Hi All,
I'm trying to add a VRT raster file (BSB chart) to my mapfile, but it doesn't
work totally.
In fact, all of my tiles are generated, but they have no data... No error is
logged...
It sounds like the projection or the transformation matrix is not well
supported, or not well configured.
If I put in comments the GeoTransform element, some blank tiles are shown where
the lower left corner is located at the origin (0.000, 0.000).
Moreover, I successfully opened that same VRT file with QGIS, and the
projection is ok...
A copy of my VRT file is shown just after my message...
Here is a snippet of my mapfile:
LAYER
NAME "131701"
GROUP "BSB"
#EXTENT -70.980392 46.777300 -70.191770 47.279794
DATA "BSB/131701.vrt"
TYPE RASTER
STATUS OFF
CLASS
NAME 'BSB'
END
METADATA
WMS_TITLE "BSB"
WMS_SRS "EPSG:4326 EPSG:29450 EPSG:2949 EPSG:32187 EPSG:32188
EPSG:900913"
END
END
Thanks in advance for your support,
Marc-Andre
---------------------
<VRTDataset rasterXSize="11388" rasterYSize="8091">
<SRS>+proj=merc +lat_ts=47.166667 +datum=NAD83 +nodefs</SRS>
<GeoTransform>-5.3802490306424974e+006,
5.0001511315648770e+000,-1.8211665160056521e-004,
4.0492551038299361e+006,-2.5595698020313497e-004,-5.0010081232801378e+000</GeoTransform>
<Metadata>
<MDI
key="BSB_KNP">SC=50000,GD=NAD83,PR=MERCATOR,PP=47.166667,PI=5.000000,SP=,SK=0.000000,TA=90.000000,UN=METRES,SD=LNT,DX=5.000000,DY=5.000000</MDI>
<MDI
key="BSB_KNQ">EC=RF,GD=NAR,VC=ZZZ,SC=ZZZ,PC=MC,P1=-70.582029,P2=47.166667,P3=0.0,P4=NOT_APPLICABLE,GC=GE,RM=NONE</MDI>
<MDI key="CUTLINE">MULTIPOLYGON(((257.76284645559468
7745.7076975815671,2490.025011025306 7746.5301512821934,2492.2163879532559
7181.6425479723066,3276.1412438760321 7210.5951029770404,4429.0270760545409
6817.9091369725729,4890.9737230091405 6736.5650032022368,11250.811878184026
354.19735628215676,11251.785400765162 244.45756921568665,3537.7418346315158
244.33482436588929,3523.5069250460119 2029.8367618071302,1881.7430005409099
2028.8818991008357,1868.6640235103462 2447.8575431625686,258.92730402280057
2434.9666589315798)))</MDI>
<MDI key="DESCRIPTION">SAULT-AU-COCHON À/TO QUÉBEC</MDI>
</Metadata>
<GCPList Projection="+proj=merc +lat_ts=47.166667 +datum=NAD83 +nodefs">
<GCP Id="1" Pixel="259.0000" Line="7746.0000" X="-5.378954975641E+006"
Y="4.010515470308E+006" />
<GCP Id="2" Pixel="4892.0000" Line="7746.0000" X="-5.355789271702E+006"
Y="4.010515470308E+006" />
<GCP Id="3" Pixel="4892.0000" Line="6736.0000" X="-5.355789271702E+006"
Y="4.015564569030E+006" />
<GCP Id="4" Pixel="11252.0000" Line="354.0000" X="-5.323986290417E+006"
Y="4.047476941272E+006" />
<GCP Id="5" Pixel="11252.0000" Line="244.0000" X="-5.323986290417E+006"
Y="4.048033445911E+006" />
<GCP Id="6" Pixel="259.0000" Line="244.0000" X="-5.378954975641E+006"
Y="4.048033445911E+006" />
<GCP Id="7" Pixel="9527.0000" Line="986.0000" X="-5.332614722193E+006"
Y="4.044323691092E+006" />
<GCP Id="8" Pixel="7000.0000" Line="986.0000" X="-5.345251249970E+006"
Y="4.044323691092E+006" />
<GCP Id="9" Pixel="4472.0000" Line="986.0000" X="-5.357887777748E+006"
Y="4.044323691092E+006" />
<GCP Id="10" Pixel="1945.0000" Line="986.0000" X="-5.370524305526E+006"
Y="4.044323691092E+006" />
<GCP Id="11" Pixel="8263.0000" Line="2837.0000" X="-5.338932986081E+006"
Y="4.035066484912E+006" />
<GCP Id="12" Pixel="5736.0000" Line="2837.0000" X="-5.351569513859E+006"
Y="4.035066484912E+006" />
<GCP Id="13" Pixel="3208.0000" Line="2837.0000" X="-5.364206041637E+006"
Y="4.035066484912E+006" />
<GCP Id="14" Pixel="681.0000" Line="2837.0000" X="-5.376842569415E+006"
Y="4.035066484912E+006" />
<GCP Id="15" Pixel="4472.0000" Line="4685.0000" X="-5.357887777748E+006"
Y="4.025823838111E+006" />
<GCP Id="16" Pixel="1945.0000" Line="4685.0000" X="-5.370524305526E+006"
Y="4.025823838111E+006" />
<GCP Id="17" Pixel="3209.0000" Line="6531.0000" X="-5.364206041637E+006"
Y="4.016595685774E+006" />
<GCP Id="18" Pixel="682.0000" Line="6531.0000" X="-5.376842569415E+006"
Y="4.016595685774E+006" />
</GCPList>
<VRTRasterBand dataType="Byte" band="1">
<Metadata />
<ColorInterp>Palette</ColorInterp>
<ColorTable>
<Entry c1="0" c2="0" c3="0" c4="255" />
<Entry c1="255" c2="255" c3="255" c4="255" />
<Entry c1="255" c2="214" c3="140" c4="255" />
<Entry c1="107" c2="165" c3="222" c4="255" />
<Entry c1="182" c2="213" c3="240" c4="255" />
<Entry c1="100" c2="160" c3="140" c4="255" />
<Entry c1="0" c2="86" c3="158" c4="255" />
<Entry c1="75" c2="75" c3="75" c4="255" />
<Entry c1="123" c2="8" c3="90" c4="255" />
<Entry c1="100" c2="100" c3="100" c4="255" />
<Entry c1="243" c2="137" c3="71" c4="255" />
<Entry c1="44" c2="99" c3="207" c4="255" />
<Entry c1="245" c2="255" c3="80" c4="255" />
<Entry c1="255" c2="0" c3="0" c4="255" />
</ColorTable>
<SimpleSource>
<SourceFilename
relativeToVRT="0">E:\ms4w\apps\marinfo\data\BSB\131701.kap</SourceFilename>
<SourceBand>1</SourceBand>
<SourceProperties RasterXSize="11388" RasterYSize="8091" DataType="Byte"
BlockXSize="11388" BlockYSize="1" />
<SrcRect xOff="0" yOff="0" xSize="11388" ySize="8091" />
<DstRect xOff="0" yOff="0" xSize="11388" ySize="8091" />
</SimpleSource>
</VRTRasterBand>
</VRTDataset>
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