Salve a tutto il forum,
stavo cercando di creare uno script in php che apra Grads e esegua tutte le funzioni.
Ho scaricato il file zippato di PHPGrads nel quale si trova il file grads.php che è il seguente:
Ora facendo partire lo script, che ha il seguente codice:
su un server in locale Apache, mi arriva un errore:
"Fatal error: Maximum execution time of 30 seconds exceeded in C:\Program Files\Apache Group\Apache\htdocs\grads.php on line 78"
La line che da l'errore è questa:
Non so proprio come fare....
C'è qualcuno che usa Grads e che mi potrebbe dare un consiglio?
Grazie mille!
stavo cercando di creare uno script in php che apra Grads e esegua tutte le funzioni.
Ho scaricato il file zippato di PHPGrads nel quale si trova il file grads.php che è il seguente:
PHP:
<?php
//// MAIN CLASS ////
class Grads {
var $pref ; // process reference
var $pipes; // stdio
var $buffer; // output buffer
// Main function
function Grads() {
$this->pref = 0;
$this->buffer = "";
$this->pipes = (array)NULL;
}
// Start function
/// initiate a GrADS instance
function Start ($Args="") {
global $Echo,$Verb;
$Bin="C:\Documents and Settings\Administrator\Desktop\GrADS19\win32\gradsnc.exe"; $Echo=0; $Verb=0; $Port=0; $Window=0; $Opts="";
if($Args) {
if(array_key_exists('Bin', $Args)) {$Bin=$Args["Bin"];}
if(array_key_exists('Echo', $Args)) {$Echo=$Args["Echo"];}
if(array_key_exists('Verb', $Args)) {$Verb=$Args["Verb"];}
if(array_key_exists('Port', $Args)) {$Port=$Args["Port"];}
if(array_key_exists('Window', $Args)){$Window=$Args["Window"];}
if(array_key_exists('Opts', $Args)) {$Opts=$Args["Opts"];}
}
if($Port>0) {$Port=" -p";} else {$Port=" -l";}
if($Window==0) {$Window=" -b";} else {$Window="";}
$cmd = $Bin.$Window.$Port.$Opts;
$t = new Grads;
$descriptor = array (0 => array ("pipe", "r"), 1 => array ("pipe", "w"), 2 => array ("pipe", "w"));
$t->pref = proc_open ("$cmd ", $descriptor, $t->pipes);
stream_set_blocking ($t->pipes[1], 0);
echo " Started <".$cmd."> with pid = ".$t->getPID()."\n";
$t->tell("start");
return $t;
}
// getPID function
/// gets the PID for a GrADS instance
function getPID () {
$status=proc_get_status($this->pref);
return $status["pid"];
}
// getError function
/// Im already working on it. It listens the pipe with error msgs
function getError () {
$buffer = "";
while ($r = fgets ($this->pipes[2], 1024)) { $buffer .= $r; }
return $buffer;
}
// Close function
/// it kills the pipe of a Grads instance
function Close () {
$r = proc_close ($this->pref);
$this->pref = NULL;
return $r;
}
// tell function
/// is the heart of the pipe comunication system between PHP and GrADS. it formats the output and waits for it to go on
/// output = "output" => returns the whole output just like in GrADS command line
/// = "array" => returns the output "sliced" in an array[LINES][WORDS]
function tell ($ga_cmd,$output="") {
global $Echo,$Verb;
if($ga_cmd!="start") {
fwrite ($this->pipes[0], $ga_cmd."\n");
}
$buffer = $this->buffer; $this->buffer = "";
$r = fgets($this->pipes[1]);
if(strpos($r, "</RC>")!==FALSE){ $rcok=explode(" ",$r); }
while (strpos($r, "</IPC>")===FALSE) {
$r = fgets($this->pipes[1]);
if(strpos($r, "</RC>")!==FALSE){ $rcok=explode(" ",$r); }
$buffer .= $r;
}
if($ga_cmd=="quit") {sleep(1);}
$r = fgets($this->pipes[1]);
if(strpos($r, "</RC>")!==FALSE){ $rcok=explode(" ",$r); }
$buffer .= $r;
if($ga_cmd!="start" & $Verb=="1") {
echo "\n\n rc = ".$rcok[1]." for <".$ga_cmd.">\n";
}
$bfok0=explode("\n",$buffer);
array_shift($bfok0);array_shift($bfok0); // jump 2 first lines
array_pop($bfok0);array_pop($bfok0);array_pop($bfok0);array_pop($bfok0); // jump 5 last lines
$bfok=implode("\n",$bfok0);
if($Echo=="1") {
if($bfok!=""){echo "\n".$bfok."\n";}
}
if($output!=""){ return $bfok; }
}
// quit function
/// quits Grads, holds until all output have arrived from the pipe and then closes the connection between PHP and GrADS
function quit() {
global $Echo,$Verb;
$this->tell("quit");
echo "\n Destroyed Grads with pid = ".$this->getPID()."\n";
$this->Close();
}
// cmd function
/// executes any command in GrADS, just like it was in the command line
function cmd($cmd) {
global $Echo,$Verb;
$rc=$this->tell($cmd);
if($output=="array") { return $this->arrange($rc); }
return $rc;
}
// set function
/// execute set commands.
