35 lines
1.1 KiB
Python
35 lines
1.1 KiB
Python
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import mapnik
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from shapely.geometry import *
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class TestDatasource(mapnik.PythonDatasource):
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def __init__(self):
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super(TestDatasource, self).__init__()
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def features(self, query):
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return mapnik.PythonDatasource.wkb_features(
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keys = ('label',),
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features = (
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( Point(5,6).wkb, { 'label': 'foo-bar'} ),
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( Point(100,60).wkb, { 'label': 'buzz-quux'} ),
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)
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)
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if __name__ == '__main__':
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m = mapnik.Map(1280,1024)
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m.background = mapnik.Color('white')
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s = mapnik.Style()
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r = mapnik.Rule()
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r.symbols.append(mapnik.PointSymbolizer())
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t = mapnik.TextSymbolizer(mapnik.Expression("[label]"),"DejaVu Sans Book",10,mapnik.Color('black'))
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t.displacement = (5,5)
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r.symbols.append(t)
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s.rules.append(r)
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m.append_style('point_style',s)
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ds = mapnik.Python(factory='TestDatasource')
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layer = mapnik.Layer('python')
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layer.datasource = ds
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layer.styles.append('point_style')
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m.layers.append(layer)
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m.zoom_all()
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mapnik.render_to_file(m,'map.png', 'png')
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