-Style1;POLYGON((150 90,146.193976625564 70.8658283817455,135.355339059327 54.6446609406727,119.134171618255 43.8060233744357,100 40,80.8658283817456 43.8060233744356,64.6446609406727 54.6446609406725,53.8060233744357 70.8658283817454,50 89.9999999999998,53.8060233744356 109.134171618254,64.6446609406725 125.355339059327,80.8658283817453 136.193976625564,99.9999999999998 140,119.134171618254 136.193976625564,135.355339059327 125.355339059328,146.193976625564 109.134171618255,150 90))
+Style1;POLYGON((150 90,135.355339059327 54.6446609406727,100 40,64.6446609406727 54.6446609406725,50 89.9999999999998,64.6446609406725 125.355339059327,99.9999999999998 140,135.355339059327 125.355339059328,150 90))
<imageobject>
<imagedata fileref="images/st_buffer02.png" />
</imageobject>
- <caption><para>4 segments quarter circle (lame)</para></caption>
+ <caption><para>2 segments quarter circle (lame)</para></caption>
</mediaobject>
</informalfigure></para></entry>
</row>
-- A buffered point forcing approximation of
-- 4 points per circle is poly with 16 sides
SELECT ST_NPoints(ST_Buffer(ST_GeomFromText('POINT(100 90)'), 50)) As promisingcircle_pcount,
-ST_NPoints(ST_Buffer(ST_GeomFromText('POINT(100 90)'), 50, 4)) As lamecircle_pcount;
+ST_NPoints(ST_Buffer(ST_GeomFromText('POINT(100 90)'), 50, 2)) As lamecircle_pcount;
promisingcircle_pcount | lamecircle_pcount
------------------------+-------------------
- 33 | 17
+ 33 | 9
--A lighter but lamer circle
-- only 2 points per quarter circle is an octagon