Continuing from my previous solved question I'm facing a new problem so I started a new question.
I'm trying to add circle for each CLLocationCoordinates2D in an array var routeObsticle: [CLLocationCoordinate2D] = [] and I have a counter var routeObsticlePosition = 0 that inside a function is used to circle through the array's positions to get a value.
The array gets it's values appended in the function checkAlerts()
func checkAlerts() {
// MARK: checking if any notification is on our route
while trackingCoordinatesArrayPosition != ( (trackingCoordinatesArray.count) - 1) {
let trackingLatitude = trackingCoordinatesArray[trackingCoordinatesArrayPosition].latitude
let trackingLongitude = trackingCoordinatesArray[trackingCoordinatesArrayPosition].longitude
let alertLatitude = alertNotificationArray[alertNotificationArrayPosition].latitude
let alertLongitude = alertNotificationArray[alertNotificationArrayPosition].longitude
let coordinateFrom = CLLocation(latitude: trackingLatitude, longitude: trackingLongitude)
let coordinateTo = CLLocation(latitude: alertLatitude, longitude: alertLongitude)
let coordinatesDistanceInMeters = coordinateFrom.distance(from: coordinateTo)
// if trackingLatitude == alertLatitude && trackingLongitude == alertLongitude {
if coordinatesDistanceInMeters <= 10 {
print( "found problem")
routeObsticle.append(alertNotificationArray[alertNotificationArrayPosition])
trackingCoordinatesArrayPosition = ( trackingCoordinatesArrayPosition + 1)
}
else if alertNotificationArrayPosition < ((alertNotificationArray.count) - 1) {
alertNotificationArrayPosition = alertNotificationArrayPosition + 1
}
else if alertNotificationArrayPosition == (alertNotificationArray.count - 1) {
trackingCoordinatesArrayPosition = ( trackingCoordinatesArrayPosition + 1)
alertNotificationArrayPosition = 0
}
}
}
But I fail to draw a circle for each array's entry.
Here's the function:
func displayObsticles() {
while routeObsticlePosition <= ((routeObsticle.count) - 1) {
let obsticleLatitude = routeObsticle[routeObsticlePosition].latitude
let obsticleLongitude = routeObsticle[routeObsticlePosition].longitude
let title = ""
let circleCoordinates = CLLocationCoordinate2DMake(obsticleLatitude, obsticleLongitude)
let regionRadious = 10.0
// let region = CLCircularRegion(center: CLLocationCoordinate2D(latitude: obsticleLatitude, longitude: obsticleLatitude), radius: regionRadious, identifier: title)
let circle = MKCircle(center: (routeObsticle[routeObsticlePosition]), radius: regionRadious)
mapView.add(circle)
routeObsticlePosition = ((routeObsticlePosition) + 1)
}
if routeObsticlePosition == ((routeObsticle.count) - 1) {
return
}
}
then I have the MKCircleRenderer method :
func mapView(mapView: MKMapView, rendererForOverlay overlay: MKOverlay) -> MKOverlayRenderer{
let circleRenderer = MKCircleRenderer(overlay: overlay)
circleRenderer.strokeColor = UIColor.red
circleRenderer.lineWidth = 1.0
return circleRenderer
}
Here's the console messages:
2018-05-15 15:45:01.056042+0200 fix-it mapView[3541:172723] [VKDefault] Tile 10554.25436.16 (128) in current unloaded state for 0.00 seconds - Raster Overlays Above Labels - Failed to decode (terminal) (0.00 sec)
2018-05-15 15:45:01.056198+0200 fix-it mapView[3541:172723] [VKDefault] Tile 10555.25436.16 (128) in current unloaded state for 0.00 seconds - Raster Overlays Above Labels - Failed to decode (terminal) (0.00 sec)
2018-05-15 15:45:01.056318+0200 fix-it mapView[3541:172723] [VKDefault] Tile 10552.25436.16 (128) in current unloaded state for 0.00 seconds - Raster Overlays Above Labels - Failed to decode (terminal) (0.00 sec)
