[geos-commits] [SCM] GEOS branch 3.9 updated. 17658cbe9c48d6ddc8856201944ee6e67b701a1a

[git at osgeo.org]

This is an automated email from the git hooks/post-receive script. It was
generated because a ref change was pushed to the repository containing
the project "GEOS".

The branch, 3.9 has been updated
       via  17658cbe9c48d6ddc8856201944ee6e67b701a1a (commit)
       via  bc9385367ba75025ec6f7ab7b1172fa8e51eb1f1 (commit)
      from  1a3eb3f0a8a10278236dc19280a7f5249be4e75c (commit)

Those revisions listed above that are new to this repository have
not appeared on any other notification email; so we list those
revisions in full, below.

- Log -----------------------------------------------------------------
commit 17658cbe9c48d6ddc8856201944ee6e67b701a1a
Author: Paul Ramsey <pramsey at cleverelephant.ca>
Date:   Tue Oct 19 14:43:06 2021 -0700

    News entry about improvement in EdgeRing performance

diff --git a/NEWS b/NEWS
index b606e2125..df5521027 100644
--- a/NEWS
+++ b/NEWS
@@ -13,6 +13,7 @@ Changes in 3.9.2
   - Fix DiscreteFrechetDistance to use initial points of input lines (#1128, Martin Davis)
   - Avoid stack overflow in KdTree::queryNode (Even Roualt)
   - Avoid raising double overflow signals in distance calcs (Paul Ramsey)
+  - Fix performance issue in buffer building (Paul Ramsey)
 
 
 Changes in 3.9.1

commit bc9385367ba75025ec6f7ab7b1172fa8e51eb1f1
Author: Paul Ramsey <pramsey at cleverelephant.ca>
Date:   Tue Oct 19 12:30:19 2021 -0700

    Allow std::vector to control its own capacity during in-fill by EdgeRing traversal. Removes large performance issue in buffer against Australia case.

diff --git a/src/geomgraph/EdgeRing.cpp b/src/geomgraph/EdgeRing.cpp
index 551520932..319610a0b 100644
--- a/src/geomgraph/EdgeRing.cpp
+++ b/src/geomgraph/EdgeRing.cpp
@@ -316,7 +316,6 @@ EdgeRing::addPoints(Edge* edge, bool isForward, bool isFirstEdge)
     assert(edgePts);
     size_t numEdgePts = edgePts->getSize();
 
-    pts.reserve(pts.size() + numEdgePts);
     if(isForward) {
         if(isFirstEdge) {
             edgePts->toVector(pts);

-----------------------------------------------------------------------

Summary of changes:
 NEWS                       | 1 +
 src/geomgraph/EdgeRing.cpp | 1 -
 2 files changed, 1 insertion(+), 1 deletion(-)


hooks/post-receive
-- 
GEOS