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Set coordinate origin to the top left corner
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I have a BMP-picture and I know that it's top left corner has the EPSG:3068 coordinates 35500,24390. I would like to use gdal_polygonize and than calculate the EPSG:3068 coordinates of the produced polygons. But for that I need gdal_polygonize to assume that the top left corner is (0,0) or I need to know at which pixel the actual (0,0) is.
gdalinfo of the picture:
Driver: BMP/MS Windows Device Independent Bitmap
Files: E8256.bmp
Size is 8250, 4090
Coordinate System is `'
Origin = (-1890.000000000000000,1890.000000000000000)
Pixel Size = (3780.000000000000000,-3780.000000000000000)
Corner Coordinates:
Upper Left ( -1890.000, 1890.000)
Lower Left ( -1890.000,-15458310.000)
Upper Right (31183110.000, 1890.000)
Lower Right (31183110.000,-15458310.000)
Center (15590610.000,-7728210.000)
Band 1 Block=8250x1 Type=Byte, ColorInterp=Palette
Color Table (RGB with 256 entries)
0: 0,0,0,255
1: 128,0,0,255
...
as you can see the top left corner is -1890,1890. I want that to become 0,0 OR to know at wich pixel 0,0 is. (Pixel size is the length of 1 pixel in coordinates right?)
gdal coordinates image
asked Dec 23 '14 at 12:21
SelphironSelphiron
3791421
add a comment |
I have a BMP-picture and I know that it's top left corner has the EPSG:3068 coordinates 35500,24390. I would like to use gdal_polygonize and than calculate the EPSG:3068 coordinates of the produced polygons. But for that I need gdal_polygonize to assume that the top left corner is (0,0) or I need to know at which pixel the actual (0,0) is.
gdalinfo of the picture:
Driver: BMP/MS Windows Device Independent Bitmap
Files: E8256.bmp
Size is 8250, 4090
Coordinate System is `'
Origin = (-1890.000000000000000,1890.000000000000000)
Pixel Size = (3780.000000000000000,-3780.000000000000000)
Corner Coordinates:
Upper Left ( -1890.000, 1890.000)
Lower Left ( -1890.000,-15458310.000)
Upper Right (31183110.000, 1890.000)
Lower Right (31183110.000,-15458310.000)
Center (15590610.000,-7728210.000)
Band 1 Block=8250x1 Type=Byte, ColorInterp=Palette
Color Table (RGB with 256 entries)
0: 0,0,0,255
1: 128,0,0,255
...
as you can see the top left corner is -1890,1890. I want that to become 0,0 OR to know at wich pixel 0,0 is. (Pixel size is the length of 1 pixel in coordinates right?)
gdal coordinates image
asked Dec 23 '14 at 12:21
SelphironSelphiron
3791421
1
Do you have also some other file that records the georeferencing? According to driver manual page gdal.org/frmt_bmp.html GDAL is searching for world file which have extension bpw, .bmpw or .wld.
– user30184
Dec 23 '14 at 21:43
I don't have a worldfile but maybe I could make one? As I said I know the corner points in EPSG:3068. But gdal_polygonize gives me -1890,1890 for a point in the upper left corner and -1890,-15458310 for a point in the lower left corner. I want the first one to become (0,0) and the second one (0,4090)
– Selphiron
Dec 24 '14 at 9:59
1
Perhaps some aux.xml file then? There must be something because plain bmp file does not hold metadata about origin and pixel size. Example:gdalinfo bmp_test.bmp Driver: BMP/MS Windows Device Independent Bitmap Files: bmp_test.bmp Size is 475, 373 Coordinate System is "" Corner Coordinates: Upper Left ( 0.0, 0.0) Lower Left ( 0.0, 373.0) Upper Right ( 475.0, 0.0) Lower Right ( 475.0, 373.0) Center ( 237.5, 186.5) Band 1 Block=475x1 Type=Byte, ColorInterp=Red Band 2 Block=475x1 Type=Byte, ColorInterp=Green Band 3 Block=475x1 Type=Byte, ColorInterp=Blue
– user30184
Dec 24 '14 at 11:09
nope. I had a PNG and I opened it with MS Paint saved it as a 256 BMP ^^ But I solved it. I used gdal_translate -a_ullr 0 0 8250 4090 -of "BMP" source.bmp target.bmp Thx for your efforts!
– Selphiron
Dec 24 '14 at 15:09
1
If you solved your question, add the answer in the answer box. See gis.stackexchange.com/help/self-answer. Tks.
