Leaflet Map CircleMarker-以像素为单位指定半径的固定大小的圆

Creation

Factory	Description
`L.circleMarker(<LatLng>` `latlng, <CircleMarker options> options?)`	Instantiates a circle marker object given a geographical point, and an optional options object. 实例化给定地理点的圆标记对象和可选选项对象。

Options

Option	Type	Default	Description
`radius`	`Number`	`10`	Radius of the circle marker, in pixels 圆标记的半径，以像素为单位

▶ Options inherited from Path

Option	Type	Default	Description
`stroke`	`Boolean`	`true`	Whether to draw stroke along the path. Set it to `false` to disable borders on polygons or circles. 是否沿路径绘制笔划。将其设置为false以禁用多边形或圆上的边界。
`color`	`String`	`'#3388ff'`	Stroke color 笔划颜色
`weight`	`Number`	`3`	Stroke width in pixels 笔划宽度（像素）
`opacity`	`Number`	`1.0`	Stroke opacity 笔划不透明度
`lineCap`	`String`	`'round'`	A string that defines shape to be used at the end of the stroke. 定义要在笔划结束时使用的形状的字符串。
`lineJoin`	`String`	`'round'`	A string that defines shape to be used at the corners of the stroke. 一个字符串，用于定义要在笔划角处使用的形状。
`dashArray`	`String`	`null`	A string that defines the stroke dash pattern. Doesn’t work on `Canvas`-powered layers in some old browsers. 定义笔划-破折号模式的字符串。在某些旧浏览器中，无法使用画布驱动的图层。
`dashOffset`	`String`	`null`	A string that defines the distance into the dash pattern to start the dash. Doesn’t work on `Canvas`-powered layers in some old browsers. 一个字符串，用于定义进入破折线图案的距离，以开始破折线。在某些旧浏览器中，无法使用画布驱动的图层。
`fill`	`Boolean`	`depends`	Whether to fill the path with color. Set it to `false` to disable filling on polygons or circles. 是否用颜色填充路径。将其设置为false以禁用多边形或圆上的填充。
`fillColor`	`String`	`*`	Fill color. Defaults to the value of the `color` option 填充颜色。默认为颜色选项的值
`fillOpacity`	`Number`	`0.2`	Fill opacity. 填充不透明度。
`fillRule`	`String`	`'evenodd'`	A string that defines how the inside of a shape is determined. 定义如何确定形状内部的字符串。
`bubblingMouseEvents`	`Boolean`	`true`	When `true`, a mouse event on this path will trigger the same event on the map (unless `L.DomEvent.stopPropagation` is used). 如果为true，此路径上的鼠标事件将触发地图上的相同事件（除非使用L.DomEvent.stopPropagation）。
`renderer`	`Renderer`		Use this specific instance of `Renderer` for this path. Takes precedence over the map’s default renderer. 为此路径使用此特定的渲染器实例。优先于贴图的默认渲染器。
`className`	`String`	`null`	Custom class name set on an element. Only for SVG renderer. 元素上设置的自定义类名。仅适用于SVG渲染器。

▶ Options inherited from Interactive layer

从交互层继承的选项

Option	Type	Default	Description
`interactive`	`Boolean`	`true`	If `false`, the layer will not emit mouse events and will act as a part of the underlying map. 如果为false，该层将不会发出鼠标事件，并将作为底层贴图的一部分。

▶ Options inherited from Layer

从图层继承的选项

Option	Type	Default	Description
`pane`	`String`	`'overlayPane'`	By default the layer will be added to the map’s overlay pane. Overriding this option will cause the layer to be placed on another pane by default. 默认情况下，图层将添加到地图的覆盖窗格中。默认情况下，覆盖此选项将导致图层放置在另一个窗格上。
`attribution`	`String`	`null`	String to be shown in the attribution control, e.g. “© OpenStreetMap contributors”. It describes the layer data and is often a legal obligation towards copyright holders and tile providers. 要在属性控件中显示的字符串，例如“©OpenStreetMap贡献者”。它描述了层数据，通常是版权持有者和瓷砖供应商的法律义务。

