OpenCities Map CONNECT Edition Help

Find Dangles

Used to find elements with dangling, or overshooting endpoints. A dangle occurs when the endpoint of an element is not connected to another element. When creating area topology, linear elements with dangling endpoints can cause problems and should therefore be removed. Dangles can be created during the digitizing process as well as during segmentation.

Setting Description
Mode Determines how dangles are handled.
  • Flag - Places a circle flag on all dangling endpoints. When Use Tolerance is enabled, elements longer than the tolerance will be excluded.
  • Delete - Deletes elements with at least one dangling endpoint. When Use Tolerance is enabled, elements longer than the tolerance will be excluded.
Tolerance Defines the maximum length for an element to be considered a dangle.
Write Flags When turned on, flags are written to the file, otherwise they are display only.
Level Sets the target level of the flags.
Color Sets the target level of the flags.
Weight Sets the target weight of the flags.
Flag Radius Determines the size of the circular flags placed at boundary endpoints within the gap tolerance of other element endpoints.

To Find Dangles:

  1. Place a fence around the target linework.
  2. Select the Find Dangles tool.
  3. Select a Mode type.
  4. Set Tolerance and Flag settings as appropriate.
  5. Initiate the processing with a data point.
  6. Review the content of the Results dialog.
  7. The results can be saved or appended to a text file by selecting the appropriate option from the Results dialog File menu.

Key-in: FIND DANGLES