彩票走势图

为了让用户更好的分析DbMAP Web 3D的工作机理，以及如何使用其方法以便更容易得整合在Web-GIS系统环境中，我们提供了详细的解述，如下所示：

• DbMAP Web 3D Builder, 是用于构建三维数据模型的必要工具，它从不同格式的DTM文件中获取数据，最终生成的数据信息将直接提供给客户端组件DbMAP Web 3D Flyer。

• DbMAP Web 3D Runtime Server, 服务器端组件，用于提供所有查询信息层中的文本信息和编码系统的数据属性的功能，为DbMAP ASJ Runtime Server提供功能服务。

• DbMAP Web 3D Flyer, 该客户端组件将插入在网页文件中，在DbMAP Web 3D Runtime Server服务器发送二维地理信息数据时运行，并可以从三维地理信息数据中提取为二维数据。

图一演示了DbMAP Web 3D整合在DbMAP ASJ中进行数据和程序的交互运行的情况，以下是一些DbMAP ASJ模型的摘要描述。

• DbMAP Developer Kit, 软件开发工具包（SDK），提供了在多种平台下的软件开发方案，所开发的软件可以提供聚存于地理信息系统数据库的数据信息与巨大的网络环境的交互作用方案，SDK同样具备在同类开发工具上管理程序开发进程的优势，提供了OCX, ActiveX 和Java components和 Java applets供用户使用.

• DbMAP ASJ Runtime Server, 一个非常强大的服务器组件，用于提供地图和图像信息的服务（支持多种数据），因此无论数据库是否包含在内或者数据信息是位图还是矢量文件（ECW, TIFF 和 DWG），用户可以直接与GIS数据源建立连接并发布.

• DbMAP Data Manager, 与选定的数据库建立连接，用于导出和导入Shape文件，并可用于创建和导入可扩展形状的背景图像.

技术特点
该系统的主要特点是:

• 符合GIS扩展协议:OGC (Open GIS Consortium);

• 基于GIS -Web服务计划,版本为：1.1.1;

• 兼容绝大多数的常规操作系统。(Windows, MacOS, Linux)：

• DbMAP ASJ web组件可用于任意的网页浏览器，无需安装或者插件要求，仅需JAVA 1.1虚拟机（或者更高版本）;

• DbMAP Web 3D用户端要求安装有Macromedia Shockwave Player;

• 服务器版本要求Javs1.4（或者更高版本），兼容绝大多数常规的网络服务器和装有Java/J2EE 的服务器，比如Oracle AS, Apache Tomcat, IBM Websphere等.

In order to let users better analyse how DbMAP Web 3D works and how its models easily integrate in a Web-GIS architecture, a detailed description follows.

• DbMAP Web 3D Builder, the necessary tool to build a set of 3D data, starting from DTM files of various formats. The obtained dataset will be directly available for DbMAP Web 3D Flyer, the client component;
• DbMAP Web 3D Runtime Server, the server component, providing all the functionalities to find the textures and the alphanumerical data proper of the informative layers, taking advantage of DbMAP ASJ Runtime Server services;
• DbMAP Web 3D Flyer, the client component to be inserted on a web page, works out in real time the bidimensional data coming from DbMAP Web 3D Runtime Server and those deriving from the tridimensional dataset;

Picture 1 illustrates how DbMAP Web 3D integrates with DbMAP ASJ ‘s architecture, maintaining interoperability among data and applications. Here follows a brief description of DbMAP ASJ models:

• DbMAP Developer Kit, SDK providing a multi-platform solution for the development of GIS applications interacting with a centralised geographic database accessible via web and taking advantage of the same development environments already used for managing applications. OCX, ActiveX and Java components and Java applets are available.
• DbMAP ASJ Runtime Server, an extremely powerful server component offering Map and Image Server services (multi-source data), which allows to directly access to the GIS data sources to publish, whichever database they are contained in and whichever format the raster and vectorial files (ECW, TIFF and DWG) one has to manage.
• DbMAP Data Manager, connecting with the chosen centralised database to import and export Shape files and to create and import of the background images extension shape.

Technical features
Among the main technical features of the system are:

• Conformity with OGC (Open GIS Consortium) requisites;
• OpenGIS Web Map Service Implementation Specification, Version 1.1.1;
• Compatibility with all the most common operative systems (Windows, MacOS, Linux);
• DbMAP ASJ web components are usable with any internet browser; no installation or additional plug-in required; Java 1.1 virtual machine(or later) is enough;
• DbMAP Web 3D client component requires Macromedia Shockwave Player;
• Server components require Java 1.4 (or later) and are compatible with the most common web servers and Java/J2EE containers like Oracle AS, Apache Tomcat, IBM Websphere, etc.