Events

Event	Data	Description
`move`	`Event`	Fired when the marker is moved via `setLatLng`. Old and new coordinates are included in event arguments as `oldLatLng`, `latlng`. 通过setLatLng移动标记时激发。旧坐标和新坐标作为oldLatLng、latlng包含在事件参数中。

▶ Mouse events inherited from Interactive layer

从交互层继承的鼠标事件

Event	Data	Description
`click`	`MouseEvent`	Fired when the user clicks (or taps) the layer. 当用户点击（或轻敲）层时激发。
`dblclick`	`MouseEvent`	Fired when the user double-clicks (or double-taps) the layer. 当用户双击（或双击）层时激发。
`mousedown`	`MouseEvent`	Fired when the user pushes the mouse button on the layer. 当用户按下层上的鼠标按钮时激发。
`mouseup`	`MouseEvent`	Fired when the user releases the mouse button pushed on the layer. 当用户释放层上的鼠标按钮时激发。
`mouseover`	`MouseEvent`	Fired when the mouse enters the layer. 鼠标进入层时激发。
`mouseout`	`MouseEvent`	Fired when the mouse leaves the layer. 鼠标离开层时激发。
`contextmenu`	`MouseEvent`	Fired when the user right-clicks on the layer, prevents default browser context menu from showing if there are listeners on this event. Also fired on mobile when the user holds a single touch for a second (also called long press). 当用户右键单击层时激发，防止默认浏览器上下文菜单显示此事件是否有侦听器。当用户按住一秒钟（也称为长按）时，也会在手机上触发。

▶ Events inherited from Layer

从层继承的事件

Event	Data	Description
`add`	`Event`	Fired after the layer is added to a map 将层添加到地图后激发
`remove`	`Event`	Fired after the layer is removed from a map 从地图中删除图层后激发

▶ Popup events inherited from Layer

从层继承的弹出事件

Event	Data	Description
`popupopen`	`PopupEvent`	Fired when a popup bound to this layer is opened 当绑定到此层的弹出窗口打开时激发
`popupclose`	`PopupEvent`	Fired when a popup bound to this layer is closed 当绑定到此层的弹出窗口关闭时激发

▶ Tooltip events inherited from Layer

从层继承的工具提示事件

Event	Data	Description
`tooltipopen`	`TooltipEvent`	Fired when a tooltip bound to this layer is opened. 当绑定到此层的工具提示打开时激发。
`tooltipclose`	`TooltipEvent`	Fired when a tooltip bound to this layer is closed. 当绑定到此层的工具提示关闭时激发。

Methods

Method	Returns	Description
`toGeoJSON(<Number\|false> precision?)`	`Object`	Coordinates values are rounded with `formatNum` function with given `precision`. Returns a `GeoJSON` representation of the circle marker (as a GeoJSON `Point` Feature). 坐标值使用formatNum函数以给定精度进行四舍五入。返回圆标记的GeoJSON表示（作为GeoJSON点特征）
`setLatLng(<LatLng> latLng)`	`this`	Sets the position of a circle marker to a new location. 将圆标记的位置设置为新位置。
`getLatLng()`	`LatLng`	Returns the current geographical position of the circle marker 返回圆标记的当前地理位置
`setRadius(<Number> radius)`	`this`	Sets the radius of a circle marker. Units are in pixels. 设置圆标记的半径。单位为像素。
`getRadius()`	`Number`	Returns the current radius of the circle 返回圆的当前半径

▶ Methods inherited from Path

从Path继承的方法

Method	Returns	Description
`redraw()`	`this`	Redraws the layer. Sometimes useful after you changed the coordinates that the path uses. 重画图层。有时在更改路径使用的坐标后会很有用。
`setStyle(<Path options> style)`	`this`	Changes the appearance of a Path based on the options in the `Path options` object. 根据路径选项对象中的选项更改路径的外观。
`bringToFront()`	`this`	Brings the layer to the top of all path layers. 将图层置于所有路径图层的顶部。
`bringToBack()`	`this`	Brings the layer to the bottom of all path layers. 将图层置于所有路径图层的底部。

