ria与geo web连横共进

• RIA和GeoWeb• GeoWeb架构• Rich GeoWeb Viewer• 设计原则• 架构设计• Flex，JavaScrip和Silverlight• 演示

• 2002年Macromedia首先启用RIA一词• 随后Macromedia发布Flash Remoting，开始真正的RIA应用

• 2005年Adobe收购Macromedia，RIA快速成长

• RIA简单定义：–互联网应用程序–提供类似桌面系统的实用性及多媒体化

• AJAX• Adobe Flash/Flex/AIR• Microsoft Silverlight• Sun JavaFX (?)• Firefox 3 (Prism, Tamarin,

IronMonky)• Google (Gear, GWT, Chrome, etc.)

HTML HTML httpRequest Java Applet Flex AIR DHML Flash Firefox Java Java Web Start Remoting Scripting ActiveX Silverlight WPF .Net JavaScript JavaFX Google GWT Gear

开放基于各种标准广泛有浏览器就能使用

没累赘只有网页，没有程序装载

发布一切都在网络服务器上操作

富使用感受类似桌面系统的界面，多媒体，全进程

应用程序

本地处理和集成快速，高性能，利用本地资源

界面工具强大多样的界面开发工具，方便快捷程

序开发

下线功能不需要随时在线

• Geospatial Web – 1994年，Dr. Charles Herring，《An Architecture of Cyberspace: Spatialization of the Internet》， Army Construction Engineering Research Laboratory

• 网络化数字地图奠定GeoWeb基础• 网络数字地图≠GeoWeb

支持

• 协作式计算• 服务集成 (Mashups)• 用户提供内容Distributed Data Management

多元参与

• 互联• 合作• 集成Dynamic

分布式协作

Web 2.0

Web 1.0

GeoWeb

移动互联网

GDB

桌面

应用

服务器

服务与Geospatial数据管理

地图三维图像化Geoprocessing数据管理

开放式APIs

OGCKML

SOAPSQL

ArcGIS

PublishingServices

服务提供者

S1

S2

S3

Sn

S2 +

S3

S1

Mashups

外部服务资源

S1

移动通讯

S1 S3

企业信息系统

• 仅用数字地图显示地标不足以解决问题–需要基于地图的互动–需要以简捷方式释放大量含空间信息的数据–需要以空间图像化来表达被处理的空间信息–需要用基于地点的服务来提高决策机能

• Rich GeoWeb Viewer提供一个窗口来满足这些需求

ArcGIS

发布的服务

服务提供者

S1

S2

S3

Sn

S3

S1

Mashups

外部服务资源

移动通讯

S1 S3

企业信息系统

Rich GeoWeb Viewer

“Everything should be made as simple as possible, but not simpler.”- Albert Einstein

“Simplify, and add lightness”- Colin Chapman

YAGNI (You arent Gana Need It) – “Always implement things when you actually need them, never when you just foresee that you need them.”- Ron Jeffries

DRY (Dont Repeat Yourself, aka Single Point of Truth)

• 复合式体系架构 (composite architecture)• 可扩充性 (extendable)• 可配制性 (configurable)• 内部模块可替换性(swappable) • 品牌化 (brandable)• 开放与服务性 (open and service centric)• 支持多种RIA技术 (RIA technology neutral)

• 一个widget是一个单独部署的文件• 一个widget包含特定的业务逻辑• 一个widget是通过配置文件来部署• 一组widget可代表一套业务解决方按• 可通过调整widget来扩充解决方按，而不是经过再编程以至增加系统的复杂性

• Widget的开发远比整个系统开发容易

• 用户界面• 基本地图(base map)• 基于地图的服务ＵRL• 装备部署的widget• Widget自身配置–数据源ＵRL–数据过滤

• 个性化改变–配置文件–图标icons– stylesheet

• 改头换面–Widget模版– Viewer嵌入–替换核心模块

1. <?xml version="1.0" encoding="utf-8"?>

2. <BaseWidget3. xmlns="com.esri.solutions.flexviewer.*"

4. xmlns:mx=http://www.adobe.com/2006/mxml>

5.

