MapViewer lets you define styles, themes, and base maps, including the rules for applying one or more styles to each theme. When the map is rendered, each theme represents a layer in the complete image. For example, a map might show national and state boundaries, cities, mountain ranges, rivers, and historic sites. A map typically has several themes representing political or physical entities, or both. For example, the application might display a map in which state parks appear in green and restaurants are marked by red stars. When an application uses MapViewer, it applies specific styles (such as colors and patterns) to specific themes (that is, collections of spatial features, such as cities, rivers, and highways) to render a map (such as a GIF image for display on a Web page). Section 2.8, 'Workspace Manager Support in MapViewer' This chapter contains the following major sections:

The map can be an image file, the object representation of an image file, or a URL referring to an image file. Mapping metadata consists of a repository of styles, themes, and base maps stored in a database.Ī map is one of the components that MapViewer creates in response to a map request. For example, a text style determines how such a feature is labeled on a map, while a line style determines the rendition of a linear feature such as a road.Ī theme is a collection of features (entities with spatial and nonspatial attributes) that are associated with styles through the use of styling rules.Ī base map consists of one or more themes. Styles define rendering properties for features that are associated with styles.

Some fundamental concepts include style, theme, base map, mapping metadata, and map.

This chapter explains concepts that you should be familiar with before using MapViewer.

Instaling Sticky Previews 2.8