Latest 2.0.0
License MIT
Platforms ios 9.0

Alt text

JDSwiftMap is an IOS Native MapKit Library.

You can easily make a highly customized HeatMap.

Alt text
Alt text
Alt text
Alt text

Alt text


  • Cocoapods
    pod 'JDSWiftHeatMap'


JDSwiftHeatMap is based on IOS native MKMapView,

so you must familiar with.


  • Give a frame.
  • Follow JDHeatMapDelegate.
  • Choose a MapType Below
  map = JDRealHeatMap(frame: self.view.frame, delegate: self, maptype: .FlatDistinct)

With ColorSetting

  map = JDSwiftHeatMap(frame: mapsView.frame, delegate: self, maptype: .FlatDistinct, BasicColors: [UIColor.yellow,], devideLevel: 2)

BasicColors is element color array.

Devide Level = How Many Middle Colors between Basic Colors.

Delegate – Most Important

There are two delegate you need to pay close.

  1. MKMapViewDelegate – (Optional)

    This is the delegate you familiar,( AnnoationView For.., Render For…) You sure can use this delegate in old way, or not to follow this delegate.

    But if you do, you may need to follow two essential function.

    extension ViewController:MKMapViewDelegate
        func mapView(_ mapView: MKMapView, rendererFor overlay: MKOverlay) -> MKOverlayRenderer
            if let heatoverlay = map?.heatmapView(mapView, rendererFor: overlay)
              return heatoverlay
                var yourownRender = yourownRenderClass()
                return yourownRender
        func mapViewWillStartRenderingMap(_ mapView: MKMapView)
    map.delegate = self
  2. JDHeatMapDelegate

    When we talk to Heat Map, the most important thing is "Data" ! You should provide the data you want to display in this delegate.

    public protocol JDHeatMapDelegate {
    func heatmap(HeatPointCount heatmap:JDRealHeatMap) -> Int
    func heatmap(HeatLevelFor index:Int) -> Int
    @Optional func heatmap(RadiusInKMFor index:Int) -> Double
    func heatmap(CoordinateFor index:Int) -> CLLocationCoordinate2D

    The default radius in km is 100KM.


More data will cause large memory using, should be notice.


  1. public func setType(type:JDMapType)

    change the display type, it will refresh automatically.

  2. public func refresh()

    Call this function when data changed.

  3. public var showindicator:Bool

    Set the loading indicator showing or not.

Latest podspec

    "name": "JDSwiftHeatMap",
    "version": "2.0.0",
    "summary": "You can easily make a highly customized HeatMap",
    "description": "JDSwiftMap is an IOS Native MapKit Library.nYou can easily make a highly customized HeatMap.",
    "homepage": "",
    "license": {
        "type": "MIT",
        "file": "LICENSE"
    "authors": {
        "JamesDouble": "[email protected]"
    "source": {
        "git": "",
        "tag": "2.0.0"
    "platforms": {
        "ios": "9.0"
    "source_files": "JDRealHeatMap/JDSwiftHeatMap/*",
    "pushed_with_swift_version": "3.1"

Pin It on Pinterest

Share This