Question

在我自定义的Google地图中，我使用此网址在两个地点（比如Pune到Mumbai）之间绘制路线

https://maps.googleapis.com/maps/api/directions/json?origin=Pune&destination=Mumbai&sensor=false&mode=driving&alternatives=false

解析此响应我获得源和目标之间的点数并将其存储在ArrayList

ArrayList<LocationModel> listAllPoints = getPoints();

此ArrayList包含大约2600个点。

我的问题是，如何将此路线划分为10个相等的段，即包括源和目的地在内的总共11个点。喜欢这个

| A | B | C | D | E | F | G | H |我| J |

其中| =每个点，Character = segment

A和B之间的距离，B和C，C和D应相等。

我应该可以通过在11个部分中分割listAllPoints来做到这一点，但问题是，listAllPoints内的点不是均匀分散的。

非常感谢任何帮助。

Answer 1

参考这个简单的代码。

获取文档

            String url = "http://maps.googleapis.com/maps/api/directions/xml?"
        + "origin=" + start.latitude + "," + start.longitude 
        + "&destination=" + end.latitude + "," + end.longitude
        + "&sensor=false&units=metric&mode=driving";


    HttpClient httpClient = new DefaultHttpClient();
    HttpContext localContext = new BasicHttpContext();
    HttpPost httpPost = new HttpPost(url);
    HttpResponse response = httpClient.execute(httpPost, localContext);
    InputStream in = response.getEntity().getContent();
    DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
    Document    document = builder.parse(in);

画线：

           ArrayList<LatLng> directionPoint = v2GetRouteDirection
                    .getDirection(document);
            PolylineOptions rectLine = new PolylineOptions().width(10)
                    .color(Color.RED);

            for (int i = 0; i < directionPoint.size(); i++) {
                rectLine.add(directionPoint.get(i));
            }
            // Adding route on the map
            mGoogleMap.addPolyline(rectLine);

添加点

           MarkerOptions markerOptions = new MarkerOptions();
           Bitmap icon = BitmapFactory.decodeResource(
                    EMaps2.this.getResources(), R.drawable.pointa);
                markerOptions
                        .icon(BitmapDescriptorFactory.fromBitmap(icon));
            markerOptions.position(fromPosition);
            markerOptions.title("Point A");
            mGoogleMap.addMarker(markerOptions);

Android Google地图 - 如何在相同的细分中划分Google地图路线？

1 个答案: