Stack Overflow
Stack Overflow

Questions tagged [polyline]

Polyline in computer graphics is a continuous line composed of one or more line segments.

Polyline in computer graphics is a continuous line composed of one or more line segments. You can create a polyline by specifying the endpoints of each segment.

1062 questions
6
votes
1 answer

PolyLines on google maps android for every location change, new polyline or setPoints?

In my app I'm drawing a polyline for every location change while I'm trekking around. This may be for an 8 hour backpacking hike so I may potentially have tens of thousands of points to plot. In my testing, I've noticed that when I'm zoomed in…
Blair Holmes
  • 1,521
  • 2
  • 22
  • 35
6
votes
2 answers

How to convert polyline with weight to polygon in Leaflet?

I need to allow user to draw a route (using polyline) with specified road radius (visually it was done with "weight" parameter). Visually it looks like that: So I'm wondering how can build a polygon around this polyline with some offset? Like…
Ruslan Nigmatulin
  • 483
  • 6
  • 14
6
votes
1 answer

How do you store data from NSMutable Array in Core Data?

The app i'm making draws a Polyline based on the users coordinates from CLLocationManager (these are all kept in an NSMutableArray) When the app closes, the current polyline disappears. How can I store the array of points in CoreData to be retrieved…
Peeter Vedic
  • 101
  • 1
  • 3
  • 8
6
votes
1 answer

(Android) Is it possible to change the shape of the polyline in google maps?

I know we can change the color of the polyline by using "polylineOptions.color(YOUR_COLOR);" bit is it possible to set a shape on it? (I would like the like to have a blue border and be white inside if the route that needs to be completed and if…
rosu alin
  • 5,674
  • 11
  • 69
  • 150
6
votes
1 answer

How do I draw polygon?( in C# WPF project)

Click the points, I want to make from the polygon area on image. myPolygon = new Polygon(); myPolygon.Stroke = Brushes.Black; myPolygon.Fill = Brushes.LightYellow; myPolygon.StrokeThickness = 2; myPolygon.HorizontalAlignment =…
user2853714
  • 71
  • 1
  • 1
  • 3
6
votes
2 answers

How to track a user's location and display the path travelled using Google Maps ios SDK

I'm currently building an ios app and I'm hoping to implement a function where the user's location is displayed on a Google Map view and when they move a polyline show's the path that has been travelled by the user so far. This obviously needs to…
laideybug
  • 167
  • 1
  • 4
  • 8
6
votes
2 answers

Arrow Mark over Polyline in Android Google Route Map

how to show Arrowheads over Polyline in Android Google map v2 I have gone through couple of links , most of them gives link to JS https://google-developers.appspot.com/maps/documentation/javascript/examples/overlay-symbol-arrow but I need in Android…
Ari
  • 1,296
  • 1
  • 18
  • 36
5
votes
1 answer

Animating a polyline's appearance using SVG animate

I am working with SVG in HTML to define specific shapes using the polyline tool. I am looking to animate the appearance of a specific shape into a different shape at the touch of a button and over a few seconds. I have been looking at using the…
howardrocks
  • 343
  • 1
  • 7
  • 17
5
votes
1 answer

Google Maps 3 Redraw Polyline Flickering

I am drawing a Polyline with a fairly large number of lat/lng points (~ 1000). I have two sliders (start and end) that allow the user to adjust the time bounds which then updates the Polyline to show the data between those two times. My update…
Mike Neumegen
  • 2,436
  • 1
  • 24
  • 39
5
votes
1 answer

Offsetting a polyline in one direction

I'm looking for a way to offset an arbitrary curve defined through xy-coordinates in one direction (in R). I can use the {polyclip} package to offset the curve in two directions. library(polyclip) #> polyclip 1.10-0 built from Clipper C++ version…
teunbrand
  • 33,645
  • 4
  • 37
  • 63
5
votes
3 answers

C# to VB.NET Conversion (Google Polyline Algorithm Decoder)

I have some C# code that decodes map paths encoded using Google's polyline algorithm and am trying to convert it to VB.NET. Here's the C# code, which works fully: Collection decodePolyline(string polyline) { if (polyline == null…
amb9800
  • 365
  • 2
  • 5
  • 14
5
votes
0 answers

delete Polyline rendered with react-native(0.45.1), react-native-maps(0.15.3) and mapbox

I need to delete the polyline I've drawn on the component when a user performs a new search. Right now I end up with 2+ routes all drawn on the same map instead of the new search displaying only the new route. I followed this tutorial to render the…
144
  • 51
  • 5
5
votes
2 answers

How to draw UIBezierPath identical to MKPolyline in a UIView

Currently I am tracking my location on an MKMapView. My objective is to draw a bezier path identical to an MKPolyline created from tracked locations. What I have attempted is: Store all location coordinates in a CLLocation array. Iterate over that…
lifewithelliott
  • 1,012
  • 2
  • 16
  • 35
5
votes
2 answers

Can I draw a thumbnail for a polyline?

if a I have a path for a polyline saved as string, From google maps sdk: path.encodedPath() Or I have a series of latlngs points, Can I draw a thumbnail for that path ? I don't want to draw it on mapView, I wonder if I can draw it in any other view…
Wajih
  • 4,227
  • 2
  • 25
  • 40
5
votes
1 answer

Multiple polylines and infowindows with Google Maps V3

I have a map with multiple polylines and would like to open a line-specific-infowindow when clicking the line. So far my code only shows the content of the last iteration. I found two very nice examples of what I want but after hours of trying I am…
Christian Loncle
  • 1,584
  • 3
  • 20
  • 30
1 2 3
…
70 71