jarrettr / stretch Goto Github PK

I'm not quite sure when this happened, but I noticed that the pads on one of my footprints are enlarged:

There is a workaround with right click -> update footprint:
.
It also shows up in Inkscape, but I imported/exported multiple times so it could've happened anytime.

I'm on lnkscape 1.0.2-2 (e86c870879, 2021-01-15)
KiCad :

Version: (5.1.9)-1, release build
Libraries:
    wxWidgets 3.0.5
    libcurl/7.71.0 OpenSSL/1.1.1g (Schannel) zlib/1.2.11 brotli/1.0.7 libidn2/2.3.0 libpsl/0.21.0 (+libidn2/2.3.0) libssh2/1.9.0 nghttp2/1.41.0
Platform: Windows 8 (build 9200), 64-bit edition, 64 bit, Little endian, wxMSW
Build Info:
    wxWidgets: 3.0.5 (wchar_t,wx containers,compatible with 2.8)
    Boost: 1.73.0
    OpenCASCADE Community Edition: 6.9.1
    Curl: 7.71.0
    Compiler: GCC 10.2.0 with C++ ABI 1014
Build settings:
    USE_WX_GRAPHICS_CONTEXT=OFF
    USE_WX_OVERLAY=OFF
    KICAD_SCRIPTING=ON
    KICAD_SCRIPTING_MODULES=ON
    KICAD_SCRIPTING_PYTHON3=OFF
    KICAD_SCRIPTING_WXPYTHON=ON
    KICAD_SCRIPTING_WXPYTHON_PHOENIX=OFF
    KICAD_SCRIPTING_ACTION_MENU=ON
    BUILD_GITHUB_PLUGIN=ON
    KICAD_USE_OCE=ON
    KICAD_USE_OCC=OFF
    KICAD_SPICE=ON 

Windows 10
Latest Stretch.

Just adding a net for now until I dig into it

Investigate the following:

        pcbnew.IO_MGR.Save(pcbnew.IO_MGR.KICAD_SEXP, _filename, board)
        board = pcbnew.IO_MGR.Load(pcbnew.IO_MGR.KICAD_SEXP, filename)

I cant export the SVG file from kicad when vias or coper zones are in the PCB design.

When a via is in the design it shows this error:

Exception on python action plugin code

Traceback (most recent call last):

File "/home/user/.kicad/scripting/plugins/Stretch/Stretch/kiplug/-kicad.py" line 42, in Run
a.Run Plugin(pcb Filename, self.svg file name)

File "/home/user/.kicad/scripting/plugins/tretch/Stretch/kiplug/-
svg writer.py line 117 in Run Plugin
svg board.To_ SVG()

File /home/user/.kicad/scripting/plugins/stretch/stretch/kiplug/-
Doard.py line 254in To_SVG
tag-Beautifulsoup(item.To SVG) html.parser)

File "/home/user/.kicad/scripting/plugins/Stretch/Stretch/kiplug/
via py line 188, in To SVG
holefill#colourAssign( Via.lnner

TypeError Assign) missing 1 required positional argument: 'layername'

When i try to fatten the beizer curves in inkscape this error shows in the log:

Traceback (most recent call last):
File "flatten.py", line 44, in
Flatten().run()
File "/snap/inkscape/9256/share/inkscape/extensions/inkex/base.py", line 130, in run
self.load_raw()
File "/snap/inkscape/9256/share/inkscape/extensions/inkex/base.py", line 143, in load_raw
document = self.load(self.file_io)
File "/snap/inkscape/9256/share/inkscape/extensions/inkex/base.py", line 317, in load
document = load_svg(stream)
File "/snap/inkscape/9256/share/inkscape/extensions/inkex/elements/_base.py", line 92, in load_svg
return etree.parse(stream, parser=SVG_PARSER)
File "src/lxml/etree.pyx", line 3521, in lxml.etree.parse
File "src/lxml/parser.pxi", line 1880, in lxml.etree._parseDocument
File "src/lxml/parser.pxi", line 1900, in lxml.etree._parseFilelikeDocument
File "src/lxml/parser.pxi", line 1795, in lxml.etree._parseDocFromFilelike
File "src/lxml/parser.pxi", line 1201, in lxml.etree._BaseParser._parseDocFromFilelike
File "src/lxml/parser.pxi", line 615, in lxml.etree._ParserContext._handleParseResultDoc
File "src/lxml/parser.pxi", line 725, in lxml.etree._handleParseResult
File "src/lxml/parser.pxi", line 654, in lxml.etree._raiseParseError
File "/tmp/ink_ext_XXXXXX.svgUCIJF1", line 2
lxml.etree.XMLSyntaxError: XML declaration allowed only at the start of the document, line 2, column 6

How can I fix it?

