下面的教程时OSMDroid路由问题 [英] OSMDroid Routing problems when following a tutorial
问题描述
我利用以下code把路线覆盖到一个OSM地图机器人使用从下面的教程得到code（的 HTTP：//$c$c.google.com/p/osmbonuspack/wiki/Tutorial_1 ），但略有调整到自定义的方法，而不是在OnCrerate方法被使用。
现在这确实路线，并产生在地图上的绿色覆盖。然而，有一个从For循环起呈现的问题。这是因为road.mNodes始终是大小为零，表明没有指令下来。
顺便说一句我还考察RoadNodes和RoadItems两者也是大小为零。这意味着气泡（ExtendedOVerlayItems）从不显示航线上。
任何意见将是极大的AP preciated。
<$p$p><$c$c>//======================================================================================================/ **
*两个geopoints之间添加一个路由覆盖与路线点泡沫覆盖。
*
* @参数的startPoint路线开始。
* @参数端点路线终点。
* //
//======================================================================================================
公共无效addRouteOverlay（GeoPoint对象的startPoint，GeoPoint的端点）
{
通过道路管理者// 1路由
RoadManager roadManager =新OSRMRoadManager（）;
roadManager.addRequestOption（routeType =自行车）; //然后，你retreive起点和终点之间的道路：
ArrayList的＆LT;＆GeoPoint的GT;航点=新的ArrayList＆LT;＆GeoPoint的GT;（）;
waypoints.add（的startPoint）;
waypoints.add（端点）; //终点 路路= roadManager.getRoad（航点）; //然后，建立与路径形状的叠加：
PathOverlay roadOverlay = RoadManager.buildRoadOverlay（道路，map.getContext（））;
roadOverlay.setColor（Color.GREEN）;
//添加路由覆盖到地图
map.getOverlays（）加（roadOverlay）。 map.invalidate（）; // refesh地图 可绘制标记= ctx.getResources（）getDrawable（R.drawable.map_marker_blue）。 最终的ArrayList＆LT; ExtendedOverlayItem＆GT; roadItems =
新的ArrayList＆LT; ExtendedOverlayItem＆GT;（）;
ItemizedOverlayWithBubble＆LT; ExtendedOverlayItem＆GT; roadNodes =
新ItemizedOverlayWithBubble＆LT; ExtendedOverlayItem＆GT;（CTX，roadItems，地图）;
的for（int i = 0; I＆LT; road.mNodes.size（）;我++）
{
RoadNode节点= road.mNodes.get（ⅰ）;
ExtendedOverlayItem nodeMarker =新ExtendedOverlayItem（步+ I，，node.mLocation，CTX）;
nodeMarker.setMarkerHotspot（OverlayItem.HotspotPlace.CENTER）;
nodeMarker.setMarker（标记）;
roadNodes.addItem（nodeMarker）; nodeMarker.setDescription（node.mInstructions）;
nodeMarker.setSubDescription（road.getLengthDurationText（node.mLength，node.mDuration））;
可绘制图标= ctx.getResources（）getDrawable（R.drawable.ic_continue）。
nodeMarker.setImage（图标）; } //结束了 。map.getOverlays（）加（roadNodes）;}//===================================================================================================
我今天有这个问题，并设法解决它。问题在于旧版本的奖金包。我从osmbonuspack_v3.8.jar更新到版本osmbonuspack_v4.1.jar，它解决了这个问题。我还使用了MapQuestRoadManager（）选项相对于OSRMRoadManager（），但其值得铭记这样做时，这几个在奖金包改超类型的方法 - 要求在ExtendedOverlayItem如的OnOpen（）方法打完电话后定投它的参数。
最后RoadManager经理=新MapQuestRoadManager（）;
manager.addRequestOption（routeType =最快）;
I utilise the following code to put a route overlay onto an OSM droid map, using code gotten from the following tutorial (http://code.google.com/p/osmbonuspack/wiki/Tutorial_1) but slightly tweaked into a custom method, rather than being used in the OnCrerate method.
Now this does route and produces a green overlay on the map. However, there is a problem exhibited from the For Loop onwards. This is because road.mNodes is always size zero indicating that no instructions are coming down.
Incidently I also inspected RoadNodes and RoadItems and both were also size zero. This means the bubbles (ExtendedOVerlayItems) are never displayed on the route.
Any advice would be greatly appreciated.
//======================================================================================================
/**
* Add a route overlay between two geopoints with Bubble overlays on the route points.
*
* @param startPoint Route start.
* @param endPoint Route end.
*//
//======================================================================================================
public void addRouteOverlay(GeoPoint startPoint, GeoPoint endPoint)
{
//1 Routing via road manager
RoadManager roadManager = new OSRMRoadManager();
roadManager.addRequestOption("routeType=bicycle");
//Then, retreive the road between your start and end point:
ArrayList<GeoPoint> waypoints = new ArrayList<GeoPoint>();
waypoints.add(startPoint);
waypoints.add(endPoint); //end point
Road road = roadManager.getRoad(waypoints);
// then, build an overlay with the route shape:
PathOverlay roadOverlay = RoadManager.buildRoadOverlay(road, map.getContext());
roadOverlay.setColor(Color.GREEN);
//Add Route Overlays into map
map.getOverlays().add(roadOverlay);
map.invalidate();//refesh map
Drawable marker = ctx.getResources().getDrawable(R.drawable.map_marker_blue);
final ArrayList<ExtendedOverlayItem> roadItems =
new ArrayList<ExtendedOverlayItem>();
ItemizedOverlayWithBubble<ExtendedOverlayItem> roadNodes =
new ItemizedOverlayWithBubble<ExtendedOverlayItem>(ctx, roadItems, map);
for (int i=0; i<road.mNodes.size(); i++)
{
RoadNode node = road.mNodes.get(i);
ExtendedOverlayItem nodeMarker = new ExtendedOverlayItem("Step "+i, "", node.mLocation, ctx);
nodeMarker.setMarkerHotspot(OverlayItem.HotspotPlace.CENTER);
nodeMarker.setMarker(marker);
roadNodes.addItem(nodeMarker);
nodeMarker.setDescription(node.mInstructions);
nodeMarker.setSubDescription(road.getLengthDurationText(node.mLength, node.mDuration));
Drawable icon = ctx.getResources().getDrawable(R.drawable.ic_continue);
nodeMarker.setImage(icon);
}//end for
map.getOverlays().add(roadNodes);
}//===================================================================================================
I had this problem today and managed to solve it. The problem lies with an old version of the bonus pack. I updated to version osmbonuspack_v4.1.jar from osmbonuspack_v3.8.jar and it solved the problem. I also used the MapQuestRoadManager() option as opposed to the OSRMRoadManager().However, its worth bearing in mind that when doing this a few of the super type methods changed in the bonus pack - such as the onOpen() method on ExtendedOverlayItem required its parameter to be cast after calling.
final RoadManager manager= new MapQuestRoadManager();
manager.addRequestOption("routeType=fastest");
这篇关于下面的教程时OSMDroid路由问题的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