▶ Methods inherited from Layer

从层继承的方法

Method	Returns	Description
`addTo(<Map\|LayerGroup> map)`	`this`	Adds the layer to the given map or layer group. 将图层添加到给定地图或图层组。
`remove()`	`this`	Removes the layer from the map it is currently active on. 从当前处于活动状态的地图中删除图层。
`removeFrom(<Map> map)`	`this`	Removes the layer from the given map 从给定地图中删除图层
`removeFrom(<LayerGroup> group)`	`this`	Removes the layer from the given `LayerGroup` 从给定图层组中删除图层
`getPane(<String> name?)`	`HTMLElement`	Returns the `HTMLElement` representing the named pane on the map. If `name` is omitted, returns the pane for this layer. 返回表示映射上的命名窗格的HTMLElement。如果省略名称，则返回该层的窗格。
`getAttribution()`	`String`	Used by the `attribution control`, returns the attribution option. 由属性控件使用，返回属性选项。

▶ Popup methods inherited from Layer

从层继承的弹出式方法

Method	Returns	Description
`bindPopup(<String\|HTMLElement\|` `Function\|Popup> content,` `<Popup options> options?)`	`this`	Binds a popup to the layer with the passed `content` and sets up the necessary event listeners. If a `Function` is passed it will receive the layer as the first argument and should return a `String` or `HTMLElement`. 将弹出窗口绑定到包含传递内容的层，并设置必要的事件侦听器。如果传递了一个Function，它将接收该层作为第一个参数，并且应该返回一个String或HTMLElement。
`unbindPopup()`	`this`	Removes the popup previously bound with `bindPopup`. 删除以前绑定bindPopup的弹出窗口。
`openPopup(<LatLng> latlng?)`	`this`	Opens the bound popup at the specified `latlng` or at the default popup anchor if no `latlng` is passed. 在指定的latlng处打开绑定弹出窗口，如果未传递latlng，则在默认弹出窗口锚点处打开绑定的弹出窗口。
`closePopup()`	`this`	Closes the popup bound to this layer if it is open. 关闭绑定到此层的弹出窗口（如果它是打开的）。
`togglePopup()`	`this`	Opens or closes the popup bound to this layer depending on its current state. 根据当前状态打开或关闭绑定到此层的弹出窗口。
`isPopupOpen()`	`boolean`	Returns `true` if the popup bound to this layer is currently open. 如果绑定到此层的弹出窗口当前打开，则返回true。
`setPopupContent(<String\|HTMLElement\|Popup> content)`	`this`	Sets the content of the popup bound to this layer. 设置绑定到此层的弹出窗口的内容。
`getPopup()`	`Popup`	Returns the popup bound to this layer. 返回绑定到此层的弹出窗口。

▶ Tooltip methods inherited from Layer

从层继承的工具提示方法

Method	Returns	Description
`bindTooltip(<String\|HTMLElement` `\|Function\|Tooltip> content,` `<Tooltip options> options?)`	`this`	Binds a tooltip to the layer with the passed `content` and sets up the necessary event listeners. If a `Function` is passed it will receive the layer as the first argument and should return a `String` or `HTMLElement`. 将工具提示绑定到包含传递内容的层，并设置必要的事件侦听器。如果传递了一个Function，它将接收该层作为第一个参数，并且应该返回一个String或HTMLElement。
`unbindTooltip()`	`this`	Removes the tooltip previously bound with `bindTooltip`. 删除以前绑定bindTooltip的工具提示。
`openTooltip(<LatLng> latlng?)`	`this`	Opens the bound tooltip at the specified `latlng` or at the default tooltip anchor if no `latlng` is passed. 在指定的latlng处打开绑定工具提示，如果未传递latlng，则在默认工具提示锚点处打开绑定的工具提示。
`closeTooltip()`	`this`	Closes the tooltip bound to this layer if it is open. 关闭绑定到此图层的工具提示（如果该图层处于打开状态）。
`toggleTooltip()`	`this`	Opens or closes the tooltip bound to this layer depending on its current state. 根据当前状态打开或关闭绑定到此层的工具提示。
`isTooltipOpen()`	`boolean`	Returns `true` if the tooltip bound to this layer is currently open. 如果绑定到此层的工具提示当前处于打开状态，则返回true。
`setTooltipContent(<String\|` `HTMLElement\|Tooltip> content)`	`this`	Sets the content of the tooltip bound to this layer. 设置绑定到此层的工具提示的内容。
`getTooltip()`	`Tooltip`	Returns the tooltip bound to this layer. 返回绑定到此层的工具提示。

