blocks|key|985110|text|从相关的API文档中，centreAndZoom方法使用一个Point作为它的第一个参数。而且，你的缩放系数为零，看起来可能会引起问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|985111|点和非零缩放比例尺可能会带来更多的运气，如下所示：|985112|map.centerAndZoom(new+Point(51.1,+4.3),+0.5);|code-block|syntax|javascript|985113|该方法具有延迟返回类型，因此您可以提供一个回调，以便在方法调用完成后作出反应。|985114|entityMap|0|LINK|mutability|MUTABLE|url|https://developers.arcgis.com/javascript/jsapi/map-amd.html#centerandzoom^0|4|5|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@$A|V|B|W|1|X]]|C|$]]|$1|D|3|E|5|6|7|Y|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|Z|8|@]|9|@]|C|$I|J]]|$1|K|3|L|5|6|7|10|8|@]|9|@]|C|$]]|$1|M|3|-4|5|6|7|11|8|@]|9|@]|C|$]]]|N|$O|$5|P|Q|R|C|$S|T]]]]

From the relevant <a href="https://developers.arcgis.com/javascript/jsapi/map-amd.html#centerandzoom" rel="nofollow">API documentation</a> the centreAndZoom method takes a Point as its first argument. Also your zoom factor of zero looks like it might cause a problem.

You might have more luck with a Point and a non-zero zoom scale, like this:

<pre><code>map.centerAndZoom(new Point(51.1, 4.3), 0.5);
</code></pre>

The method has a Deferred return type so that you can provide a callback to react when the method call has completed.

blocks|key|1590692|text|centerAndZoom更适合于事件，比如用户从列表中选择了某个城市，并希望地图自动缩放到它。正如瑞奇所指出的，它还需要一个点，而缩放级别为零是行不通的。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1590693|如果您根本不想要任何Esri基本地图，那么在最初创建地图时不要使用它。微修改此贴图服务示例|1590694|++require(["esri/map",+"esri/layers/ArcGISTiledMapServiceLayer",+"dojo/domReady!"],
++++function(Map,+Tiled)+{
++++++map+=+new+Map("map",+{zoom:+3});

++++++var+tiled+=+new+Tiled("http://tiles.arcgis.com/tiles/nSZVuSZjHpEZZbRo/arcgis/rest/services/Historische_tijdreis_1815/MapServer");
++++++map.addLayer(tiled);
++++}
++);|code-block|syntax|javascript|1590695|然后，您将能够将centerAndZoom作为对事件的响应(例如，在平铺层已从其web源完全加载之后)。|1590696|++require(["esri/map",
+++++++++++"esri/layers/ArcGISTiledMapServiceLayer",
+++++++++++"esri/geometry/Point",
+++++++++++"esri/SpatialReference",
+++++++++++"dojo/domReady!"],
++++function(Map,+Tiled,+Point,+SpatRef)+{
++++++map+=+new+Map("map",+{zoom:+3});

++++++var+tiled+=+new+Tiled("http://tiles.arcgis.com/tiles/nSZVuSZjHpEZZbRo/arcgis/rest/services/Historische_tijdreis_1815/MapServer");
++++++map.addLayer(tiled);

++++++var+cityCenter+=+new+Point(121000,+495000,+new+SpatRef({+wkid:+28992+}));
++++++tiled.on("load",function(evt)+{
++++++++map.centerAndZoom(cityCenter,+6);
++++++});
++++});|1590697|参考构造函数，方法和处理事件。|1590698|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/a/33585572/2118067|1|https://developers.arcgis.com/javascript/jssamples/layers_ags_tiled.html|2|https://developers.arcgis.com/javascript/jsapi/point-amd.html#point1|3|https://developers.arcgis.com/javascript/jsapi/map-amd.html#centerandzoom|4|https://developers.arcgis.com/javascript/jshelp/inside_events.html^0|0|D|1C|8|0|0|12|7|1|0|0|8|D|0|0|2|4|2|7|2|3|A|4|4|0^^$0|@$1|2|3|4|5|6|7|18|8|@$9|19|A|1A|B|C]]|D|@$9|1B|A|1C|1|1D]]|E|$]]|$1|F|3|G|5|6|7|1E|8|@]|D|@$9|1F|A|1G|1|1H]]|E|$]]|$1|H|3|I|5|J|7|1I|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|1J|8|@$9|1K|A|1L|B|C]]|D|@]|E|$]]|$1|O|3|P|5|J|7|1M|8|@]|D|@]|E|$K|L]]|$1|Q|3|R|5|6|7|1N|8|@]|D|@$9|1O|A|1P|1|1Q]|$9|1R|A|1S|1|1T]|$9|1U|A|1V|1|1W]]|E|$]]|$1|S|3|-4|5|6|7|1X|8|@]|D|@]|E|$]]]|T|$U|$5|V|W|X|E|$Y|Z]]|10|$5|V|W|X|E|$Y|11]]|12|$5|V|W|X|E|$Y|13]]|14|$5|V|W|X|E|$Y|15]]|16|$5|V|W|X|E|$Y|17]]]]

<code>centerAndZoom</code> is more intended for events, like when a user has chosen a certain city from a list and would like the map to automatically zoom to it. <a href="https://stackoverflow.com/a/33585572/2118067">As richj points out</a>, it also requires a point, and a zoom level of zero won't work.

