mapguide中文教程

mapguide中文教程内容摘要：

nt that the link is in. _self Loads the link into the same window in which the link was clicked. _top Loads the link into the full body of the window from which the link was clicked. Chapter Summary At the pletion of this chapter, you learned how to:  应用 MapGuide Viewer 的浏览功能。  在地图上生成缓冲区和报告。  应用 „Select Within‟ 功能进行 functional reports。  应用 Scale 和 Latamp。 Lon URL 参数用户化一个地图。  应用 URL 参数从地图上去除状态栏。  应用 URL 参数选择一个特征。 Chapter 3: Introduction to Autodesk MapGuide Author 本章将介绍 Autodesk MapGuide Author 应用程序，这在 Autodesk MapGuide 产品解决方案中是一个重要的组成部分。 应用 MapGuide Author 可以生成、编辑和管理地图窗口文件（ MWF）， MWF 文件是最终要放到 web 服务器的公共内容区域中，为了客户来浏览地图内容。 本章会把重点集中在如何生成一个新的地图窗口文件，并为此地图设置属性。 在后面几章中还会介绍如何向一个地图中增加图层。 Objectives After pleting this chapter, you will be able to:  理解 Author 在 Autodesk MapGuide 产品线中所能够实现的功能。  生成一个新的 MWF 文件。 Chapter 4: Working with Map Layers in Autodesk MapGuide Author 10  明确在地图窗口属性对话框中的组成成分和相关功能。  改变坐标投影系统。  保存一个 MWF 文件。 Chapter 4: Working with Map Layers in Autodesk MapGuide Author 11 Autodesk MapGuide Author 通过 MapGuide Author 可以生成 MWF 文件，它的界面 Autodesk MapGuide Viewer 的界面，然而具有更多的功能。 下表列出的是在 MapGuide Author 中的所有功能，但不包括 MapGuide Viewer 的功能。 可以配置一个附件来用户化报告、 Zoom Goto 和弹出菜单。 生成静态和动态地图图层。 在一个图层中用光栅目录文件生成多个光栅图像。 通过比例来控制地图图层的显示。 通过比例改变多个属性设置。 支持用户定义的符号和固定大小的符号 for both points and API。 设置自动标签特征 with overposting reconciliation。 ??? 远程编辑地图。 （例如打开地图： :\\maps\）。 配置多服务器 /多数据库连 接。 象征性地预览比例和图例。 通过图例进行 Web 预览。 对 MWF, 图层，和坐标数据进行安全控制。 可以生成永久的缓冲区图层。 打印预览 可以通过一个跟踪 ID来标记地图，为了将来的监视使用。 ??? Chapter 4: Working with Map Layers in Autodesk MapGuide Author 12 地图窗口属性结构 本章会主要介绍地图窗口属性（ Map Window Properties ）对话框中的 General 和 Coordinate System 选项卡，并对其他的选项卡做一简短介绍，详细内容在第 5 章中介绍。 可以通过弹出菜单和工具栏按钮来打开地图窗口属性对 话框，如图。 Figure : Popup menu amp。 toolbar button to access Map Window Properties Web 预览 图层列表 设计视图 工具栏 报告配置 Configuration Zo m Goto 配置Configuration 弹出菜单配置 地图 Chapter 4: Working with Map Layers in Autodesk MapGuide Author 13 General 在 General 选项卡中（图 ）可以为一个地图命名，设置整体的背景颜色，加载符号，并设置地图的中心和尺寸。 Figure : General tab of the Map Window Properties dialog box While naming a map or changing the background color might be selfexplanatory, the Take Center And Size From Current Zoom function might not be. In order to begin the process of creating a map for an application, you typically start by defining the maximum extents of the map. Then you can determine map layer properties for additional levels of specificity. By zooming into a country so that its geographic boundaries are within the view of the Autodesk MapGuide Author window, you can use Take Center And Size From Current Zoom to center the map within that window. This map is the base on which additional map layers are transposed and overlaid. Coordinate System The Coordinate System tab enables you to specify or change a map39。 s coordinate system (Figure ). Chapter 4: Working with Map Layers in Autodesk MapGuide Author 14 Figure : Coordinate System tab of the Map Window Properties dialog box A global coordinate system is a description of the origin of a map, the projection system used, and the units being used. It describes how the sphere of the earth is projected onto a flat plane and converted to the Cartesian coordinate system. The following options should be considered when selecting a coordinate system for your maps: IV. Use the same coordinate system as the other staff in the anization. V. Use the same coordinate system as the most mon data source. VI. Use the same coordinate system used by people sharing the same data. the area is small, use the same coordinate system as the local city or county government. If the area is large, use the same system as the state, regional, provincial, or national mapping group. surveyors, cartographers, consultants, and other mapping professionals for suggestions. Note that Raster images will usually be georeferenced to a specific coordinate projection. Map makers have to cope with the problem of taking lines that appear straight on the earth39。 s curved surface and drawing them on a flat map. Map projections refer to the techniques cartographers and mathematicians have devised over the centuries to depict all or part of a threedimensional, roughly spherical surface (like the earth) on a twodimensional, flat surface (like this page) with minimal distortion. Traditionally, cartographers did not routinely change from one projection to another, largely because of the plex mathematical calculations required. However, with the advent of digital mapping, changing projections has bee both essential and easier. It is important to annotate all maps with the projection and related parameters of a digitized map. This information is required for calculations with global coordinate systems. Chapter 4: Working with Map Layers in Autodesk MapGuide Author 15 NOTE: Changing a map‟s coordinate system only affects how the map is presented to the client. The source data in the SDF files on the Autodesk MapGuide Server must remain in generic decimal Lat/Long coordinates or conform to the predominant projection. The following Map Window Properties dialog box tabs will be discussed in Chapter 5: Reports The Reports tab enables you to create, change or provide access to dynamic reports. Zoom Goto The Zoom Goto tab enables you to specify direct zooming to a selected location on the map. Popup Menu The Popup Menu tab enables you to create or change the popup menu. Popup menus appear in Autodesk MapGuide Viewer map window when you rightclick over the map. Security The Security tab allows you to implement windowbased password protection for a map. A word of caution here: MWF passwords can not be overridden. Should you fet the password embedded in an MWF file,。