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Libraries are used to store symbols that can be used for lithologies, sample type, and wells. Sample type and well symbol libraries cannot normally be edited and are not dealt with in this chapter. An exception to this is the symbol libraries used for seals and packing in Well Type 3 columns. These symbols are from lithologic libraries, which are discussed in this chapter.
Lithologic libraries contain 18 symbols each. WinLoG comes with several previously defined libraries. In addition, any number of new libraries can be created, making the number of lithologic symbols available unlimited.
Each symbol also has a default symbol description stored in the library, which is used when creating legends. When a legend is created the default description will be used for the symbol description in the legend. If this description is then edited in the legend, the new description will only appear in that legend. The new description in the legend will not replace the default description in the library. To change the default description the description must be changed in the library as discussed below. However, the actual symbols are the same in the legend as in the library and if edited in the legend the symbols in the library will change as well.
Libraries are stored in the master project database so that they are accessible by all programs. The format of the master database is Microsoft Access 2000. This database is stored in the Main Database Directory. For a detailed discussion of the database structure, see .
This section describes how to:
These tasks can be performed using menu commands on the File menu and Edit menus or speed buttons on the Library toolbar, shown below.