– Andre Silva
7 hours ago
add a comment |
I have a BMP-picture and I know that it's top left corner has the EPSG:3068 coordinates 35500,24390. I would like to use gdal_polygonize and than calculate the EPSG:3068 coordinates of the produced polygons. But for that I need gdal_polygonize to assume that the top left corner is (0,0) or I need to know at which pixel the actual (0,0) is.
gdalinfo of the picture:
Driver: BMP/MS Windows Device Independent Bitmap
Files: E8256.bmp
Size is 8250, 4090
Coordinate System is `'
Origin = (-1890.000000000000000,1890.000000000000000)
Pixel Size = (3780.000000000000000,-3780.000000000000000)
Corner Coordinates:
Upper Left ( -1890.000, 1890.000)
Lower Left ( -1890.000,-15458310.000)
Upper Right (31183110.000, 1890.000)
Lower Right (31183110.000,-15458310.000)
Center (15590610.000,-7728210.000)
Band 1 Block=8250x1 Type=Byte, ColorInterp=Palette
Color Table (RGB with 256 entries)
0: 0,0,0,255
1: 128,0,0,255
...
as you can see the top left corner is -1890,1890. I want that to become 0,0 OR to know at wich pixel 0,0 is. (Pixel size is the length of 1 pixel in coordinates right?)
gdal coordinates image
asked Dec 23 '14 at 12:21
SelphironSelphiron
3791421
I have a BMP-picture and I know that it's top left corner has the EPSG:3068 coordinates 35500,24390. I would like to use gdal_polygonize and than calculate the EPSG:3068 coordinates of the produced polygons. But for that I need gdal_polygonize to assume that the top left corner is (0,0) or I need to know at which pixel the actual (0,0) is.
gdalinfo of the picture:
Driver: BMP/MS Windows Device Independent Bitmap
Files: E8256.bmp
Size is 8250, 4090
Coordinate System is `'
Origin = (-1890.000000000000000,1890.000000000000000)
Pixel Size = (3780.000000000000000,-3780.000000000000000)
Corner Coordinates:
Upper Left ( -1890.000, 1890.000)
Lower Left ( -1890.000,-15458310.000)
Upper Right (31183110.000, 1890.000)
Lower Right (31183110.000,-15458310.000)
Center (15590610.000,-7728210.000)
Band 1 Block=8250x1 Type=Byte, ColorInterp=Palette
Color Table (RGB with 256 entries)
0: 0,0,0,255
1: 128,0,0,255
...
as you can see the top left corner is -1890,1890. I want that to become 0,0 OR to know at wich pixel 0,0 is. (Pixel size is the length of 1 pixel in coordinates right?)
gdal coordinates image
gdal coordinates image
asked Dec 23 '14 at 12:21
SelphironSelphiron
3791421
asked Dec 23 '14 at 12:21
SelphironSelphiron
3791421
edited Dec 23 '14 at 13:19
Selphiron
asked Dec 23 '14 at 12:21
SelphironSelphiron
3791421
asked Dec 23 '14 at 12:21
SelphironSelphiron
3791421
asked Dec 23 '14 at 12:21
SelphironSelphiron
3791421
3791421
1
Do you have also some other file that records the georeferencing? According to driver manual page gdal.org/frmt_bmp.html GDAL is searching for world file which have extension bpw, .bmpw or .wld.
– user30184
Dec 23 '14 at 21:43
I don't have a worldfile but maybe I could make one? As I said I know the corner points in EPSG:3068. But gdal_polygonize gives me -1890,1890 for a point in the upper left corner and -1890,-15458310 for a point in the lower left corner. I want the first one to become (0,0) and the second one (0,4090)
– Selphiron
Dec 24 '14 at 9:59
1
Perhaps some aux.xml file then? There must be something because plain bmp file does not hold metadata about origin and pixel size. Example:gdalinfo bmp_test.bmp Driver: BMP/MS Windows Device Independent Bitmap Files: bmp_test.bmp Size is 475, 373 Coordinate System is "" Corner Coordinates: Upper Left ( 0.0, 0.0) Lower Left ( 0.0, 373.0) Upper Right ( 475.0, 0.0) Lower Right ( 475.0, 373.0) Center ( 237.5, 186.5) Band 1 Block=475x1 Type=Byte, ColorInterp=Red Band 2 Block=475x1 Type=Byte, ColorInterp=Green Band 3 Block=475x1 Type=Byte, ColorInterp=Blue
– user30184
Dec 24 '14 at 11:09
nope. I had a PNG and I opened it with MS Paint saved it as a 256 BMP ^^ But I solved it. I used gdal_translate -a_ullr 0 0 8250 4090 -of "BMP" source.bmp target.bmp Thx for your efforts!
