[mapserver-users] Use Ground Control Points from GeoTIFF
Rahkonen Jukka (MML)
jukka.rahkonen at maanmittauslaitos.fi
Thu Sep 3 04:31:09 PDT 2020
Hi,
I would appreciate if you could have a try with
"gdalwarp -of vrt -t_srs "EPSG:3857" sat.tif sat_3857.vrt"
-Jukka Rahkonen-
Lähettäjä: mapserver-users <mapserver-users-bounces at lists.osgeo.org> Puolesta Jesper Kempe
Lähetetty: torstai 3. syyskuuta 2020 13.57
Vastaanottaja: Jeff McKenna <jmckenna at gatewaygeomatics.com>
Kopio: Mapserver <mapserver-users at lists.osgeo.org>
Aihe: Re: [mapserver-users] Use Ground Control Points from GeoTIFF
shp2img creates an empty blank image with a mapfile like this:
MAP
NAME "map"
WEB
METADATA
"wms_title" "WMS mapserver"
"wms_srs" "EPSG:4326 EPSG:3021 EPSG:9999 EPSG:3006 EPSG:900913"
"wms_extent" "1225000 6130000 1910000 7675000"
"wms_enable_request" "*"
"wfs_enable_request" "*"
END
END
PROJECTION
"init=epsg:4326"
END
EXTENT 15 60 30 68
SIZE 200 200
LAYER
NAME "sat"
DATA "/data/temp/Jesper/sat.tif"
TYPE RASTER
STATUS DEFAULT
METADATA
"wms_title" "sat"
END
END
The output from shp2img looks like this:
$ shp2img -m ttt.map -o /data/temp/Jesper/ttt.png -all_debug 5
msLoadMap(): 0.003s
msDrawMap(): rendering using outputformat named png (AGG/PNG).
msDrawRasterLayerLow(sat): entering.
msDrawRasterLayerGDAL(): Entering transform.
msDrawRasterLayerGDAL(): src=15,10645,15,15, dst=0,0,200,200
msDrawRasterLayerGDAL(): source raster PL (14.962,10645.462) for dst PL (0,0).
msDrawRasterLayerGDAL(): red,green,blue,alpha bands = 1,2,3,4
msDrawMap(): Layer 0 (sat), 0.011s
msDrawMap(): Drawing Label Cache, 0.000s
msDrawMap() total time: 0.011s
msSaveImage(/data/temp/Jesper/ttt.png) total time: 0.003s
msFreeMap(): freeing map at 0x1d14f50.
freeLayer(): freeing layer at 0x1d1d080.
freeLayer(): freeing layer at 0x1d1e1b0.
shp2img total time: 0.017s
If I add:
PROJECTION
"init=epsg:4326"
END
EXTENT 17.0473154408269387 62.1606759790530177 27.5792082876237146 66.7744046276809797
shp2img outputs:
msLoadMap(): 0.003s
msDrawMap(): rendering using outputformat named png (AGG/PNG).
msDrawRasterLayerLow(sat): entering.
msDrawRasterLayerGDAL(): Entering transform.
msDrawRasterLayerGDAL(): src=0,0,10474,10717, dst=27,63,140,61
msDrawRasterLayerGDAL(): source raster PL (-49.554,-33.774) for dst PL (27,63).
msDrawRasterLayerGDAL(): red,green,blue,alpha bands = 1,2,3,4
msDrawMap(): Layer 0 (sat), 0.025s
msDrawMap(): Drawing Label Cache, 0.000s
msDrawMap() total time: 0.025s
msSaveImage(/data/temp/Jesper/ttt.png) total time: 0.004s
msFreeMap(): freeing map at 0x2453f50.
freeLayer(): freeing layer at 0x245c080.
freeLayer(): freeing layer at 0x245d430.
shp2img total time: 0.033s
Then the image is shown in ttt.png but is not in the correct place and not rotated correctly.
Any help or ideas are appreciated!