▶ Methods inherited from Evented

从Evented继承的方法

Method	Returns	Description
`on(<String> type,` `<Function> fn,` `<Object> context?)`	`this`	Adds a listener function (`fn`) to a particular event type of the object. You can optionally specify the context of the listener (object the this keyword will point to). You can also pass several space-separated types (e.g. `'click dblclick'`). 将侦听器函数（fn）添加到对象的特定事件类型。您可以选择指定侦听器的上下文（this关键字将指向的对象）。您还可以传递几个空格分隔的类型（例如“click-dblclick”）。
`on(<Object> eventMap)`	`this`	Adds a set of type/listener pairs, e.g. `{click: onClick, mousemove: onMouseMove}` 添加一组类型/侦听器对，例如｛click:onClick，mousemove:onMouseMove｝
`off(<String> type,` `<Function> fn?,` `<Object> context?)`	`this`	Removes a previously added listener function. If no function is specified, it will remove all the listeners of that particular event from the object. Note that if you passed a custom context to `on`, you must pass the same context to `off` in order to remove the listener. 删除以前添加的侦听器函数。如果没有指定函数，它将从对象中删除该特定事件的所有侦听器。请注意，如果将自定义上下文传递给on，则必须将相同的上下文传递给off，以便删除侦听器。
`off(<Object> eventMap)`	`this`	Removes a set of type/listener pairs. 移除一组类型/侦听器对。
`off()`	`this`	Removes all listeners to all events on the object. This includes implicitly attached events. 移除对象上所有事件的所有侦听器。这包括隐式附加的事件。
`fire(<String> type, <Object>` `data?, <Boolean> propagate?)`	`this`	Fires an event of the specified type. You can optionally provide a data object — the first argument of the listener function will contain its properties. The event can optionally be propagated to event parents. 激发指定类型的事件。您可以选择提供一个数据对象-侦听器函数的第一个参数将包含其属性。可以选择将事件传播到事件父级。
`listens(<String> type,` `<Boolean> propagate?)`	`Boolean`	Returns `true` if a particular event type has any listeners attached to it. The verification can optionally be propagated, it will return `true` if parents have the listener attached to it. 如果某个特定事件类型附加了任何侦听器，则返回true。验证可以选择性地传播，如果父母将监听器附加到它，它将返回true。
`once(…)`	`this`	Behaves as `on(…)`, except the listener will only get fired once and then removed. 行为与on（…）相同，但侦听器只会被激发一次，然后被移除。
`addEventParent(<Evented> obj)`	`this`	Adds an event parent – an `Evented` that will receive propagated events 添加事件父级-将接收传播事件的Evented
`removeEventParent(<Evented> obj)`	`this`	Removes an event parent, so it will stop receiving propagated events 移除事件父级，因此它将停止接收传播的事件
`addEventListener(…)`	`this`	Alias to `on(…)`
`removeEventListener(…)`	`this`	Alias to `off(…)`
`clearAllEventListeners(…)`	`this`	Alias to `off()`
`addOneTimeEventListener(…)`	`this`	Alias to `once(…)`
`fireEvent(…)`	`this`	Alias to `fire(…)`
`hasEventListeners(…)`	`Boolean`	Alias to `listens(…)`

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