Adding a Polyline | ComponentOne Maps for WinForms

Adding a Polyline

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C1Map allows you to connect geographic coordinates of a map with a polyline by using VectorPolyline class. The VectorPolyline class accepts a list of GeoPoints to define the location and nodes of a polyline on a map. The following code can be used to add a polyline on the map surface and customize it:

Visual Basic
C#

Visual Basic

C1Map1.TileLayer.TileSource = New VirtualEarthAerialSource()

Dim vl = New C1.Win.Map.VectorLayer()
C1Map1.Layers.Add(vl)

Dim pline = New C1.Win.Map.VectorPolyline()
vl.Items.Add(pline)

'Provide the stroke style to the polyline
pline.Style.Stroke.Width = 2
pline.Style.Stroke.Style = DashStyle.Dot
pline.Style.Stroke.Color = Color.Beige

'Provide the geometry fro polyline
pline.Geometry = New GeoMultiLineString(New GeoLineString() _
{New GeoLineString(New GeoPoint() {New GeoPoint(20, -20),
New GeoPoint(-20, 20)}), New GeoLineString(New GeoPoint() _
{New GeoPoint(-20, -20), New GeoPoint(20, 20)})})

c1Map1.TileLayer.TileSource = new VirtualEarthAerialSource();

var vl = new C1.Win.Map.VectorLayer();
c1Map1.Layers.Add(vl);

var pline = new C1.Win.Map.VectorPolyline();
vl.Items.Add(pline);

//Provide the stroke style to the polyline
pline.Style.Stroke.Width = 2;
pline.Style.Stroke.Style = DashStyle.Dot;
pline.Style.Stroke.Color = Color.Beige;

//Provide the geometry fro polyline
pline.Geometry = new GeoMultiLineString(
    new GeoLineString[]
    {
        new GeoLineString(new GeoPoint[]
        {
            new GeoPoint(20, -20),
            new GeoPoint(-20, 20),
        }),
        new GeoLineString(new GeoPoint[]
        {
            new GeoPoint(-20, -20),
            new GeoPoint(20, 20),
        })
    });

The following image depicts Map control with four geographical coordinates connected by a polyline:

map with polyline

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