/// output = "output" => returns the whole output just like in GrADS command line
/// = "array" => returns the output "sliced" in an array like array[LINES][WORDS]
function set($name,$opt,$output="") {
global $Echo,$Verb;
$rc=$this->tell("set ".$name." ".$opt,$output);
if($output=="array") { return $this->arrange($rc); }
return $rc;
}
// open function
/// open files
function open($file,$type) {
global $Echo,$Verb;
if($type=="ctl") { $this->tell("open ".$file); }
if($type=="sdf") { $this->tell("sdfopen ".$file); }
if($type=="xdf") { $this->tell("xdfopen ".$file); }
}
// arrange function
/// it "slices" the output of a GrADS command into and array like array[LINES][WORDS]
function arrange($rc) {
$rcarray=$rcline=explode("\n",$rc);
if($rcline[sizeof($rcline)-1]=="" || $rcline[sizeof($rcline)-1]==" ") { array_pop($rcline); }
for ($i=0;$i<=sizeof($rcline)-1;$i+=1) {
$rcarray[$i]=explode(" ",$rcline[$i]);
}
return $rcarray;
}
// display function
/// display information in GrADS windows or in the output.
/// output = "output" => returns the whole output just like in GrADS command line
/// = "array" => returns the output "sliced" in an array like array[LINES][WORDS]
function display($var,$output="") {
global $Echo,$Verb;
$rc=$this->tell("display ".$var,$output);
if($output=="array") { return $this->arrange($rc); }
return $rc;
}
// draw function
function draw($type,$content) {
global $Echo,$Verb;
$this->tell("draw ".$type." ".$content);
}
// query function
function query($opt,$output="") {
global $Echo,$Verb;
$rc=$this->tell("query ".$opt,$output);
if($output=="array") { return $this->arrange($rc); }
return $rc;
}
// gxyat function
function gxyat($name) {
global $Echo,$Verb;
$this->tell("gxyat ".$name);
}
// font function
/// configures some font attributes in just one function
function font($Args="") {
$Font="0";
$Size=".35";
$Color="1";
if($Args) {
if(array_key_exists('Font', $Args)) {$Font=$Args["Font"];}
if(array_key_exists('Size', $Args)) {$Size=$Args["Size"];}
if(array_key_exists('Color', $Args)) {$Color=$Args["Color"];}
}
$this->tell("set font ".$Font);
$this->tell("set string ".$Color." bc");
$this->tell("set strsiz ".$Size);
}
// title function
/// draws the title, with the ability to move the title up or down
function title($content,$Args="") {
global $Echo,$Verb;
$YOffset="0.2";
if($Args) {
if(array_key_exists('Font', $Args)) {$Font=$Args["Font"];}
}
$rc=$this->tell("query gxinfo","output");
$rc0=explode("X Limits = ",$rc); $rc1=explode(" ",$rc0[1]);
$ytop=explode("\n",$rc1[7]);$ytop=$ytop[0]+$YOffset; $ybottom=$rc1[5];
$xleft=$rc1[0]; $xright=explode("\n",$rc1[2]);$xright=$xright[0];
$xmid=$xleft+($xright-$xleft)/2;
$this->tell("draw string ".$xmid." ".$ytop." ".$content);
}
}
//// MAIN CLASS ////
?>Ora facendo partire lo script, che ha il seguente codice:
PHP:
<?php
include ("grads.php");
$ga = Grads::start($opt=array("Verb"=>"0","Echo"=>"0","Window"=>"0"));
$ga->open("C:\Documents and Settings\Administrator\Desktop\GrADS19\win32\data\model.nc","sdf");
$ga->set("lat","16 16");
$ga->set("lon","41 41");
$pressure = $ga->display("ps");
$testo = fopen("prova2.txt","w");
fwrite($testo,$pressure);
fclose($testo);
$ga->quit();
?>su un server in locale Apache, mi arriva un errore:
"Fatal error: Maximum execution time of 30 seconds exceeded in C:\Program Files\Apache Group\Apache\htdocs\grads.php on line 78"
La line che da l'errore è questa:
PHP:
"if(strpos($r, "</RC>")!==FALSE){ $rcok=explode(" ",$r); }"Non so proprio come fare....
C'è qualcuno che usa Grads e che mi potrebbe dare un consiglio?
Grazie mille!
