OutOfMemory Error- GeotiffTranslate

[Akimh]

Hello,
I tried to use your GeotiffTranslate app, but I got an OutOfMemoryError (java heap space). I encreased the heap space to 2048 MB but I got the same error. My Ifsar-DEM (.tif format, 16 bit int, grey band) has a size of 350 Mb.
Java version 8 (32 bit) on a win 7 64 bit machine.
See screenshot.
.
Thank you.

[kaktus40]

Hello,
You have a very very big image. If you have installed gdal, could you
send me the return of this command:
gdalinfo /yourDEM//./
I fear you'll have to cut your image and make a folder with more
manageable images.

For your information a pixel needs 4_8 bits=32 bits to be stored in
memory. If the resolution of your image is 3000 X 3000 ,you'll need at
least 3000_3000 *32=275 Mo. For the good work of java, it's around 300
Mo. Also GeotiffTranslate works on two images, the first is the old
image and the second the new so finally you'll need 600 Mo of memory to
work with an image of 3000 X 3000 pixels...

On 28/04/2015 20:47, Akimh wrote:

Hello,
I tried to use your GeotiffTranslate app, but I got an
OutOfMemoryError (java heap space). I encreased the heap space to 2048
MB but I got the same error. My Ifsar-DEM has a size of 350 Mb.

Java version 8 (32 bit) on a win 7 64 bit machine.
See screenshot.
oomerror
https://cloud.githubusercontent.com/assets/12158315/7377552/9193675c-ed93-11e4-98b7-07becbccdbf6.JPG.
Thank you.

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#8.

[Akimh]

Hello,
thank you for your quick reply.
Screenshot of the result of the gdalinfo:

As you mentioned, I used a smaller part of my image and it worked perfect.
Thank you very much.

[kaktus40]

It's really a big size => you must cut the size of your original tif!!

On 29/04/2015 20:34, Akimh wrote:

Hello,
thank you for your quick reply.
Screenshot of the result of the gdalinfo:

gdalinfo_dem
https://cloud.githubusercontent.com/assets/12158315/7398394/329ee3de-ee5b-11e4-8045-9830864acd19.JPG

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#8 (comment).

[Akimh]

Thank you for your support and I have another question.
When I try to load the elevation data into a Cesium scene, I got a black view.

My Code :

var ol3d = new olcs.OLCesium({map: map});
var scene = ol3d.getCesiumScene();

    var terrainProvider = new Cesium.GeoserverTerrainProvider({            
    url : "http://localhost:8080/geoserver/Denali/wms",
    layerName: 'Denali:Denali_IfsarDEM_Cut',
        styleName:"raster",            
        waterMask: false        
});        
scene.terrainProvider = terrainProvider;
ol3d.setEnabled(false);

[kaktus40]

Sorry, I can't help you about open-layer Cesium library. Did you test
your terrain in a classical Cesium?

On 01/05/2015 22:39, Akimh wrote:

Thank you for your support and I have another question.
When I try to load the elevation data into a Cesium scene, I got a
black view.
black view
https://cloud.githubusercontent.com/assets/12158315/7436902/904ab0ae-effe-11e4-955e-6664a079c300.JPG

My Code :

var ol3d = new olcs.OLCesium({map: map});
var scene = ol3d.getCesiumScene();

| var terrainProvider = new Cesium.GeoserverTerrainProvider({
url : "http://localhost:8080/geoserver/Denali/wms",
layerName: 'Denali:Denali_IfsarDEM_Cut',
styleName:"raster",
waterMask: false
});
scene.terrainProvider = terrainProvider;
ol3d.setEnabled(false);
|

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#8 (comment).

[Akimh]

I will give it a try. Thank you.