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The LRSs pane shows the base reference system (as denoted by a shadow check mark in the Basic LRS? column) along with a record for each alternate location reference systemmethod (LRM). The text entered in the Loc Ref Name column in the LRSs pane is what will appear in the drop-down list in the Location Reference field on the side of the browser window.
Each reference system is assigned a type in the LRS Type column, with the type being selected from a drop-down list. The list provides the following selections:
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When you right-click an alternate reference system LRMs in the upper pane, the system displays the following special command in a shortcut menu:
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- Column ID: This column shows the internal column ID used in the system.
- Column ID "To": This column shows the internal column ID used in the system. The contents of this field are not used if the Show "To" check box is clear.
- Column Label: This columns shows the column heading label that appears for the column throughout the system.
- Column Label "To": This column shows the column heading label that appears for this column throughout the system. The contents of this field are not used if the Show "To" check box is clear.
- Hidden: When this check box is selected, the column will not be displayed.
- Initial Value: If a value appears in this column, then the value will be automatically set to any record that is location-referenced when it is inserted into the system.
- LRS Column Type: This column indicates whether the column is the "location measure" column. In defining an alternate reference systemLRMs, one and only one column must be set as the "location measure"; all other columns must be set as "location attribute".
- Order: This column indicates the order (left to right) in which the columns are seen in data windows throughout the system.
Show "To"?: If the check box in this column is checked, then this LRM field will be shown twice in any location-referenced window when an alternate LRM is selected. It is shown once for the "from" point and then again for the "to" point. If clear, then the LRM field appears once and applies to both "from" and "to" points.
Note Note: This column must be checked for the column designated "location measure."