public AnnCodecsInfo GetInfo(Stream stream)
public:AnnCodecsInfo^ GetInfo(Stream^ stream)
def GetInfo(self,stream):
stream
Stream containing annotations data previously saved with AnnCodecs.Save. This value cannot be null.
An AnnCodecsInfo object that will be updated with information about the specified annotation file.
If stream contains valid LEADTOOLS annotations data, then this method will return an instance of AnnCodecsInfo containing the following:
| Member | Description |
|---|---|
| Format |
Set to AnnFormat.Annotations |
| Version |
Set to the version of the LEADTOOLS Annotations file format. Currently, this will be 1.0 |
| Pages |
Set to an array of integer values containing the page numbers of the annotations containers found in the data. |
If stream does not contain valid LEADTOOLS annotations data, then this method will return instance of AnnCodecsInfo with Format set to AnnFormat.Unknown.
If stream is null or does not contain valid annotations XML data, then an exception will be thrown.
using Leadtools.Annotations.Automation;using Leadtools.Annotations.Engine;using Leadtools.Annotations.Rendering;public void AnnCodecs_AnnCodecs(){// Create a new annotation container, 8.5 by 11 inchesAnnContainer container = new AnnContainer();// Size must be in annotation units (1/720 of an inch)container.Size = LeadSizeD.Create(8.5 * 720, 11 * 720);double inch = 720.0;// Add a red line object, from 1in 1in to 2in 2inAnnPolylineObject lineObj = new AnnPolylineObject();lineObj.Points.Add(LeadPointD.Create(1 * inch, 1 * inch));lineObj.Points.Add(LeadPointD.Create(2 * inch, 2 * inch));lineObj.Stroke = AnnStroke.Create(AnnSolidColorBrush.Create("Red"), LeadLengthD.Create(1));container.Children.Add(lineObj);// Add a blue on yellow rectangle from 3in 3in to 4in 4inAnnRectangleObject rectObj = new AnnRectangleObject();rectObj.Rect = LeadRectD.Create(3 * inch, 3 * inch, 1 * inch, 1 * inch);rectObj.Stroke = AnnStroke.Create(AnnSolidColorBrush.Create("Blue"), LeadLengthD.Create(1));rectObj.Fill = AnnSolidColorBrush.Create("Yellow");container.Children.Add(rectObj);// Show the containerShowContainer("Before save", container);// Create the codecs object to save and load annotationsAnnCodecs codecs = new AnnCodecs();// Save the containerstring destFileName = @"container.xml";codecs.Save(destFileName, container, AnnFormat.Annotations, 1);// delete the containercontainer = null;// Show information about the data we just savedAnnCodecsInfo info = codecs.GetInfo(destFileName);string message;if (info.Format == AnnFormat.Annotations){message = "Version: ";message += info.Version;message += " No. of pages: ";message += info.Pages.Length;message += " page nos: ";for (int i = 0; i < info.Pages.Length; i++){message += info.Pages[i] + " ";}}else{message = "Invalid annotations data";}Debug.WriteLine(message);// Show information about the XML data we just savedXmlDocument xmlDoc = new XmlDocument();xmlDoc.Load(destFileName);AnnCodecsInfo infoFromString = codecs.GetInfoFromString(xmlDoc.OuterXml);Debug.WriteLine($"====================");Debug.WriteLine($"Get Info From String");Debug.WriteLine($"Format: {infoFromString.Format}");Debug.WriteLine($"Version: {infoFromString.Version}");Debug.WriteLine($"Pages: {infoFromString.Pages.Length}");Debug.WriteLine($"====================");// Load the container we just savedcontainer = codecs.Load(destFileName, 1);// Show itShowContainer("After load", container);// delete the containercontainer = null;// Load the XML container just savedcontainer = codecs.LoadFromString(xmlDoc.OuterXml, 1);// Show itShowContainer("After load from string", container);// Save Active Layer using a Stream outputAnnLayer layer = AnnLayer.Create("MyLayer");container.ActiveLayer = layer;Stream stream = File.Create("StreamActiveLayer.xml");codecs.SaveLayer(stream, container.ActiveLayer, AnnFormat.Annotations, 1);// Save Active Layer using a File outputAnnLayer layer2 = AnnLayer.Create("MyLayer2");container.ActiveLayer = layer2;codecs.SaveLayer("StringActiveLayer.xml", layer2, AnnFormat.Annotations, 1);// Save Layer to stringAnnLayer layer4 = AnnLayer.Create("MyLayer4");string stringLayer = codecs.SaveLayerToString(layer4, AnnFormat.Annotations);Debug.WriteLine($"{stringLayer}");// Use SelectionObject, set ActiveLayer, Change Offset, Change PageNumber, and Save to stringAnnLayer layer5 = AnnLayer.Create("MyLayer5");AnnSelectionObject annSelectionObject = container.SelectionObject;annSelectionObject.IsSelected = true;container.ActiveLayer = layer5;container.Offset = new LeadPointD(10, 10);container.PageNumber = 3;string saveToString = codecs.SaveToString(container, AnnFormat.Annotations, 1);Debug.WriteLine($"{saveToString}");//Load from StringAnnContainer annContainer = codecs.LoadFromString(saveToString, 1);Debug.WriteLine($"{annContainer.PageNumber}");}private void ShowContainer(String message, AnnContainer container){string str = message + "\nContainer size: ";// Add the sizedouble inch = 720;double width = container.Size.Width / inch;double height = container.Size.Height / inch;str += width + " by " + height + " inches" + "\n";// Add the objectsstr += "Contains " + container.Children.Count + " objects(s)\n";for (int i = 0; i < container.Children.Count; i++){AnnObject annObj = container.Children[i];str += "Object: " + annObj.FriendlyName + " at ";for (int j = 0; j < annObj.Points.Count; j++){LeadPointD pt = annObj.Points[j];double x = pt.X / inch;double y = pt.Y / inch;str += "(" + x + ", " + y + ") ";}str += "\n";}Debug.WriteLine(str);}
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