Bezier Segments interaction in Blazor Diagram Component

12 Nov 20244 minutes to read

How to interact with the bezier segments efficiently

When interacting with multiple bezier segments, maintain their control points at the same distance and angle by using the BezierConnectorSettings.Smoothness property of the Connector class.

BezierSmoothness value	Description	Output
SymmetricDistance	Both control points of adjacent segments will be at the same distance when one of them is editing.
SymmetricAngle	Both control points of adjacent segments will be at the same angle when one of them is editing.
Both	Both control points of adjacent segments will be at the same angle and same distance when one of them is editing.
None	Segment’s control points interact independently from each other.

How to show or hide the bezier segment’s control points

By using the BezierConnectorSettings.ControlPointsVisibility property of the Connector class, you can enable or disable the visibility of the bezier segment’s control points.

ControlPointsVisibility value	Description	Output
None	Hides all control points of the bezier connector.
Source	Shows control points of the source segment and hides all other control points in a bezier connector.
Target	Shows control points of the target segment and hides all other control points in a bezier connector.
Intermediate	Shows control points of the intermediate segments and hides all other control points in a bezier connector.
All	Shows all the control points of the bezier connector, including the source, target, and intermediate segments’ control points.

@using Syncfusion.Blazor.Diagram
<SfDiagramComponent Width="1000px" Height="500px" Connectors="@connectors"></SfDiagramComponent>
@code {
    //Define the diagram's connector collection.
    DiagramObjectCollection<Connector> connectors = new DiagramObjectCollection<Connector>();
    protected override void OnInitialized()
    {
        Connector connector1 = new Connector()
        {
            ID = "connector1",
            SourcePoint = new DiagramPoint() { X = 700, Y = 200 },
            TargetPoint = new DiagramPoint() { X = 1000, Y = 400 },
            Segments = new DiagramObjectCollection<ConnectorSegment>()
            {
                new BezierSegment(){Type = ConnectorSegmentType.Bezier, Point = new DiagramPoint(){X = 750, Y = 250}},
                new BezierSegment(){Type = ConnectorSegmentType.Bezier, Point = new DiagramPoint(){X = 900, Y = 350}}
            },
            Type = ConnectorSegmentType.Bezier,
            BezierConnectorSettings = new BezierConnectorSettings() 
            {
                //Define the visibility of the control points. 
                ControlPointsVisibility = ControlPointsVisibility.Intermediate 
            },
        };
        connectors.Add(connector1);
    }
}

You can download a complete working sample from GitHub.