[postgis-tickets] [SCM] PostGIS branch master updated. 3.2.0-436-g194ff371b
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commit 194ff371b4be829c29411690d36a673453446586
Author: Martin Davis <mtnclimb at gmail.com>
Date: Mon Jan 31 14:44:46 2022 -0800
Improve doc ST_GeometricMedian example
diff --git a/doc/html/image_src/Makefile.in b/doc/html/image_src/Makefile.in
index e11d3acb7..d2540a281 100644
--- a/doc/html/image_src/Makefile.in
+++ b/doc/html/image_src/Makefile.in
@@ -75,7 +75,6 @@ IMAGES= \
../images/st_extrude01.png \
../images/st_extrude03.png \
../images/st_generatepoints01.png \
- ../images/st_generatepoints02.png \
../images/st_geometricmedian01.png \
../images/st_issimple01.png \
../images/st_issimple02.png \
diff --git a/doc/html/image_src/st_generatepoints01.wkt b/doc/html/image_src/st_generatepoints01.wkt
index 19352c4d7..5fc1e271c 100644
--- a/doc/html/image_src/st_generatepoints01.wkt
+++ b/doc/html/image_src/st_generatepoints01.wkt
@@ -1 +1,2 @@
ArgA;POLYGON((142.928932188135 157.071067811865,144.444297669804 158.314696123025,146.173165676349 159.238795325113,148.049096779839 159.807852804032,150 160,151.950903220161 159.807852804032,153.826834323651 159.238795325113,155.555702330196 158.314696123025,157.071067811865 157.071067811865,158.314696123025 155.555702330196,159.238795325113 153.826834323651,159.807852804032 151.950903220161,160 150,160 50,159.807852804032 48.0490967798387,159.238795325113 46.1731656763491,158.314696123025 44.444297669804,157.071067811865 42.9289321881345,155.555702330196 41.6853038769745,153.826834323651 40.7612046748871,151.950903220161 40.1921471959677,150 40,148.049096779839 40.1921471959677,146.173165676349 40.7612046748871,144.444297669804 41.6853038769745,142.928932188135 42.9289321881345,141.685303876975 44.444297669804,140.761204674887 46.1731656763491,140.192147195968 48.0490967798387,140 50,140 125.857864376269,57.0710678118655 42.9289321881345,55.555702330196 41.6853038769745,53.8268343
236509 40.7612046748871,51.9509032201613 40.1921471959677,50 40,48.0490967798387 40.1921471959677,46.1731656763491 40.7612046748871,44.444297669804 41.6853038769745,42.9289321881345 42.9289321881345,41.6853038769746 44.444297669804,40.7612046748871 46.1731656763491,40.1921471959677 48.0490967798387,40 50,40.1921471959677 51.9509032201613,40.7612046748871 53.8268343236509,41.6853038769745 55.555702330196,42.9289321881345 57.0710678118655,142.928932188135 157.071067811865))
+Result;MULTIPOINT(124.719467098431 131.257475277821,155.60408218128 72.9518237434817,106.69719046413 119.774229927365,140.578248132556 153.822320976712,152.641957278627 87.2817137366839,143.433601275019 137.83621232774,94.5170191740369 89.6648113250309,157.562215520436 47.0045167465619,51.5256023126078 40.4134116206039,158.800069139342 117.796996865768,67.1788241389208 69.3638368956401,129.504207562589 133.236854414052)
diff --git a/doc/html/image_src/st_generatepoints02.wkt b/doc/html/image_src/st_generatepoints02.wkt
deleted file mode 100644
index 5fc1e271c..000000000
--- a/doc/html/image_src/st_generatepoints02.wkt
+++ /dev/null
@@ -1,2 +0,0 @@
-ArgA;POLYGON((142.928932188135 157.071067811865,144.444297669804 158.314696123025,146.173165676349 159.238795325113,148.049096779839 159.807852804032,150 160,151.950903220161 159.807852804032,153.826834323651 159.238795325113,155.555702330196 158.314696123025,157.071067811865 157.071067811865,158.314696123025 155.555702330196,159.238795325113 153.826834323651,159.807852804032 151.950903220161,160 150,160 50,159.807852804032 48.0490967798387,159.238795325113 46.1731656763491,158.314696123025 44.444297669804,157.071067811865 42.9289321881345,155.555702330196 41.6853038769745,153.826834323651 40.7612046748871,151.950903220161 40.1921471959677,150 40,148.049096779839 40.1921471959677,146.173165676349 40.7612046748871,144.444297669804 41.6853038769745,142.928932188135 42.9289321881345,141.685303876975 44.444297669804,140.761204674887 46.1731656763491,140.192147195968 48.0490967798387,140 50,140 125.857864376269,57.0710678118655 42.9289321881345,55.555702330196 41.6853038769745,53.8268343
