topic Re: Arial font extruded with sharp curves... in Fusion Support Forum

Arial font extruded with sharp curves...

ronenYVBNE — Tue, 24 Nov 2020 02:18:08 GMT

Hello, when creating a default text into a sketch using the default Arial font, then extruding it (again, all default operations), the resulting text body (or cut) does not contain a smooth curves where there should be.. for example (screen shot attached) the letter 'O' has a very noticeable sharp points between the curves of its outside edge, where it should be continuous curve all around.. when looking at the font outside fusion 360, the letter 'O' is rendered just fine even if enlarged to 200 pixel height (in PowerPoint), so seems to be the TrueType renderer in F360 that generates some artifacts in the conversion of curves in font. interesting enough, if you render the same text with the same text into another vector drawing application (AI, inkscape, visio) and then export the SVG/DXF and import into Fusion, the text looks just fine...

This has been observed even before the latest major text update. Anyone else seeing this?

Thanks much!

Re: Arial font extruded with sharp curves...

jeff_strater — Tue, 24 Nov 2020 04:22:25 GMT

this is just the limitation of the font itself. Font creators do not have the Tangent constraint, so the curves in the font sometimes are not tangent continuous. That works fine for displaying in a Word document, but if you make that font large, those inaccuracies are amplified.

Re: Arial font extruded with sharp curves...

ronenYVBNE — Tue, 24 Nov 2020 05:16:23 GMT

Jeff, thanks for the prompt response, however I don't think that's the case here. I've used inkscape (just as example) to type the same text with the same font (even when zooming to considerable size on a 4k monitor there are no sharp edges btw in screen rendering), then export it as svg and import it into a sketch in F360, it comes as a regular text object (not a path), when extruded its shows the same artifacts.

Now, I go back into inkscape, convert the text into path (which breaks it down into individual paths of each letters), and export as SVG again. import into fusion into a sketch (this time, the svg comes as paths as expected correctly), then extruded and it looks perfect:

thanks again!

Re: Arial font extruded with sharp curves...

azimshaikh95 — Tue, 24 Nov 2020 05:18:38 GMT

Hi @ronenYVBNE , I would suggest you use 'Arial Rounded' Font instead of using Regular Arial. I hope it will resolve your issues.

Betreff: Arial font extruded with sharp curves...

grURN8F — Wed, 22 Sep 2021 10:23:16 GMT

Hi folks,

same problem here. "Arial Rounded" is not even available for selection in my list of fonts. Did a little research and this seems to be a quite common issue. Usually Autodesks answer was something like "the text function in Autodesk is not designed for generating large letters" which is more than unsatisfactory to me.

@Anonymousis there really no better solution than using another programm, rounding over the edges or manually recreating the letters using splines?

Betreff: Arial font extruded with sharp curves...

g-andresen — Wed, 22 Sep 2021 10:50:01 GMT

Hi,

Fusion can only use fonts that are in the system.
If this is not the case for Arial rounded you have to download the font (in OTF) and install it on your system. After restarting fusion you will have it available there as well.

Günther

Betreff: Arial font extruded with sharp curves...

grURN8F — Thu, 23 Sep 2021 08:04:30 GMT

Thanks @g-andresen, I assumed that. To be honest though that is not really what I wanted to know - and the interesting part remains unanswered.

Betreff: Arial font extruded with sharp curves...

g-andresen — Thu, 23 Sep 2021 10:30:36 GMT

Hi,

@grURN8F wrote:
To be honest though that is not really what I wanted to know - and the interesting part remains unanswered.

Please explain (with pictures or screencast) what you want to achieve.

günther

Re: Arial font extruded with sharp curves...

HughesTooling — Thu, 23 Sep 2021 11:44:54 GMT

@jeff_strater @ronenYVBNE There does seem to be a problem extruding from a text object. If you explode the text first you get a lot smoother set of curves. Extruded from exploded curves on the right, see attached file.

Mark

Re: Arial font extruded with sharp curves...

HughesTooling — Thu, 23 Sep 2021 10:58:50 GMT

As another test, adding a fillet with Chain enabled doesn't work on the extrusion from a text object!

Re: Arial font extruded with sharp curves...

grURN8F — Thu, 23 Sep 2021 12:44:01 GMT

@HughesToolingawesome - exactly, what I have been looking for. Thank you so much!

Re: Arial font extruded with sharp curves...

jeff_strater — Thu, 23 Sep 2021 16:39:51 GMT

@HughesTooling - strange. I was not able to re-create this from scratch. I created one sketch, put the same strings with the same font and size, and then exploded one of them, and extruded both. As near as I can tell, the results are the same (which I would expect - the code goes through the same curve extraction logic for Explode as for Extrude, it just happens discretely for Explode, whereas in Extrude it happens just before the Extrude). So, how did you create your example? What are the differences between my design and yours?

Re: Arial font extruded with sharp curves...

HughesTooling — Thu, 23 Sep 2021 16:50:13 GMT

@jeff_strater Think you use a mac? There is a bit of a difference if you try selecting the edge of the O with the fillet command with Chain checked.

Also I created another set of exploded curves on my PC (Windows 8.1) and I can select the whole edge with one click so there's a difference for me. The text object is the middle one and might be different for you on a different machine. File's attached again.

Re: Arial font extruded with sharp curves...

HughesTooling — Thu, 23 Sep 2021 16:57:20 GMT

Here's another example of the difference. Using curvature analysis

Re: Arial font extruded with sharp curves...

ronenYVBNE — Thu, 23 Sep 2021 17:06:09 GMT

The thread popped up again for me 🙂 was going through the stages, and as noted, if I explode the text before extrusion, the curves are smooth. Arial default font. I'm using F360 on a win10 machine, latest version. Seems to have a difference between the font rendering via direct extrusion, and via exploding first... attached is a picture with one vertex marked, top is direct extrusion, bottom is explode first, both on the same sketch..

Re: Arial font extruded with sharp curves...

jeff_strater — Thu, 23 Sep 2021 23:10:40 GMT

thanks, @HughesTooling - I tried it on Windows, and it is definitely worse there. But, using Curvature Combs, I can even see the difference on my Mac version:

Windows:

Mac:

[edit] the Fusion bug for this is: FUS-91151