– Selphiron
Dec 24 '14 at 15:09
1
If you solved your question, add the answer in the answer box. See gis.stackexchange.com/help/self-answer. Tks.
– Andre Silva
7 hours ago
add a comment |
1
Do you have also some other file that records the georeferencing? According to driver manual page gdal.org/frmt_bmp.html GDAL is searching for world file which have extension bpw, .bmpw or .wld.
– user30184
Dec 23 '14 at 21:43
I don't have a worldfile but maybe I could make one? As I said I know the corner points in EPSG:3068. But gdal_polygonize gives me -1890,1890 for a point in the upper left corner and -1890,-15458310 for a point in the lower left corner. I want the first one to become (0,0) and the second one (0,4090)
– Selphiron
Dec 24 '14 at 9:59
1
Perhaps some aux.xml file then? There must be something because plain bmp file does not hold metadata about origin and pixel size. Example:gdalinfo bmp_test.bmp Driver: BMP/MS Windows Device Independent Bitmap Files: bmp_test.bmp Size is 475, 373 Coordinate System is "" Corner Coordinates: Upper Left ( 0.0, 0.0) Lower Left ( 0.0, 373.0) Upper Right ( 475.0, 0.0) Lower Right ( 475.0, 373.0) Center ( 237.5, 186.5) Band 1 Block=475x1 Type=Byte, ColorInterp=Red Band 2 Block=475x1 Type=Byte, ColorInterp=Green Band 3 Block=475x1 Type=Byte, ColorInterp=Blue
– user30184
Dec 24 '14 at 11:09
nope. I had a PNG and I opened it with MS Paint saved it as a 256 BMP ^^ But I solved it. I used gdal_translate -a_ullr 0 0 8250 4090 -of "BMP" source.bmp target.bmp Thx for your efforts!
– Selphiron
Dec 24 '14 at 15:09
1
If you solved your question, add the answer in the answer box. See gis.stackexchange.com/help/self-answer. Tks.
– Andre Silva
7 hours ago
1
1
Do you have also some other file that records the georeferencing? According to driver manual page gdal.org/frmt_bmp.html GDAL is searching for world file which have extension bpw, .bmpw or .wld.
– user30184
Dec 23 '14 at 21:43
Do you have also some other file that records the georeferencing? According to driver manual page gdal.org/frmt_bmp.html GDAL is searching for world file which have extension bpw, .bmpw or .wld.
– user30184
Dec 23 '14 at 21:43
I don't have a worldfile but maybe I could make one? As I said I know the corner points in EPSG:3068. But gdal_polygonize gives me -1890,1890 for a point in the upper left corner and -1890,-15458310 for a point in the lower left corner. I want the first one to become (0,0) and the second one (0,4090)
– Selphiron
Dec 24 '14 at 9:59
I don't have a worldfile but maybe I could make one? As I said I know the corner points in EPSG:3068. But gdal_polygonize gives me -1890,1890 for a point in the upper left corner and -1890,-15458310 for a point in the lower left corner. I want the first one to become (0,0) and the second one (0,4090)
– Selphiron
Dec 24 '14 at 9:59
1
1
Perhaps some aux.xml file then? There must be something because plain bmp file does not hold metadata about origin and pixel size. Example:
gdalinfo bmp_test.bmp Driver: BMP/MS Windows Device Independent Bitmap Files: bmp_test.bmp Size is 475, 373 Coordinate System is "" Corner Coordinates: Upper Left ( 0.0, 0.0) Lower Left ( 0.0, 373.0) Upper Right ( 475.0, 0.0) Lower Right ( 475.0, 373.0) Center ( 237.5, 186.5) Band 1 Block=475x1 Type=Byte, ColorInterp=Red Band 2 Block=475x1 Type=Byte, ColorInterp=Green Band 3 Block=475x1 Type=Byte, ColorInterp=Blue– user30184
Dec 24 '14 at 11:09
Perhaps some aux.xml file then? There must be something because plain bmp file does not hold metadata about origin and pixel size. Example:
gdalinfo bmp_test.bmp Driver: BMP/MS Windows Device Independent Bitmap Files: bmp_test.bmp Size is 475, 373 Coordinate System is "" Corner Coordinates: Upper Left ( 0.0, 0.0) Lower Left ( 0.0, 373.0) Upper Right ( 475.0, 0.0) Lower Right ( 475.0, 373.0) Center ( 237.5, 186.5) Band 1 Block=475x1 Type=Byte, ColorInterp=Red Band 2 Block=475x1 Type=Byte, ColorInterp=Green Band 3 Block=475x1 Type=Byte, ColorInterp=Blue– user30184
Dec 24 '14 at 11:09
nope. I had a PNG and I opened it with MS Paint saved it as a 256 BMP ^^ But I solved it. I used gdal_translate -a_ullr 0 0 8250 4090 -of "BMP" source.bmp target.bmp Thx for your efforts!
