void AddLayers(System.Collections.IList layers)
{
if (layers == null)
{
return;
}
foreach (Layer layer in layers)
{
if (string.IsNullOrEmpty(layer.Id))
{
continue;
}
NSString id = (NSString)("NXCustom_" + layer.Id);
var oldLayer = MapView.Style.LayerWithIdentifier(id);
if (oldLayer != null)
{
MapView.Style.RemoveLayer(oldLayer);
}
if (layer is CircleLayer)
{
var circleLayer = layer as CircleLayer;
if (string.IsNullOrEmpty(circleLayer.SourceId))
{
continue;
}
var sourceId = (NSString)("NXCustom_" + circleLayer.SourceId);
var source = MapView.Style.SourceWithIdentifier(sourceId);
if (source == null)
{
continue;
}
var newLayer = new MGLCircleStyleLayer(id, source);
newLayer.CircleColor = MGLStyleValue.ValueWithRawValue(circleLayer.CircleColor.ToUIColor());
newLayer.CircleOpacity = MGLStyleValue.ValueWithRawValue(NSNumber.FromDouble(circleLayer.CircleOpacity));
newLayer.CircleRadius = MGLStyleValue.ValueWithRawValue(NSNumber.FromDouble(circleLayer.CircleRadius));
MapView.Style.AddLayer(newLayer);
}
else if (layer is LineLayer)
{
var lineLayer = layer as LineLayer;
if (string.IsNullOrEmpty(lineLayer.SourceId))
{
continue;
}
var sourceId = (NSString)("NXCustom_" + lineLayer.SourceId);
var source = MapView.Style.SourceWithIdentifier(sourceId);
if (source == null)
{
continue;
}
var newLayer = new MGLLineStyleLayer(id, source);
newLayer.LineWidth = MGLStyleValue.ValueWithRawValue(NSNumber.FromDouble(lineLayer.LineWidth));
newLayer.LineColor = MGLStyleValue.ValueWithRawValue(lineLayer.LineColor.ToUIColor());
//TODO lineCap
MapView.Style.AddLayer(newLayer);
}
}
}
void AddLayer(MGLStyle style)
{
var source = new MGLVectorSource(identifier: "contours", configurationURL: new NSUrl("mapbox://mapbox.mapbox-terrain-v2"));
var layer = new MGLLineStyleLayer(identifier: "contours", source: source);
layer.SourceLayerIdentifier = "contour";
layer.LineJoin = MGLStyleValue.ValueWithRawValue(NSValue.FromObject(MGLLineJoin.Round));
layer.LineCap = MGLStyleValue.ValueWithRawValue(NSValue.FromObject(MGLLineCap.Round));
layer.LineColor = MGLStyleValue.ValueWithRawValue(UIColor.Brown);
layer.LineWidth = MGLStyleValue.ValueWithRawValue(NSValue.FromObject(1.0));
style.AddSource(source);
style.AddLayer(layer);
contoursLayer = layer;
}
private MGLVectorStyleLayer GetStyleLayer(StyleLayer styleLayer, NSString id)
{
if (string.IsNullOrEmpty(styleLayer.SourceId))
{
return(null);
}
var sourceId = styleLayer.SourceId.ToCustomId();
var source = MapView.Style.SourceWithIdentifier(sourceId);
if (source == null)
{
return(null);
}
if (styleLayer is CircleLayer circleLayer)
{
var newLayer = new MGLCircleStyleLayer(id, source)
{
CircleColor = MGLStyleValue.ValueWithRawValue(circleLayer.CircleColor.ToUIColor()),
CircleOpacity = MGLStyleValue.ValueWithRawValue(NSNumber.FromDouble(circleLayer.CircleOpacity)),
CircleRadius = MGLStyleValue.ValueWithRawValue(NSNumber.FromDouble(circleLayer.CircleRadius))
};
if (circleLayer.StrokeColor is Color strokeColor)
{
newLayer.CircleStrokeColor = MGLStyleValue.ValueWithRawValue(strokeColor.ToUIColor());
newLayer.CircleStrokeOpacity = MGLStyleValue.ValueWithRawValue(NSNumber.FromDouble(circleLayer.StrokeOpacity));
newLayer.CircleStrokeWidth = MGLStyleValue.ValueWithRawValue(NSNumber.FromDouble(circleLayer.StrokeWidth));
}
return(newLayer);
}
if (styleLayer is LineLayer lineLayer)
{
var newLayer = new MGLLineStyleLayer(id, source)
{
LineWidth = MGLStyleValue.ValueWithRawValue(NSNumber.FromDouble(lineLayer.LineWidth)),
LineColor = MGLStyleValue.ValueWithRawValue(lineLayer.LineColor.ToUIColor())
};
if (lineLayer.Dashes != null && lineLayer.Dashes.Length != 0)
{
var arr = new NSMutableArray <NSNumber>();
foreach (double dash in lineLayer.Dashes)
{
arr.Add(NSNumber.FromDouble(dash));
}
newLayer.LineDashPattern = MGLStyleValue.ValueWithRawValue(arr);
}
//TODO lineCap
return(newLayer);
}
if (styleLayer is FillLayer fl)
{
var newLayer = new MGLFillStyleLayer(id, source)
{
FillColor = MGLStyleValue.ValueWithRawValue(fl.FillColor.ToUIColor()),
FillOpacity = MGLStyleValue.ValueWithRawValue(NSNumber.FromDouble(fl.FillOpacity))
};
return(newLayer);
}
if (styleLayer is SymbolLayer sl)
{
var newLayer = new MGLSymbolStyleLayer(id, source)
{
IconImageName = MGLConstantStyleValue.ValueWithRawValue((NSString)sl.IconImageName),
IconOpacity = MGLStyleValue.ValueWithRawValue(NSNumber.FromDouble(sl.IconOpacity))
};
return(newLayer);
}
return(null);
}