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<DIV><FONT size=2>Hello,everyone:</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>I'm a new learner of the gdal. During my study, I met some
problems. I hope I can find help here.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>I found these is one sentence "<FONT size=3>If a .prj files in
old Arc/Info style or new ESRI OGC WKT style is present, it will be read and
used to associate a projection with features.</FONT>" in
\ogr\dev_shapefile.html.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>And I found there are some *.prjˇˇfiles with the same name
shapefile in directory C:\arcgis\arcexe83\Reference Systems(The directory which
I install arcinfo).In the ArcMap, that the frame map file is *.mxt.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>I try to use the OGRSFDriverRegistrar::Open function to open
these *.prj files but I failed.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>So I have the following questions.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>1. Who can explain the use of these *.prj files in this
directory? Which shapefiles do they support? Or they only support project mode
for AcrMap?</FONT></DIV>
<DIV><FONT size=2>2. What is the relation with the *.prj and *mxt
files?</FONT></DIV>
<DIV><FONT size=2>3. How can I read the coordinate system and projection from
the *.prj files? And whether this prj file support the coordinate system and
projection for the same name shapefile or for the shapefiles in the same
directory?</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>Thanks a lot.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>Kunyang Li</FONT></DIV></BODY></HTML>