GeoTools

Mosaic background odd behaviour

Details

  • Type: Bug Bug
  • Status: Closed Closed
  • Priority: Major Major
  • Resolution: Fixed
  • Affects Version/s: None
  • Fix Version/s: 2.5.8, 2.6-M3
  • Component/s: imagemosaic plugin
  • Labels:
    None

Description

Mosaic background behaviour is odd.
The first two attachments, mosaicBackground and mosaicTransparent, show what happens with an irregularly shaped mosaic when moving around an "inner corner of it":

  • mosaicBackGround has on the top two tiles that keep the black color of the background everywhere behind them
  • panning a little down, so that the two tiles are out of the bounds, makes the same area become white

The third image has been generated using the same irregularly shaped mosaic but using OpenLayers in tiled mode, the result is that depending on the tile you might get the black background, a white background, or the "missing image" filler.

Simone, if you want I can try to provide a patch.

  1. mosaicBlackground.jpg
    43 kB
    26/Dec/07 12:21 PM
  2. mosaicTileOddity.jpg
    97 kB
    26/Dec/07 12:20 PM
  3. mosaicTransparent.jpg
    38 kB
    26/Dec/07 12:19 PM

Issue Links

is depended upon by

Bug - A problem which impairs or prevents the functions of the product. GEOT-1606 Allow ImageMoasic to report no data when a raster file is missing

  • Minor - Minor loss of function, or other problem where easy workaround is present.
  • Closed - The issue is considered finished, the resolution is correct. Issues which are not closed can be reopened.

Improvement - An improvement or enhancement to an existing feature or task. GEOT-1641 Mosaic background should default to be transparent

  • Minor - Minor loss of function, or other problem where easy workaround is present.
  • Closed - The issue is considered finished, the resolution is correct. Issues which are not closed can be reopened.
is related to

Improvement - An improvement or enhancement to an existing feature or task. GEOT-1628 Give users possibility to set mosaic background value

  • Minor - Minor loss of function, or other problem where easy workaround is present.
  • Closed - The issue is considered finished, the resolution is correct. Issues which are not closed can be reopened.

Activity

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Andrea Aime added a comment -
Added target component and reassigned to me
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Andrea Aime added a comment - Added target component and reassigned to me
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Simone Giannecchini added a comment -
Added minor temporary fix for the black areas on 2.5.x.
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Simone Giannecchini added a comment - Added minor temporary fix for the black areas on 2.5.x.
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Simone Giannecchini added a comment -
Now the usre can set the mosaic background value via a specific read parameter called BackgroundValues. See here for more info http://docs.geoserver.org/1.7.x/en/user/tutorials/image_mosaic_plugin/imagemosaic.html
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Simone Giannecchini added a comment - Now the usre can set the mosaic background value via a specific read parameter called BackgroundValues. See here for more info http://docs.geoserver.org/1.7.x/en/user/tutorials/image_mosaic_plugin/imagemosaic.html

People

  • Assignee:
    Simone Giannecchini
    Reporter:
    Andrea Aime
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Dates

  • Created:
    Updated:
    Resolved: