Multi-Copy with Secondary Structure is used to make multiple copies of two separate structures along two individual tracks. Select ‘Structure Multi-Copy’ from the Linear Draft toolbar, follow the prompt to select a structure.
Once you have selected a structure to copy, the ‘Copy Structure’ form will appear.
Enter a number in the 'Count' field of how times you want to copy the structure, define the span length (in metres) between the structures and choose the structure name increments.
N.B. When inputting span length, you can determine which direction to place the structures along the track. A positive figure will place the structures up-track when viewing in a forward direction, whereas a negative figure will place the structures down-track in a forward facing direction.
To maintain relative foundation height, copy all wires, alternate stagger, copy all equipment and alternate between push off and pull you will need to check each of the respective boxes. The checkboxes are not required to be ticked. Choosing not to copy wires will copy the structure only.
When editing the fields on the 'Copy Structure' form, a marker preview of the proposed copy locations will be displayed (see below).
If there is no requirement to multi-copy a secondary structure, click 'Confirm'.
To copy a second structure along a 2nd track, with the defined values set from the process above, click 'Select' in the 'Secondary Structure' section of the form.
Follow the prompt in the bottom left of the screen.
Select the structure opposite to the one you have already chosen to multi-copy. 'Secondary Structure' will change from 'None Selected' to the structure that you have chosen (see below).
N.B. Preview markers will NOT appear along the second track.
Once you have defined all elements click ‘Confirm’ to accept.
The 'Structure Multi-Copy will now copy both structures. All wires and equipment specific to each structure will also be copied.
The span length will be applied exactly to the primary structure (the structure chosen for the initial multi-copy) and the secondary structures will be kept directly opposite. Therefore, the span length on the secondary structures may differ slightly (e.g. if the copy is on a curve).
N.B. If you are working with a referenced track file that is made up of broken lines, the multi-copy function will only create structures up to the end of the section of track that you are working on. Also, if the track for the primary structure extends further than the second track, then you will find that the structure(s) at the end of the second track will not be created as there are no tracks to place the structures on.
Once the structures have been confirmed, you can then edit each individual structure using the ‘Structure Adjust’ function to define any specific requirements.