ios गूगल एसडीके मानचित्र बिंदीदार पोलीलाइंस

Question

मैं मार्करों के बीच डॉटेड पोलीलाइंस आकर्षित करने के लिए नीचे दी गई विधि कहा जाता है नहीं बना सकते। जब निष्पादन की बात आती है, तो यह दिखाता है कि केवल ठोस रेखाएं खींची जाती हैं। क्या आप कृपया मुझे बताएंगे कि Google मानचित्र पर बिंदीदार रेखाएं कैसे खींचना है?

- (void) createDashedLine:(CLLocationCoordinate2D)thisPoint:(CLLocationCoordinate2D)nextPoint: 
(UIColor *)colour 
{ 
    NSLog(@"next pt latitude %ff" , nextPoint.latitude); 
    NSLog(@"next pt longitude %ff" , nextPoint.longitude); 
    NSLog(@"this pt laatitude %ff" , thisPoint.latitude); 
    NSLog(@"this pt longitude %ff" , thisPoint.longitude); 

    double difLat = nextPoint.latitude - thisPoint.latitude; 
    double difLng = nextPoint.longitude - thisPoint.longitude; 
    double scale = camera.zoom * 2; 
    double divLat = difLat/scale; 
    double divLng = difLng/scale; 
    CLLocationCoordinate2D tmpOrig= thisPoint; 
    GMSMutablePath *singleLinePath = [GMSMutablePath path]; 

    for(int i = 0 ; i < scale ; i ++){ 
     CLLocationCoordinate2D tmpOri = tmpOrig; 
     if(i > 0){ 
      tmpOri = CLLocationCoordinate2DMake(tmpOrig.latitude + (divLat * 0.25f), tmpOrig.longitude + (divLng * 0.25f)); 
     } 
     [singleLinePath addCoordinate:tmpOri]; 
     [singleLinePath addCoordinate: 
     CLLocationCoordinate2DMake(tmpOrig.latitude + (divLat * 1.0f), 
            tmpOrig.longitude + (divLng * 1.0f))]; 
     tmpOri = CLLocationCoordinate2DMake(tmpOrig.latitude + (divLat * 1.0f), tmpOrig.longitude + (divLng * 1.0f)); 
    } 

    GMSPolyline *polyline ; 
    polyline = [GMSPolyline polylineWithPath:singleLinePath]; 
    polyline.geodesic = NO; 
    polyline.strokeWidth = 5.f; 
    polyline.strokeColor = colour; 
    polyline.map = mapView_; 

    //Setup line style and draw 
    _lengths = @[@([singleLinePath lengthOfKind:kGMSLengthGeodesic]/50)]; 
    _polys = @[polyline]; 
    [self setupStyleWithColour:colour]; 
    [self tick]; 
} 

- (void)tick { 
    //Create steps for polyline(dotted polylines) 
    for (GMSPolyline *poly in _polys) { 
     poly.spans = 
     GMSStyleSpans(poly.path, _styles, _lengths, kGMSLengthGeodesic, _pos); 
    } 
    _pos -= _step; 
} 

-(void)setupStyleWithColour:(UIColor *)color{ 

    GMSStrokeStyle *gradColor = [GMSStrokeStyle gradientFromColor:color toColor:color]; 

    _styles = @[gradColor,[GMSStrokeStyle solidColor:[UIColor colorWithWhite:0 alpha:0]],]; 
    _step = 50000; 
} 

- (void)addMarkers 
{ 
    // NSMutableArray *polys = [NSMutableArray array]; 
    if([CarArray count] > 0){ 


     GMSMutablePath *path = [GMSMutablePath path]; 
     GMSMutablePath *currentPath = [GMSMutablePath path]; 
     GMSPolyline *polyline ; 
     GMSPolyline *polylineC ; 
     GMSMarker *marker; 
     for (int i = 0; i < [CarArray count]; i++) { 

