Layers Overview
Layers provide an easy way to present meaningful information to the end user. A RadMap control may have many layers each responsible for a different part of the presentation logic. The layer object represents a collection holding MapVisualElements. The RadMap.Layers property is responsible for exposing the layers allowing easy access and manipulation.
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Figure 1: Map Layers
The example below uses the BingRestMapProvider and adds pin and label elements to a couple of layers defined within the RadMap control.
Setup Layers
private void SetupLayers()
{
MapLayer easternLayer = new MapLayer("Eastern");
this.radMap1.Layers.Add(easternLayer);
MapLayer westernLayer = new MapLayer("Western");
this.radMap1.Layers.Add(westernLayer);
}
Private Sub SetupLayers()
Dim easternLayer As New MapLayer("Eastern")
Me.RadMap1.Layers.Add(easternLayer)
Dim westernLayer As New MapLayer("Western")
Me.RadMap1.Layers.Add(westernLayer)
End Sub
Setup Data
private void SetupData()
{
MapPin element = new MapPin(new PointG(34.0140562, -118.2880489));
element.Text = "Los Angeles";
element.BackColor = Color.Red;
this.radMap1.Layers["Western"].Add(element);
element = new MapPin(new PointG(47.5951518, -122.3316280));
element.Text = "Seattle";
element.BackColor = Color.Red;
this.radMap1.Layers["Western"].Add(element);
element = new MapPin(new PointG(29.4270198, -98.43744520));
element.Text = "San Antonio";
element.BackColor = Color.Red;
this.radMap1.Layers["Western"].Add(element);
element = new MapPin(new PointG(41.8806908, -87.67416460));
element.Text = "Chicago";
element.BackColor = Color.Blue;
this.radMap1.Layers["Eastern"].Add(element);
element = new MapPin(new PointG(40.8296426, -73.92636320));
element.Text = "New York";
element.BackColor = Color.Blue;
this.radMap1.Layers["Eastern"].Add(element);
element = new MapPin(new PointG(42.3665137, -71.06160420));
element.Text = "Boston";
element.BackColor = Color.Blue;
this.radMap1.Layers["Eastern"].Add(element);
MapLabel westernLabel = new MapLabel(new PointG(36.251282d, -111.593335d), "Western")
{
BackColor = Color.FromArgb(122, 255, 0, 0)
};
MapLabel easternLabel = new MapLabel(new PointG(38.790412d, -81.000594d), "Eastern")
{
BackColor = Color.FromArgb(122, 0, 0, 255)
};
this.radMap1.Layers["Western"].Add(westernLabel);
this.radMap1.Layers["Eastern"].Add(easternLabel);
}
Private Sub SetupData()
Dim element As New MapPin(New PointG(34.0140562, -118.2880489))
element.Text = "Los Angeles"
element.BackColor = Color.Red
Me.RadMap1.Layers("Western").Add(element)
element = New MapPin(New PointG(47.5951518, -122.331628))
element.Text = "Seattle"
element.BackColor = Color.Red
Me.RadMap1.Layers("Western").Add(element)
element = New MapPin(New PointG(29.4270198, -98.4374452))
element.Text = "San Antonio"
element.BackColor = Color.Red
Me.RadMap1.Layers("Western").Add(element)
element = New MapPin(New PointG(41.8806908, -87.6741646))
element.Text = "Chicago"
element.BackColor = Color.Blue
Me.RadMap1.Layers("Eastern").Add(element)
element = New MapPin(New PointG(40.8296426, -73.9263632))
element.Text = "New York"
element.BackColor = Color.Blue
Me.RadMap1.Layers("Eastern").Add(element)
element = New MapPin(New PointG(42.3665137, -71.0616042))
element.Text = "Boston"
element.BackColor = Color.Blue
Me.RadMap1.Layers("Eastern").Add(element)
Dim westernLabel As New MapLabel(New PointG(36.251282, -111.593335), "Western") With {
.BackColor = Color.FromArgb(122, 255, 0, 0)
}
Dim easternLabel As New MapLabel(New PointG(38.790412, -81.000594), "Eastern") With {
.BackColor = Color.FromArgb(122, 0, 0, 255)
}
Me.RadMap1.Layers("Western").Add(westernLabel)
Me.RadMap1.Layers("Eastern").Add(easternLabel)
End Sub