"Kyler Laird" wrote in message
...
"John Clonts" writes:
Thanks for the tips. I found that when I use the "raw data" it does work
as
you say (http://aviationtoolbox.org/raw_data/...onals/current/).
Is
this what you are using?
But I have trouble when I try to use one of Kyler's "processed images"
from
https://aviationtoolbox.org/Members/...s/map_explorer
I have the problems that J.G. diagnoses below.
TIFF Directory at offset 0x15ff3e
Image Width: 800 Image Length: 600
Bits/Sample: 8
Sample Format: unsigned integer
Compression Scheme: None
Photometric Interpretation: RGB color
Samples/Pixel: 3
Rows/Strip: 10
Planar Configuration: separate image planes
Tag 33550: 128.000000,128.000000,0.000000
.
.
It's that Planar Configuration setting of "separate image planes"
that is confusing Ozi. Ozi wants to see "single image plane".
Ah ha! That was causing problems for ImageMagick too. I just didn't
realize that's what was doing it.
http://www.remotesensing.org/gdal/frmt_gtiff.html
INTERLEAVE=[BAND,PIXEL]: By default TIFF files with band
interleaving (PLANARCONFIG_SEPARATE in TIFF terminology) are
created. These are slightly more efficient for some purposes,
but some applications only support pixel interleaved TIFF
files. In these cases pass INTERLEAVE=PIXEL to produce pixel
interleaved TIFF files (PLANARCONFIG_CONTIG in TIFF
terminology).
So...I added "INTERLEAVE=PIXEL" and now tiffinfo reports this.
TIFF Directory at offset 0x580a1e
Image Width: 1600 Image Length: 1200
Bits/Sample: 8
Sample Format: unsigned integer
Compression Scheme: None
Photometric Interpretation: RGB color
Samples/Pixel: 3
Rows/Strip: 1
Planar Configuration: single image plane
ImageMagick displays a beautiful image now too.
Does that solve the problem you had?
Thank you for the report.
Kyler,
Thanks that does solve the image display problem!
The other problem remains however: the georeference information is not read
in successfully by Oziexplorer:
The example which works is e.g. the San Antonio Sectional at
http://aviationtoolbox.org/raw_data/...73%20North.tif
:
Its listgeo info is:
Geotiff_Information:
Version: 1
Key_Revision: 1.0
Tagged_Information:
ModelTiepointTag (2,3):
0 0 0
-364619.149 238513.594 0
ModelPixelScaleTag (1,3):
63.781518 63.781518 0
End_Of_Tags.
Keyed_Information:
GTModelTypeGeoKey (Short,1): ModelTypeProjected
GTRasterTypeGeoKey (Short,1): RasterPixelIsArea
GTCitationGeoKey (Ascii,235): "IMAGINE GeoTIFF Support
Copyright 1991 - 2001 by ERDAS, Inc. All Rights Reserved
@(#)$RCSfile: egtf.c $ $Revision: 1.9.2.4 $ $Date: 2002/01/24 16:43:13Z $
Projection Name = Lambert Conformal Conic
Units = meters
GeoTIFF Units = meters"
GeographicTypeGeoKey (Short,1): GCS_NAD83
ProjectedCSTypeGeoKey (Short,1): User-Defined
PCSCitationGeoKey (Ascii,192): "IMAGINE GeoTIFF Support
Copyright 1991 - 2001 by ERDAS, Inc. All Rights Reserved
@(#)$RCSfile: egtf.c $ $Revision: 1.9.2.4 $ $Date: 2002/01/24 16:43:13Z $
Projection = Lambert Conformal Conic"
ProjectionGeoKey (Short,1): User-Defined
ProjCoordTransGeoKey (Short,1): CT_LambertConfConic_2SP
ProjLinearUnitsGeoKey (Short,1): Linear_Meter
ProjStdParallel1GeoKey (Double,1): 30.6666667
ProjStdParallel2GeoKey (Double,1): 25.3333333
ProjNatOriginLongGeoKey (Double,1): -100
ProjFalseOriginLongGeoKey (Double,1): 0
ProjFalseOriginLatGeoKey (Double,1): 30.125
ProjFalseOriginEastingGeoKey (Double,1): 0
ProjFalseOriginNorthingGeoKey (Double,1): 0
End_Of_Keys.
End_Of_Geotiff.
