Hi Michaël,
I've done some tests on memory usage and, as expected, the memory
footprint increases if the Raster variable is non-static. I tried
loading 4 rasters, 2 esri ASCII grid, 1 esri FLT grid and 1 tif, all of
them having 4728 columns and 5815 rows. The memory used by OJ went from
1.1 GB up to 1.3 GB.
By the way, I've noticed also another static variable in
RasterImageLayer that apparently shouldn't be so: noDataValue, maybe I
should spend some time checking this aspect too.
And, still need to check the ReferencedImagesLayer stuff.
I'll get back to you soon.
Alberto
On 07/10/2014 08:39, Michael Michaud wrote:
Hi Alberto, Stefan,
Just commit Alberto's patch (r4064)
please test,
Michaël
Dear OJ developers,
after a break (of a few years...), I'm back on OJ development, still
focussed on raster management and close to be ready to make available
to the community an improved version of the "raster color editor",
allowing the use of ramps, intervals, single colour values...
Nevertheless, there is a design issue in the class
org.openjump.core.rasterimage.RasterImageLayer
that is giving me some problems. The point is that the Raster
variable "rasterData" is static. As a consequence, it gets shared
across all the instances of RasterImageLayer, making thinks a bit
awkward. Do you see any problem in turning rasterData into
non-static? I've tested this change, and everything appears to be
working alright. You can find attached the modified
RasterImageLayer.java
Cheers
Alberto
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