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<TITLE>Projection issue with vrt file</TITLE>
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<P><FONT SIZE=2>Hi All,<BR>
<BR>
I'm trying to add a VRT raster file (BSB chart) to my mapfile, but it doesn't work totally.<BR>
In fact, all of my tiles are generated, but they have no data... No error is logged...<BR>
<BR>
It sounds like the projection or the transformation matrix is not well supported, or not well configured.<BR>
<BR>
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).<BR>
<BR>
Moreover, I successfully opened that same VRT file with QGIS, and the projection is ok...<BR>
<BR>
A copy of my VRT file is shown just after my message...<BR>
<BR>
Here is a snippet of my mapfile:<BR>
<BR>
LAYER<BR>
NAME "131701"<BR>
GROUP "BSB"<BR>
#EXTENT -70.980392 46.777300 -70.191770 47.279794<BR>
DATA "BSB/131701.vrt"<BR>
TYPE RASTER<BR>
STATUS OFF<BR>
CLASS<BR>
NAME 'BSB'<BR>
END<BR>
METADATA<BR>
WMS_TITLE "BSB"<BR>
WMS_SRS "EPSG:4326 EPSG:29450 EPSG:2949 EPSG:32187 EPSG:32188 EPSG:900913"<BR>
END <BR>
END<BR>
<BR>
Thanks in advance for your support,<BR>
<BR>
Marc-Andre<BR>
<BR>
---------------------<BR>
<BR>
<BR>
<VRTDataset rasterXSize="11388" rasterYSize="8091"><BR>
<SRS>+proj=merc +lat_ts=47.166667 +datum=NAD83 +nodefs</SRS><BR>
<GeoTransform>-5.3802490306424974e+006, 5.0001511315648770e+000,-1.8211665160056521e-004, 4.0492551038299361e+006,-2.5595698020313497e-004,-5.0010081232801378e+000</GeoTransform><BR>
<Metadata><BR>
<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><BR>
<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><BR>
<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><BR>
<MDI key="DESCRIPTION">SAULT-AU-COCHON À/TO QUÉBEC</MDI><BR>
</Metadata><BR>
<GCPList Projection="+proj=merc +lat_ts=47.166667 +datum=NAD83 +nodefs"><BR>
<GCP Id="1" Pixel="259.0000" Line="7746.0000" X="-5.378954975641E+006" Y="4.010515470308E+006" /><BR>
<GCP Id="2" Pixel="4892.0000" Line="7746.0000" X="-5.355789271702E+006" Y="4.010515470308E+006" /><BR>
<GCP Id="3" Pixel="4892.0000" Line="6736.0000" X="-5.355789271702E+006" Y="4.015564569030E+006" /><BR>
<GCP Id="4" Pixel="11252.0000" Line="354.0000" X="-5.323986290417E+006" Y="4.047476941272E+006" /><BR>
<GCP Id="5" Pixel="11252.0000" Line="244.0000" X="-5.323986290417E+006" Y="4.048033445911E+006" /><BR>
<GCP Id="6" Pixel="259.0000" Line="244.0000" X="-5.378954975641E+006" Y="4.048033445911E+006" /><BR>
<GCP Id="7" Pixel="9527.0000" Line="986.0000" X="-5.332614722193E+006" Y="4.044323691092E+006" /><BR>
<GCP Id="8" Pixel="7000.0000" Line="986.0000" X="-5.345251249970E+006" Y="4.044323691092E+006" /><BR>
<GCP Id="9" Pixel="4472.0000" Line="986.0000" X="-5.357887777748E+006" Y="4.044323691092E+006" /><BR>
<GCP Id="10" Pixel="1945.0000" Line="986.0000" X="-5.370524305526E+006" Y="4.044323691092E+006" /><BR>
<GCP Id="11" Pixel="8263.0000" Line="2837.0000" X="-5.338932986081E+006" Y="4.035066484912E+006" /><BR>
<GCP Id="12" Pixel="5736.0000" Line="2837.0000" X="-5.351569513859E+006" Y="4.035066484912E+006" /><BR>
<GCP Id="13" Pixel="3208.0000" Line="2837.0000" X="-5.364206041637E+006" Y="4.035066484912E+006" /><BR>
<GCP Id="14" Pixel="681.0000" Line="2837.0000" X="-5.376842569415E+006" Y="4.035066484912E+006" /><BR>
<GCP Id="15" Pixel="4472.0000" Line="4685.0000" X="-5.357887777748E+006" Y="4.025823838111E+006" /><BR>
<GCP Id="16" Pixel="1945.0000" Line="4685.0000" X="-5.370524305526E+006" Y="4.025823838111E+006" /><BR>
<GCP Id="17" Pixel="3209.0000" Line="6531.0000" X="-5.364206041637E+006" Y="4.016595685774E+006" /><BR>
<GCP Id="18" Pixel="682.0000" Line="6531.0000" X="-5.376842569415E+006" Y="4.016595685774E+006" /><BR>
</GCPList><BR>
<VRTRasterBand dataType="Byte" band="1"><BR>
<Metadata /><BR>
<ColorInterp>Palette</ColorInterp><BR>
<ColorTable><BR>
<Entry c1="0" c2="0" c3="0" c4="255" /><BR>
<Entry c1="255" c2="255" c3="255" c4="255" /><BR>
<Entry c1="255" c2="214" c3="140" c4="255" /><BR>
<Entry c1="107" c2="165" c3="222" c4="255" /><BR>
<Entry c1="182" c2="213" c3="240" c4="255" /><BR>
<Entry c1="100" c2="160" c3="140" c4="255" /><BR>
<Entry c1="0" c2="86" c3="158" c4="255" /><BR>
<Entry c1="75" c2="75" c3="75" c4="255" /><BR>
<Entry c1="123" c2="8" c3="90" c4="255" /><BR>
<Entry c1="100" c2="100" c3="100" c4="255" /><BR>
<Entry c1="243" c2="137" c3="71" c4="255" /><BR>
<Entry c1="44" c2="99" c3="207" c4="255" /><BR>
<Entry c1="245" c2="255" c3="80" c4="255" /><BR>
<Entry c1="255" c2="0" c3="0" c4="255" /><BR>
</ColorTable><BR>
<SimpleSource><BR>
<SourceFilename relativeToVRT="0">E:\ms4w\apps\marinfo\data\BSB\131701.kap</SourceFilename><BR>
<SourceBand>1</SourceBand><BR>
<SourceProperties RasterXSize="11388" RasterYSize="8091" DataType="Byte" BlockXSize="11388" BlockYSize="1" /><BR>
<SrcRect xOff="0" yOff="0" xSize="11388" ySize="8091" /><BR>
<DstRect xOff="0" yOff="0" xSize="11388" ySize="8091" /><BR>
</SimpleSource><BR>
</VRTRasterBand><BR>
</VRTDataset><BR>
<BR>
</FONT>
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