– Selphiron
Dec 24 '14 at 15:09
nope. I had a PNG and I opened it with MS Paint saved it as a 256 BMP ^^ But I solved it. I used gdal_translate -a_ullr 0 0 8250 4090 -of "BMP" source.bmp target.bmp Thx for your efforts!
– Selphiron
Dec 24 '14 at 15:09
1
1
If you solved your question, add the answer in the answer box. See gis.stackexchange.com/help/self-answer. Tks.
– Andre Silva
7 hours ago
If you solved your question, add the answer in the answer box. See gis.stackexchange.com/help/self-answer. Tks.
– Andre Silva
7 hours ago
add a comment |
1 Answer
1
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oldest
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I used gdal_translate -a_ullr 0 0 8250 4090 -of "BMP" source.bmp target.bmp which solved the problem.
answered 9 mins ago
SelphironSelphiron
3791421
add a comment |
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I used gdal_translate -a_ullr 0 0 8250 4090 -of "BMP" source.bmp target.bmp which solved the problem.
answered 9 mins ago
SelphironSelphiron
3791421
add a comment |
I used gdal_translate -a_ullr 0 0 8250 4090 -of "BMP" source.bmp target.bmp which solved the problem.
answered 9 mins ago
SelphironSelphiron
3791421
add a comment |
I used gdal_translate -a_ullr 0 0 8250 4090 -of "BMP" source.bmp target.bmp which solved the problem.
answered 9 mins ago
SelphironSelphiron
3791421
I used gdal_translate -a_ullr 0 0 8250 4090 -of "BMP" source.bmp target.bmp which solved the problem.
answered 9 mins ago
SelphironSelphiron
3791421
answered 9 mins ago
SelphironSelphiron
3791421
answered 9 mins ago
SelphironSelphiron
3791421
answered 9 mins ago
SelphironSelphiron
3791421
3791421
add a comment |
add a comment |
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1
Do you have also some other file that records the georeferencing? According to driver manual page gdal.org/frmt_bmp.html GDAL is searching for world file which have extension bpw, .bmpw or .wld.
– user30184
Dec 23 '14 at 21:43
I don't have a worldfile but maybe I could make one? As I said I know the corner points in EPSG:3068. But gdal_polygonize gives me -1890,1890 for a point in the upper left corner and -1890,-15458310 for a point in the lower left corner. I want the first one to become (0,0) and the second one (0,4090)
– Selphiron
Dec 24 '14 at 9:59
1
Perhaps some aux.xml file then? There must be something because plain bmp file does not hold metadata about origin and pixel size. Example:
gdalinfo bmp_test.bmp Driver: BMP/MS Windows Device Independent Bitmap Files: bmp_test.bmp Size is 475, 373 Coordinate System is "" Corner Coordinates: Upper Left ( 0.0, 0.0) Lower Left ( 0.0, 373.0) Upper Right ( 475.0, 0.0) Lower Right ( 475.0, 373.0) Center ( 237.5, 186.5) Band 1 Block=475x1 Type=Byte, ColorInterp=Red Band 2 Block=475x1 Type=Byte, ColorInterp=Green Band 3 Block=475x1 Type=Byte, ColorInterp=Blue– user30184
Dec 24 '14 at 11:09
nope. I had a PNG and I opened it with MS Paint saved it as a 256 BMP ^^ But I solved it. I used gdal_translate -a_ullr 0 0 8250 4090 -of "BMP" source.bmp target.bmp Thx for your efforts!
– Selphiron
Dec 24 '14 at 15:09
1
If you solved your question, add the answer in the answer box. See gis.stackexchange.com/help/self-answer. Tks.
– Andre Silva
7 hours ago