How to export a meshless SVG?

Question

This problem does not exist in 13.2.1 anymore

I often need to export some svg with mma, but RegionPlot's diagrams will have some extra mesh after exporting SVG:

p = RegionPlot[x^2 + y^3 < 2, {x, -2, 2}, {y, -2, 2}];
Export["p.svg", p]

Not only does this make SVG very ugly, but it can lead to very large files. And is this a bug of MMA?

p = RegionPlot[x^2 + y^3 < 2, {x, -2, 2}, {y, -2, 2}, PlotStyle -> Cyan]; Export["p.svg", p] — cvgmt, Jan 07 '22 at 10:59
@cvgmt As the file size is large than before, I think the color just covers those mesh, which actually exists. — yode, Jan 07 '22 at 11:08
Yep, fixed in 13.2.1. Well, there are still some invisible lines... — Валерий Заподовников, Feb 20 '23 at 03:50
@ВалерийЗаподовников I did, but I don't have the invisible line you're talking about. Can you take a picture? — yode, Feb 20 '23 at 05:37
Here: https://i.stack.imgur.com/ODDLP.png that is Chrome, but it is more pronounced in Firefox and in pdf in Acrobat. — Валерий Заподовников, Feb 20 '23 at 06:17
That is how this thing looks in Acrobat, when you press edit pdf: https://i.stack.imgur.com/VvzmX.png https://i.stack.imgur.com/HkLBF.png and yes, you can delete it in full: https://i.stack.imgur.com/SUjAq.png — Валерий Заподовников, Feb 20 '23 at 06:37

cvgmt · Answer 1 · 2022-01-07T11:36:16.850

6

p = RegionPlot[x^2 + y^3 < 2, {x, -2, 2}, {y, -2, 2}, 
   PlotStyle -> {EdgeForm[]}];
Export["p.svg", p]

pp= RegionPlot[x^2 + y^3 < 2, {x, -2, 2}, {y, -2, 2}, 
   PlotStyle -> {EdgeForm[], FaceForm[Green]}, 
   BoundaryStyle -> None];
Export["pp.svg", pp]

ppp = RegionPlot[x^2 + y^3 < 2, {x, -2, 2}, {y, -2, 2}, 
   PlotStyle -> {EdgeForm[], FaceForm[None]}, BoundaryStyle -> Red];
Export["ppp.svg", ppp]

edited Jan 07 '22 at 11:36

answered Jan 07 '22 at 11:21

cvgmt

72,231
4
75
133

I thought the filesize would be smaller without the grid, but it still looks the same. And As far as I know, MMA doesn't have a parameter for resizing SVG filesize? – yode Jan 07 '22 at 11:57
They are smaller in the last case for ppp.svg, for pdf and for svg, cause in acrobat white is just white of the background. – Валерий Заподовников Feb 20 '23 at 10:14

score 3 · Answer 2 · answered Jan 07 '22 at 13:31

3

This code almost solves my problem, which will export very small and meshless SVG file, but the background is not transparent. I don't know how to export an SVG file with the transparent background..

p = RegionPlot[x^2 + y^3 < 2, {x, -2, 2}, {y, -2, 2}];
BoundaryDiscretizeGraphics[p, Frame -> True];
Export["p.svg", %,Background -> None]

answered Jan 07 '22 at 13:31

yode

26,686
4
62
167

Why not use BoundaryDiscretizeRegion[ ImplicitRegion[x^2 + y^3 < 2, {{x, -2, 2}, {y, -2, 2}}], Frame -> True] ? – cvgmt Jan 07 '22 at 13:49
@cvgmt But the background is white still – yode Jan 07 '22 at 14:51
Open your svg file in gimp and it shows a hatched background suggesting that it is transparent ? – Syed Jan 07 '22 at 15:01
@Syed No, it is WHITE but not transparent, the transparent background is my after... – yode Jan 07 '22 at 15:33

How to export a meshless SVG?

This problem does not exist in 13.2.1 anymore

2 Answers2