Description

Within the Merge Pairs of Entities frame you can specify a tolerance and the types of grid entities you would like to merge with that tolerance. Pointwise will then present a list of candidate entities that fall within that tolerance. You can then pick from the list the entities you wish to merge.

Merge Pairs of Entities provides interactive selection of entities to be merged.
Merge Pairs of Entities provides interactive selection of entities to be merged.
  • Tolerance: Is the distance within which to check for merge candidates. If two entities are within the tolerance distance of each other, they are added to the list of candidates to be merged
  • Connector-Connector: Allows you to select pairs of dimensioned connectors to be merged together into a single connector. This merging is not topological; one of the connectors is replaced with the other. Merging connectors is good for removing coincident connectors from your grid. This command does not alter the connector tolerance in the File, Properties panel. If the two connectors have the same dimension, Pointwise compares corresponding grid points on the two connectors.
    If the maximum distance between grid points is less than the tolerance you entered, the connector pair becomes a candidate for merging. If the two connectors have different dimensions Pointwise compares a small sampling of the grid points on one connector to the shape of the other connector and vice versa. If the maximum distance computed between the two connectors is less than the tolerance you entered the connector pair becomes a candidate for merging. After all the comparisons are complete Pointwise lists in the Merge command panel all candidate connector pairs.
  • Node-Node: Allows you to select node pairs to be merged into a single (x,y,z) point. It is important to note that this merging is not a topological merging. Nor does this command alter the Node tolerance in the File, Properties panel. Rather, this command alters the physical location of one of the nodes of the selected pair to match the coordinates of the other node. If one or both of the nodes are database constrained a branch segment is added.
  • Node-Connector: Combines the Node-Node functionality with a preprocessing step that splits overlapping connectors.

Demonstration

Merging Connectors

Fault Tolerant Meshing Using Grid Merge