Drawing a circle

Create a KNMapCircle (KO) object and register it with KNMapView to add a circle to the map.

Set the outline and fill colors of the circle, the line type, and other properties in the KNMapCircle (KO) class.

-(void)addCircle01 {
  IntPoint mapPos = [[KNSDK sharedInstance] convertWGS84ToKATECWithLongitude:127.11019081347423  latitude:37.3941851228957];
   
  KNMapCircle *circle = [KNMapCircle circleWithCenter:FloatPointMake(mapPos.x, mapPos.y) radius:100.0f];
  circle.strokeColor = [UIColor redColor];
  circle.fillColor = [UIColor blueColor];
  circle.strokeWidth = STROKE_WIDTH;
  circle.strokeDashType = KNLineDashType_Solid;
  circle.isVisible = YES;
  circle.priority = PRIORITY;
  circle.tag = CIRCLE_01;
  [self->mapView addCircle:circle];
}

Removing a circle

Use the removeCircle function to remove a circle you have added.

-(void)removeCircle01 {
  NSArray* circles = [self getCirclesWithTag:CIRCLE_01];
  for (KNMapCircle *circle in circles) {
      [self->mapView removeCircle:circle];
  }
}

Drawing a line

Create a KNMapPolyline (KO) object and register it with KNMapView to add a line to the map.

Set the line color, the line type, and other properties in the KNMapPolyline (KO) class.

-(void)addLine01 {
  ObjectLoader *objectLoader = [[ObjectLoader alloc] initWithFile:[[NSBundle mainBundle] pathForResource:@"testcase2.csv" ofType:nil]];
   
  KNMapPolyline *mapPolyline = [KNMapPolyline polylineWithPoints:objectLoader.position countPoints:objectLoader.positionCnt];
  mapPolyline.lineColor = [UIColor redColor];
  mapPolyline.lineDashType = KNLineDashType_Solid;
  mapPolyline.lineWidth = STROKE_WIDTH;
  mapPolyline.isVisible = YES;
  mapPolyline.priority = PRIORITY;
  mapPolyline.tag = POLYLINE_01;
  [self->mapView addPolyline:mapPolyline];
}

Removing a line

Use the removePolyline function to remove a line you have added.

-(void)removeLine01 {
  NSArray* lines = [self getPolylinesWithTag:POLYLINE_01];
  for (KNMapPolyline *line in lines) {
      [self->mapView removePolyline:line];
  }
}

Drawing a polygon

Create a KNMapPolygon (KO) object and register it with KNMapView to add a polygon to the map.

Set the outline and fill colors of the polygon, the line type, and other properties in the KNMapPolygon (KO) class.

-(void)addPolygon01 {
  ObjectLoader *objectLoader = [[ObjectLoader alloc] initWithFile:[[NSBundle mainBundle] pathForResource:@"testcase5.csv" ofType:nil]];
   
  KNMapPolygon* polygon = [[KNMapPolygon alloc] polygonWithPoints:objectLoader.position countPoints:objectLoader.positionCnt];
  polygon.fillColor = [UIColor redColor];
  polygon.strokeColor = [UIColor greenColor];
  polygon.strokeWidth = STROKE_WIDTH;
  polygon.strokeDashType = KNLineDashType_Solid;
  polygon.isVisible = YES;
  polygon.priority = PRIORITY;
  polygon.tag = POLYGON_01;
   
  if(objectLoader.holeCnt > 0)
  {
      [polygon addHoleWithPoints:objectLoader.holePosition countPoints:objectLoader.holeCnt];
  }
  [self->mapView addPolygon:polygon];

Removing a polygon

Use the removePolygon function to remove a polygon you have added.

-(void)removePolygon01 {
  NSArray* polygons = [self getPolygonsWithTag:POLYGON_01];
  for (KNMapPolygon *polygon in polygons) {
      [self->mapView removePolygon:polygon];
  }
}