http://blog.csdn.net/gisshixisheng/article/details/46794813

概述:

本节重点讲述OpenLayers3中Popup的调用时实现,OL3改用Overlay代替OL2的Popup功能。

接口简介:

overlay跟ol.control.Control一样,是一个可见的窗口,但是不和Control一样,不是固定在地图区域的某个部分,而是显示在一个地图坐标上,随着地图的移动或者缩放而移动的。其调用方式如下:

  1. var popup = new ol.Overlay({
  2. element: document.getElementById('popup')
  3. });
  4. popup.setPosition(coordinate);
  5. map.addOverlay(popup);

new ol.Overlay(options)

Name Type Description
options

Overlay options.

Name Type Description
element Element | undefined

The overlay element.

offset Array.<number> |undefined

Offsets in pixels used when positioning the overlay. The fist element in the array is the horizontal offset. A positive value shifts the overlay right. The second element in the array is the vertical offset. A positive value shifts the overlay down. Default is [0, 0].

position ol.Coordinate |undefined

The overlay position in map projection.

positioning ol.OverlayPositioning| string | undefined

Defines how the overlay is actually positioned with respect to its position property. Possible values are'bottom-left''bottom-center''bottom-right''center-left''center-center','center-right''top-left''top-center', and 'top-right'. Default is 'top-left'.

stopEvent boolean | undefined

Whether event propagation to the map viewport should be stopped. Default is true. If true the overlay is placed in the same container as that of the controls (CSS class name ol-overlaycontainer-stopevent); iffalse it is placed in the container with CSS class name ol-overlaycontainer.

insertFirst boolean | undefined

Whether the overlay is inserted first in the overlay container, or appended. Default is true. If the overlay is placed in the same container as that of the controls (see the stopEvent option) you will probably setinsertFirst to true so the overlay is displayed below the controls.

Fires:

Extends

Observable Properties

Name Type Settable ol.ObjectEvent type Description
element Element | undefined yes change:element

The Element containing the overlay.

map ol.Map | undefined yes change:map

The map that the overlay is part of.

offset Array.<number> yes change:offset

The offset.

position ol.Coordinate | undefined yes change:position

The spatial point that the overlay is anchored at.

positioning ol.OverlayPositioning yes change:positioning

How the overlay is positioned relative to its point on the map.

Methods

getElement(){Element|undefined}

Get the DOM element of this overlay.

Returns:

The Element containing the overlay. 

getMap(){ol.Map|undefined}

Get the map associated with this overlay.

Returns:

The map that the overlay is part of. 

getOffset(){Array.<number>}

Get the offset of this overlay.

Returns:

The offset. 

getPosition(){ol.Coordinate|undefined}

Get the current position of this overlay.

Returns:

The spatial point that the overlay is anchored at. 

Get the current positioning of this overlay.

Returns:

How the overlay is positioned relative to its point on the map. 

on(type, listener, opt_this){goog.events.Key} inherited

Listen for a certain type of event.

Name Type Description
type string | Array.<string>

The event type or array of event types.

listener function

The listener function.

this Object

The object to use as this in listener.

Returns:

Unique key for the listener. 

once(type, listener, opt_this){goog.events.Key} inherited

Listen once for a certain type of event.

Name Type Description
type string | Array.<string>

The event type or array of event types.

listener function

The listener function.

this Object

The object to use as this in listener.

Returns:

Unique key for the listener. 

setElement(element)

Set the DOM element to be associated with this overlay.

Name Type Description
element Element | undefined

The Element containing the overlay.

setMap(map)

Set the map to be associated with this overlay.

Name Type Description
map ol.Map | undefined

The map that the overlay is part of.

setOffset(offset)

Set the offset for this overlay.

Name Type Description
offset Array.<number>

Offset.

setPosition(position)

Set the position for this overlay.

Name Type Description
position ol.Coordinate | undefined

The spatial point that the overlay is anchored at.

setPositioning(positioning)

Set the positioning for this overlay.

Name Type Description
positioning ol.OverlayPositioning

how the overlay is positioned relative to its point on the map.

un(type, listener, opt_this) inherited

Unlisten for a certain type of event.

Name Type Description
type string | Array.<string>

The event type or array of event types.

listener function

The listener function.

this Object

The object which was used as this by the listener.

Removes an event listener using the key returned by on() or once().

