private FrameworkElement GetLayerNodeHeader(MapLayer layer)
{
var stackPanel = new StackPanel
{
Orientation = Orientation.Horizontal
};
var checkBox = new CheckBox
{
Content = layer.LayerData.Name,
IsChecked = layer.Visibility == Visibility.Visible
};
checkBox.Checked += (sender, e) => LayerVisible(layer, true);
checkBox.Unchecked += (sender, e) => LayerVisible(layer, false);
var slider = new Slider
{
Minimum = 0,
Maximum = 1,
Width = 40,
Margin = new Thickness(10, 0, 0, 0)
};
slider.SetBinding(
dp: Slider.ValueProperty,
binding: new Binding("Opacity")
{
Source = layer,
Mode = BindingMode.TwoWay
});
stackPanel.Children.Add(checkBox);
stackPanel.Children.Add(slider);
return(stackPanel);
}
public virtual void SetData(VectorLayer layer)
{
LayerData = layer;
LayerStyle = GetLayerStyle(layer);
LayerLableStyle = GetLabelStyle(layer);
Features.Clear();
Overlays.Clear();
Children.Clear();
LabelLayer = new MapLayer();
if (layer.GeoType == VectorLayer.GEOTYPE_POINT)
{
foreach (Feature feature in layer.Features)
{
var pos = feature.GeoData[0];
AddSpot(new Point(pos.X, pos.Y), feature);
AddLable(new Point(pos.X, pos.Y), LayerLableStyle.GetLable(feature));
}
}
else if (layer.GeoType == VectorLayer.GEOTYPE_LINEAR)
{
if (IsRoad())
{
foreach (Feature feature in layer.Features)
{
var polyline = new PointString(feature.GeoData);
AddRoadStroke(polyline.Points.Select(p => new Point(p.X, p.Y)).ToArray(), feature);
}
}
foreach (Feature feature in layer.Features)
{
var poly = new PointString(feature.GeoData);
if (!IsRoad())
{
AddPolyline(poly.Points.Select(p => new Point(p.X, p.Y)).ToArray(), feature);
}
else
{
AddRoadFill(poly.Points.Select(p => new Point(p.X, p.Y)).ToArray(), feature);
}
}
foreach (Feature feature in layer.Features) // mod 20130516 最后统一加标签
{
var poly = new PointString(feature.GeoData);
string text = LayerLableStyle.GetLable(feature);
double linearRepeatInterval = LayerLableStyle.LinearRepeatInterval;
double length = poly.Length();
//double scale = 4; // 这个时候出现主窗口的Scale是不合适的。
List <double> positions = new List <double>(); // mod 20130528 与SVG同步
if (length > 0 && length < 2 * linearRepeatInterval)
{
positions.Add(length / 2);
}
else
{
int index = 1;
while (index * linearRepeatInterval < length)
{
positions.Add(index * linearRepeatInterval);
index++;
}
}
foreach (double position in positions)
{
var tempPt = poly.GetPointAtDist(position);
double rotation = poly.Dir(position).Heading();
double angle = 180 / Math.PI * rotation;
AddLable(new Point(tempPt.X, tempPt.Y), text, angle);
}
}
}
else if (layer.GeoType == VectorLayer.GEOTYPE_REGION)
{
foreach (Feature feature in layer.Features)
{
var poly = new PointString(feature.GeoData);
var center = poly.Centroid();
AddPolygon(poly.Points.Select(p => new Point(p.X, p.Y)).ToArray(), feature);
AddLable(new Point(center.X, center.Y), LayerLableStyle.GetLable(feature));
}
}
}