      CheckPoints *cp = [CarArray objectAtIndex:i]; 
      CLLocationCoordinate2D position = CLLocationCoordinate2DMake(cp.getLatitude , cp.getLongitude); 

      marker = [GMSMarker markerWithPosition:position]; 
      // GMSMarker *marker = [[GMSMarker alloc] init]; 
      marker.position = position; 
      NSLog(@"%d", cp.getState); 
      NSLog(@"%f", cp.getLatitude); 
      NSLog(@"%f", cp.getLongitude); 
      NSLog(@"%@", cp.getDesp); 
      marker.title = cp.getDesp; 

      marker.zIndex = 1; 
      NSString *tmpLat = [[NSString alloc] initWithFormat:@"%f", position.latitude]; 
      NSString *tmpLong = [[NSString alloc] initWithFormat:@"%f", position.longitude]; 
      marker.snippet = [NSString stringWithFormat:@"%@ %@", tmpLat,tmpLong]; 
      UIColor *color; 
      if (cp.getState ==0) { 
       color = [UIColor greenColor]; 
      } else { 
       color = [UIColor redColor]; 
      } 

      if([CarArray count] > 2){ 
       [path addLatitude:cp.getLatitude longitude:cp.getLongitude]; 
       if(i > [CarArray indexOfObject:CarArray.lastObject] -2){ 
        [currentPath addLatitude:cp.getLatitude longitude:cp.getLongitude]; 
       } 
      }else{ 
       [currentPath addLatitude:cp.getLatitude longitude:cp.getLongitude]; 
      } 
      marker.icon = [GMSMarker markerImageWithColor:color]; 

      marker.map = mapView_; 
      // mapView_.selectedMarker = marker; 
     } 

     if([CarArray count] > 2) { 

      polyline = [GMSPolyline polylineWithPath:currentPath]; 
      polyline.geodesic = YES; 
      polyline.strokeWidth = 5.f; 
      polyline.strokeColor = [UIColor greenColor]; 
      polyline.map = mapView_; 



      _lengths = @[@([currentPath lengthOfKind:kGMSLengthGeodesic]/50)]; 
      _polys = @[polyline]; 

      [self setupStyleWithColour:[UIColor greenColor]]; 
      [self tick]; 


      for(int i = 0 ; i < [currentPath count] -1 ; i++){ 
       CLLocationCoordinate2D thisPoint = [currentPath coordinateAtIndex:i]; 
       CLLocationCoordinate2D nextPoint = [currentPath coordinateAtIndex:i+1]; 


       NSLog(@"next pt s latitude %ff" , nextPoint.latitude); 
       NSLog(@"next pt s longitude %ff" , nextPoint.longitude); 
       NSLog(@"this pt s latitude %ff" , thisPoint.latitude); 
       NSLog(@"this pt s longitude %ff" , thisPoint.longitude); 

       [self drawArrowLines:mapView_ :thisPoint :nextPoint :[UIColor greenColor]:i+1: false]; 
       [self createDashedLine: thisPoint :nextPoint :[UIColor greenColor]]; 
      } 

      GMSMutablePath *path2 = [GMSMutablePath path]; 
      GMSMutablePath *path3 = [GMSMutablePath path]; 
      path2 = path.mutableCopy; 

      [path2 removeLastCoordinate]; 
      path3 = path2; 
      polylineC = [GMSPolyline polylineWithPath:path3]; 
      polylineC.geodesic = YES; 
      polylineC.strokeWidth = 5.f; 
      polylineC.map = mapView_; 



      _lengths = @[@([currentPath lengthOfKind:kGMSLengthGeodesic]/50)]; 
      _polys = @[polylineC]; 

      [self setupStyleWithColour:[UIColor greenColor]]; 
      [self tick]; 


     //  polylineC.strokeColor = [UIColor redColor]; 

      for(int i = 0 ; i < [path count] -1 ; i++){ 
       CLLocationCoordinate2D thisPoint = [path coordinateAtIndex:i]; 
       CLLocationCoordinate2D nextPoint = [path coordinateAtIndex:i+1]; 