If you don't want any of the Esri basemaps at all, just leave that out when initially creating the map. Slightly modifying <a href="https://developers.arcgis.com/javascript/jssamples/layers_ags_tiled.html" rel="nofollow noreferrer">this Tiled Map Service sample</a>:

<pre><code> require(["esri/map", "esri/layers/ArcGISTiledMapServiceLayer", "dojo/domReady!"],
 function(Map, Tiled) {
 map = new Map("map", {zoom: 3});

 var tiled = new Tiled("http://tiles.arcgis.com/tiles/nSZVuSZjHpEZZbRo/arcgis/rest/services/Historische_tijdreis_1815/MapServer");
 map.addLayer(tiled);
 }
 );
</code></pre>

Then, you will be able to include <code>centerAndZoom</code> as a response to an event (e.g. after the Tiled layer has been fully loaded from its web source).

<pre><code> require(["esri/map",
 "esri/layers/ArcGISTiledMapServiceLayer",
 "esri/geometry/Point",
 "esri/SpatialReference",
 "dojo/domReady!"],
 function(Map, Tiled, Point, SpatRef) {
 map = new Map("map", {zoom: 3});

 var tiled = new Tiled("http://tiles.arcgis.com/tiles/nSZVuSZjHpEZZbRo/arcgis/rest/services/Historische_tijdreis_1815/MapServer");
 map.addLayer(tiled);

 var cityCenter = new Point(121000, 495000, new SpatRef({ wkid: 28992 }));
 tiled.on("load",function(evt) {
 map.centerAndZoom(cityCenter, 6);
 });
 });
</code></pre>

Ref. <a href="https://developers.arcgis.com/javascript/jsapi/point-amd.html#point1" rel="nofollow noreferrer"><code>Point</code> constructor</a>, <a href="https://developers.arcgis.com/javascript/jsapi/map-amd.html#centerandzoom" rel="nofollow noreferrer"><code>centerAndZoom</code> method</a>, and <a href="https://developers.arcgis.com/javascript/jshelp/inside_events.html" rel="nofollow noreferrer">Working with events</a>.

blocks|key|2145830|text|也许是esri+api错误，对我来说，它有时(但不总是)未能移动lng的地图中心，lat的缩放级别为18。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2145831|以下是我的工作方式：|2145832|建议：|2145833|map.centerAndZoom(new+Point(lng,+lat),+18);|offset|length|style|CODE|2145834|替代方案：(有时，并不总是，它无法移动地图，也许ESRI需要修复Javascript+v3.24的bug+)|2145835|map.centerAt(new+Point(lng,+lat));
//or
//+map.centerAt(new+Point(lng,+lat,+new+SpatialReference({wkid:+4326})));
map.setZoom(18);|code-block|syntax|javascript|2145836|entityMap^0|0|0|0|0|17|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|W|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|X|8|@$H|Y|I|Z|J|K]]|9|@]|A|$]]|$1|L|3|M|5|6|7|10|8|@]|9|@]|A|$]]|$1|N|3|O|5|P|7|11|8|@]|9|@]|A|$Q|R]]|$1|S|3|-4|5|6|7|12|8|@]|9|@]|A|$]]]|T|$]]

Maybe it is esri api bug, for me, it sometime (but not always) failed to move map center at lng, lat with zoom level 18

Here is how I work around:

Recommend: 

<code>map.centerAndZoom(new Point(lng, lat), 18);</code>

Alternative: (sometimes, not always, it failed to move the map, maybe ESRI need to fix bug for Javascript api v3.24) 

<pre><code>map.centerAt(new Point(lng, lat));
//or
// map.centerAt(new Point(lng, lat, new SpatialReference({wkid: 4326})));
map.setZoom(18);
</code></pre>

So, I am using the ARCGIS api in order to show some old maps, that should start center at and zoomed in to a certain city. After finally figuring out how to use the specific map I want as a basemap, I've struggled for a couple of hours trying to zoom and center at the right place. I am able to zoom in to this place using a default basemap (e.g. "streets"), but not using my custom basemap. I've tried both map.centerAndZoom and map.centerAt, but neither seem to work. The relevant code:

<pre><code>var map;
 require(["esri/map", "esri/layers/ArcGISTiledMapServiceLayer", "dojo/on", "dojo/_base/json", "dojo/dom-style", "esri/request", "esri/geometry/Point", "esri/dijit/Search", "esri/dijit/LocateButton", "esri/tasks/GeometryService", "esri/tasks/locator", "esri/tasks/ProjectParameters", "esri/symbols/PictureMarkerSymbol", "dojo/domReady!"],
 function(Map, ArcGISTiledMapServiceLayer) {
 map = new Map("venster_Midden_2_Map");
 var customBasemap = new ArcGISTiledMapServiceLayer(
 "http://tiles.arcgis.com/tiles/nSZVuSZjHpEZZbRo/arcgis/rest/services/Historische_tijdreis_1815/MapServer");
 map.addLayer(customBasemap);
 map.centerAndZoom(51.1, 4.3, 0);
 });
</code></pre>

Does anyone have a clue on how to get the zoom and center working? Or might it be the case that certain maps simply don't allow such operations?

ArcGIS API - Cannot center or zoom

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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所以，我使用ARCGIS来显示一些旧地图，这些地图应该从中心开始，然后放大到某个城市。在终于弄明白如何使用我想要的地图作为基本地图后，我挣扎了几个小时，试图在正确的地方缩放和中心。我可以放大到这个地方使用默认的基本地图(例如“街道”)，但不使用我的自定义基本地图。我尝试过map.centerAndZoom和map.ce...

问ArcGIS API -不能对中心或缩放
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