6. <WidgetTemplate>7. <!– Hello, World! -->

8.

9. </WidgetTeamplate>10.

11. </BaseWidget>

• 将新widget加入配置文件

<widgets> <widget title =“My First Widget” icon =“aicon.png” menu =“menuWidgets” config =“MyFirstWidget.xml” > MyFirstWidget.swf </widget><widgets>

Widget JavaScript 程序文件代码

1. dojo.provide("com.xyz.widgets.ANewWidget");2. dojo.require("com.esri.solutions.jsviewer._BaseWidget");

3. dojo.declare(

4. "com.xyz.widgets.AnewWidget",

5. com.esri.solutions.jsviewer._BaseWidget,

6. {

7. // DemoWidget code goes here

8. _module: "com.xyz.widgets",

9. templatePath: dojo.moduleUrl("com.xyz.widgets", "templates/ANewWidget.html"),

10. hello: “hey there!”11. }

12. );

Widget HTML文件代码

1. <div class="widgetContent">• <div class = "widgetPanel"

• buttonIcon = "i_phone.png"

• buttonText = "Panel 1">

•

• <p><!– Hello, world! />

1. ${hello}• </p>

• </div>

• </div>

1. <slv:BaseWidget x:Class="ESRI.Solutions.SilverlightViewer.Widgets.AboutWidget"

• xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

• xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

• xmlns:slv="clr-namespace:ESRI.Solutions.SilverlightViewer;assembly=ESRI.Solutions.SilverlightViewer”>

•

• <slv:WidgetPanel>

• <slv:WidgetPanel.Content>

• <Grid>

• <StackPanel VerticalAlignment="Stretch">

• </StackPanel>

• </Grid>

• </slv:WidgetPanel.Content>

• </slv:WidgetPanel>

• </slv:BaseWidget>

Stimulus Reporting

$40,000 $40,000 $40,000$40,000 $40,000

$40,000

$40,000

$40,000

$40,000

$400,000 $500,000

$2,000,000

$40,000

Housing:$ 2,000,000

Environment:$ 400,000Overall S:mulus

[Statewide]

Health Educa:on Transporta:on Energy Housing Workforce Public SafetyEnvironmentOverall S:mulus

STIMULUS PROJECTS NEAR ME: Address, Zip Code Click on icons to get more informa:on

Learn about our approach…

Stimulus Reporting

$40,000 $40,000 $40,000$40,000 $40,000

$40,000

$40,000

$40,000

$40,000

$400,000 $500,000

$2,000,000

$40,000

Overall S:mulus with Popula:on Density[Statewide]

LOW HIGH

Need Maps:

Popula:on Density Household Density Per capita income (1999)


STIMULUS PROJECTS NEAR ME: Address, Zip Code Click on icons to get more informa:on


123 Main St

Stimulus Reporting


STIMULUS PROJECTS NEAR ME: 123 Main Street Click on icons to get more informa:on

Overall S:mulus [Selected County]

Educa:on:$ 200,000

Environment:$ 100,000

$40,000

$500,000

Overall $ 1,100,000

Health $ 100,000

Educa:on $ 200,000

Transporta:on $ 150,000

Energy $ 150,000

Housing $ 100,000

Environment $ 100,000

Workforce $ 100,000

Public Safety $ 200,000


Stimulus Reporting

ABC Elem:$ 80,000

XYZ High:$ 40,000Public K‐12

[Selected County]Specific Projects

$25,000

$40,000

Overall $ 1,100,000

Educa:on $ 200,000

Public K‐12 $ 120,000

ABC Elem $ 80,000

XYZ High $ 40,000

ABC ElementaryFunding: $80,000Es:mated Comple:on: APR 2010




Stimulus Reporting

Educa:onwith Math Proficiency[Statewide]

DECLINE IMPROVE

Effects of S:mulus:

Math Proficiency Science Proficiency Reading Proficiency

$40,000 $40,000 $40,000$40,000 $40,000

$40,000

$40,000

$40,000

$400,000 $500,000

$2,000,000

$40,000



Math Proficiency X

2006 20072008


ria与geo web连横共进

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