[Ipe-discuss] Vector tiling lines?

[Thibaut Appel]

Dear Otfried,

Now I see your point with the last sentence - I've just learned that Ipe 
can export directly to pdf, which is very easy using 'ipetoipe -pdf'

Since (at least on the Unix version) there is no 'export as PDF' button, 
only 'export as EPS', I thought EPS was the only supported vector 
format. Therefore I've been saving to eps and converting with eps2pdf.

Although the manual clearly says pdf output is possible, isn't there a 
direct way with the GUI to save as a pdf instead of having to specify 
the file extension? I find this rather confusing for users.

Thibaut


On 04/05/2020 18:03, Otfried Cheong via Ipe-discuss wrote:
> On Mon, May 4, 2020, at 18:43, Thibaut Appel wrote:
>> In the resulting eps file, the tiling lines are not vectorial.
>>
>> Is there a missing option I needed to declare in the pattern?
> I see the problem.
>
> It appears that Cairo doesn't know how to export tilings to eps except to rasterize them.  In fact, I'm not sure if Postscript defines vectorial tiling patterns at all.
>
> Until five years ago, Ipe produced Postscript output itself instead of rendering through Cairo.   At that time, tilings and transparency were simply forbidden in EPS output.
>
> Do you really need to use EPS?   Most publishers have switched to production based on pdflatex, and handle PDF figures very well.
>
> Cheers,
>    Otfried
>
>
>
>> On 04/05/2020 17:37, Otfried Cheong via Ipe-discuss wrote:
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>>> On Mon, May 4, 2020, at 17:47, Thibaut Appel via Ipe-discuss wrote:
>>>> I defined my own tiling commands in my style sheet as
>>>>
>>>> <tiling name="myrise" angle="55" step="7" width="0.5"/>
>>>> <tiling name="myfall" angle="-55" step="7" width="0.5"/>
>>>>
>>>> Why aren't the tiling lines vectorized? They are rather rasterized.
>>> What makes you say that?   Your "myrise" pattern looks like this in the PDF output:
>>>
>>> 8 0 obj <<
>>> /Type /Pattern
>>> /PatternType 1
>>> /PaintType 2
>>> /TilingType 2
>>> /BBox [ 0 0 100 7 ]
>>> /XStep 100
>>> /YStep 7
>>> /Resources << >>
>>> /Matrix [0.573576 0.819152 -0.819152 0.573576 0 0]
>>> /Length 17 >>
>>> stream
>>> 0 0 100 0.5 re f
>>> endstream endobj
>>>
>>> Cheers,
>>>     Otfried
>>>
>>>
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