[ZOO-Discuss] ZOO JS API

[René-Luc D'Hont]

This is the script for Driftx WPS chaining :

function DriftxJS(aConf,aInputs,aOutputs) {
   try {
     var outputs=new Array();
     outputs[0]={};
   var inputs = {};
   for (var i=0, len=aInputs.length; i<len; i++) {
     var input = aInputs[i];
     for (var key in input) {
       inputs[key] = input[key];
     }
   }
   var wps = new ZOO.Format.WPS();
   var json = new ZOO.Format.JSON();
   var wpProcess = new 
ZOO.Process('http://localhost/zoosoo/driftx/wps/','writeParams');
   var wpInputs = {
     session:inputs.session,
     xmin:inputs.xmin,
     ymin:inputs.ymin,
     xmax:inputs.xmax,
     ymax:inputs.ymax,
     vstartx:inputs.vstartx,
     vstarty:inputs.vstarty,
     nbrowsp:inputs.nbrowsp,
     rowsleng:inputs.rowsleng,
     tractorsp:inputs.tractorsp,
     numrowsin:inputs.numrowsin,
     nozzoutvel:inputs.nozzoutvel,
     windx1:inputs.windx1,
     windy1:inputs.windy1,
     windspeed1:inputs.windspeed1,
     winddir1:inputs.winddir1,
     windx2:inputs.windx2,
     windy2:inputs.windy2,
     windspeed2:inputs.windspeed2,
     winddir2:inputs.winddir2
   };
   var wpOutput = wpProcess.Execute(wpInputs);
   wpOutput = wps.read(wpOutput);
   var clipProcess = new 
ZOO.Process('http://localhost/zoosoo/driftx/wps/','Gdal_Translate');
   var ProjWin = 
inputs.xmin.value+','+inputs.ymax.value+','+inputs.xmax.value+','+inputs.ymin.value+',urn:ogc:def:crs:EPSG:6.6:27572,2';
   var clipInputs = {
     Format:{value:'AAIGRID',datatype:'string'},
     InputDSN:{value:'neffiesL2',datatype:'string'},
     OutputDSN:{value:'neffiesL2_output',datatype:'string'},
     SRS:{value:'EPSG:27572',datatype:'string'},
     Type:{value:'Float32',datatype:'string'},
     ProjWin:{value:ProjWin}
   };
   var clipOutput = clipProcess.Execute(clipInputs);
   clipOutput = wps.read(clipOutput);
   var csvProcess = new 
ZOO.Process('http://localhost/zoosoo/driftx/wps/','grd2xyz');
   var csvInputs = {
     inFile:{value:clipOutput.value,datatype:'string'},
     
outFile:{value:aConf[0]['main']['tmpPath']+'/mnt.csv',datatype:'string'}
   };
   var csvOutput = csvProcess.Execute(csvInputs);
   csvOutput = wps.read(csvOutput);
   /*
   var ftnProcess = new ZOO.Process('http://localhost/zoo/','driftx');
   var ftnInputs = {
     storePath:{value:aConf[0]['main']['tmpPath']+'/',datatype:'string'}
   };
   var ftnOutput = ftnProcess.Execute(ftnInputs);
   var ftnOutput = 
ZOO.Request.Get('http://localhost/zoo/?request=Execute&service=WPS&version=1.0.0&Identifier=driftx&DataInputs=storePath=/var/www/localhost/htdocs/ms_tmp/@datatype=string');
   */
   var ftnOutput = 
ZOO.Request.Get('http://localhost/zoo/?request=Execute&service=WPS&version=1.0.0&Identifier=driftx&DataInputs=storePath='+aConf[0]['main']['tmpPath']+'/@datatype=string');
   var result = ZOO.Request.Get('http://localhost/ms_tmp/driftx.csv')
   var ftxt = new ZOO.Format.Text({separator:',',
                                   xcolumn:'longitude',
                                   ycolumn:'latitude'});
   result = ftxt.read(result);
   var depotmax = 0;
   result.forEach(function(ft,idx) {
       if(Number(ft.attributes.depot)==0)
         ft.attributes.display = 'none';
       else
         ft.attributes.display = '';
       var depot = Number(ft.attributes.depot);
       if (depot > depotmax)
         depotmax=depot;
   });
   var qt = depotmax/5;
   var limites = [qt,2*qt,3*qt,4*qt];
   result.forEach(function(ft,idx) {
       var depot = Number(ft.attributes.depot);
       if (depot<limites[0])
        ft.attributes.color = '#000066';
       else if (depot<limites[1])
        ft.attributes.color = '#006600';
       else if (depot<limites[2])
        ft.attributes.color = '#FFFF00';
       else if (depot<limites[3])
        ft.attributes.color = '#FFA500';
       else
        ft.attributes.color = '#E00100';
   });
   var geojson = new ZOO.Format.GeoJSON();
   outputs[0]["result"]={"value": geojson.write(result), 
"dataType":'string'};
   /*
   outputs[0]["result"]={"value": 
ftxt.separator+'\n'+ftxt.xcolumn+'\n'+result2.length, "dataType":'string'};
   */
   return {"result":3,"outputs": outputs};
   } catch(e) {
     outputs[0]["result"]={"value": e, "dataType":'string'};
     return {"result":3,"outputs": outputs};
   }
}

As you see ZOO JS API could be for managing and chaining process 
providing by different WPS.

Cheers,

René-Luc D'Hont
3Liz


Le 17/05/2010 09:04, James.Sewell at lisasoft.com a écrit :
>
> Hey All,
>
> On the zoo-project IRC channel demo examples and the lack of 
> documentation for the ZOO JS API were discussed recently.
>
> I realize that there is no documentation at the moment, but if anyone 
> has some demos of how the API can be used to achieve process chaining 
> would they be able to post it to the list?
>
>
>           Cheers,
>
>
>           James Sewell
>
>
>           LISAsoft Developer
>
>
>           +61 (3) 8680 3200 / +61 414 688 892
>
>
> _______________________________________________
> Zoo-discuss mailing list
> Zoo-discuss at gisws.media.osaka-cu.ac.jp
> http://gisws.media.osaka-cu.ac.jp/mailman/listinfo/zoo-discuss
>    

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/zoo-discuss/attachments/20100517/02b86d38/attachment.html>