doc/pywps.tex

   1 \section{PyWPS}
   2 \label{sec:pywps}
   3
   4 "PyWPS (Python Web Processing Service) is implementation of Web Processing
   5 Service standard from Open Geospatial Consortium.
   6
   7 It has been started on Mai 2006 as project supported by DBU. It offers
   8 environment for programming own process (geofunctions or models) which can
   9 be accessed from the public. The main advantage of PyWPS is, that it has
  10 been written with native support for GRASS. Access GRASS modules via web
  11 interace should be as easy as possible.
  12
  13 PyWPS is written in Python programming language, your processes must use this language too."\cite{pywps}
  14
  15 \subsection{How it works}
  16 After downloading and compiling the source (there are some prerequisite
  17 packages: python, python-xml, python-htmltmpl) you need to setup the
  18 environment of your machine.
  19
  20 The configuration is pywps.cfg and must be located in /etc/.
  21 Here is an example of my configuration.
  22 Section wps define the properties of PyWPS. Here the most important
  23 parameter is serveraddress that store the address of the cgi-bin process
  24
  25 [wps]
  26
  27 encoding=utf-8
  28
  29 title=PyWPS Development Server
  30
  31 version=1.0.0
  32
  33 abstract=Development version of PyWPS. See http://pywps.wald.intevation.org
  34
  35 fees=None
  36
  37 constraints=none
  38
  39 serveraddress=http://localhost/cgi-bin/wps
  40
  41 keywords=GRASS,GIS,WPS
  42
  43 lang=eng,ger,ita
  44
  45 Section provider define some information about the provider of the service.
  46 It is not really relevant for our purpose. We show this section only for
  47 completeness.
  48
  49 [provider]
  50
  51 providerName=University of Trento
  52
  53 individualName=N. M.
  54
  55 positionName=Student
  56
  57 role=Student
  58
  59 deliveryPoint=Street
  60
  61 city=City
  62
  63 postalCode=000 00
  64
  65 country=eu
  66
  67 electronicMailAddress=login@server.org
  68
  69 providerSite=http://foo.bar
  70
  71 phoneVoice=False
  72
  73 phoneFacsimile=False
  74
  75 administrativeArea=False
  76
  77 [server]
  78
  79 maxoperations=3
  80
  81 maxinputparamlength=1024
  82
  83 maxfilesize=3mb
  84
  85 tempPath=/tmp
  86
  87 processesPath=
  88
  89 outputUrl=http:/\/localhost/wps/wpsoutputs
  90
  91 outputPath=/var/www/wps/wpsoutputs
  92
  93 debug=true
  94
  95 processesPath=/home/nico/project/web/trunk/doc/examples/processes
  96
  97 [grass]
  98
  99 path=/usr/lib/grass/bin/:/usr/lib/grass/scripts/
 100
 101 addonPath=
 102
 103 version=6.2.1
 104
 105 gui=text
 106
 107 gisbase=/usr/lib/grass/
 108
 109 ldLibraryPath=/usr/lib/grass/lib
 110
 111 gisdbase=/home/nico/grass
 112
 113 home=/var/www/
 114
 115 \subsection{Pywps in Alpinway}
 116
 117