Name Type Description
key goog.events.Key

Key.

上面的内容是OL3 的API中关于overlay的部分。

调用示例:

1、popup样式

  1. body, #map {
  2. border: 0px;
  3. margin: 0px;
  4. padding: 0px;
  5. width: 100%;
  6. height: 100%;
  7. font-size: 13px;
  8. }
  9. .ol-popup {
  10. display: none;
  11. position: absolute;
  12. background-color: white;
  13. -moz-box-shadow: 0 1px 4px rgba(0,0,0,0.2);
  14. -webkit-filter: drop-shadow(0 1px 4px rgba(0,0,0,0.2));
  15. filter: drop-shadow(0 1px 4px rgba(0,0,0,0.2));
  16. border: 1px solid #cccccc;
  17. bottom: 12px;
  18. left: -50px;
  19. width: 200px;
  20. }
  21. .ol-popup:after, .ol-popup:before {
  22. top: 100%;
  23. border: solid transparent;
  24. content: " ";
  25. height: 0;
  26. width: 0;
  27. position: absolute;
  28. pointer-events: none;
  29. }
  30. .ol-popup:after {
  31. border-top-color: white;
  32. border-width: 10px;
  33. left: 48px;
  34. margin-left: -10px;
  35. }
  36. .ol-popup:before {
  37. border-top-color: #cccccc;
  38. border-width: 11px;
  39. left: 48px;
  40. margin-left: -11px;
  41. }
  42. .popup-title{
  43. font-weight: bold;
  44. border-bottom:1px solid #cccccc;
  45. padding: 5px 8px;
  46. }
  47. .popup-content{
  48. padding: 5px 8px;
  49. }
  50. .ol-popup-closer {
  51. text-decoration: none;
  52. position: absolute;
  53. top: 6px;
  54. right: 6px;
  55. }
  56. .ol-popup-closer:after {
  57. content: "✖";
  58. }

2、popup容器

  1. <div id="map">
  2. <div id="popup" class="ol-popup">
  3. <a href="#" id="popup-closer" class="ol-popup-closer"></a>
  4. <div id="popup-title" class="popup-title"></div>
  5. <div id="popup-content" class="popup-content"></div>
  6. </div>
  7. </div>

3、实现js

  1. var container = document.getElementById('popup');
  2. var content = document.getElementById('popup-content');
  3. var title = document.getElementById('popup-title');
  4. var closer = document.getElementById('popup-closer');
  5. closer.onclick = function(){
  6. container.style.display = 'none';
  7. closer.blur();
  8. return false;
  9. };
  10. var overlay = new ol.Overlay({
  11. element: container
  12. });
  13. map.addOverlay(overlay);
  1. map.on('click', function(evt) {
  2. var coordinate = evt.coordinate;
  3. var hdms = ol.coordinate.toStringHDMS(ol.proj.transform(
  4. coordinate, 'EPSG:4326', 'EPSG:4326'));
  5. overlay.setPosition(coordinate);
  6. content.innerHTML = '<p>You clicked here:</p><code>' + hdms +
  7. '</code>';
  8. container.style.display = 'block';
  9. title.innerHTML = "提示信息";
  10. title.style.display = 'block';
  11. map.getView().setCenter(coordinate);
  12. });

示例完整代码如下:

