Line Placement in Event Design App fills a route you draw with copies of one catalog item — a backdrop, barricade or stanchion — spaced the way you choose. Pick a model, click a start and end point in top view, then right-click to finish; Undo reverses the whole run in one step.
Scope: you draw the line in top view. Catalog models marked Available on Plus or Pro can only be used on Plus and Pro plans, and doors, windows and venue models are not offered in this tool.
A backdrop run, a barricade line or a row of stanchions (posts and ropes, or a fence line) is the same object repeated dozens of times, and placing each one by hand never lines up. Line Placement fills a route you draw with copies (duplicates) of one catalog item, spaced the way you choose.
📺 Place Repeated Objects Along a Line or Path — the full lesson, including the wrong-axis fix.
Line Placement starts from the bottom toolbar.
In the bottom toolbar, choose Line placement.
Search for a model (try "Portable backdrop"), or filter by Category, and click its card. Selected model shows your choice. Start line placement stays disabled until you've picked one.
Choose Show advanced to set Offset, Placement angle and Base axis (explained below). The defaults work for a first test.
Choose Start line placement.
Switch to top view. Click a starting point, then click the end of the line.
Wait for the model preview to load, then right-click to finish. The blue guide disappears and the new objects are selected.
[SCREENSHOT 1 — Line Placement dialog with a backdrop selected and Show advanced open]
Undo reverses the whole run in one step, so test freely. Do your first tries in a separate practice plan: you can compare short runs and undo them without touching a real design.
⚠ Right-click is what finishes the run. If nothing seems to happen after your second click, you haven't finished yet.
Doors, windows and venue shells don't appear in this tool. Items marked Available on Plus or Pro need a paid plan.
Line Placement has three advanced settings (the spacing, direction and rotation of each copy), found under Show advanced.
Offset (labeled Offset (ft) or Offset (m)) is the gap added between copies, depending on your plan units. It defaults to 1. It is not the object's total width. Zero offset puts copies edge to edge.
Base axis picks which dimension of the model is its "length" along the route. Choices: Auto (from bounds), X axis, Z axis. This also decides how many copies fit, because the axis sets the repeat distance.
Placement angle (labeled Placement angle (deg)) turns each copy by the number of degrees you enter. Zero is the model's natural direction.
💡 Change one setting at a time. Draw the same short test line after every change, and undo between them. It's the only way to see which setting did what.
A portable backdrop is long and shallow, which makes axis mistakes easy to spot.
Settings | Result on the same short line |
|---|---|
Offset 1, angle 0, Auto | Three panels along the line, small gaps between them |
Offset 1, angle 0, Z axis | Panels run across the route instead of along it, and the count changes |
Offset 1, angle 0, X axis | Three panels along the line again (Auto gave the same result for this model) |
Offset 0, X axis, angle 0 | Gaps close; panels meet as one continuous fabric run |
Offset 0, X axis, angle 90 | Panels turn across the route; the repeat interval still follows the axis |
For this backdrop the settings to keep are Offset 0, X axis, Placement angle 0. Other models can differ, so test with yours.
Inspect in perspective as well as top view. Top view shows alignment. Perspective shows which way the panels face and what the joins look like. Check the first panel, every join, and the last panel. Also look at the support bases at the joins, because zero offset doesn't guarantee they don't collide.
[SCREENSHOT 2 — Z axis result (panels across the route) beside the X axis result]
Line Placement accepts a path with more than one segment: click the start, click each turning point, then the end, then right-click. Panels follow both directions, but a gap stays at a sharp turn. Zero offset closes straight joins, not corners.
A corner is easier as two straight runs:
Place the first run with offset 0, X axis, angle 0 (in the lesson it's two panels).
Start a second line placement with the same settings (offset 0, X axis, angle 0).
Start the second line at the edge of the first run's last panel, and draw it. In the lesson it's three panels.
Review the corner, every join, and both outer ends in top view and perspective.
That gives a clean L-shaped backdrop with no gap at the corner.
Save the plan after checking the whole route, return to the project, reopen it, and wait for models and textures to load. Refresh once more. In the lesson all five backdrops stay in the same two-run arrangement, corner included.
My panels run across the line instead of along it. The Base axis is wrong for this model. Undo, reopen Line placement, and try the other axis. Z and X give opposite results on a long, shallow object.
There are gaps between my panels. Offset defaults to 1. Set it to 0 for a continuous run.
The number of panels changed when I changed the axis. Expected. The repeat distance comes from the model's size along the chosen axis.
There's a gap at the corner. Zero offset doesn't fix turns. Use two straight runs that meet at the corner.
The Start line placement button is greyed out. No model is selected, so Selected model is empty. Click a catalog card first.
I can't find my door or window in the list. Doors, windows and venue models are hidden from this tool. See Place doors and windows.
A model has a padlock and says "Available on Plus or Pro". That model needs a Plus or Pro plan.
I clicked twice and nothing was placed. Right-click to finish the run.
Choose Line placement in the bottom toolbar, click a catalog model, and choose Start line placement. Switch to top view, click the start and end points, wait for the preview to load, then right-click to finish. The new objects are selected and Undo reverses the whole run.
In Line Placement, the Base axis setting decides which dimension of the model counts as its length along the route. On a long, shallow object like a portable backdrop, Z axis and X axis give opposite results. Undo, reopen Line placement, switch the axis, and redraw the same short test line.
Offset in Line Placement defaults to 1, which adds a gap between copies; it is not the object's total width. Set Offset to 0 under Show advanced to put copies edge to edge. Zero offset closes straight joins but not corners, and support bases at joins can still collide.
A bent path in Line Placement leaves a gap at a sharp turn, even at Offset 0. Instead, place one straight run, then start a second line placement with the same settings at the edge of the first run's last panel. In the Academy lesson, two panels plus three panels form a clean L.
Start line placement stays disabled until you click a catalog model card, because the tool needs a Selected model before it can draw a route. Search for a model such as Portable backdrop or filter by Category, then click its card. Doors, windows and venue models are hidden from this tool.