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Clash Detection

Use this tool to check for clashes between geometric objects in the model(s).

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Last updated 19 days ago

  1. Under the Analyse icon, click the Clash Detection button

  2. Select a first set of objects to scan. The can be used to set up a structured set of products. The selected objects will be highlighted in green.

  3. (optional) Select a second set of objects to scan. The selected objects will be highlighted in blue.

If only 1 set is selected, this set will be clashed against itself, i.e. every product in the set will be checked against every other product in that set. If 2 sets are selected, both sets will be clashed against each other, i.e. every product in set 1 will be checked against every product in set 2.

  1. (optional) Enable the 'Detect soft clashes' toggle, and fill in a distance. Fill in a positive value to find all instances where two objects are closer to each other than the given distance, for example to check if the clearance between two objects is large enough. Fill in no value if you want to find all instances where two objects are perfectly touching (i.e. the distances between the two objects is 0).

  2. Click Apply. A notification will pop up, informing you that the clash detection has started in the background.

  3. Once the clash check has finished, you will be notified by a notification in the top-right corner of your screen. If clashes were found, they will be grouped in clash groups: hard clashes (objects overlapping) and soft clashes (objects closer to each other than the specified value).

  4. Click one of the clash results. Depending on the type of clash, a different visualization will be used:

    Note: if one product clashes with multiple products of the same IFC class, these clash results will be grouped together in one single clash, in the assumption that these problems will likely need to be resolved simultaneously.

hard clashes: the two involved products will be colored in green and blue, and the overlapping volume will be displayed in red:

soft clashes: the two involved products will be colored in green and blue, and the shortest distance between the two products will be indicated with a blue line:

(optional) Resolve the clashes, or create issues from them by clicking the hand icon in the clash result notification, see .

Issues Panel
Browse Panel