Aspose.Slides FOSS
.NET
Sådan forbinder du former med forbindelseslinjer i .NET

Sådan forbinder du former med forbindelseslinjer i .NET

Forbindelser i Aspose.Slides FOSS er linjefigurer, der fastgøres til connection sites på andre figurer. Når du flytter en forbundet figur, flytter connector‑endepunktet sig med den. Den mest almindelige connector‑type er BentConnector3, som navigerer omkring forhindringer med en enkelt albuebøjning.

Forudsætninger 

dotnet add package Aspose.Slides.Foss

Forbindelsessted Indekser

Hver form har fire nummererede tilslutningssteder:

IndeksPosition
0Øverst i midten
1Venstre i midten
2Nederst i midten
3Højre i midten

Forbind to former 

using Aspose.Slides.Foss;
using Aspose.Slides.Foss.Export;

using var prs = new Presentation();
var slide = prs.Slides[0];

// Add two rectangles
var box1 = slide.Shapes.AddAutoShape(ShapeType.Rectangle, 50, 200, 200, 100);
var box2 = slide.Shapes.AddAutoShape(ShapeType.Rectangle, 450, 200, 200, 100);

box1.AddTextFrame("Start");
box2.AddTextFrame("End");

// Add a bent connector (initial bounds are overwritten by the connection)
var conn = slide.Shapes.AddConnector(ShapeType.BentConnector3, 0, 0, 10, 10);

// Connect right side of box1 (site 3) to left side of box2 (site 1)
conn.StartShapeConnectedTo = box1;
conn.StartShapeConnectionSiteIndex = 3;
conn.EndShapeConnectedTo = box2;
conn.EndShapeConnectionSiteIndex = 1;

prs.Save("connected.pptx", SaveFormat.Pptx);

Pladsholdergrænserne (0, 0, 10, 10), der sendes til AddConnector, ignoreres, når forbindelsesendepunkterne er indstillet; PowerPoint omdirigerer forbindelseslinjen til de tilknyttede former.

Connector-typer 

// Straight line
ShapeType.StraightConnector1

// Single elbow (L-shape)
ShapeType.BentConnector2

// Double elbow (Z-shape): most common
ShapeType.BentConnector3

// Curved connector
ShapeType.CurvedConnector3

Stil på forbindelseslinjen 

using Aspose.Slides.Foss;
using Aspose.Slides.Foss.Drawing;
using Aspose.Slides.Foss.Export;

using var prs = new Presentation();
var slide = prs.Slides[0];

var box1 = slide.Shapes.AddAutoShape(ShapeType.Rectangle, 50, 150, 180, 80);
var box2 = slide.Shapes.AddAutoShape(ShapeType.Rectangle, 500, 300, 180, 80);

var conn = slide.Shapes.AddConnector(ShapeType.BentConnector3, 0, 0, 10, 10);
conn.StartShapeConnectedTo = box1;
conn.StartShapeConnectionSiteIndex = 2;   // bottom of box1
conn.EndShapeConnectedTo = box2;
conn.EndShapeConnectionSiteIndex = 0;     // top of box2

// Style: dashed blue line, 2 pt width
var lf = conn.LineFormat;
lf.Width = 2.0;
lf.FillFormat.SolidFillColor.Color = Color.Blue;
lf.DashStyle = LineDashStyle.Dash;

prs.Save("styled-connector.pptx", SaveFormat.Pptx);

Flowchart med flere forbindelser 

using Aspose.Slides.Foss;
using Aspose.Slides.Foss.Export;

using var prs = new Presentation();
var slide = prs.Slides[0];

// Three-step flowchart
var step1 = slide.Shapes.AddAutoShape(ShapeType.Rectangle, 350, 50, 200, 70);
var step2 = slide.Shapes.AddAutoShape(ShapeType.Rectangle, 350, 220, 200, 70);
var step3 = slide.Shapes.AddAutoShape(ShapeType.Rectangle, 350, 390, 200, 70);

step1.AddTextFrame("Step 1");
step2.AddTextFrame("Step 2");
step3.AddTextFrame("Step 3");

void ConnectVertical(IShapeCollection shapes, IShape topShape, IShape bottomShape)
{
    var c = shapes.AddConnector(ShapeType.BentConnector3, 0, 0, 10, 10);
    c.StartShapeConnectedTo = topShape;
    c.StartShapeConnectionSiteIndex = 2;   // bottom
    c.EndShapeConnectedTo = bottomShape;
    c.EndShapeConnectionSiteIndex = 0;     // top
}

ConnectVertical(slide.Shapes, step1, step2);
ConnectVertical(slide.Shapes, step2, step3);

prs.Save("flowchart.pptx", SaveFormat.Pptx);

Læs Connector‑egenskaber 

using Aspose.Slides.Foss;

using var prs = new Presentation("connected.pptx");
foreach (var shape in prs.Slides[0].Shapes)
{
    if (shape is Connector connector)
    {
        var start = connector.StartShapeConnectedTo;
        var end = connector.EndShapeConnectedTo;
        Console.WriteLine($"Connector: {start?.Name ?? "?"} -> {end?.Name ?? "?"}");
    }
}

Se også

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