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Bug #2348

Rewrite disk based GIS code for speed increase

Added by Dan Higgins almost 13 years ago. Updated over 9 years ago.

Status:
In Progress
Priority:
Normal
Assignee:
Category:
actors
Target version:
Start date:
01/31/2006
Due date:
% Done:

0%

Estimated time:
Bugzilla-Id:
2348

Description

Currently, the java GIS routines for handling ascii grid files uses a
PersistentVector class that was originally created for Morpho when raster are
too large for RAM. This method works but is really quite slow.
A good part of this slowness is probably due to the treatment of the raster data
as Java objects (actually as string arrays).
It is likely that a new approach using Java NIO buffers could greatly speed up
these virtual memory routines. This should be investigated at some point in the
future.
Dan Higgins - Jan 31, 2006

History

#1 Updated by Dan Higgins over 12 years ago

I am moving this to post 1.0 since it is not essential and we have too many other things to do.

#2 Updated by Redmine Admin over 5 years ago

Original Bugzilla ID was 2348

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