SuperMap怎么用JavaScript在地图上标注文字_IT百科

<html xmlns="<a target="_blank" href="http://www.w3.org/1999/xhtml">http://www.w3.org/1999/xhtml</a>">

<head>

var map, layer, popup

var featuresLayer, drawLine, drawPoint, drawPolygon, selectDrawFeature

var drawFeatureStyle = {

strokeColor: null,

strokeWidth: null,

strokeOpacity: null,

pointRadius: 6,

fillColor: null,

fillOpacity: null,

cursor: "pointer"

}//定义要添加要素的样式

var selectStyle={

strokeColor: "#0099FF",

strokeWidth: 2,

pointerEvents: "visiblePainted",

fillColor: "#FF8247",

fillOpacity: 0.4,

pointRadius: 6,

label: "",

fontSize: 14,

fontWeight: "normal",

cursor: "pointer"

}// 点击添加的元素之后的样式

// 设置访问的GIS服务地址

var url = "<a target="_blank" href="http://localhost:8090/iserver/services/map-ChinaTestWorkPlace/rest/maps/ChinaTest">http://localhost:8090/iserver/services/map-ChinaTestWorkPlace/rest/maps/ChinaTest</a>"

function GetMap() {

// 创建地图对象

map = new SuperMap.Map("map")

//control = new SuperMap.Control.MousePosition()//该控件显示鼠标移动时，所在点的地理坐标。

//map.addControl(control) //添加控件

featuresLayer = new SuperMap.Layer.Vector("<a target="_blank" href="mailto:test!@#')//">test!@#")//</a> test!@# 是图层的name属性

drawLine = new SuperMap.Control.DrawFeature(featuresLayer, SuperMap.Handler.Path, { multi: true })

drawLine.events.on({ "featureadded": drawCompleted })

drawPoint = new SuperMap.Control.DrawFeature(featuresLayer, SuperMap.Handler.Point, { multi: true })

drawPoint.events.on({ "featureadded": drawCompleted })

drawPolygon = new SuperMap.Control.DrawFeature(featuresLayer, SuperMap.Handler.Polygon, { multi: true })

drawPolygon.events.on({ "featureadded": drawCompleted })

map.addControls([drawLine, drawPoint, drawPolygon])

map.addLayer(featuresLayer)

// 创建图层对象

layer = new SuperMap.Layer.TiledDynamicRESTLayer("World", url, { transparent: true, cacheEnabled: true }, { maxResolution: "auto" })

layer.events.on({ "layerInitialized": AddLayer })

}

// 加载图层

function AddLayer() {

// 向Map添加图层

map.addLayer(layer)

map.setCenter(new SuperMap.LonLat(116.409749, 39.912344), 1)</p><p> //这里添加两种事件方式点击事件和mouseover事件，都可以实现，这里屏蔽掉单击事件。

// 添加单击事件

//selectDrawFeature = new SuperMap.Control.SelectFeature(featuresLayer, {

//onSelect: openWindow,

//onUnselect: unfeatueSelect

//})

//selectDrawFeature.repeat = true

//selectDrawFeature.toggle = true

//map.addControl(selectDrawFeature)

//selectDrawFeature.activate()

//添加鼠标mouseover 事件

selectDrawFeature = new SuperMap.Control.SelectFeature(featuresLayer, {

onSelect: openWindow,

onUnselect: unfeatueSelect,

hover:true

})

map.addControl(selectDrawFeature)

selectDrawFeature.activate()

}

function drawFeature(type) {

var fillColor = document.getElementById("color1").value

var strokeColor = document.getElementById("color2").value

var opacity = document.getElementById("txtOpacity").value

var lineWidth = document.getElementById("txtLineWidth").value

drawFeatureStyle.fillColor = fillColor

drawFeatureStyle.strokeColor = strokeColor

drawFeatureStyle.strokeWidth = lineWidth

drawFeatureStyle.strokeOpacity = opacity

drawFeatureStyle.fillOpacity = opacity

if (type === "point") {

drawPoints()

}

else if (type === "line") {

drawLines()

}

else if (type === "polygon") {

drawPolygons()

}

function drawPoints() {

featuresLayer.style = drawFeatureStyle

drawPoint.activate()

}

function drawLines() {

featuresLayer.style = drawFeatureStyle

drawLine.activate()

}

function drawPolygons() {

featuresLayer.style = drawFeatureStyle

drawPolygon.activate()

}

function drawCompleted(drawGeometryArgs) {

drawLine.deactivate()

drawPoint.deactivate()

drawPolygon.deactivate()

}

function clearAll() {

featuresLayer.removeAllFeatures()

}

function openWindow(feature) {

var name

if (feature.geometry.CLASS_NAME == "SuperMap.Geometry.MultiPoint") {

name = "标注点"

} else if (feature.geometry.CLASS_NAME == "SuperMap.Geometry.MultiPolygon") {

name = "标注面"

} else {

name = "标注线"

}

popup = new SuperMap.Popup.FramedCloud("chicken",

feature.geometry.getBounds().getCenterLonLat(),

null,

name,

null, true)

feature.popup = popup

popup.panMapIfOutOfView = true

map.addPopup(popup)

feature.style = selectStyle

featuresLayer.redraw()

featuresLayer.setOpacity(0.5)

}

function unfeatueSelect(feature) {

map.removePopup(feature.popup)

feature.popup.destroy()

feature.popup = null</p><p> feature.style = drawFeatureStyle

featuresLayer.redraw()

}

</script>

</head>

<div>

</div>

<div>

<tr>

<td>

填充颜色：

</td>

<td>

<input type="text" size="10" id="color1" maxlength="7" name="rgb1" value="#FFFFFF"

onclick="showColorPicker(this, document.forms[0].rgb1)"/>

</td>

</tr>

<tr>

<td>

填充透明度：

</td>

<td>

</select>

</td>

</tr>

<tr>

<td>

线宽：

</td>

<td>

</td>

</tr>

<tr>

<td>

边线颜色：

</td>

<td>

<input type="text" size="10" id="color2" maxlength="7" name="rgb2" value="#FF0000"

onclick="showColorPicker(this, document.forms[0].rgb2)"/>

</td>

</tr>

</table></p><p>

</div>

</body>

</html>

</p>

你可以在字段表达式中输入：SmID ||char(10)||Geometry_1；注意：SmID和Geometry_1均为我自己的字段名，char(10) 表示换行， || 表示字符串联接。

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SuperMap怎么用JavaScript在地图上标注文字

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