Clash detection is started from the Analyze tab. It will open the following dialog:
If a group has subgroups, clash value and tolerance propagate to subgroups when the main group has value and tolerance set and a subgroup has empty values.The Calculate button will start clash calculation. As result of calculation, all clashes are shown in marked red in the model and a new Clash Results panel opens with a list of all the clashes found in the model.
- Id = clash ID
- The groups between which the clash was detected
- Clash type
- clearance = the geometry is within clearance distance from other geometry
- Size = clash size
- Value = the sum of values between clashing element groups
- Tolerance % = when objects are not clashing physically (hard clash) but they are clashing within tolerances, clash results will show it as a soft clash with distance and tolerance % how much tolerances overlap
- Risk value = Value * Tolerance%
- Old – detected previously but not detected anymore
- Resolution: for each clash a resolution type can be selected:
- Comment = a free field for comments
Results can be sorted by any column.
Columns can be filtered (by right-clicking) Group A, Group B, Clash Type, Comment by free search and the columns Size, Value, Tolerance – by >, < or =.
Comment columns allows to filter by comment:
Tolerance column allows to filter by Filter probability:
Risk values allows to set new filter under filter risk:
You can filter the columns Status and Resolution:
The Clash Results taskbar
Delete selected clash
Create a topic from a clash – the topic description will be record groups names, value, size and comments.
The Show only selected groups option will turn all other groups off when showing clash calculation results and show only groups specific to the clash. This will make it easier to see where the clashes are and find, for example, clashes that are underground.
When Show only selected groups is on, Create Topic saves the group state that is currently on that is specific to the clashes.