Layer, Style and theme in the Oracle Folder Viewer

This paper discusses Oracle Application Folder Viewer, an application that can present information obtained from data to then be shown on the map spatial to produce information that is more descriptive. Oracle Folder Viewer has five kinds of layers that make up the map as a whole, i.e. the basic layer map (Map Tile Layer (s)), Theme-Based FOI Layer (s), user-defined FOI or Redline Layer (s), window information (Information Window Layer), and Fixed Line Layer.

Oracle Folder Viewer is a middleware that is used to display information that is connected with maps and spatial data. This application is able to represent a collection of data stored in the database into a display that is easy to understand because it is integrated with the map. When an application uses the MapViewer, then on the application applies a certain style (such as color and pattern) with specific themes (i.e., a collection of spatial features, such as cities, rivers, and highways) to create a map (such as a GIF image for display on a Web page). For example, in the application may display a map of where the National Park appear in green and marked with a red star. A map typically has several themes that represent physical or political entity, or both. For example, maps may show the boundaries of a country, province, city, mountains, rivers, and historic sites. When the map has undergone a process of rendering, each theme will be represented in a single layer on an image map.

MapViewer lets you specify the style, theme, and a map of the base, including a rule to apply one or more of the style for each theme. Style, themes, maps of the base, and the associated rules are stored in the database in the table definition of the map under the MDSYS schemes, and they are visible to you through the view metadata. All the style in the example.

the database is owned by all users. Metadata mapping (sets of style, theme, and the base map) you can access is determined by the view metadata MapViewer (for example, USER_SDO_STYLES, USER_SDO_THEMES, and USER_SDO_MAPS). The set of definitions of the object map where certain users can access commonly referred to as the profile of the user mapping. You can also set the style, themes, and map basis independently with Folder tool Builder.

An Oracle Application Maps having at least one layer of a basic map, composed and displayed on the basic image map before tergenerate from server map basis. The basic layer of the map display map static content which is not too often change, and the layer is usually used as a background map on the client application. For example, illustrated in the figure on the side, the sea, the boundaries of the County, city, and highways are all displayed as a basic layer of the map. Only a limited user interaction, such as a drag on the map, it can be done on the basis of the layer map.

with the image cache base map produced by the external map provider (non-MapViewer). Oracle Maps Client can also display basic layer-built externally generated directly by an external server, such as a built-in Google Maps and Microsoft's Bing Maps based layer. The base map layer is always placed at the bottom of the layer hierarchy. This layer displays a static background and content of the map. When several layers are included, they must all have the same coordinate system and the definition of the level of zoom. Internally, the basic map layers are usually larger than the size of the map DIV container window. This allows the basic layer will be captured and temporarily stored by the browser. As a result, this basic layer will be immediately visible when map layers dragged play by users.

Layer, Style and theme is part of the important concept of Oracle Application Maps Viewer. By studying the parts layer on Oracle Maps Viewer, you can better understand the composition as well as the existing content on the display of a map. By knowing the characteristics of each style, You will be able to use them appropriately in the map display you bunk. While the Theme is often synergize with the styling of form one unity of appearance that can support a detail map look more maximum. Required references more peeling's details application such as Oracle Maps Viewer so that the user can use it in more.

Related Posts:

Tweet