Connectors

Darbs ar savienotājiem — Aspose.Slides FOSS for .NET

Savienotāji ir formas, kas vizuāli savieno divas citas formas ar līniju. Aspose.Slides FOSS priekš .NET atbalsta saliektus, taisnus un izliekotus savienotājus. Savienojuma punkti uz formas tiek identificēti ar veselu skaitli savienojuma vietas indeksi.

Savienojuma vietas indeksi

Katra forma piedāvā četrus standarta savienojuma vietas:

Indekss	Sāns
`0`	Augšējais
`1`	Kreisais
`2`	Apakšējais
`3`	Labais

Saliektā savienotāja pievienošana starp divām formām

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

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

// Create two shapes to connect
var box1 = slide.Shapes.AddAutoShape(ShapeType.Rectangle, 50, 150, 150, 60);
box1.AddTextFrame("Start");

var box2 = slide.Shapes.AddAutoShape(ShapeType.Rectangle, 400, 150, 150, 60);
box2.AddTextFrame("End");

// Add a bent connector (position/size are ignored once connected)
var conn = slide.Shapes.AddConnector(ShapeType.BentConnector3, 0, 0, 10, 10);

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

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

Savienotāja formas veidi

ShapeType	Apraksts
`ShapeType.BentConnector3`	Divas 90‑grādu saliekumi (visbiežāk izmantoti plūsmas diagrammu veidā)
`ShapeType.BentConnector2`	Viens 90‑grādu salieks
`ShapeType.BentConnector4`	Trīs 90‑grādu saliekumi
`ShapeType.StraightConnector1`	Tieša taisna līnija
`ShapeType.CurvedConnector2`	Viens gluds izlieciens
`ShapeType.CurvedConnector3`	Dubults saliekuma izlieciens

Savienojums no augšas uz leju

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

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

var top = slide.Shapes.AddAutoShape(ShapeType.Rectangle, 250, 80, 200, 60);
top.AddTextFrame("Decision");

var bottom = slide.Shapes.AddAutoShape(ShapeType.Rectangle, 250, 300, 200, 60);
bottom.AddTextFrame("Action");

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

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

Plūsmas diagramma ar vairākiem savienotājiem

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

static IAutoShape AddBox(ISlide slide, string text, float x, float y,
    float w = 160, float h = 50)
{
    var s = slide.Shapes.AddAutoShape(ShapeType.Rectangle, x, y, w, h);
    s.AddTextFrame(text);
    return s;
}

static IConnector Connect(ISlide slide, IShape s1, int site1, IShape s2, int site2)
{
    var conn = slide.Shapes.AddConnector(ShapeType.BentConnector3, 0, 0, 10, 10);
    conn.StartShapeConnectedTo = s1;
    conn.StartShapeConnectionSiteIndex = site1;
    conn.EndShapeConnectedTo = s2;
    conn.EndShapeConnectionSiteIndex = site2;
    return conn;
}

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

var start = AddBox(slide, "Start", 260, 60);
var process = AddBox(slide, "Process Data", 260, 180);
var end = AddBox(slide, "End", 260, 300);

Connect(slide, start, 2, process, 0);    // start -> process (bottom to top)
Connect(slide, process, 2, end, 0);      // process -> end (bottom to top)

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

Savienotāja formatēšana

Savienotāji atbalsta to pašu LineFormat īpašības kā citām formām:

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, 150, 60);
var box2 = slide.Shapes.AddAutoShape(ShapeType.Rectangle, 400, 150, 150, 60);

var conn = slide.Shapes.AddConnector(ShapeType.BentConnector3, 0, 0, 10, 10);
conn.StartShapeConnectedTo = box1;
conn.StartShapeConnectionSiteIndex = 3;
conn.EndShapeConnectedTo = box2;
conn.EndShapeConnectionSiteIndex = 1;

// Style the connector line
conn.LineFormat.Width = 2.5;
conn.LineFormat.DashStyle = LineDashStyle.Dash;
conn.LineFormat.FillFormat.SolidFillColor.Color = Color.DarkBlue;

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