polyline

I want to draw a curved line between two markers (something like Uber) but there's no method for doing that. is there any idea? 来源： https://stackoverflow.com/questions/49189242/draw-a-curved-line-by-gmspolyline-google-maps-ios-sdk

I was able to achieve creating a marker (annotation) on the map using the below code in react-native . import React, { Component } from 'react'; import { Platform, StyleSheet, Text, View } from 'react-native'; import MapboxGL from '@mapbox/react-native-mapbox-gl'; import Mapbox from '@mapbox/react-native-mapbox-gl'; const columbusCircleCoordinates = [ -73.98197650909422, 40.768793007758816 ]; Mapbox.setAccessToken('your access key'); export default class App extends Component { renderAnnotations () { return ( <Mapbox.PointAnnotation key='pointAnnotation' id='pointAnnotation' coordinate={[11

I'm struggling with detecting a tap on a GMSPolyline drawn on my Google map, it works just fine with GMSpolygones, but the same approach doesn't seem to work with polyline. My current approach, which works for polygones, is: if (GMSGeometryContainsLocation(coordinate, polygon.path!, false)) { ... } Any suggestions how to detect taps on a polyline? Or just close to it? eshirima According to their API documentation , GMSPolyline inherits from GMSOverlay which means a GMSPolyline has the property tappable . So you'd want something like this let polyLine: GMSPolyline = GMSPolyline(path: newPath)

Very simple. I want to avoid the dragging of the first and last vertices. I've tried using dragstart event, but apparently polyline doesn't listen to that one. I've managed to do something with set_at. I have the last position stored, when set_at is called, I check the index of that vertex, and then set the latLng for that vertex to the old one. This was only possible using setAt function which fires the event again. So a created a ignoreNextEvent flag, so It won't go for an infinite loop. problem is, setAt function os used plenty of times by the maps api, and the solution, although works, is

The title is quite clear, I'm using Leaflet and I need to show only the vertices of a polyline. For exemple see this image : Currently I can only have the black line, I'd like only the red squares. Using markers is not an option for performance issue, my lines can be huge (500 000 vertices) and the use of smoothFactor is a need. Is that possible? If not, does someone knows a plugin that does that, or have a hint on how could I do that by extending the Polyline class? What you could do here is every time the polyline gets rendered, get the segments of it's SVG path, use those points to add SVG

I am loading multiple MKPolylines as overlays onto an MKMapView . I would like to be able to distinguish these some how so change things like color, line width, etc. But, when viewForOverlay: gets called, it sees all my MKPolylines the same, which doesn't allow me to change any of them. - (MKOverlayView *)mapView:(MKMapView *)mapView viewForOverlay:(id <MKOverlay>)overlay { if ([overlay isKindOfClass:[MKPolyline class]]) { MKPolylineView *aView = [[[MKPolylineView alloc] initWithPolyline:(MKPolyline*)overlay] autorelease]; aView.strokeColor = [[UIColor blueColor] colorWithAlphaComponent:0.7];