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remove left and right notes until I have arrows. not embarrass myself with my directional dyslexia.

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git-svn-id: http://svn.osgeo.org/postgis/trunk@7678 b70326c6-7e19-0410-871a-916f4a2858ee
This commit is contained in:
Regina Obe 2011-07-26 14:29:37 +00:00
parent b42ef3eca7
commit df1633cf3b
1 changed files with 6 additions and 5 deletions
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11
doc/reference_processing.xml
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@ -375,7 +375,7 @@ FROM someroadstable;
<imagedata fileref="images/st_offsetcurve01.png" />
</imageobject>
<caption><para>15, 'quad_segs=4 join=round' original line
and its offset 15 units to the left.</para></caption>
and its offset 15 units.</para></caption>
</mediaobject>
</informalfigure>
<programlisting>
@ -399,16 +399,17 @@ LINESTRING(164 1,18 1,12.2597485145237 2.1418070123307,
<imagedata fileref="images/st_offsetcurve02.png" />
</imageobject>
<caption><para>-15, 'quad_segs=4 join=round' original line
and its offset 15 units to the right.</para></caption>
and its offset -15 units and then a double-offset to get more curvy</para></caption>
</mediaobject>
</informalfigure>
<programlisting>
SELECT ST_AsText(ST_OffsetCurve(ST_GeomFromText(
SELECT ST_AsText(ST_OffsetCurve(geom,
-15, 'quad_segs=4 join=round')) As nosocurvy
FROM ST_GeomFromText(
'LINESTRING(164 16,144 16,124 16,104 16,84 16,64 16,
44 16,24 16,20 16,18 16,17 17,
16 18,16 20,16 40,16 60,16 80,16 100,
16 120,16 140,16 160,16 180,16 195)'),
-15, 'quad_segs=4 join=round'));
16 120,16 140,16 160,16 180,16 195)') As geom;
-- output --
LINESTRING(31 195,31 31,164 31)
</programlisting>