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. hdu6096 String

    String Time Limit: 6000/3000 MS (Java/Others) Memory Limit: 524288/524288 K (Java/Others) Problem De ...

  2. hdu_1040_As Easy As A+B_201308191751

    As Easy As A+B Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)To ...

  3. SpringBoot 注册拦截器方式及拦截器如何获取spring bean实例

    SpringBoot 注册拦截器时,如果用New对象的方式的话,如下: private void addTokenForMallInterceptor(InterceptorRegistry regi ...

  4. Linux环境变量设置中配置文件分析(/etc/profile,~/.bashrc等)(转)

    说明:在研究中发现,对于不同版本的Linux系统有着不同的文件,但是总的入口是不变的/etc/profile,下面只是展示加载顺序的研究过程,所以会有些系统没有这个文件等问题. 一.配置文件与作用域: ...

  5. 在win10下改变默认的输入法切换Ctrl+Space

    在win10下改变默认的输入法切换Ctrl+Space 学习了:https://www.zhihu.com/question/22288432 在win10下面,有两种风格的控制面板设置: 在输入法上 ...

  6. Linux模块化机制和module_init

    致谢: 微信公众号:嵌入式企鹅圈 每天都新增爱好者关注,感谢大家的支持和大牛们的建议. 本人将竭力出品很多其它优质的原创文章回馈大家的厚爱. 引子:模块化机制长处 模块化机制(module)是Linu ...

  7. Oracle批量恢复drop操作删除的表、索引等对象

    /**********************************************************************查询Drop操作删除的对象select * from re ...

  8. Codeforces Round #306 (Div. 2) A

    题意 给一个字符串(长度<=10^5).问当中有没有一个"BA"和一个"AB"呢?假设都有而且它们不反复(即ABA不算),输出YES.否则输出NO. 思路 ...

  9. IOS7中动态计算UILable的高度

    .h文件 #import <UIKit/UIKit.h> @interface UILabel (ContentSize) - (CGSize)contentSize; @end .m文件 ...

  10. Android 系统开机logo的修改【转】

    本文转载自:http://blog.csdn.net/yandongqiangZHRJ/article/details/8585273 看到了好几个修改logo的博文,但是说的不是很清楚,在这里亲手送 ...