Changes between Version 18 and Version 19 of BufferRobustness

Timestamp:

Dec 7, 2011, 12:39:58 AM (12 years ago)

Author:

strk

Comment:

Add info about more differences in MCIndexSnapRounder

BufferRobustness

@@ -26 +26 @@
 (ii) Output seems to have lost way too much precision. [[BR]]
 
-= Noding = 
+
+
+= MCIndexSnapRounder =
+
+Comparing operations of MCIndexSnapRounder against bufrob4.wkt noding.
+After the fix to HotPixel in r3528 there are still differences in the
+number of coordinates found for each noded edge:
+
+GEOS computes 25 edges 3 of which composed by 3 vertices and 22 of 2 vertices.
+
+JTS computes 25 edges 3 of which composed by 3 vertices, 3 by 1 vertex and 19 by 2.
+
+= ScaledNoder = 
+
+'''NOTE''' this is valid as of before r3528, should be rechecked now. Focus is on MCIndexSnapRounder now.
 
 Having detected a difference in noding I've produced a testcase to read a geometry and perform noding on its linework.
@@ -39 +53 @@
 [[Image(JTS_GEOS_noding.png)]]
 
-= MCIndexSnapRounder =
-
-Comparing operations of MCIndexSnapRounder against bufrob4.wkt noding. This may explain why there's more noding being performed by JTS ?
-
-GEOS:
-{{{
-Found 0 intersectios
-Computing vertex snap against 1 edges
- No node added for vertex 0 (99739.7 -2.23922e+06)
- No node added for vertex 1 (99739.9 -2.23922e+06)
- No node added for vertex 2 (99739.9 -2.23922e+06)
- No node added for vertex 3 (99739.9 -2.23922e+06)
- No node added for vertex 4 (99739.9 -2.23922e+06)
- No node added for vertex 5 (99739.9 -2.23922e+06)
- No node added for vertex 6 (99739.9 -2.23922e+06)
- No node added for vertex 7 (99739.9 -2.23922e+06)
- No node added for vertex 8 (99740 -2.23922e+06)
- No node added for vertex 9 (99739.9 -2.23922e+06)
- No node added for vertex 10 (99739.9 -2.23922e+06)
- No node added for vertex 11 (99739.9 -2.23922e+06)
- No node added for vertex 12 (99739.9 -2.23922e+06)
- No node added for vertex 13 (99739.8 -2.23922e+06)
- No node added for vertex 14 (99739.8 -2.23922e+06)
- No node added for vertex 15 (99739.7 -2.23922e+06)
- No node added for vertex 16 (99739.9 -2.23922e+06)
- No node added for vertex 17 (99739.8 -2.23922e+06)
- No node added for vertex 18 (99739.8 -2.23922e+06)
-}}}
-
-JTS:
-{{{
-Found 0 intersections
-Computing vertex snaps againts 1 edges
- No node added for vertex 0 ((99739.70596, -2239218.0625, NaN))
- Node added for vertex 1 ((99739.85604000001, -2239218.21258, NaN))
- Node added for vertex 2 ((99739.85605, -2239218.21258, NaN))
- Node added for vertex 3 ((99739.85605, -2239218.21258, NaN))
- Node added for vertex 4 ((99739.86851000001, -2239218.21258, NaN))
- Node added for vertex 5 ((99739.86851000001, -2239218.20012, NaN))
- Node added for vertex 6 ((99739.86851000001, -2239218.20012, NaN))
- Node added for vertex 7 ((99739.86851000001, -2239218.04, NaN))
- Node added for vertex 8 ((99739.95848, -2239218.11015, NaN))
- Node added for vertex 9 ((99739.86851000001, -2239218.20012, NaN))
- Node added for vertex 10 ((99739.86851000001, -2239218.20012, NaN))
- Node added for vertex 11 ((99739.85605, -2239218.21258, NaN))
- Node added for vertex 12 ((99739.85605, -2239218.21258, NaN))
- Node added for vertex 13 ((99739.80901000001, -2239218.25961, NaN))
- Node added for vertex 14 ((99739.80901000001, -2239218.25961, NaN))
- Node added for vertex 15 ((99739.68863, -2239218.3800000004, NaN))
- Node added for vertex 16 ((99739.86204, -2239218.31264, NaN))
- Node added for vertex 17 ((99739.80901000001, -2239218.25961, NaN))
- Node added for vertex 18 ((99739.80901000001, -2239218.25961, NaN))
-}}}
-
 = Resources =