Thanks
Jesper
Den ons 2 sep. 2020 kl 18:23 skrev Jeff McKenna <jmckenna at gatewaygeomatics.com<mailto:jmckenna at gatewaygeomatics.com>>:
I'm curious what happens when you try to generate a map image from the
commandline: shp2img -m test.map -o ttt.png -all_debug 5
-jeff
--
Jeff McKenna
MapServer Consulting and Training Services
co-founder of FOSS4G
http://gatewaygeo.com/
On 2020-09-02 4:51 a.m., Jesper Kempe wrote:
> Hi
>
> This is the mapfile:
>
> MAP
> NAME "map"
> WEB
> METADATA
> "wms_title" "WMS mapserver"
> "wms_srs" "EPSG:4326 EPSG:3021 EPSG:9999
> EPSG:3006 EPSG:900913"
> "wms_extent" "1225000 6130000 1910000 7675000"
> "wms_enable_request" "*"
> "wfs_enable_request" "*"
> END
> END
>
> PROJECTION
> "init=epsg:4326"
> END
>
> EXTENT -180 -90 180 90
>
> LAYER
> NAME "sat"
> DATA "sat.tif"
> TYPE RASTER
> STATUS ON
>
> METADATA
> "wms_title" "sat"
> END
>
> PROJECTION
> "init=epsg:4326"
> END
> EXTENT 17.0473154408269387 62.1606759790530177
> 27.5792082876237146 66.7744046276809797
>
> END
>
> END
>
> I have also tried both without PROJECTION in LAYER and with
> PROJECTION
> AUTO
> END
>
> None of them works.
>
> EXTENT in the mapfile is taken from Qgis metadata of the layer.
>
>
> Thanks
> Jesper
>
> Den tis 1 sep. 2020 kl 23:41 skrev Steve Lime <sdlime at gmail.com<mailto:sdlime at gmail.com>
> <mailto:sdlime at gmail.com<mailto:sdlime at gmail.com>>>:
>
> What does the mapfile look like?
>
> On Tue, Sep 1, 2020 at 10:26 AM Jesper Kempe <jesper.kempe at gmail.com<mailto:jesper.kempe at gmail.com>
> <mailto:jesper.kempe at gmail.com<mailto:jesper.kempe at gmail.com>>> wrote:
>
> Hi
>
> I have a GeoTiff file that gdalinfo presents like this:
>
> gdalinfo sat.tif
> Driver: GTiff/GeoTIFF
> Files: sat.tif
> Size is 10474, 10717
> Coordinate System is `'
> GCP Projection =
> GEOGCS["WGS 84",
> DATUM["WGS_1984",
> SPHEROID["WGS 84",6378137,298.257223563,
> AUTHORITY["EPSG","7030"]],
> AUTHORITY["EPSG","6326"]],
> PRIMEM["Greenwich",0],
> UNIT["degree",0.0174532925199433],
> AUTHORITY["EPSG","4326"]]
> GCP[ 0]: Id=1, Info=
> (0,0) ->
> (27.5783052509812,65.9184735836942,229.992792810313)
> GCP[ 1]: Id=2, Info=
> (524,0) ->
> (27.1416007200269,65.9731480840222,172.994255514815)
> GCP[ 2]: Id=3, Info=
> (1048,0) ->
> (26.7005564512604,66.0268770755367,152.994545626454)
> GCP[ 3]: Id=4, Info=
> (1572,0) ->
> (26.257537545879,66.0793551447287,131.994995356537)
> GCP[ 4]: Id=5, Info=
> (2096,0) ->
> (25.8102107755995,66.1308402121171,163.993212723173)
> ....
>
> with 482 GCPs.
>
>
> The file opens ok in Qgis and is located in the right location.
> But I can´t in any way get it to show correctly in Mapserver.
>
> Is this possible to do? Or do I have to gdalwarp the file to a
> known projection and set the PROJECTION of the layer?
>
> Thanks
> Jesper
>
>
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