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<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US style='font-size:
9.0pt'>Greetings,<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US><o:p> </o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US style='font-size:
9.0pt'>About the following mapscript code, I don't understand very well.<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US style='font-size:
9.0pt'>Is it about to generate a new feature node with line, point object
embedded? <o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US style='font-size:
9.0pt'>Will it do some updates to the map file stored in the server?<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US><o:p> </o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US><o:p> </o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US style='font-size:
9.0pt'>/* $qresult: an array that corresponds to the fetched rows.*/<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US style='font-size:
9.0pt'>function AddPoints ( $map, $qresult ) {<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US><o:p> </o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US style='font-size:
9.0pt'> // Use lat/long info from query results to add
points <o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US style='font-size:
9.0pt'> // to the points-of-interest layer of the map<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US style='font-size:
9.0pt'> // shape index is set to the store-id <o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US style='font-size:
9.0pt'> // (this requires a patched version of Mapscript)<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US><o:p> </o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US style='font-size:
9.0pt'> $this_layer = $map->getLayerByName('poi');<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US><o:p> </o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US style='font-size:
9.0pt'> $i = 0;<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US style='font-size:
9.0pt'> foreach($qresult as $row) {<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US style='font-size:
9.0pt'> $poi[$i] = ms_newPointObj();<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US style='font-size:
9.0pt'> $ln[$i] =
ms_newLineObj();<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US style='font-size:
9.0pt'> $shp[$i] =
ms_newShapeObj(MS_SHAPE_POINT);<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US><o:p> </o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US style='font-size:
9.0pt'> /* $row[2] is latitude,$row[3] is
longtitude from database*/<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US style='font-size:
9.0pt'>
$poi[$i]->setXY($row[3],$row[2]); <o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US style='font-size:
9.0pt'> $ln[$i]->add($poi[$i]); <o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US style='font-size:
9.0pt'> $shp[$i]->add($ln[$i]);<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US><o:p> </o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US style='font-size:
9.0pt'> /* $row[0] is address field from database. */<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US style='font-size:
9.0pt'> $shp[$i]->set(index,
$row[0]); <o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US style='font-size:
9.0pt'> $this_layer->addFeature(
$shp[$i] );<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US style='font-size:
9.0pt'> $i++;<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US style='font-size:
9.0pt'> }<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US><o:p> </o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US style='font-size:
9.0pt'> return;<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US><o:p> </o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US style='font-size:
9.0pt'>} // end AddPoints<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US><o:p> </o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US style='font-size:
9.0pt'>Thanks!<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US><o:p> </o:p></span></font></p>
<p class=MsoPlainText><font size=1 face=宋体><span lang=EN-US style='font-size:
9.0pt'>Jeff<o:p></o:p></span></font></p>
<p class=MsoPlainText><st1:City w:st="on"><font size=1 face=宋体><span
lang=EN-US style='font-size:9.0pt'>Chengdu</span></font></st1:City><span
lang=EN-US> <st1:country-region w:st="on"><st1:place w:st="on">China</st1:place></st1:country-region>.<o:p></o:p></span></p>
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