June 2013 - Inkscape Users - Inkscape Mailman

OT: Quasado StageStack (FreeHand replacement) considering opensource
by William Adams 06 Jun '13

06 Jun '13

post on it here: http://libregraphicsworld.org/blog/entry/stagestack-faces-dead-end Any way this could be of use to anyone? William -- William Adams senior graphic designer Fry Communications Sphinx of black quartz, judge my vow.

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Tips: How to Invoke One Inkscape Extension from Another + Other stuff I learned when writing the extension
by Shlomi Fish 06 Jun '13

06 Jun '13

Hi all, here are some tips you can use from my experience on working on an inkscape extension: 1. Calling one extension from another: -------------------------------------- This is the recipe I used in Python to call one extension from another: import subprocess def id_arg(my_id): return '--id=' + my_id with_perspective_applied_text = subprocess.check_output( ['python', '/usr/share/inkscape/extensions/perspective.py', id_arg(main_path_id()), id_arg(pers_e.get_path_id()), pers_e.calc_out_fn() ] ) main_path_id() and pers_e.get_path_id() are the IDs passed to the extension as selections and pers_e.calc_out_fn() contains the path to where the intermediate SVG was written. This can be done securely by doing: temp_dir = tempfile.mkdtemp() def temp_svg_fn(basename): global temp_dir return join(temp_dir, basename + '.svg') 2. Output from inkex.Effect to a file. ------------------------------------------ The following class that inherits from inkex.Effect writes to a temporary file instead of to STDOUT. [QUOTE] class GenericAddPathEffect(inkex.Effect): def __init__(self, basename): self.basename = basename inkex.Effect.__init__(self) def effect(self): draw_generic_style_path(self.get_path_name(), self.get_path_id(), self.current_layer, self.calc_d_s() ) def calc_out_fn(self): return temp_svg_fn(self.basename) def write_to_temp(self, input_fn): self.affect(args=[input_fn], output=False) with open(self.calc_out_fn(), 'w') as fh: self.document.write(fh) return [/QUOTE] Customise it to your heart's content. (Note that the passing of parameters is a little counter-intuitive now - I'm planning to fix it). 3. Adding a gradient: --------------------- You can add a gradient by manipulating the <defs section in the file. See: [QUOTE] class StyleEffect(GenericAddPathEffect): def effect(self): self.xpathSingle(u'svg:defs').insert(0, inkex.etree.XML('''<svg:linearGradient xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" id="bk2hp_grad"> <stop style="stop-color:#0000ff;stop-opacity:1" offset="0" id="b2h_0" /> <stop style="stop-color:#00deff;stop-opacity:1" offset="0.4" id="b2h_1" /> <stop style="stop-color:#00deff;stop-opacity:1" offset="0.6" id="b2h_2" /> <stop style="stop-color:#0000ff;stop-opacity:1" offset="1" id="b2h_3" /> </svg:linearGradient>''') ) self.xpathSingle(u'svg:defs').insert(1, inkex.etree.XML('''<svg:linearGradient xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" id="bk2hp_grad_rot" gradientTransform="rotate(90)" xlink:href="#bk2hp_grad" />''') ) self.xpathSingle(u'//*[@id="' + main_path_id() + '"]').set( 'style', simplestyle.formatStyle({ 'stroke': '#888888', 'stroke-width': '1pt', 'fill': 'url(#bk2hp_grad_rot)', } )) [/QUOTE] ========================== Regards, Shlomi Fish -- ----------------------------------------------------------------- Shlomi Fish http://www.shlomifish.org/ List of Text Editors and IDEs - http://shlom.in/IDEs Flock aims to be the browser for the social web, but I found it to be the completely anti-social browser. Please reply to list if it's a mailing list post - http://shlom.in/reply .

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svg for web pages.
by john Culleton 01 Jun '13

01 Jun '13

I am planning to convert one of my web sites to all-svg. I am wondering about the use of a site map. Is it the same as for an html site (with different names of course)? -- John Culleton Wexford Press Free list of books for self-publishers: http://wexfordpress.net/shortlist.html PDF e-book: "Create Book Covers with Scribus" available at http://www.booklocker.com/books/4055.html

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