GetInfo(string) Method (original) (raw)
Summary
Gets information about the specified annotation file.
Syntax
C#
Objective-C
C++/CLI
Java
Python
- (LTAnnCodecsInfo *)getInfo:(NSString *)xmlData NS_SWIFT_NAME(getInfo(from:)); public AnnCodecsInfo getInfo(String xmlData) Parameters
fileName
Name of the file containing annotations data previously saved with AnnCodecs.Save. This value cannot be null.
Return Value
An AnnCodecsInfo object that will be updated with information about the specified annotation file.
Example
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 inches
AnnContainer 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 2in
AnnPolylineObject 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 4in
AnnRectangleObject 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 container
ShowContainer("Before save", container);
// Create the codecs object to save and load annotations
AnnCodecs codecs = new AnnCodecs();
// Save the container
string destFileName = @"container.xml";
codecs.Save(destFileName, container, AnnFormat.Annotations, 1);
// delete the container
container = null;
// Show information about the data we just saved
AnnCodecsInfo 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 saved
XmlDocument 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 saved
container = codecs.Load(destFileName, 1);
// Show it
ShowContainer("After load", container);
// delete the container
container = null;
// Load the XML container just saved
container = codecs.LoadFromString(xmlDoc.OuterXml, 1);
// Show it
ShowContainer("After load from string", container);
// Save Active Layer using a Stream output
AnnLayer 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 output
AnnLayer layer2 = AnnLayer.Create("MyLayer2");
container.ActiveLayer = layer2;
codecs.SaveLayer("StringActiveLayer.xml", layer2, AnnFormat.Annotations, 1);
// Save Layer to string
AnnLayer layer4 = AnnLayer.Create("MyLayer4");
string stringLayer = codecs.SaveLayerToString(layer4, AnnFormat.Annotations);
Debug.WriteLine($"{stringLayer}");
// Use SelectionObject, set ActiveLayer, Change Offset, Change PageNumber, and Save to string
AnnLayer layer5 = AnnLayer.Create("MyLayer5");
AnnSelectionObject annSelectionObject = container.SelectionObject;
annSelectionObject.IsSelected = true;
container.ActiveLayer = layer5;
container.Offset = new LeadPointD(10, 10);
container.PageNumber = 3;
string saveToString = codecs.SaveToString(container, AnnFormat.Annotations, 1);
Debug.WriteLine($"{saveToString}");
//Load from String
AnnContainer annContainer = codecs.LoadFromString(saveToString, 1);
Debug.WriteLine($"{annContainer.PageNumber}");
}
private void ShowContainer(String message, AnnContainer container)
{
string str = message + "\nContainer size: ";
// Add the size
double inch = 720;
double width = container.Size.Width / inch;
double height = container.Size.Height / inch;
str += width + " by " + height + " inches" + "\n";
// Add the objects
str += "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);
}