How to draw a line chart with highlight points on it

[Aerendir]

I'm trying to draw a line that represents a chart and on it I'd like to draw some highlighted points.

Until now:

1. I've drawn the line that represents the chart;
2. Used the shape donut/ring (I don't know in the English version of the interface how it is called, sorry) to draw the highlight points on the line;
3. Converted the donut/ring shapes to curves.

This is what I have now

As you can imagine, I basically have some curves once over the other.

So, there still is the line visible inside the hole of the ring:

 

I'd like to:

1. Merge the rings with the line;
2. Remove the line from the hole of the rings

How should have I to proceed?

Thank you!

[Gabe]

Hi @Aerendir,

Welcome to the forums. 

First, expand all the curves. Next, select all the shapes and choose "Divide"  or go to layer Layer > Geometry Divide. Next, delete the shapes you do not need, select all the remaining shapes and press Add.

Thanks,

Gabe. 

[Aerendir]

Hi GabrielIM, thank you for your reply.

In the meantime, I did some other searches on Google and found that on Affinity Photo it is not possible to expand strokes of curves.

As I'm using Affinity Photo and not Affinity Designer, I think I'm not able to expand the curves

Here is the 3d: 

 

[JimmyJack]

@Aerendir does the output need to be vector?

If not you can try this:
(the dot has a 100% fill and no stroke set to erase with an FX Outline. Group it with the line so only the line is erased )

[R C-R]

If you need everything to be vectors & must do it in Affinity Photo, I think the only way is to tediously add nodes to the line on the edges of each donut, break the line segment on each of those node pairs, & delete the small segments that are visible in the donut holes. Setting the line segments to use butt caps may help.

line with highlights.afphoto