Repeat, Mirror, Scaling and Shifting your structure
Repeat (copy) is an operation which allows you to select and repeat a portion of your structure. This feature is useful when you have a structure (e.g. a warehouse) that is mostly made up of repeated structures (e.g. portal frames).
Example: Modelling a warehouse with repeated portal frames
In this example, we will model a warehouse that is made up of 3 repeated portal frames. The first portal frame has already been modelled.
You can also tick the box Connect nodes with members to join the nodes with members. Alternatively, you can leave this option un ticked and manually connect the members based on your needs:
Mirroring is different to repeating, because it will also flip the structure. Start by selecting the part of the structure you wish to mirror, and selecting Edit -> Operations -> Mirror:
The following popup will then show with the following two options:
- Mirror Plane – Which plane are you mirroring. Picture it as an actual mirror, what plane would this lie on? In our example, we want to mirror our warehouse through the YZ plane.
- Mirror Plane Location – in our model, the middle nodes are 9.754m. Since we want the other side of the structure to start at this location, we will mirror as per this point.
Tip: If you make a mistake, remember you can always Undo (CTRL + Z) and try again.
Finally, we should get the following result, with the model flipped identically about the x = 9.754m axis:
Sometimes when building your structure, you might want to shift a batch of columns or members over by some distance. For instance, if we want to shift these columns over by 10m, we could use the Shifting Nodes operation, by start highlighting what nodes you want to shit (here we used the up-left CTRL drag to select only the members and nodes on the right side):
As we want to shift the nodes along the x axis only, by 10m: