.Drawing.Blip() { Embed = embedId } };
        Z.Drawing.Stretch stretch = new Z.Drawing.Stretch() { FillRectangle = new Z.Drawing.FillRectangle() };
        blipFill.Append(stretch);

        P.ShapeProperties shapeProperties = new P.ShapeProperties()
        {
            Transform2D = new Z.Drawing.Transform2D()
            {
                //Offset = new Z.Drawing.Offset() { X = 1835696L, Y = 1036712L },
                //Extents = new Z.Drawing.Extents() { Cx = 5334617, Cy = 1025963 }
                Offset = new Z.Drawing.Offset() { X = sP.OffsetX, Y = sP.OffsetY },
                Extents = new Z.Drawing.Extents() { Cx = sP.ScaleX, Cy = sP.ScaleY }
            }
        };
        Z.Drawing.PresetGeometry presetGeometry = new Z.Drawing.PresetGeometry() { Preset = Z.Drawing.ShapeTypeValues.Rectangle };
        Z.Drawing.AdjustValueList adjustValueList = new Z.Drawing.AdjustValueList();

        presetGeometry.Append(adjustValueList);
        shapeProperties.Append(presetGeometry);
        picture.Append(nonVisualPictureProperties);
        picture.Append(blipFill);
        picture.Append(shapeProperties);

        slide.CommonSlideData.ShapeTree.Append(picture);

        // Add Image part
        slide.AddImagePart(embedId, imageFile);

        slide.Save();
        return picture;
    }


private static void AddImagePart(this Slide slide, string relationshipId, string imageFile)
    {
        ImagePart imgPart = slide.SlidePart.AddImagePart(GetImagePartType(imageFile), relationshipId);
        using (FileStream imgStream = File.Open(imageFile, FileMode.Open))
        {
            imgPart.FeedData(imgStream);
        }
    }

在幻灯片的特定位置缩放和插入图像（PPTX）

Scale and Insert images at a particular position in a Slide(PPTX)

c#

powerpoint

openxml

openxml-sdk