236509 40.7612046748871,51.9509032201613 40.1921471959677,50 40,48.0490967798387 40.1921471959677,46.1731656763491 40.7612046748871,44.444297669804 41.6853038769745,42.9289321881345 42.9289321881345,41.6853038769746 44.444297669804,40.7612046748871 46.1731656763491,40.1921471959677 48.0490967798387,40 50,40.1921471959677 51.9509032201613,40.7612046748871 53.8268343236509,41.6853038769745 55.555702330196,42.9289321881345 57.0710678118655,142.928932188135 157.071067811865))
-Result;MULTIPOINT(124.719467098431 131.257475277821,155.60408218128 72.9518237434817,106.69719046413 119.774229927365,140.578248132556 153.822320976712,152.641957278627 87.2817137366839,143.433601275019 137.83621232774,94.5170191740369 89.6648113250309,157.562215520436 47.0045167465619,51.5256023126078 40.4134116206039,158.800069139342 117.796996865768,67.1788241389208 69.3638368956401,129.504207562589 133.236854414052)
diff --git a/doc/html/image_src/st_geometricmedian01.wkt b/doc/html/image_src/st_geometricmedian01.wkt
index bfa5aa62a..611194358 100644
--- a/doc/html/image_src/st_geometricmedian01.wkt
+++ b/doc/html/image_src/st_geometricmedian01.wkt
@@ -1,3 +1,3 @@
Result;POINT(25 25)
-ArgB;POINT(65 65)
-ArgA-thin;MULTIPOINT((20 20), (20 30), (30 20), (190 190))
+ArgB;POINT(63 63)
+ArgA;MULTIPOINT((10 10), (10 50), (50 10), (190 190))
diff --git a/doc/reference_processing.xml b/doc/reference_processing.xml
index ade1f14f3..290cf5454 100644
--- a/doc/reference_processing.xml
+++ b/doc/reference_processing.xml
@@ -1062,7 +1062,7 @@ FROM (SELECT ST_SetEffectiveArea('LINESTRING(5 2, 3 8, 6 20, 7 25, 10 10)'::geo
<para><informalfigure>
<mediaobject>
<imageobject>
- <imagedata fileref="images/st_generatepoints02.png" />
+ <imagedata fileref="images/st_generatepoints01.png" />
</imageobject>
<caption><para>Generated 12 Points overlaid on top of original polygon using a random seed value 1996</para></caption>
</mediaobject>
@@ -1143,8 +1143,8 @@ FROM (
<caption>
<para>
- Comparison of the centroid (turquoise point) and geometric
- median (red point) of a four-point MultiPoint (yellow points).
+ Comparison of the geometric median (red)
+ and centroid (turquoise) of a MultiPoint.
</para>
</caption>
</mediaobject>
@@ -1152,14 +1152,15 @@ FROM (
</para>
<programlisting>
WITH test AS (
-SELECT 'MULTIPOINT((0 0), (1 1), (2 2), (200 200))'::geometry geom)
+SELECT 'MULTIPOINT((10 10), (10 40), (40 10), (190 190))'::geometry geom)
SELECT
ST_AsText(ST_Centroid(geom)) centroid,
ST_AsText(ST_GeometricMedian(geom)) median
FROM test;
+
centroid | median
--------------------+----------------------------------------
- POINT(50.75 50.75) | POINT(1.9761550281255 1.9761550281255)
+ POINT(62.5 62.5) | POINT(25.01778421249728 25.01778421249728)
(1 row)
</programlisting>
</refsection>
-----------------------------------------------------------------------
Summary of changes:
doc/html/image_src/Makefile.in | 1 -
doc/html/image_src/st_generatepoints01.wkt | 1 +
doc/html/image_src/st_generatepoints02.wkt | 2 --
doc/html/image_src/st_geometricmedian01.wkt | 4 ++--
doc/reference_processing.xml | 11 ++++++-----
5 files changed, 9 insertions(+), 10 deletions(-)
delete mode 100644 doc/html/image_src/st_generatepoints02.wkt
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