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Gaetano Raffaele authored06fd3f52
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import os
def parse_colormap_file(fn, filter=None):
labels = []
colors = []
class_names = []
with open(fn, 'r') as f:
for l in f.read().splitlines():
sl = l.split(' ')
if filter is not None and int(sl[0]) not in filter:
continue
labels.append(int(sl[0]))
colors.append((int(sl[1]),int(sl[2]),int(sl[3]),int(sl[4])))
class_names.append(' '.join(sl[5:]))
z = sorted(zip(labels,class_names,colors))
labels = [x[0] for x in z]
class_names = [x[1] for x in z]
colors = [x[2] for x in z]
return labels, class_names, colors
def create_qgs_style(map, palette):
labels, class_names, colors = parse_colormap_file(palette)
out_str_pre = """<!DOCTYPE qgis PUBLIC 'http://mrcc.com/qgis.dtd' 'SYSTEM'>
<qgis hasScaleBasedVisibilityFlag="0" maxScale="0" styleCategories="AllStyleCategories" minScale="1e+8" version="3.16.3-Hannover">
<flags>
<Identifiable>1</Identifiable>
<Removable>1</Removable>
<Searchable>1</Searchable>
</flags>
<temporal mode="0" enabled="0" fetchMode="0">
<fixedRange>
<start></start>
<end></end>
</fixedRange>
</temporal>
<customproperties>
<property key="WMSBackgroundLayer" value="false"/>
<property key="WMSPublishDataSourceUrl" value="false"/>
<property key="embeddedWidgets/count" value="0"/>
<property key="identify/format" value="Value"/>
</customproperties>
<pipe>
<provider>
<resampling zoomedInResamplingMethod="nearestNeighbour" zoomedOutResamplingMethod="nearestNeighbour" enabled="false" maxOversampling="2"/>
</provider>
<rasterrenderer alphaBand="-1" opacity="1" nodataColor="" band="1" type="paletted">
<rasterTransparency/>
<minMaxOrigin>
<limits>None</limits>
<extent>WholeRaster</extent>
<statAccuracy>Estimated</statAccuracy>
<cumulativeCutLower>0.02</cumulativeCutLower>
<cumulativeCutUpper>0.98</cumulativeCutUpper>
<stdDevFactor>2</stdDevFactor>
</minMaxOrigin>
<colorPalette>
"""
out_str_post="""
</colorPalette>
<colorramp name="[source]" type="randomcolors"/>
</rasterrenderer>
<brightnesscontrast contrast="0" brightness="0" gamma="1"/>
<huesaturation saturation="0" colorizeBlue="128" colorizeStrength="100" colorizeRed="255" colorizeOn="0" colorizeGreen="128" grayscaleMode="0"/>
<rasterresampler maxOversampling="2"/>
<resamplingStage>resamplingFilter</resamplingStage>
</pipe>
<blendMode>0</blendMode>
</qgis>
"""
out_str_colors = '\n'.join([' <paletteEntry alpha="255" value="{}" label="{}" color="#{:02x}{:02x}{:02x}"/>'.format(l,cn,c[0],c[1],c[2]) for l,cn,c in zip(labels, class_names, colors)])
out_fn = os.path.splitext(map)[0] + '.qml'
with open(out_fn, 'w') as f:
f.write(out_str_pre)
f.write(out_str_colors)
f.write(out_str_post)
return