       NSLog(@"next pt s latitude %ff" , nextPoint.latitude); 
       NSLog(@"next pt s longitude %ff" , nextPoint.longitude); 
       NSLog(@"this pt s latitude %ff" , thisPoint.latitude); 
       NSLog(@"this pt s longitude %ff" , thisPoint.longitude); 

       [self drawArrowLines:mapView_ :thisPoint :nextPoint :[UIColor redColor]: i+1 : true]; 
       [self createDashedLine: thisPoint :nextPoint :[UIColor redColor]]; 
      } 
     }else{ 
      polyline = [GMSPolyline polylineWithPath:currentPath]; 
      polyline.geodesic = NO; 
      polyline.strokeWidth = 5.f; 
      polyline.strokeColor = [UIColor greenColor]; 
      polyline.map = mapView_; 


      _lengths = @[@([currentPath lengthOfKind:kGMSLengthGeodesic]/50)]; 
      _polys = @[polyline]; 

      [self setupStyleWithColour:[UIColor greenColor]]; 
      [self tick]; 

      for(int i = 0 ; i < [currentPath count] -1 ; i++){ 
       CLLocationCoordinate2D thisPoint = [currentPath coordinateAtIndex:i]; 
       CLLocationCoordinate2D nextPoint = [currentPath coordinateAtIndex:i+1]; 


       NSLog(@"next pt s latitude %ff" , nextPoint.latitude); 
       NSLog(@"next pt s longitude %ff" , nextPoint.longitude); 
       NSLog(@"this pt s latitude %ff" , thisPoint.latitude); 
       NSLog(@"this pt s longitude %ff" , thisPoint.longitude); 

       [self drawArrowLines:mapView_ :thisPoint :nextPoint :[UIColor greenColor] : i+1 : false]; 
       [self createDashedLine: thisPoint :nextPoint :[UIColor greenColor]]; 
      } 
     } 
    } 
} 

Answer 1

हाँ, यह करता है, धराशायी लाइन के लिए आप कुछ चीजें विन्यस्त करने की जरूरत। के रूप में आप क्या कर रहे हैं

- (void) createDashedLine:(CLLocationCoordinate2D)thisPoint:(CLLocationCoordinate2D)nextPoint: 
(UIColor *)colour 
{ 

    double difLat = nextPoint.latitude - thisPoint.latitude; 
    double difLng = nextPoint.longitude - thisPoint.longitude; 
    double scale = camera.zoom * 2; 
    double divLat = difLat/scale; 
    double divLng = difLng/scale; 
    CLLocationCoordinate2D tmpOrig= thisPoint; 

    GMSMutablePath *singleLinePath = [GMSMutablePath path]; 

    for(int i = 0 ; i < scale ; i ++){ 
     CLLocationCoordinate2D tmpOri = tmpOrig; 
     if(i > 0){ 
      tmpOri = CLLocationCoordinate2DMake(tmpOrig.latitude + (divLat * 0.25f), 
               tmpOrig.longitude + (divLng * 0.25f)); 
     } 
     [singleLinePath addCoordinate:tmpOri]; 
     [singleLinePath addCoordinate: 
     CLLocationCoordinate2DMake(tmpOrig.latitude + (divLat * 1.0f), 
             tmpOrig.longitude + (divLng * 1.0f))]; 


     tmpOri = CLLocationCoordinate2DMake(tmpOrig.latitude + (divLat * 1.0f), 
              tmpOrig.longitude + (divLng * 1.0f)); 

    } 

    GMSPolyline *polyline ; 
    polyline = [GMSPolyline polylineWithPath:singleLinePath]; 
    polyline.geodesic = NO; 
    polyline.strokeWidth = 5.f; 
    polyline.strokeColor = colour; 
    polyline.map = mapView_; 

