| Version 3 (modified by , 12 years ago) ( diff ) |
|---|
The following table summarizes results of running a buffer against the dataset in source:trunk/tests/xmltester/tests/safe/buffer-1.01.xml
| dist | GEOS (b) OLD reduc stratg | GEOS (b) NEW reduc stratg | JTS (c) |
| 0.35 | ok on 1st attempt, no reduction | ok on 1st attempt, no reduction | ok on 1st attempt, no reduction |
| 0.75 | ok on 1st reduction (1e10) | ok on 1st reduction (1e5) | ok on 1st reduction (1e5) |
| 1.01 | ok on 2nd reduction (1e9) | fail on 5th reduction (1e1) | ok on 1st reduction (1e5) |
| 1.1 (a) | ok on 2nd reduction (1e9) | ok on 1st reduction (1e5) | ok on 1st reduction (1e5) |
| 1.5 | ok on 2nd reduction (1e9) | fail on 6th reduction (1e0) | fail on 1st reduction (1e5) |
| 2 | fail on 10th reduction (1e1) | fail on 6th reduction (1e0) | fail on 1st reduction (1e5) |
| 5 | fail on 10th reduction (1e1) | fail on 6th reduction (1e0) | fail on 1st reduction (1e5) |
| 10 | fail on 10th reduction (1e1) | fail on 7th reduction (1e-1) | ok on 1st reduction (1e5) |
(a) aka TestBufferJagged.xml
(b) GEOS 3.3.2SVN r3523 / 3.4.0SVN r3524
(c) JTS rev.480
Attachments (7)
-
diffnoding.wkt.gz
(24.6 KB
) - added by 12 years ago.
offsetcurve produced by both JTS and GEOS when buffering input by 1.01 distance. GEOS and JTS compute edges depth differently starting from this same input.
-
bufrob3.wkt
(7.8 KB
) - added by 12 years ago.
Using ScaledNoder with scale=1e5 nodes this with edges: JTS 333, GEOS 330
-
bufrob3_5.wkt
(3.0 KB
) - added by 12 years ago.
further simplification: 147 edges with JTS, 146 with GEOS
-
buffer-tests.zip
(63.3 KB
) - added by 12 years ago.
All buffer tests, with correct expected results
-
bufrob3_5_5.wkt
(3.8 KB
) - added by 12 years ago.
Version of bufrob3_5 with all coordinates snapped to a 1e-5 grid
-
ScaledNoderTest.java
(5.5 KB
) - added by 12 years ago.
Updated version of ScaledNoderTest for JTS, supports both WKT and HexWKB in input
-
bufrob4.wkt
(821 bytes
) - added by 12 years ago.
14 edges with JTS, 13 with GEOS -- input snapped to 1e-5
Download all attachments as: .zip
Note:
See TracWiki
for help on using the wiki.
