[mapserver-users] convert

E Perik erwin at perik.nu
Fri Apr 5 08:53:37 PST 2002


Hi Topan,

Assuming DTM is digital terrain model points in lat/lon/altitude type,
.....

You could convert this using PHP + Mapscript like following:

if ($init==1) {
// recreate the site layer
   $shpFname = "C:\\Program Files\\Apache\\htdocs\\mich\\data\\shptest";
   $shpFile = ms_newShapeFileObj($shpFname, MS_SHP_POINT);
   $def =  array(array("PROG_ID", "N", 5, 0));
   $dbfFile = dbase_create($shpFname . ".dbf", $def);
   createPoint( 14, 34, 111);
   createPoint( 33, 14, 222);
   createPoint( 10, 20, 333);
// done... cleanup
   $shpFile->free();
   dbase_close($dbfFile);
}


function createPoint($x, $y, $name){
     GLOBAL $shpFile, $dbfFile;
     // Create shape
     $oShp = ms_newShapeObj(MS_SHP_POINT);
     $oLine = ms_newLineObj();
     $oLine->addXY($x, $y);
     $oShp->add( $oLine );
     $shpFile->addShape($oShp);
     // Write attribute record
     dbase_add_record($dbfFile, array($name));
}

Createpoint adds point to shapefile and 'info' to dbf-file. You would do
this for every point of your DTM file and that's it, shapefile is
created.

Code is from list, and there are more examples like this one, so a
search could come up with a better example.

Erwin

-----Original Message-----
From: owner-mapserver-users at lists.gis.umn.edu
[mailto:owner-mapserver-users at lists.gis.umn.edu] On Behalf Of Topan
Sent: Friday, April 05, 2002 1:18 PM
To: mapserver-users at lists.gis.umn.edu
Subject: [mapserver-users] convert


Can i convert DTM (planet) data into shape file. if it can, where i can
find 
the converter ? 


ths




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