Displaying an Oracle Spatial Layer in Load-On-Demand
In this section, you are going to load the same layer from the previous section, using the load-on-demand functionality.
1. Repeat steps 1 to 7 in the previous section.
2. In the Load-On-Demand page, select Load-on-demand and specify a tile size.
In this example, the WORLD layer has a coverage of 1 degree by 1 degree. You can use, for example, 500 km as a tile size.
3. The SDO Layer page lists all the available layers in your database. The layer name is composed of the name of the table containing the layer, a period ‘.’ and the name of the table column containing the geometry of data. In this example, you will see at least the layer named WORLD.GEOMETRY. Select this layer.
4. The Scale control page allows you to set scale visibility filters on the created layers. For this sample, you do not need to set scale visibility filters.
5. The Attribute page allows you to load the attributes associated with objects. When this is selected, all columns that are not of type geometry are attached as attributes to graphic objects already created. For more information, refer to the reference manual of the Oracle readers. For this sample, you do not need to load the object attributes.
6. After you have checked the options of the various pages, click the Create Layer button.
A layer containing the whole data has now been created.
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