FabLab_Chemnitz/mightyscape-1.2
FabLab_Chemnitz/mightyscape-1.2
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sanitize drawing scale

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This commit is contained in:
Mario Voigt 2024-01-23 11:32:59 +01:00
parent dd81cbfb99
commit 035f441e7a
2 changed files with 12 additions and 20 deletions
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2
extensions/fablabchemnitz/normalize_drawing_scale/normalize_drawing_scale.inx
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@ -2,7 +2,7 @@
<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
<name>Normalize Drawing Scale</name>
<id>fablabchemnitz.de.normalize_drawing_scale</id>
<param name="remove_viewbox" type="bool" gui-text="Remove viewBox and set document units to px" gui-description="Removes viewBox attribute from svg:svg. Warning: this disabled the feature to change the document units to anything else than px unit.">false</param>
<label appearance="header">This will also reset the viewbox origin to x0,y0</label>
<param name="target_scale" type="float" min="0.001" max="9999.000" precision="3" gui-text="Target scale (%)" gui-description="Default is 100%">100.0</param>
<effect needs-live-preview="false">
<object-type>all</object-type>

30
extensions/fablabchemnitz/normalize_drawing_scale/normalize_drawing_scale.py
View File

@ -7,7 +7,6 @@ from lxml import etree
class NormalizeDrawingScale(inkex.EffectExtension):
def add_arguments(self, pars):
pars.add_argument('--remove_viewbox', type=inkex.Boolean, default=True)
pars.add_argument('--target_scale', type=float, default=100.0)
def effect(self):
@ -48,9 +47,9 @@ class NormalizeDrawingScale(inkex.EffectExtension):
#inkex.errormsg("visualScaleX: {:0.6f}".format(visualScaleX))
#inkex.errormsg("formatScaleX: {:0.6f}".format(formatScaleX))
if inkscapeScale == targetScale: #strange rule. might break sth.
inkex.utils.debug("Nothing to do. Scale is already 100%")
return
#if inkscapeScale == targetScale: #strange rule. might break sth.
# inkex.utils.debug("Nothing to do. Scale is already 100%")
# return
if visualScaleX == 0.0: #seems there is no viewBox attribute, then ...
#inkex.errormsg("viewBox attribute is missing in svg:svg. Applying new one ...")
@ -59,21 +58,14 @@ class NormalizeDrawingScale(inkex.EffectExtension):
if round(visualScaleX, 5) != targetScale or self.options.remove_viewbox is True:
#set scale to 100% (we adjust viewBox)
sc = (1 / (targetScale / inkscapeScale))
if self.options.remove_viewbox is False:
viewBoxNew = '0 0 {} {}'.format(docWidth_fin / targetScale, docHeight_fin / targetScale)
#inkex.errormsg("viewBox modifying to: {}".format(viewBoxNew))
#inkex.errormsg("width modifying to: {}{}".format(docWidth_fin, format_units))
#inkex.errormsg("height modifying to: {}{}".format(docHeight_fin, format_units))
self.svg.set('viewBox', viewBoxNew)
self.svg.set('width', "{}{}".format(docWidth_fin, format_units))
self.svg.set('height', "{}{}".format(docHeight_fin, format_units))
else:
#inkex.errormsg("viewBox popping; setting back to px ...")
self.svg.pop('viewBox')
self.document.getroot().set('inkscape:document-units', 'px')
self.svg.set('width', docWidth_fin)
self.svg.set('height', docHeight_fin)
namedView.attrib[inkex.addNS('document-units', 'inkscape')] = 'px'
viewBoxNew = '0 0 {} {}'.format(docWidth_fin / targetScale, docHeight_fin / targetScale)
#inkex.errormsg("viewBox modifying to: {}".format(viewBoxNew))
#inkex.errormsg("width modifying to: {}{}".format(docWidth_fin, format_units))
#inkex.errormsg("height modifying to: {}{}".format(docHeight_fin, format_units))
self.svg.set('viewBox', viewBoxNew)
self.svg.set('width', "{}{}".format(docWidth_fin, format_units))
self.svg.set('height', "{}{}".format(docHeight_fin, format_units))
translation_matrix = [[sc, 0.0, 0.0], [0.0, sc, 0.0]]
#select each top layer and apply the transformation to scale