private void initializePinsLayer()
{
// Just initialize with empty so that it's guaranteed that there are sources initiated
// when the pins collection is still null
var mapLockedPinsSource = new MGLShapeSource(mapLockedPinsSourceKey, new NSObject[]{}, null);
nStyle.AddSource(mapLockedPinsSource);
// Pins with bearings layer - configure elements
var mapLockedPinsLayer = new MGLSymbolStyleLayer(mapLockedPinsKey, mapLockedPinsSource) {
IconImageName = NSExpression.FromKeyPath(pin_image_key),
IconRotation = NSExpression.FromKeyPath(pin_rotation_key),
IconScale = NSExpression.FromKeyPath(pin_size_key),
IconRotationAlignment = NSExpression.FromConstant(NSObject.FromObject("map")), // Finally the map-lock flat = "map"
IconAllowsOverlap = NSExpression.FromConstant(NSObject.FromObject(true)) // Always overlap
};
nStyle.AddLayer(mapLockedPinsLayer);
// Just initialize with empty so that it's guaranteed that there are sources initiated
// when the pins collection is still null
var normalPinsSource = new MGLShapeSource(normalPinsSourceKey, new NSObject[] { }, null);
nStyle.AddSource(normalPinsSource);
// Normal pins layer - configure elements
var normalPinsLayer = new MGLSymbolStyleLayer(normalPinsKey, normalPinsSource) {
IconImageName = NSExpression.FromKeyPath(pin_image_key),
IconScale = NSExpression.FromKeyPath(pin_size_key),
IconOffset = NSExpression.FromKeyPath(pin_offset_key), //https://www.mapbox.com/mapbox-gl-js/style-spec/#layout-symbol-icon-offset
IconAnchor = NSExpression.FromConstant(NSObject.FromObject("bottom")), // https://www.mapbox.com/mapbox-gl-js/style-spec/#layout-symbol-icon-anchor = "bottom" or "center"
IconAllowsOverlap = NSExpression.FromConstant(NSObject.FromObject(true))
};
nStyle.AddLayer(normalPinsLayer);
}
void AddSources(System.Collections.IList sources)
{
if (sources == null || MapView == null || MapView.Style == null)
{
return;
}
foreach (ShapeSource source in sources)
{
if (source.Id != null && source.Shape != null)
{
var shape = ShapeFromAnnotation(source.Shape);
var sourceId = (NSString)("NXCustom_" + source.Id);
var oldSource = MapView.Style?.SourceWithIdentifier(sourceId);
if (oldSource != null && oldSource is MGLShapeSource)
{
(oldSource as MGLShapeSource).Shape = shape;
}
else
{
var mglSource = new MGLShapeSource(sourceId, shape, null);
MapView.Style.AddSource(mglSource);
}
}
}
}
private void initializeRoutesLayer()
{
// Just initialize with empty so that it's guaranteed that there are sources initiated
// when the routes collection is still null
var routeSource = new MGLShapeSource(line_source_key, new NSObject[] { }, null);
nStyle.AddSource(routeSource);
var borderLinesLayer = new MGLLineStyleLayer(border_line_layer_key, routeSource);
borderLinesLayer.LineColor = NSExpression.FromKeyPath(border_line_color_key);
borderLinesLayer.LineWidth = NSExpression.FromKeyPath(border_line_width_key);
borderLinesLayer.LineJoin = NSExpression.FromConstant(NSObject.FromObject("round"));
borderLinesLayer.LineCap = NSExpression.FromConstant(NSObject.FromObject("round"));
nStyle.AddLayer(borderLinesLayer);
var linesLayer = new MGLLineStyleLayer(line_layer_key, routeSource);
linesLayer.LineColor = NSExpression.FromKeyPath(line_color_key);
linesLayer.LineWidth = NSExpression.FromKeyPath(line_width_key);
linesLayer.LineJoin = NSExpression.FromConstant(NSObject.FromObject("round"));
linesLayer.LineCap = NSExpression.FromConstant(NSObject.FromObject("round"));
nStyle.AddLayer(linesLayer);
}
public static MGLSource ToSource(this Source source)
{
MGLShapeSource result = null;
switch (source)
{
case GeoJsonSource geojsonSource:
{
var options = geojsonSource.Options.ToOptions();
if (geojsonSource.Data != null)
{
var shape = geojsonSource.Data.ToShape();
return(new MGLShapeSource(source.Id, shape, options));
}
if (string.IsNullOrWhiteSpace(geojsonSource.Url))
{
return(new MGLComputedShapeSource(geojsonSource.Id, options));
}
var url = geojsonSource.IsLocal
? NSUrl.FromFilename(geojsonSource.Url.Replace("asset://", string.Empty))
: NSUrl.FromString(geojsonSource.Url);
return(new MGLShapeSource(source.Id, url, options));
}
case VectorSource vectorSource:
if (vectorSource.TileSet != null)
{
return(new MGLVectorTileSource(vectorSource.Id, vectorSource.TileSet.Tiles, vectorSource.Options.ToOptions()));
}
return(new MGLVectorTileSource(vectorSource.Id, NSUrl.FromString(vectorSource.Url)));
case RasterSource rasterSource:
if (rasterSource.TileSet != null)
{
var options = new NSMutableDictionary <NSString, NSObject>();
if (rasterSource.TileSize.HasValue)
{
options.Add(MGLTileSourceOptions.TileSize, NSNumber.FromInt32(rasterSource.TileSize.Value));
}
// TODO No TileSet for iOS??
return(new MGLRasterTileSource(rasterSource.Id, rasterSource.TileSet.Tiles, new NSDictionary <NSString, NSObject>(options.Keys, options.Values)));
}
return(rasterSource.TileSize.HasValue
? new MGLRasterTileSource(rasterSource.Id, NSUrl.FromString(rasterSource.ConfigurationURL), rasterSource.TileSize.Value)
: new MGLRasterTileSource(rasterSource.Id, NSUrl.FromString(rasterSource.ConfigurationURL)));
case RasterDemSource rasterDemSource:
if (rasterDemSource.TileSet != null)
{
var options = new NSMutableDictionary <NSString, NSObject>();
if (rasterDemSource.TileSize.HasValue)
{
options.Add(MGLTileSourceOptions.TileSize, NSNumber.FromInt32(rasterDemSource.TileSize.Value));
}
// TODO No TileSet for iOS??
return(new MGLRasterDEMSource(rasterDemSource.Id, rasterDemSource.TileSet.Tiles, new NSDictionary <NSString, NSObject>(options.Keys, options.Values)));
}
return(rasterDemSource.TileSize.HasValue
? new MGLRasterDEMSource(rasterDemSource.Id, NSUrl.FromString(rasterDemSource.Url), rasterDemSource.TileSize.Value)
: new MGLRasterDEMSource(rasterDemSource.Id, NSUrl.FromString(rasterDemSource.Url)));
case MapboxImageSource imageSource:
//TODO Other image source
return(new MGLImageSource(imageSource.Id, imageSource.Coordinates.ToNative(), imageSource.Source.GetImage()));
}
return(result);
}