Projection Method: CT_LambertConfConic_2SP
ProjStdParallel1GeoKey: 30.666667 ( 30d40' 0.00"N)
ProjStdParallel2GeoKey: 25.333333 ( 25d20' 0.00"N)
ProjFalseOriginLatGeoKey: 30.125000 ( 30d 7'30.00"N)
ProjFalseOriginLongGeoKey: -100.000000 (100d 0' 0.00"W)
ProjFalseEastingGeoKey: 0.000000
ProjFalseNorthingGeoKey: 0.000000
GCS: 4269/NAD83
Datum: 6269/North American Datum 1983
Ellipsoid: 7019/GRS 1980 (6378137.00,6356752.31)
Prime Meridian: 8901/Greenwich (0.000000/ 0d 0' 0.00"E)
Projection Linear Units: 9001/metre (1.000000m)
Corner Coordinates:
Upper Left (-364619.149, 238513.594) (103d51'44.46"W, 32d13'23.18"N)
Lower Left (-364619.149, -26434.831) (103d46'31.88"W, 29d50' 7.76"N)
Upper Right ( 343419.482, 238513.594) ( 96d21'43.48"W, 32d13'44.30"N)
Lower Right ( 343419.482, -26434.831) ( 96d26'37.91"W, 29d50'28.46"N)
Center ( -10599.834, 106039.382) (100d 6'39.75"W, 31d 4'53.35"N)
The example that does not work is:
https://aviationtoolbox.org/Members/...ul_Y=-676347.0
And its listgeo info is:
Geotiff_Information:
Version: 1
Key_Revision: 1.0
Tagged_Information:
ModelTiepointTag (2,3):
0 0 0
216057 -676347 0
ModelPixelScaleTag (1,3):
128 128 0
End_Of_Tags.
Keyed_Information:
GTModelTypeGeoKey (Short,1): ModelTypeProjected
GTRasterTypeGeoKey (Short,1): RasterPixelIsArea
GTCitationGeoKey (Ascii,8): "unnamed"
GeographicTypeGeoKey (Short,1): GCS_NAD83
ProjectedCSTypeGeoKey (Short,1): User-Defined
ProjectionGeoKey (Short,1): User-Defined
ProjCoordTransGeoKey (Short,1): CT_LambertConfConic_2SP
ProjLinearUnitsGeoKey (Short,1): Linear_Meter
ProjStdParallel1GeoKey (Double,1): 38.6666667
ProjStdParallel2GeoKey (Double,1): 33.3333333
ProjFalseEastingGeoKey (Double,1): 0
ProjFalseNorthingGeoKey (Double,1): 0
ProjFalseOriginLongGeoKey (Double,1): -100.583333
ProjFalseOriginLatGeoKey (Double,1): 38
End_Of_Keys.
End_Of_Geotiff.
Projection Method: CT_LambertConfConic_2SP
ProjStdParallel1GeoKey: 38.666667 ( 38d40' 0.00"N)
ProjStdParallel2GeoKey: 33.333333 ( 33d20' 0.00"N)
ProjFalseOriginLatGeoKey: 38.000000 ( 38d 0' 0.00"N)
ProjFalseOriginLongGeoKey: -100.583333 (100d35' 0.00"W)
ProjFalseEastingGeoKey: 0.000000
ProjFalseNorthingGeoKey: 0.000000
GCS: 4269/NAD83
Datum: 6269/North American Datum 1983
Ellipsoid: 7019/GRS 1980 (6378137.00,6356752.31)
Prime Meridian: 8901/Greenwich (0.000000/ 0d 0' 0.00"E)
Projection Linear Units: 9001/metre (1.000000m)
Corner Coordinates:
Upper Left ( 216057.000,-676347.000) ( 98d18'10.89"W, 31d52'40.87"N)
Lower Left ( 216057.000,-753147.000) ( 98d19'18.60"W, 31d11'12.79"N)
Upper Right ( 318457.000,-676347.000) ( 97d13'22.77"W, 31d51' 4.80"N)
Lower Right ( 318457.000,-753147.000) ( 97d15' 2.51"W, 31d 9'37.59"N)
Center ( 267257.000,-714747.000) ( 97d46'28.56"W, 31d31'13.34"N)
They both look pretty good to me-- the corner coordinates seem to be there,
etc-- but I don't know anything about all the "false origin" stuff.
Oziexplorer doesn't seem to have trouble with the Lambert projection in the
first example though.
I am copying this to the OziUsers List, maybe J.G. can give some more
assistance?
Thanks!
John Clonts
Temple, Texas
N7NZ