2018-05-15 15:45:01.056429+0200 fix-it mapView[3541:172723] [VKDefault] Tile 10553.25436.16 (128) in current unloaded state for 0.00 seconds - Raster Overlays Above Labels - Failed to decode (terminal) (0.00 sec)
2018-05-15 15:45:01.056561+0200 fix-it mapView[3541:172723] [VKDefault] Tile 10551.25436.16 (128) in current unloaded state for 0.00 seconds - Raster Overlays Above Labels - Failed to decode (terminal) (0.00 sec)
2018-05-15 15:45:01.056698+0200 fix-it mapView[3541:172723] [VKDefault] Tile 10555.25434.16 (128) in current unloaded state for 0.00 seconds - Raster Overlays Above Labels - Failed to decode (terminal) (0.00 sec)
2018-05-15 15:45:01.056843+0200 fix-it mapView[3541:172723] [VKDefault] Tile 10555.25435.16 (128) in current unloaded state for 0.00 seconds - Raster Overlays Above Labels - Failed to decode (terminal) (0.00 sec)
2018-05-15 15:45:01.056977+0200 fix-it mapView[3541:172723] [VKDefault] Tile 10554.25435.16 (128) in current unloaded state for 0.00 seconds - Raster Overlays Above Labels - Failed to decode (terminal) (0.00 sec)
2018-05-15 15:45:01.057120+0200 fix-it mapView[3541:172723] [VKDefault] Tile 10553.25435.16 (128) in current unloaded state for 0.00 seconds - Raster Overlays Above Labels - Failed to decode (terminal) (0.00 sec)
2018-05-15 15:45:01.057257+0200 fix-it mapView[3541:172723] [VKDefault] Tile 10552.25435.16 (128) in current unloaded state for 0.00 seconds - Raster Overlays Above Labels - Failed to decode (terminal) (0.00 sec)
2018-05-15 15:45:01.057391+0200 fix-it mapView[3541:172723] [VKDefault] Tile 10551.25435.16 (128) in current unloaded state for 0.00 seconds - Raster Overlays Above Labels - Failed to decode (terminal) (0.00 sec)
2018-05-15 15:45:01.057531+0200 fix-it mapView[3541:172723] [VKDefault] Tile 10555.25432.16 (128) in current unloaded state for 0.00 seconds - Raster Overlays Above Labels - Failed to decode (terminal) (0.00 sec)
2018-05-15 15:45:01.057643+0200 fix-it mapView[3541:172723] [VKDefault] Tile 10555.25433.16 (128) in current unloaded state for 0.00 seconds - Raster Overlays Above Labels - Failed to decode (terminal) (0.00 sec)
2018-05-15 15:45:01.057772+0200 fix-it mapView[3541:172723] [VKDefault] Tile 10554.25430.16 (128) in current unloaded state for 0.00 seconds - Raster Overlays Above Labels - Failed to decode (terminal) (0.00 sec)
2018-05-15 15:45:01.057987+0200 fix-it mapView[3541:172723] [VKDefault] Tile 10555.25430.16 (128) in current unloaded state for 0.00 seconds - Raster Overlays Above Labels - Failed to decode (terminal) (0.00 sec)
2018-05-15 15:45:01.058244+0200 fix-it mapView[3541:172723] [VKDefault] Tile 10555.25431.16 (128) in current unloaded state for 0.00 seconds - Raster Overlays Above Labels - Failed to decode (terminal) (0.00 sec)
2018-05-15 15:45:01.058450+0200 fix-it mapView[3541:172723] [VKDefault] Tile 10552.25430.16 (128) in current unloaded state for 0.00 seconds - Raster Overlays Above Labels - Failed to decode (terminal) (0.00 sec)
2018-05-15 15:45:01.058685+0200 fix-it mapView[3541:172723] [VKDefault] Tile 10553.25430.16 (128) in current unloaded state for 0.00 seconds - Raster Overlays Above Labels - Failed to decode (terminal) (0.00 sec)
2018-05-15 15:45:01.058939+0200 fix-it mapView[3541:172723] [VKDefault] Tile 10551.25430.16 (128) in current unloaded state for 0.00 seconds - Raster Overlays Above Labels - Failed to decode (terminal) (0.00 sec)
