This article describes the object association feature of folders. Typically, this feature is applied to the telecommunications industry.

When telecommunications and power companies install utility poles (placemarks in QubiMap), they want the aerial cables (tracks in QubiMap) attached to them to move along with the poles. This greatly simplifies cable routing in design. To meet this need, QubiMap provides the folder object association feature, which allows tracks (cables) to move along with placemarks (poles).

For example, there are 5 fiber optic cables attached to 100 utility poles. You can create 100 placemarks on the map in QubiMap to indicate the poles, and enable Editable State for these placemarks. Then, use the placemarks to generate 5 tracks, which indicates the 5 cables. Add the 100 placemarks and 5 tracks to the same folder, and select [Object Association] in the folder settings. Now, when you move any placemark (pole) on the map, the tracks (cables) also moves with the placemark.

In real scenarios, there may be tens of thousands of placemarks (utility poles) and hundreds or thousands of tracks (fiber optic cables), which are already distributed across different folders. You may find it difficult to put the related utility poles and fiber optic cables in the same folder. To solve this issue, you can use the parent folder and subfolders. Set [Object Association] for the parent folder and the required subfolders. For example, the A folder contains 1000 utility poles, the B folder contains 10 fiber optic cables that are related to A, and the C folder contains 20 fiber optic cables that are unrelated to A, and A, B, and C are all in the D folder. To associate A with B, you need to set [Object Association] for the D, A, and B folders. Now, when you move a utility pole in the A folder, the corresponding fiber optic cables in the B folder automatically moves with it, while the C folder remains unaffected.