How to create this circular background image? (Inkscape)

Question

I want to create this circular image.
But I am not sure what is the better way of making this.

I personally create this with a pie, with gradient end as a white but alpha becomes less than 1 (more transparent), as shown below.

Is there a better way of making this?

Are we supposed to see something moving here? IMHO PNG does not allow for animations - maybe you should use a GIF instead. A second issue is, that I don't know, what part is the background and which the foreground here (I guess the white part is the foreground) and why it matters. — user unknown, Jan 7, 2017 at 2:04
@userunknown Sorry to say it confuses you. Right, i just mean an image (png), which i will do the animation with my program. I mean the white image to serve as a background in my program (the grey part is added here so the white color is visible). In short, i mean the white color image here, regarding 'how to create this'. — zeroflaw, Jan 7, 2017 at 7:30
not sure what you are trying to do beyond create an image with alpha (transparent) areas, and that it needs to be circular — Pinback, Aug 12, 2018 at 3:50
sorry i shouldn't mention anything about 'movement' or 'animation'. basically what i want is that image only. i would post what i did soon. — zeroflaw, Aug 13, 2018 at 5:37
@zeroflaw I've deleted the reference to a moving image. If you are not happy with the edit I made, you can revert it. — Billy Kerr, Aug 18, 2018 at 12:39

Billy Kerr · Accepted Answer · 2018-08-18 12:35:38Z

1

You can edit the gradients in Inkscape. You can have more than two stops. Gradient stops can have 100% alpha.

The example below shows the gradient I applied to all the segments. It has 9 stops, and 100% alpha stops at either end.

answered Aug 18, 2018 at 12:35

Billy Kerr

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Omg. I feel yours is more accurate. Thanks for this :)
– zeroflaw
Aug 18, 2018 at 13:50
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Sorry I also meant to say, unlike yours this is one shape with a gradient, and then I duplicated and rotated each segment repeatedly.
– Billy Kerr
Aug 18, 2018 at 17:52
no sorry needed lol.
– zeroflaw
Aug 19, 2018 at 2:13

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zeroflaw · Accepted Answer · 2018-08-18 09:43:07Z

0

Sorry for the late. Here's my solution in the end. May not be the best. Let me know if you have a better solution or i will close this soon.

Draw a circle
Draw a straight line. Duplicate and rotate it. (Hold Ctrl to make it rotate at a fixed angle)
Union those lines. Perform Path -> Difference on the circle.
Break Apart the triangles. Remove the colors as you wish.
Create another circle, with circular gradient -> White in the center. Black at the outermost.
Perform Object-> Mask -> Set with item from (4)

answered Aug 18, 2018 at 9:43

zeroflaw

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1

This can also be done with simple gradients without a mask. I realise this is an old question, but anyway I added an answer too.
– Billy Kerr
Aug 18, 2018 at 12:41

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2 Answers 2