Only output to SVG works in KiCad 6. Changes can't be imported. I get and assert error.

Where do I start if I wanted to hack in KiCad 6 support?

Kicad V6.0.9, Linux
Exporting PCB to SVG fails with an exception in file text.py at line 237:
if len(self.at) > 2:

angle += float(self.at[2])

because there is an additional parameter "unlocked":

(fp_text reference "S2" (at 0 4 unlocked) (layer "B.SilkS")

A line with an angle looks like this:

(fp_text reference "S2" (at 0 4 -45 unlocked) (layer "B.SilkS")

Changing the above lines to
if len(self.at) > 3:

angle += float(self.at[2])

seems to fix the issue.

If something bad happens and Stretch generates a corrupt/invalid PCB, and then you won't be able to open it in KiCad. When you can't open it, you can't click the DOWN arrow, and can't generate a new, good PCB.

Current workaround is just to replace the PCB file with literally any one that works in your OS file manager so you can open it and hit that arrow, but it's janky.

A slightly better solution is to back up the existing PCB before replacing it with the newly generated one.

When I convert straight line segments to curves then reimport to KiCad, they continue to appear there as lines with the same endpoints instead of curves. Is there a specific way to create a curved board outline or trace?

With KiCad 8, arbitrary shapes can be connected to nets. Instead of the Inkscape hack with adding line segments to approximate curved traces, this can now be done natively.

The s-expression for the curves are like this:

	(gr_curve
		(pts
			(xy 66.4748 93.278) (xy 62.7248 90.378) (xy 64.2748 96.428) (xy 61.012077 95.482793)
		)
		(stroke
			(width 0.2)
			(type default)
		)
		(layer "F.Cu")
		(net 7)
	)

That ends up looking like this:

The four sets of points will end up looking like this in Inkscape:

In addition to making this plugin difficult to install, it also removes the ability to use the new KiCad plugin manager.

BeautifulSoup can be downloaded and included as a set of flat files in this repo, and in fact, it has been for some time, in the BS folder. That folder has been unused so far, though.

The problem with using it is that Python embedded in KiCad treats relative path imports really strangely. I attempted to get this working last year for a little while, but it was tricky, undocumented, and wasn't necessary for the minimum viable product.

Trying again to figure this out is becoming a higher priority now.

Copied the contents of Stretch-master to my plugins folder
C:\Program Files\KiCad\share\kicad\scripting\plugins
however, I am not able to load the plugins (refresh does not see anynew items).
Care to provide a sample?

I was trying to install the dependency bs4 as mentioned in the instruction which gives an exception error as attached in the picture.

Can I install from the Cmd prompt(Python 3.8.5) like "pip install bs4" instead of "\KiCad\bin\python.exe -m pip install bs4 " ?
What is the difference?

This almost seems to be a bug in BeautifulSoup, although it hasn't seemed to crop up in KiCad 5 at all. It also only seems to happen when stretching up, right after stretching down.

It's generated from base.svg.find('g', {'inkscape:label': layer}, recursive=True) in board.py.
layer is F.Cu or anything else really.

