Re: Creating SVG: using MetaFun, exporting proper units, conversion to DXF

[Hans Hagen <pragma@wxs.nl>]

On 7/27/2017 3:52 AM, Mojca Miklavec wrote:
> Hi,
> 
> I just wanted to say that I found a more reliable way to go from
> metapost to dxf.
> 
> First run "context something.mp" and then
> 
> pstoedit -dt -f dxf:-polyaslines\ -mm something.1 something.dxf
> 
> For some reason the SVG files from metapost get wrong dimensions when
> converted via inkscape, but pstoedit works super reliably.

in that case you can consider:

mp -> pdf -> mudraw/mutool -> svg

> Mojca
> 
> On 29 June 2016 at 12:31, Mojca Miklavec wrote:
>> Hi,
>>
>> I want to play with CNC and don't yet have any experience with CAD
>> software (nor the licence for the expensive ones) other than perhaps
>> some Blender, so I decided to try to use the super ugly route with
>>      metapost -> svg -> dxf -> g-code
>> for the first time.
>>
>> I have a few questions.
> 
> /.../
> 
>> (3) Is there any way to convince the SVG output mode to generate something like
>>      <svg ... width="100.0mm" height="100.0mm" ... >
>> rather than
>>      <svg ... width="283.46456692913387" height="283.46456692913387" ... >
>> because the program I use to convert SVG to DXF has troubles
>> interpreting "points" properly. I read somewhere that they assume 90
>> points per inch because that's Inkskape's default.
>>
>> (4) Does anyone have a better proposal for conversion into DXF (or
>> G-code)? I'm currently playing with FreeCAD and I've seen some
>> tutorials showing that AutoCAD can open PDF directly, but I don't want
>> to buy AudoCAD just for the sake of converting files.
>>
>> Thank you,
>>      Mojca
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