Your First Aspose.Diagram Application - Hello World

Creating the Hello World Application

The steps below creates the Hello World application using the Aspose.Diagram API:

  1. Créer une instance deDiagram classer.
  2. Si vous avez une licence, alorsappliquez-le. Si vous utilisez la version d’évaluation, ignorez les lignes de code liées à la licence.
  3. Créez un nouveau fichier Visio ou ouvrez un fichier Visio existant.
  4. Créez une nouvelle zone de texte.
  5. Insérez les motsHello World! dans une zone de texte.
  6. Générez le fichier Microsoft Visio modifié.

La mise en œuvre des étapes ci-dessus est illustrée dans les exemples ci-dessous.

Exemple de code : création d’un nouveau Diagram

The following example creates a new diagram from the scratch, writes Hello World! on the first page and saves the Visio file.

// For complete examples and data files, please go to https://github.com/aspose-diagram/Aspose.Diagram-for-Java
// The path to the documents directory.
String dataDir = Utils.getDataDir(CreateNewVisio.class);
// initialize a Diagram class
Diagram diagram = new Diagram();
// save diagram in the VSDX format
diagram.save(dataDir + "CreateNewVisio_Out.vsdx", SaveFileFormat.VSDX);

Exemple de code : ouverture d’un fichier existant

The following example opens an existing Microsoft Visio template file named “Sample.vsdx”, inputs “Hello World!” text in the first page and saves the diagram.

// For complete examples and data files, please go to https://github.com/aspose-diagram/Aspose.Diagram-for-Java
// The path to the documents directory.
String dataDir = Utils.getDataDir(ReadVisioDiagram.class);
// Open the stream. Read only access is enough for Aspose.Diagram to load a diagram.
InputStream stream = new FileInputStream(dataDir + "Drawing1.vsdx");
//Call the diagram constructor to load diagram from a VSDX stream
Diagram vsdDiagram = new Diagram(stream);
stream.close();
//Call the diagram constructor to load diagram from a VDX file
Diagram vdxDiagram = new Diagram(dataDir + "Drawing1.vdx");
/*
* Call diagram constructor to load diagram from a VSS file
* providing load file format
*/
Diagram vssDiagram = new Diagram(dataDir + "Basic.vss", LoadFileFormat.VSS);
/*
* Call diagram constructor to load diagram from a VSX file
* providing load options
*/
LoadOptions loadOptions = new LoadOptions(LoadFileFormat.VSX);
Diagram vsxDiagram = new Diagram(dataDir + "Drawing1.vsx", loadOptions);