Use Connection indexes to connect shapes

Add new Connections on the shape and use Connection indexes to connect shapes

Aspose.Diagram for .NET API already allows developers to add new connecting points on the shape, and developers can now connect shapes using connection indexes.

Use Connection indexes to connect shapes

The ConnectShapesViaConnectorIndex member exposed by the Page class can be used to connect shapes using connection indexes. The following code shows how to connect shapes:

  1. Initialize a new drawing.
  2. Place four rectangle shapes
  3. Add two additional connection points, so that there would be three connection points on the bottom border line
  4. Connect first shape from each bottom connection to other three rectangle shapes from Top with dynamic connectors
  5. Save drawing

use connection indexes to connect shapes Programming Sample

Use the following code in your .NET application to connect shapes using connection indexes with Aspose.Diagram for .NET API.

C#

 // initialize a new drawing

Diagram diagram = new Diagram();

// get page by index

Aspose.Diagram.Page page = diagram.Pages[0];

// add masters

string connectorMaster = "Dynamic connector", rectangle = "Rectangle";

int pageNumber = 0;

double width = 2, height = 2, pinX = 4.25, pinY = 9.5;

diagram.AddMaster(@"C:\temp\Basic Shapes.vss", rectangle);

diagram.AddMaster(@"C:\temp\Basic Shapes.vss", connectorMaster);

// add shapes

long shape1_ID = diagram.AddShape(4.5, 7, rectangle, pageNumber);

long shape2_ID = diagram.AddShape(2.25, 4.5, rectangle, pageNumber);

long shape3_ID = diagram.AddShape(4.5, 4.5, rectangle, pageNumber);

long shape4_ID = diagram.AddShape(6.75, 4.5, rectangle, pageNumber);

// get shapes by ID

Aspose.Diagram.Shape shape1 = page.Shapes.GetShape(shape1_ID);

Aspose.Diagram.Shape shape2 = page.Shapes.GetShape(shape2_ID);

Aspose.Diagram.Shape shape3 = page.Shapes.GetShape(shape3_ID);

Aspose.Diagram.Shape shape4 = page.Shapes.GetShape(shape4_ID);

// add two more connection points

Connection connection1 = new Connection();

connection1.X.Ufe.F = "Width*0.33";
connection1.X.Value = shape1.XForm.Width.Value * 0.33;

connection1.Y.Ufe.F = "Height*0";
connection1.Y.Value = 0;

Connection connection3 = new Connection();

connection3.X.Ufe.F = "Width*0.66";
connection3.X.Value = shape1.XForm.Width.Value *0.66;

connection3.Y.Ufe.F = "Height*0";
connection3.Y.Value = 0;

connection1.IX = shape1.Connections.Add(connection1);

connection3.IX = shape1.Connections.Add(connection3);



// add connector shapes

Aspose.Diagram.Shape connector1 = new Aspose.Diagram.Shape();

Aspose.Diagram.Shape connector2 = new Aspose.Diagram.Shape();

Aspose.Diagram.Shape connector3 = new Aspose.Diagram.Shape();

long connecter1Id = diagram.AddShape(connector1, connectorMaster, 0);

long connecter2Id = diagram.AddShape(connector2, connectorMaster, 0);

long connecter3Id = diagram.AddShape(connector3, connectorMaster, 0);

// connect shapes by index of conneecting points

page.ConnectShapesViaConnectorIndex(shape1.ID, 6, shape2.ID, 3, connecter1Id);

page.ConnectShapesViaConnectorIndex(shape1.ID, 1, shape3.ID, 3, connecter2Id);

// save drawing

diagram.Save(@"C:\temp\Drawing1_out.vsdx", SaveFileFormat.VSDX);
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