    //Setup line style and draw 
    _lengths = @[@([singleLinePath lengthOfKind:kGMSLengthGeodesic]/100)]; 
    _polys = @[polyline]; 
    [self setupStyleWithColour:colour]; 
    [self tick]; 
} 

- (void)tick { 
    //Create steps for polyline(dotted polylines) 
    for (GMSPolyline *poly in _polys) { 
     poly.spans = 
     GMSStyleSpans(poly.path, _styles, _lengths, kGMSLengthGeodesic, _pos); 
    } 
    _pos -= _step; 
} 

-(void)setupStyleWithColour:(UIColor *)color{ 

    GMSStrokeStyle *gradColor = [GMSStrokeStyle gradientFromColor:color toColor:color]; 

    _styles = @[ 
       gradColor, 
       [GMSStrokeStyle solidColor:[UIColor colorWithWhite:0 alpha:0]], 
       ]; 
    _step = 50000; 
} 

आशा है कि यह मदद करता है

सबसे पहले, कुछ चर

NSArray *_styles; 
NSArray *_lengths; 
NSArray *_polys; 
double _pos, _step; 

समारोह में परिभाषित परिभाषित for..loop नहीं अंदर बाहर। चीयर्स।

Answer 2

गूगल मैप्स में एक चित्तीदार लाइन का निर्माण इस के रूप में सरल है। यह एक हरे और पारदर्शी वैकल्पिक पैटर्न के साथ एक पॉलीलाइन परिभाषित करता है।

GMSMutablePath *path = [GMSMutablePath path]; 

for (...) { 
    // add coordinate to your path 
    [path addCoordinate:CLLocationCoordinate2DMake(latitude, longitude)]; 
} 

GMSPolyline *polyline = [GMSPolyline polylineWithPath:path]; 
polyline.map = self.mapView; 
polyline.strokeWidth = 3.0; 

NSArray *styles = @[[GMSStrokeStyle solidColor:[UIColor greenColor]], 
        [GMSStrokeStyle solidColor:[UIColor clearColor]]]; 

NSArray *lengths = @[@25, @20]; 

polyline.spans = GMSStyleSpans(polyline.path, styles, lengths, kGMSLengthRhumb); 

आप एक बिंदीदार रेखा चाहते हैं तो आप के लिए

NSArray *lengths = @[@10, @10]; 

Answer 3

प्रत्येक व्यक्ति जो रेखा खंड लंबाई की जरूरत मानचित्र ज़ूम स्तर के स्वतंत्र होने के लिए समायोजित कर सकते हैं, यहां तेज में अपने समाधान है। मैं this answer में के रूप में पॉलीलाइन उसी तरह बनाते हैं, तो सही है कि के बाद और func mapView(mapView: GMSMapView, didChangeCameraPosition position: GMSCameraPosition) में मैं इस विधि कॉल:

func updateLine() { 
    let styles = [ 
     GMSStrokeStyle.solidColor(UIColor.blackColor()), 
     GMSStrokeStyle.solidColor(UIColor.clearColor()) 
    ] 
    let scale = 1.0/mapView.projection.pointsForMeters(1, atCoordinate: mapView.camera.target) 
    line.spans = GMSStyleSpans(line.path!, styles, [15.0 * scale, 10.0 * scale], kGMSLengthRhumb) 
} 

15.0 और 10.0 क्षेत्रों अंक में समान नहीं हैं।

Answer 4

यहाँ स्विफ्ट 3.0 अनुवाद

//Returns a GMSPath parsed from gpx file 
     path = GpxProcessor(fileNames: "test.gpx").getPolygons() 
     redPolyline = GMSPolyline(path: path) 
     redPolyline.geodesic = true 

     redPolyline.map = mapView 

     let styles = [GMSStrokeStyle.solidColor(.clear), 
         GMSStrokeStyle.solidColor(.red)] 
     let lengths: [NSNumber] = [10, 10] 

     redPolyline.spans = GMSStyleSpans(redPolyline.path!, styles, lengths,GMSLengthKind.rhumb)