On Wed, Jul 8, 2009 at 8:56 PM, Steve Lime <[email protected]>wrote:
> May well be a tolerance issue. By default it's in pixels and based on the > extent you're setting (I don't > know what the map SIZE is set to) it's probably a super tiny value. Have > you tried setting a tolerance > in map units? E.g. > > TOLERANCE 5 > TOLERANCEUNITS meters # or whatever > > Just an idea... > > Steve > > >>> On 7/8/2009 at 12:20 PM, in message > <[email protected]>, Hussain > Hashmi > <[email protected]> wrote: > > hi > > > > Can someone here guide me on this issue please. > > My Objective is to get attribute values for any selected street (Line). > > My client application is based on KaMap. > > I have a similar solution for Polygons which works perfectly. > > > > > > I am trying to query a street layer which gives me the following error. > > > > Warning: [MapServer Error]: msQueryByPoint(): No matching record(s) found > in > > C:\... on line 84 > > Warning: [MapServer Error]: msShapefileOpen(): > > (/ms4w/maps/./city/./city/streets) in c:\... on line 84 > > > > > > MAPFILE > > ********************** > > LAYER > > NAME 'streets_Query' > > GROUP 'streets_Query' > > DATA './city/streets' > > TYPE line > > MAXSCALE 3001 > > STATUS ON > > > > TOLERANCE 5 > > TEMPLATE './_templates/Streets_Identify.html' > > METADATA > > "queryable" "true" > > searchfield "ANAME" > > fields "ZIP_CODE" > > END > > END #end layer > > > > > > > > PHP MAPSCRIPT > > ********************** > > //------- Get Input Parameters. > > if (isset($_REQUEST['map'])) {$szMap = $_REQUEST['map'];} else {echo > "map > > not defined"; die;} > > if (isset($_REQUEST['coords'])) {$coords = > > explode(',',$_REQUEST['coords']);} else {echo "coordinate not defined"; > > die;} > > > > > > //------- Load Mapscript Module. > > $szPHPMapScriptModule = 'php_mapscript.'.PHP_SHLIB_SUFFIX; > > if (!extension_loaded('MapScript')) { > > dl($szPHPMapScriptModule); > > } > > > > //------- Load Current Map file. > > $szMapFile=str_replace('<<Map>>',$szMap,'/ms4w/maps/<<Map>>.map'); > > $oMap = ms_newMapObj($szMapFile); > > > > > > //------- SETTING MAP EXTENT to query extent.. > > $mapExtent = $oMap->extent; > > $oMap->setExtent($coords[0],$coords[1], > > $coords[0]+0.000001,$coords[1]+0.000001); > > > > //------- SETTING QUERY POINT > > $point = ms_newPointObj(); > > $point->setXY($coords[0], $coords[1]); > > > > //------- Initialize map query. > > $oMap->preparequery(); > > > > //------- LOOP ON LAYERS and get identify results. > > $tot = $oMap->numlayers; > > for ($i = 0; $i < $tot; $i++) { > > //------- get map layer. > > $oLayer = $oMap->getLayer($i); > > > > //------- Verify Layer type > > if ($oLayer->name != 'streets_Query') continue; > > > > //------- Validate if query succeeds. > > $check_query = $oLayer->queryByPoint($point, MS_SINGLE, 0); > > if ($check_query != MS_SUCCESS) {continue;} > > > > //------- Open layer for data input. > > $oLayer->open(); > > > > //------- Get the record values corresponding to a result tileindex. > > $oResultCache = $oLayer->getResult(0); > > $oShape = $oLayer->getShape($oResultCache->tileindex, > > $oResultCache->shapeindex); > > $aValues = $oShape->values; > > > > //------- Get the field value. > > echo $aValues['ZIP_CODE']; echo ";"; > > > > //------- FREE SHAPE > > $oShape->free(); > > $oLayer->close(); > > break; > > } // for i > > > > > > Best regards, > > Mir Hashmi > > > > > > > > ------------------------------ > > This message may contain confidential and/or privileged information. If > you > > have received this message in error,please notify us immediately by > > responding to this e-mail and delete it from your system. Thanks for your > > cooperation. > >
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