The base.svg XML triggers the packaged BS in isolation, without using Stretch as a plugin:

<svg height="297mm" id="svg8290" inkscape:version="0.92.4 (5da689c313, 2019-01-14)" sodipodi:docname="base.svg" version="1.1" viewbox="0 0 210 297" width="210mm" xmlns="http://www.w3.org/2000/svg" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd" xmlns:svg="http://www.w3.org/2000/svg">
<defs id="defs8284"></defs>
<sodipodi:namedview bordercolor="#666666" borderopacity="1.0" id="base" inkscape:current-layer="svg8290" inkscape:cx="-8.4507329" inkscape:cy="782.79942" inkscape:document-units="mm" inkscape:pageopacity="0.0" inkscape:pageshadow="2" inkscape:window-height="1137" inkscape:window-maximized="1" inkscape:window-width="1920" inkscape:window-x="-8" inkscape:window-y="32" inkscape:zoom="0.7" pagecolor="#000000" showgrid="false"></sodipodi:namedview>
<metadata id="metadata1">
<rdf:rdf>
<cc:work rdf:about="">
<dc:format>image/svg+xml</dc:format>
<dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage"></dc:type>
<dc:title></dc:title>
</cc:work>
</rdf:rdf>
</metadata>
<kicad></kicad><g attribs="user" id="layer58" inkscape:groupmode="layer" inkscape:label="User.9" number="58"></g><g attribs="user" id="layer57" inkscape:groupmode="layer" inkscape:label="User.8" number="57"></g><g attribs="user" id="layer56" inkscape:groupmode="layer" inkscape:label="User.7" number="56"></g><g attribs="user" id="layer55" inkscape:groupmode="layer" inkscape:label="User.6" number="55"></g><g attribs="user" id="layer54" inkscape:groupmode="layer" inkscape:label="User.5" number="54"></g><g attribs="user" id="layer53" inkscape:groupmode="layer" inkscape:label="User.4" number="53"></g><g attribs="user" id="layer52" inkscape:groupmode="layer" inkscape:label="User.3" number="52"></g><g attribs="user" id="layer51" inkscape:groupmode="layer" inkscape:label="User.2" number="51"></g><g attribs="user" id="layer50" inkscape:groupmode="layer" inkscape:label="User.1" number="50"></g><g attribs="user" id="layer49" inkscape:groupmode="layer" inkscape:label="F.Fab" number="49"></g><g attribs="user" id="layer48" inkscape:groupmode="layer" inkscape:label="B.Fab" number="48"></g><g attribs="user" id="layer47" inkscape:groupmode="layer" inkscape:label="F.CrtYd" number="47"></g><g attribs="user" id="layer46" inkscape:groupmode="layer" inkscape:label="B.CrtYd" number="46"></g><g attribs="user" id="layer45" inkscape:groupmode="layer" inkscape:label="Margin" number="45"></g><g attribs="user" id="layer44" inkscape:groupmode="layer" inkscape:label="Edge.Cuts" number="44"></g><g attribs="user" id="layer43" inkscape:groupmode="layer" inkscape:label="Eco2.User" number="43"></g><g attribs="user" id="layer42" inkscape:groupmode="layer" inkscape:label="Eco1.User" number="42"></g><g attribs="user" id="layer41" inkscape:groupmode="layer" inkscape:label="Cmts.User" number="41"></g><g attribs="user" id="layer40" inkscape:groupmode="layer" inkscape:label="Dwgs.User" number="40"></g><g attribs="user" id="layer39" inkscape:groupmode="layer" inkscape:label="F.Mask" number="39"></g><g attribs="user" id="layer38" inkscape:groupmode="layer" inkscape:label="B.Mask" number="38"></g><g attribs="user" id="layer37" inkscape:groupmode="layer" inkscape:label="F.SilkS" number="37"></g><g attribs="user" id="layer36" inkscape:groupmode="layer" inkscape:label="B.SilkS" number="36"></g><g attribs="user" id="layer35" inkscape:groupmode="layer" inkscape:label="F.Paste" number="35"></g><g attribs="user" id="layer34" inkscape:groupmode="layer" inkscape:label="B.Paste" number="34"></g><g attribs="user" id="layer33" inkscape:groupmode="layer" inkscape:label="F.Adhes" number="33"></g><g attribs="user" id="layer32" inkscape:groupmode="layer" inkscape:label="B.Adhes" number="32"></g><g attribs="signal" id="layer31" inkscape:groupmode="layer" inkscape:label="B.Cu" number="31"></g><g attribs="signal" id="layer0" inkscape:groupmode="layer" inkscape:label="F.Cu" number="0"></g><g inkscape:groupmode="layer" inkscape:label="Vias" type="layervia" user="True"></g><g inkscape:groupmode="layer" inkscape:label="Modules" type="module" user="True"></g><g inkscape:groupmode="layer" inkscape:label="Zones" type="layerzone" user="True"></g></svg>

More investigation needed. This does not happen with system-wide Pip installs of BS4.