2018-05-15 15:45:01.059208+0200 fix-it mapView[3541:172723] [VKDefault] Tile 10555.25429.16 (128) in current unloaded state for 0.00 seconds - Raster Overlays Above Labels - Failed to decode (terminal) (0.00 sec)
2018-05-15 15:45:01.059478+0200 fix-it mapView[3541:172723] [VKDefault] Tile 10554.25429.16 (128) in current unloaded state for 0.00 seconds - Raster Overlays Above Labels - Failed to decode (terminal) (0.00 sec)
2018-05-15 15:45:01.059718+0200 fix-it mapView[3541:172723] [VKDefault] Tile 10553.25429.16 (128) in current unloaded state for 0.00 seconds - Raster Overlays Above Labels - Failed to decode (terminal) (0.00 sec)
2018-05-15 15:45:01.059979+0200 fix-it mapView[3541:172723] [VKDefault] Tile 10552.25429.16 (128) in current unloaded state for 0.00 seconds - Raster Overlays Above Labels - Failed to decode (terminal) (0.00 sec)
2018-05-15 15:45:01.060211+0200 fix-it mapView[3541:172723] [VKDefault] Tile 10551.25429.16 (128) in current unloaded state for 0.00 seconds - Raster Overlays Above Labels - Failed to decode (terminal) (0.00 sec)
2018-05-15 15:45:02.424614+0200 fix-it mapView[3541:172723] [VKDefault] Tile 42214.101729.18 (128) in current unloaded state for 0.00 seconds - Raster Overlays Above Labels - Failed to decode (terminal) (0.00 sec)
2018-05-15 15:45:02.424753+0200 fix-it mapView[3541:172723] [VKDefault] Tile 42213.101729.18 (128) in current unloaded state for 0.00 seconds - Raster Overlays Above Labels - Failed to decode (terminal) (0.00 sec)
2018-05-15 15:45:02.424899+0200 fix-it mapView[3541:172723] [VKDefault] Tile 42212.101729.18 (128) in current unloaded state for 0.00 seconds - Raster Overlays Above Labels - Failed to decode (terminal) (0.00 sec)
2018-05-15 15:45:12.513053+0200 fix-it mapView[3541:172723] [VKDefault] Tile 42214.101729.18 (128) in current unloaded state for 10.09 seconds - Raster Overlays Above Labels - Failed to decode (terminal) (10.09 sec)
2018-05-15 15:45:12.513209+0200 fix-it mapView[3541:172723] [VKDefault] Tile 42213.101729.18 (128) in current unloaded state for 10.09 seconds - Raster Overlays Above Labels - Failed to decode (terminal) (10.09 sec)
2018-05-15 15:45:12.513319+0200 fix-it mapView[3541:172723] [VKDefault] Tile 42212.101729.18 (128) in current unloaded state for 10.09 seconds - Raster Overlays Above Labels - Failed to decode (terminal) (10.09 sec)
Can drawing multiple circles be done like this or how should I approach the task? many thanks in advance. I'm starting with overlays and surely I did misunderstand something.
finally found out where was the problem.
I was re-instantiating the (rendererFor:) function, so I just incorporated else if statements to cover the possible renderers to return. Indeed I didn't understand it was possible to do it that way.
So the final function changed to :
func mapView(_ mapView: MKMapView, rendererFor overlay: MKOverlay) -> MKOverlayRenderer {
if overlay is MKCircle {
let renderer = MKCircleRenderer(overlay: overlay)
renderer.fillColor = UIColor.black.withAlphaComponent(0.1)
renderer.strokeColor = UIColor.blue
renderer.lineWidth = 2
return renderer
} else if overlay is MKPolyline {
let renderer = MKPolylineRenderer(overlay: overlay)
renderer.strokeColor = UIColor.orange
renderer.lineWidth = 3
return renderer
} else if overlay is MKPolygon {
let renderer = MKPolygonRenderer(polygon: overlay as! MKPolygon)
renderer.fillColor = UIColor.black.withAlphaComponent(0.5)
renderer.strokeColor = UIColor.orange
renderer.lineWidth = 2
return renderer
}
return MKOverlayRenderer()
}
Hope that this will be a help to others.