6、使用infowindow

ESRI公司提供的infowindow既美观用实用,而且可定制性强,是时时获取信息的好窗口,用好它可以使工作量大大的减少。

他的使用方法介绍如下:

1、 主要属性

Property

Type

Description

anchor

String

Placement of the InfoWindow with respect to the graphic. See the Constants table for values.

Infowindow的显示位置,具体请看其“常量“设置

coords

Point

The anchor point of the InfoWindow in screen coordinates.

信息窗口所在的坐标点

fixedAnchor

String

InfoWindow always show with the specified anchor. See the Constants table for values.

指定的显示位置

isShowing

Boolean

Determines whether the InfoWindow is currently shown on the map.

判断信息窗口的显示状态

2、 常量:

ANCHOR_LOWERLEFT

窗口位于点的左下

ANCHOR_LOWERRIGHT

InfoWindow is anchored to the lower right of the point. 右下

ANCHOR_UPPERLEFT

InfoWindow is anchored to the upper left of the point.左上

ANCHOR_UPPERRIGHT

InfoWindow is anchored to the upper right of the point.右上

3、 方法:

Method

Return Value

Description

hide()

none

隐藏信息窗口

move(point)

none

Moves the InfoWindow to the specified screen point.

移动信息框到指定点

resize(width, height)

none

Resizes the InfoWindow to the specified height and width in pixels.改变信息框大小

setContent(stringOrDOMNode)

InfoWindow

Sets the content in the InfoWindow.设置信息窗口的内容

setFixedAnchor(anchor)

none

Sets the fixed location of the InfoWindow anchor. Valid values are listed in the Constants table.设置显示位置

Anchor参数为上面的常量类型

setTitle(title)

InfoWindow

Sets the title for the InfoWindow.

设置窗口的标题

show(point, anchor)

none

Shows the InfoWindow at the specified screen point and anchor. Valid values are listed in the Constants table.

显示信息框(位置点,位置)

4、 事件:

onHide()

隐藏窗口时的事件

onShow()

显示窗口时的事件

5、 使用实例:

function infowindow(evt) 

{ 

map.infoWindow.setTitle("Coordinates"); 

map.infoWindow.setContent("lat/lon : " + evt.mapPoint.y + ", " + evt.mapPoint.x + 

"<br />screen x/y : " + evt.screenPoint.x + ", " + evt.screenPoint.y); 

map.infoWindow.show(evt.screenPoint,map.getInfoWindowAnchor(evt.screenPoint)); 

} 

map.getInfoWindowAnchor(evt.screenPoint);
//为获取系统建议的显示位置,这样写可以使窗口尽量显示在屏幕中最佳位置!!

 

posted @ 2013-04-27 21:51  沉默的猿  阅读(795)  评论(0编辑  收藏  举报
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