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geotiff with model transform

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David R. Burken

geotiff with model transform

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Hi Garrett,

A couple of things.

We had an infinite loop in ossimTerraSarTiffReader::getImageGeometry.  Fixed that in svn.

I have a TerraSAR tiff that is map projected utm.  It has a model_transform.  When the transform is set we can't zoom out.  I think this is a new issue.  I'll post the tags below.  Also I can put on ftp site.

Also I see now that the ossim-info -p gsd is nan now.  I think that's a new thing.

Dave

$ ossim-info -d -p IMAGE_HH_SRA_strip_005.tif
tiff.version: 42(classic)
tiff.byte_order: big_endian
tiff.directory_offset: 657173120
tiff.image0.image_width: 15166
tiff.image0.image_length: 21666
tiff.image0.bits_per_sample: 16
tiff.image0.compression: false
tiff.image0.photo_interpretation: MINISBLACK
tiff.image0.orientation: top_left
tiff.image0.samples_per_pixel: 1
tiff.image0.rows_per_strip: 1
tiff.image0.planar_configuration: single image plane
tiff.image0.model_transform: 3.000000000000000 0.000000000000000 0.000000000000000 660000.000000000000000 0.000000000000000 -3.000000000000000 0.000000000000000 3279000.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 1.000000000000000
tiff.image0.model_type: projected
tiff.image0.raster_type: pixels_is_point
tiff.image0.citation: Zone utm15N|
tiff.image0.gcs_type: 4326
tiff.image0.pcs_code: 32615
tiff.image0.coord_trans_code: 1
tiff.image0.coord_trans: TransverseMercator
tiff.image0.linear_units_code: 9001
tiff.image0.linear_units: meters
tiff.image0.origin_longitude: -93.000000000000000
tiff.image0.origin_latitude: 0.000000000000000
tiff.image0.false_easting: 500000.000000000000000
tiff.image0.false_northing: 0.000000000000000
tiff.image0.scale_factor: 0.999600000000000

image0.decimal_degrees_per_pixel_lat:  2.70652970887284e-05
image0.decimal_degrees_per_pixel_lon:  3.0972877828429e-05
image0.decimations:  (1,1) (0.5,0.5) (0.25,0.25) (0.125,0.125) (0.0625,0.0625) (0.03125,0.03125) (0.015625,0.015625) (0.0078125,0.0078125) (0.00390625,0.00390625) (0.001953125,0.001953125)
image0.entry:  0
image0.gsd:  (nan,nan)
image0.ll_lat:  29.0442745561708
image0.ll_lon:  -91.3567075570856
image0.lr_lat:  29.0377461347395
image0.lr_lon:  -90.8896805618714
image0.meters_per_pixel_x:  3
image0.meters_per_pixel_y:  3
image0.projection.central_meridian:  -93
image0.projection.datum:  WGE
image0.projection.elevation_lookup_flag:  0
image0.projection.ellipse_code:  WE
image0.projection.ellipse_name:  WGS 84
image0.projection.false_easting_northing:  (500000,0)
image0.projection.false_easting_northing_units:  meters
image0.projection.hemisphere:  N
image0.projection.image_model_transform_matrix:  3 0 0 660000 0 -3 0 3279000 0 0 1 0 0 0 0 1
image0.projection.image_model_transform_unit:  meters
image0.projection.major_axis:  6378137
image0.projection.minor_axis:  6356752.3142
image0.projection.origin_latitude:  0
image0.projection.pcs_code:  32615
image0.projection.pixel_scale_units:  meters
image0.projection.pixel_scale_xy:  (3,3)
image0.projection.tie_point_units:  meters
image0.projection.tie_point_xy:  (660000,3279000)
image0.projection.type:  ossimUtmProjection
image0.projection.zone:  15
image0.tie_point_lat:  29.6306442175981
image0.tie_point_lon:  -91.3472739587137
image0.type:  ossimImageGeometry
image0.ul_lat:  29.6306442175981
image0.ul_lon:  -91.3472739587137
image0.ur_lat:  29.6239582692264
image0.ur_lon:  -90.8775702664456
number_entries:  1

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Garrett Potts

Re: geotiff with model transform

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Hello Dave:

Actually if the projection is copied verbatim to the output view then  
that is probably why it can't scale for the matrix transform has no  
scale factor.  We will have to make it an identity and get rid of the  
matrix transform on the view side for the ossimMapProjection and you  
should then get scaling.

About the GSD it is probably from the ossimImageGeometry and not sure  
if the getGsd is getting called to recalculate it.  We might need to  
add a getGsd in the save state of ossimIamgeGoemetry and that should  
fix that.



