class WKTWriter(dim=2, trim=False, precision=None)
This class allows outputting the WKT representation of a geometry. See the WKBWriter.outdim, trim, and precision attributes for details about the constructor arguments.
Changed in Django 1.10:
The ability to pass the dim, trim, and precision arguments to the constructor was added.
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write(geom)
Returns the WKT of the given geometry. Example:
>>> from django.contrib.gis.geos import Point, WKTWriter >>> pnt = Point(1, 1) >>> wkt_w = WKTWriter() >>> wkt_w.write(pnt) 'POINT (1.0000000000000000 1.0000000000000000)'
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outdim -
See
WKBWriter.outdim.
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trim
New in Django 1.10.
This property is used to enable or disable trimming of unnecessary decimals.
>>> from django.contrib.gis.geos import Point, WKTWriter >>> pnt = Point(1, 1) >>> wkt_w = WKTWriter() >>> wkt_w.trim False >>> wkt_w.write(pnt) 'POINT (1.0000000000000000 1.0000000000000000)' >>> wkt_w.trim = True >>> wkt_w.write(pnt) 'POINT (1 1)'
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precision
New in Django 1.10.
This property controls the rounding precision of coordinates; if set to None rounding is disabled.
>>> from django.contrib.gis.geos import Point, WKTWriter >>> pnt = Point(1.44, 1.66) >>> wkt_w = WKTWriter() >>> print(wkt_w.precision) None >>> wkt_w.write(pnt) 'POINT (1.4399999999999999 1.6599999999999999)' >>> wkt_w.precision = 0 >>> wkt_w.write(pnt) 'POINT (1 2)' >>> wkt_w.precision = 1 >>> wkt_w.write(pnt) 'POINT (1.4 1.7)'
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