The most common use case for this tool is as part of data imports from other sources, such as CSV or shape imports. The tool operates on a selection of candidate parent objects and a selection of candidate child objects. The types of objects for both categories are defined by the user, and the selection is made by placing a polygon on the map.
1.In the menu bar, select Tools > Create parent relations between line objects. A side panel opens.
2.In the drop-down lists, select Object type and optionally select Subtype.
3.Press Select components.
4.Place a polygon in the map to select all symbols representing the chosen types.
5.Fill in a Maximum distance (m) to set the tolerance for how close a parent and child object must be to establish a parent link between them, and press Match selected. A table opens. Depending on the status of the selected data, the table will have a set of tabs that may include:
oSelected parent objects without a matching child
oSelected child objects without a matching parent
oMatching objects already linked
oMatched objects
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Because a child candidate object can stretch over more than one parent candidate object, matching is done by comparing the line components of the objects. If a parent candidate object is entirely on top of the child candidate line (within the tolerance limit), the parent-child relation is created between them. Note that there may be additional parent candidate objects that fulfill that condition. |
6.In the tab for matched objects, press Create parent links to make the matched children objects a child to the parent.