Take care

Garrett

On Oct 27, 2009, at 12:01 PM, David R. Burken wrote:

> Hi Garrett,
>
> A couple of things.
>
> We had an infinite loop in  
> ossimTerraSarTiffReader::getImageGeometry.  Fixed that in svn.
>
> I have a TerraSAR tiff that is map projected utm.  It has a  
> model_transform.  When the transform is set we can't zoom out.  I  
> think this is a new issue.  I'll post the tags below.  Also I can  
> put on ftp site.
>
> Also I see now that the ossim-info -p gsd is nan now.  I think  
> that's a new thing.
>
> Dave
>
> $ ossim-info -d -p IMAGE_HH_SRA_strip_005.tif
> tiff.version: 42(classic)
> tiff.byte_order: big_endian
> tiff.directory_offset: 657173120
> tiff.image0.image_width: 15166
> tiff.image0.image_length: 21666
> tiff.image0.bits_per_sample: 16
> tiff.image0.compression: false
> tiff.image0.photo_interpretation: MINISBLACK
> tiff.image0.orientation: top_left
> tiff.image0.samples_per_pixel: 1
> tiff.image0.rows_per_strip: 1
> tiff.image0.planar_configuration: single image plane
> tiff.image0.model_transform: 3.000000000000000 0.000000000000000  
> 0.000000000000000 660000.000000000000000 0.000000000000000  
> -3.000000000000000 0.000000000000000 3279000.000000000000000  
> 0.000000000000000 0.000000000000000 0.000000000000000  
> 0.000000000000000 0.000000000000000 0.000000000000000  
> 0.000000000000000 1.000000000000000
> tiff.image0.model_type: projected
> tiff.image0.raster_type: pixels_is_point
> tiff.image0.citation: Zone utm15N|
> tiff.image0.gcs_type: 4326
> tiff.image0.pcs_code: 32615
> tiff.image0.coord_trans_code: 1
> tiff.image0.coord_trans: TransverseMercator
> tiff.image0.linear_units_code: 9001
> tiff.image0.linear_units: meters
> tiff.image0.origin_longitude: -93.000000000000000
> tiff.image0.origin_latitude: 0.000000000000000
> tiff.image0.false_easting: 500000.000000000000000
> tiff.image0.false_northing: 0.000000000000000
> tiff.image0.scale_factor: 0.999600000000000
>
> image0.decimal_degrees_per_pixel_lat:  2.70652970887284e-05
> image0.decimal_degrees_per_pixel_lon:  3.0972877828429e-05
> image0.decimations:  (1,1) (0.5,0.5) (0.25,0.25) (0.125,0.125)  
> (0.0625,0.0625) (0.03125,0.03125) (0.015625,0.015625)  
> (0.0078125,0.0078125) (0.00390625,0.00390625)  
> (0.001953125,0.001953125)
> image0.entry:  0
> image0.gsd:  (nan,nan)
> image0.ll_lat:  29.0442745561708
> image0.ll_lon:  -91.3567075570856
> image0.lr_lat:  29.0377461347395
> image0.lr_lon:  -90.8896805618714
> image0.meters_per_pixel_x:  3
> image0.meters_per_pixel_y:  3
> image0.projection.central_meridian:  -93
> image0.projection.datum:  WGE
> image0.projection.elevation_lookup_flag:  0
> image0.projection.ellipse_code:  WE
> image0.projection.ellipse_name:  WGS 84
> image0.projection.false_easting_northing:  (500000,0)
> image0.projection.false_easting_northing_units:  meters
> image0.projection.hemisphere:  N
> image0.projection.image_model_transform_matrix:  3 0 0 660000 0 -3 0  
> 3279000 0 0 1 0 0 0 0 1
> image0.projection.image_model_transform_unit:  meters
> image0.projection.major_axis:  6378137
> image0.projection.minor_axis:  6356752.3142
> image0.projection.origin_latitude:  0
> image0.projection.pcs_code:  32615
> image0.projection.pixel_scale_units:  meters
> image0.projection.pixel_scale_xy:  (3,3)
> image0.projection.tie_point_units:  meters
> image0.projection.tie_point_xy:  (660000,3279000)
> image0.projection.type:  ossimUtmProjection
> image0.projection.zone:  15
> image0.tie_point_lat:  29.6306442175981
> image0.tie_point_lon:  -91.3472739587137
> image0.type:  ossimImageGeometry
> image0.ul_lat:  29.6306442175981
> image0.ul_lon:  -91.3472739587137
> image0.ur_lat:  29.6239582692264
> image0.ur_lon:  -90.8775702664456
> number_entries:  1
>
> ------------------------------------------------------------------------------
> Come build with us! The BlackBerry(R) Developer Conference in SF, CA
> is the only developer event you need to attend this year. Jumpstart  
> your
> developing skills, take BlackBerry mobile applications to market and  
> stay
> ahead of the curve. Join us from November 9 - 12, 2009. Register now!
> http://p.sf.net/sfu/devconference
> _______________________________________________
> www.ossim.org
> Ossim-developer mailing list
> [hidden email]
> https://lists.sourceforge.net/lists/listinfo/ossim-developer


------------------------------------------------------------------------------
Come build with us! The BlackBerry(R) Developer Conference in SF, CA
is the only developer event you need to attend this year. Jumpstart your
developing skills, take BlackBerry mobile applications to market and stay
ahead of the curve. Join us from November 9 - 12, 2009. Register now!
http://p.sf.net/sfu/devconference
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