  1. <html xmlns="http://www.w3.org/1999/xhtml">
  2. <head>
  3. <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
  4. <title>Ol3 popup</title>
  5. <link rel="stylesheet" type="text/css" href="http://localhost/ol3/css/ol.css"/>
  6. <style type="text/css">
  7. body, #map {
  8. border: 0px;
  9. margin: 0px;
  10. padding: 0px;
  11. width: 100%;
  12. height: 100%;
  13. font-size: 13px;
  14. }
  15. .ol-popup {
  16. display: none;
  17. position: absolute;
  18. background-color: white;
  19. -moz-box-shadow: 0 1px 4px rgba(0,0,0,0.2);
  20. -webkit-filter: drop-shadow(0 1px 4px rgba(0,0,0,0.2));
  21. filter: drop-shadow(0 1px 4px rgba(0,0,0,0.2));
  22. border: 1px solid #cccccc;
  23. bottom: 12px;
  24. left: -50px;
  25. width: 200px;
  26. }
  27. .ol-popup:after, .ol-popup:before {
  28. top: 100%;
  29. border: solid transparent;
  30. content: " ";
  31. height: 0;
  32. width: 0;
  33. position: absolute;
  34. pointer-events: none;
  35. }
  36. .ol-popup:after {
  37. border-top-color: white;
  38. border-width: 10px;
  39. left: 48px;
  40. margin-left: -10px;
  41. }
  42. .ol-popup:before {
  43. border-top-color: #cccccc;
  44. border-width: 11px;
  45. left: 48px;
  46. margin-left: -11px;
  47. }
  48. .popup-title{
  49. font-weight: bold;
  50. border-bottom:1px solid #cccccc;
  51. padding: 5px 8px;
  52. }
  53. .popup-content{
  54. padding: 5px 8px;
  55. }
  56. .ol-popup-closer {
  57. text-decoration: none;
  58. position: absolute;
  59. top: 6px;
  60. right: 6px;
  61. }
  62. .ol-popup-closer:after {
  63. content: "✖";
  64. }
  65. </style>
  66. <script type="text/javascript" src="http://localhost/ol3/build/ol.js"></script>
  67. <script type="text/javascript" src="http://localhost/jquery/jquery-1.8.3.js"></script>
  68. <script type="text/javascript">
  69. function init(){
  70. var format = 'image/png';
  71. var bounds = [73.4510046356223, 18.1632471876417,
  72. 134.976797646506, 53.5319431522236];
  73. var untiled = new ol.layer.Image({
  74. source: new ol.source.ImageWMS({
  75. ratio: 1,
  76. url: 'http://localhost:8081/geoserver/lzugis/wms',
  77. params: {'FORMAT': format,
  78. 'VERSION': '1.1.1',
  79. LAYERS: 'lzugis:capital',
  80. STYLES: ''
  81. }
  82. })
  83. });
  84. var projection = new ol.proj.Projection({
  85. code: 'EPSG:4326',
  86. units: 'degrees'
  87. });
  88. var container = document.getElementById('popup');
  89. var content = document.getElementById('popup-content');
  90. var title = document.getElementById('popup-title');
  91. var closer = document.getElementById('popup-closer');
  92. closer.onclick = function(){
  93. container.style.display = 'none';
  94. closer.blur();
  95. return false;
  96. };
  97. var overlay = new ol.Overlay({
  98. element: container
  99. });
  100. map.addOverlay(overlay);
  101. var map = new ol.Map({
  102. controls: ol.control.defaults({
  103. attribution: false
  104. }),
  105. target: 'map',
  106. layers: [untiled],
  107. overlays: [overlay],
  108. view: new ol.View({
  109. projection: projection
  110. })
  111. });
  112. map.getView().fitExtent(bounds, map.getSize());
  113. map.on('click', function(evt) {
  114. var coordinate = evt.coordinate;
  115. var hdms = ol.coordinate.toStringHDMS(ol.proj.transform(
  116. coordinate, 'EPSG:4326', 'EPSG:4326'));
  117. overlay.setPosition(coordinate);
  118. content.innerHTML = '<p>You clicked here:</p><code>' + hdms +
  119. '</code>';
  120. container.style.display = 'block';
  121. title.innerHTML = "提示信息";
  122. title.style.display = 'block';
  123. map.getView().setCenter(coordinate);
  124. });
  125. }
  126. </script>
  127. </head>
  128. <body onLoad="init()">
  129. <div id="map">
  130. <div id="popup" class="ol-popup">
  131. <a href="#" id="popup-closer" class="ol-popup-closer"></a>
  132. <div id="popup-title" class="popup-title"></div>
  133. <div id="popup-content" class="popup-content"></div>
  134. </div>
  135. </div>
  136. </body>
  137. </html>

实现后的效果如下:

(转)OpenLayers3基础教程——OL3之Popup的更多相关文章

  1. OpenLayers3基础教程——OL3之Popup

    概述: 本节重点讲述OpenLayers3中Popup的调用时实现,OL3改用Overlay取代OL2的Popup功能. 接口简单介绍: overlay跟ol.control.Control一样,是一 ...

  2. (转)OpenLayers3基础教程——OL3基本概念

    http://blog.csdn.net/gisshixisheng/article/details/46756275 OpenLayers3基础教程——OL3基本概念 从本节开始,我会陆陆续续的更新 ...