The installation instructions mention this step:

Install dependencies using D:\Programs\KiCad\bin\python.exe -m pip install bs4 (but substituting your own KiCad\bin path)

Is the assumption correct that this needs to be entered into the windows console with administrator privileges?
What is the equivalent instruction for other platforms, Linux in particular?
Is the extension designed and tested in kicad nightly or only in stable?

I believe this has something to do with missing plugins,but I could be wrong.

I am considering extending the tool to include DXF round trip translations along side SVG, as the formats and conversions are similar. Would you be interested in having it added to your repo if I go down that path? If I fork, both efforts may have less overall support.

The show up yellow / same colour as edge-cuts or unknown layers

I may just be misunderstanding the workflow or something, but the documentation does say:

"Make your modifications. Bend some lines, draw some pictures, rotate some footprints"

So I tried:

• Export to SVG
• In SVG, go into F.Silk layer
• Draw a circle (using the circle/ellipse tool)
• Change some text
• Save the file
• In KiCad hit down arrow, close and reopen PCBnew window

The PCB appears with the text changed, but no sign of the circle I drew.

SVG->PCB step ignores clearance, etc

Whoops.

Dragging the layer in the Inkscape XML editor back into proper order fixes this, but not ideal

It would be great to clarify which version of KiCad is confirmed to be working.

Using:
Inkscape 1.0.2 (1.0.2+r75+1)
KiCad Version: 5.1.10-88a1d61d5888ubuntu20.04.1, release build

Libraries:
    wxWidgets 3.0.4
    libcurl/7.68.0 OpenSSL/1.1.1f zlib/1.2.11 brotli/1.0.7 libidn2/2.2.0 libpsl/0.21.0 (+libidn2/2.2.0) libssh/0.9.3/openssl/zlib nghttp2/1.40.0 librtmp/2.3
Platform: Linux 5.4.0-72-generic x86_64, 64 bit, Little endian, wxGTK
Build Info:
    wxWidgets: 3.0.4 (wchar_t,wx containers,compatible with 2.8) GTK+ 3.24
    Boost: 1.71.0
    OpenCASCADE Community Edition: 6.9.1
    Curl: 7.68.0
    Compiler: GCC 9.3.0 with C++ ABI 1013

Build settings:
    USE_WX_GRAPHICS_CONTEXT=OFF
    USE_WX_OVERLAY=ON
    KICAD_SCRIPTING=ON
    KICAD_SCRIPTING_MODULES=ON
    KICAD_SCRIPTING_PYTHON3=ON
    KICAD_SCRIPTING_WXPYTHON=ON
    KICAD_SCRIPTING_WXPYTHON_PHOENIX=ON
    KICAD_SCRIPTING_ACTION_MENU=ON
    BUILD_GITHUB_PLUGIN=ON
    KICAD_USE_OCE=ON
    KICAD_USE_OCC=OFF
    KICAD_SPICE=ON

Linux Mint 20.1
Stretch latest

I tried Stretch export on a sandbox example and it badly messes up text on output. Font sizes are wrong, at least one text object is moved, and a bunch are gone entirely. And several %R references are unresolved.

KiCad original:

Stretch export:

When I installed and refresh this plugin, it shows "The soupsieve package is not installed. CSS selectors cannot be used."

I solved this issue by installing the required package to the KiCad python. However, is it possible to install all the required packages during the initialisation or installation stage?

The X/Y are XML fields that don't get converted

Hi,

I'm using the Stretch plugin that can be installed through KiCad's plugin manager.
Importing back even the unmodified SVG int KiCad 8.0 gives me the following error:

Original pcb file:
kicad_test.kicad_pcb.txt

Stretch converted SVG to pcb:
kicad_test.kicad_pcb_imported.txt

Looks like the problem is with this line:
(generator_version 8.0)
The version number should be in quotes like
(generator_version "8.0")