How can multiple arrows be created along a path in inkscape?

Question

I need to indicate the path of light rays along different paths. So along each path, arrows are required (not as arrowheads, but at exact places I want it). How can this be achieved?

[Edit: I tried achieving it by making a small arrowhead using a short line, and overlapping this simple arrow over the required straight line. Arrowheads can be created wherever nodes exist, however, the direction of each arrow cannot be changed]

Answer 1

You need to use mid-markers in your path. At each point where you want an arrow, you need to ensure that there is a point in your path. This gives you full control over where the arrow heads appear. If you want a new one, but add a new node to the path.

The tricky part here is adding the nodes. There are a few options here:

1. Add all the nodes you need when creating the path.
   Using snapping and the grid Shift + 3 can help make this much easier. Sometimes it's easier to just delete and re-draw a path than add more nodes to an existing path.
2. Add nodes between specific segments in the path.
3. Add extra nodes, then delete.
   For example, if you want a new node at exactly 3/4 distance between two notes, add a new between them (at the mid-point) then select the second newly created select and add another node, then delete the two extras.
4. Move nodes around. Hold down Ctrl (log to perpendicular) or Ctrl + Alt (lock to current angle) may make this easier.

As of 0.92, Inkscape does not support slide a node along a path. See bug #170826

Answer 2

I'm not certain that this is what you're looking for, but have you tried creating your own Pattern Brush?

I did this in about 2 mins:

• Draw out a perfect square at any size (bigger if you want a more detailed object to create a pattern with) with no Fill and a very small Stroke, just big enough for you to be able to see the bounds

• Think about centering your pattern within that square, and which direction you want the pattern to be going as you apply it to a stroke

• After you're done with your squared-up object, select the square and get rid of the stroke and any fill if you had any on for some reason

• Select all of your object and group them, click on the 'New brush' button at the bottom-right of the Brushes panel and select the "Pattern" brush option

• Click on the third pattern button and select the "Auto-Centered" pattern that should have been generated using your icon - this will hopefully complete your pattern if all is going well

• Click on 'OK' to create your new Pattern Brush and your new brush should now be in your 'Brushes' library

• Select the path you want the pattern to follow, then select your pattern in the 'Brush' Llibrary to apply it to the Stroke

Hopefully this helped? lol