  3. OpenLayers3基础教程——OL3 介绍control

    概述: 本文讲述的是Ol3中的control的介绍和应用. OL2和OL3 control比較: 相比較Ol2的control,OL3显得特别少,下图分别为Ol2和Ol3的control: Ol2的c ...

  4. OpenLayers3基础教程——OL3基本概念

    从本节開始,我会陆陆续续的更新有关OL3的相关文章--OpenLayers3基础教程,欢迎大家关注我的博客,同一时候也希望我的博客可以给大家带来一点帮助. 概述: OpenLayers 3对OpenL ...

  5. (转) OpenLayers3基础教程——OL3 介绍control

    http://blog.csdn.net/gisshixisheng/article/details/46761535 概述: 本文讲述的是Ol3中的control的介绍和应用. OL2和OL3 co ...

  6. (转)OpenLayers3基础教程——OL3 介绍interaction

    http://blog.csdn.net/gisshixisheng/article/details/46808647 概述: 本节主要讲述OL3的交互操作interaction,重点介绍draw,s ...

  7. (转) OpenLayers3基础教程——加载资源

    概述: 本节讲述如何在Ol3中加载wms图层并显示到地图中. Ol3下载: 你可以在OL官网去下载,下载地址为http://openlayers.org/download/,也可以去我的百度云盘下载, ...

  8. openlayers3入门教程

                                                                                                        ...

  9. Chrome扩展开发基础教程(附HelloWorld)

    1 概述 Chrome扩展开发的基础教程,代码基于原生JS+H5,教程内容基于谷歌扩展开发官方文档. 2 环境 Chrome 88.0.4324.96 Chromium 87.0.4280.141 B ...

随机推荐

  1. 【hdu 2108】Shape of HDU

    [题目链接]:http://acm.hdu.edu.cn/showproblem.php?pid=2108 [题意] [题解] 逆时针; 可以想象一下; 如果是凸多边形的话; 逆时针的相邻的两条边; ...

  2. Spring Boot静态资源处理

    Spring Boot静态资源处理 8.8 Spring Boot静态资源处理 当使用Spring Boot来开发一个完整的系统时,我们往往需要用到前端页面,这就不可或缺地需要访问到静态资源,比如图片 ...

  3. 数字统计(2010年NOIP全国联赛普及组)

    题目描述 请统计某个给定范围[L, R]的所有整数中,数字 2 出现的次数. 比如给定范围[2, 22],数字 2 在数 2 中出现了 1 次,在数 12 中出现 1 次,在数 20 中出 现 1 次 ...

  4. nyoj_49_开心的小明_201403161133

    开心的小明 时间限制:1000 ms  |  内存限制:65535 KB 难度:4   描述 小明今天很开心,家里购置的新房就要领钥匙了,新房里有一间他自己专用的很宽敞的房间.更让他高兴的是,妈妈昨天 ...

  5. mysql实例的连接数max_user_connections 和max_connections 配置的那些事

    今天在查线上问题时,通过phpMyAdmin来进行DML操作,发现比平时慢多了,就各种进原因. 项目的场景是一个mysql实例中创建了多个数据库,猜想可能是相互影响所致. 然后,查询线上Mysql数据 ...

  6. mongodb之配置

    前言 最新版本支持yaml格式的配置文件,只支持空格,不能使用tab 详细配置说明 #系统日志配置 systemLog: destination: file path: /var/log/mongod ...

  7. posix线程库1

    posix线程库重要的程度不言而喻,这些天学习这个,参考 https://www.ibm.com/developerworks/cn/linux/thread/posix_thread1/   首先先 ...

  8. HDU 4598

    这道题其实不需要考虑具体数值,但可以肯定的是,相连边的两端点必定有一正一负,至于谁正谁负,并不重要,这是可以思考的,很明显的一个二分图性质,如果不满足此条件,是不可能满足题目第二个条件的.所以首先对题 ...

  9. linux面试之--堆、栈、自由存储区、全局/静态存储区和常量存储区

    栈,就是那些由编译器在须要的时候分配,在不须要的时候自己主动清除的变量的存储区.里面的变量一般是局部变量.函数參数等.在一个进程中.位于用户虚拟地址空间顶部的是用户栈,编译器用它来实现函数的调用.和堆 ...

  10. CF # 296 C Glass Carving (并查集 或者 multiset)

    C. Glass Carving time limit per test 2 seconds memory limit per test 256 megabytes input standard in ...