Kurs PostGIS für Fortgeschrittene: Unterschied zwischen den Versionen

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[[Kategorie:Weiterbildung]] [[Kategorie:PostGIS]] [[Kategorie:PostgreSQL]]

Version vom 19. Januar 2012, 22:11 Uhr

GISpunkt-Seminar "PostGIS für Fortgeschrittene" (Kürzel Sem_PostGIS_FF).

Fr. 20. Januar 2012. Nicht zu verwechseln mit GISpunkt-Seminar PostgreSQL für Fortgeschrittene. Siehe auch:

Programm

  • 09:00-09:15 Einführung, Vorstellung. (sep. Gruppe (A) diejenigen, die installieren, (B) die schon installiert haben) (SK)
  • 09:15-10:00 (A): Installation inkl. Daten einlesen. (SK mit Helfer)
  • 09:15-10:00 (B): Teil 1. Daten einlesen, Teil 2. Selbsttest lösen (Repetition aus SQL und Kurs "Einführung in PostGIS). (AN+SK)
  • 10:00-10:15 Überblick PostGIS 2.0, inkl. Extensions, Datentyp Geography. (SK)
  • 10:15-10:30 SQL-Shell in QGIS. (AN)
  • 10:30-11:00 PAUSE
  • 11:00-11:45 "Spatial SQL Advanced" mit PostgreSQL: DE-9IM, Views (mit IDs), Trigger (Nachführung Fläche, Constraints im Leitungskataster), Rules (Updatable Views), Konsistenz-Checks. (AN)
  • 11:45-12:30 Neue Vektorgeometrie-Funktionen in PostGIS 2.0 mit Übung. (SK)
  • 12:30-13:30 MITTAGESSEN
  • 13:30-14:00 Übung komplexe räumliche SQL-Abfragen. (AN)
  • 14:00-15:00 PostGIS Raster mit Übung. (AN)
  • 15:00-15:30 PostGIS 3D und PostGIS Topologie. (SK)
  • 15:30-16:15 Ev. Performance-Optimierung, PostGIS-spezifischer Server-Setup (Konfiguration, Tablespaces, Clustering, Read-only-Optimierung). (SK)
  • 16:15-16:30 Ausblick (u.a. Routing). (SK)

Vorkenntisse:

  • Kurs "Einführung in PostGIS/PostgreSQL", bzw. Kenntnisse von SQL sowie Spatial SQL-Funktionen
  • PostgreSQL Tools (psql, pgadminIII), PostGIS-Tools (shp2pgsql)
  • Kenntnisse eines GIS zur Visualisierung und zum Editieren von Geodaten

Software

Unterlagen/Übungen

Siehe auch Materialien im Kursordner.

Online-Doku.:

Literatur:

Support/Firmen:

Daten

Werden separat abgegeben.

Installation

Installation of PostgreSQL 9.1 (production, 32bit) with PostGIS 1.5 (production), PostGIS 2.0 Experimental (32bit) and QGIS:

  • Step 0: Overview of installation of PostgreSQL 9.1.x and PostGIS 1.5 Instructions (PDF)
  • Step 1: Installation of PostgreSQL 9.1.x (Download PostgreSQL for Windows 32bit)
    • NOTE FOR ALL USERS! Don't choose '64bit Build' - even if 64bit-CPU available (because of PostGIS 2.0 Experimental which is 32bit-only)
    • Make a note of the password. If PostgreSQL is used on your own laptop (localhost) and for educational purposes, we uses user 'postgres' with password 'postgres'
  • Step 2: PostGIS 1.5 (production, 32bit)
    • Use Stackbuilder from PostgreSQL postprocessing step (NOTE: Internet access is needed here)
  • Step 3: Installation of PostGIS 2.0 (experimental) (Windows 32bit, see weblink "For PostgreSQL 9.1 (compiled against PostgreSQL 9.1.0...")
    • Make a copy of the whole <<POSTGRE_DIR>>\bin to a backup directory since some PostGIS 1.5 executables will be replaced by PostGIS 2.0.
    • Unzip ZIP-file of PostGIS 2.0 to an temporary installation directory (=> <<POSTGIS_INSTALL_DIR>> = 'postgis-pg91-binaries-2.0.0svn/').
    • Follow instructions of the README file:
      • Make a copy of makepostgisdb_using_extensions.bat and makepostgisdb.bat, and edit POSTGIS_INSTALL_DIR to adapt following variables: PGPASSWORD, THEDB, PGINSTALL (see listing below).
      • The only difference in these edits is one enviironment variable: for makepostgisdb_using_extensions.bat its 'THEDB=postgis20_extension' and for makepostgisdb.bat its 'THEDB=postgis20'.
      • Open a CMD-Shell as administrator (NOTE FOR WINDOWS USERS! Choose cmd.exe from Start menu but run cmd.exe with right click on it 'Run as administrator'!)
      • In CMD-Shell run makepostgisdb_using_extensions.bat and makepostgisdb.bat
  • Step 4: ActivePerl
    • The database (Uster) needs pl/perl scripts inside PostsgreSQL db. We install ActivePerl (Windows-Version).
  • Step 5: Installation of QGIS (Quantum GIS) Stable Version and Trunk Version
    • There are two different installers. We use OSGeo4W (osgeo4w-setup.exe) (NOTE: Internet access is needed here)
      • When asked about the installation/runtime directory path, choose default (e.g. 'C:\OSGeo4W') on Windows. Usually you would install programs under 'C:\Program Files (x86)'. But there is evidence that some tools could be bothered by spaces in paths.
      • Choose "Advanced Installation" (use the newest version of each software => mostly the first click in the installation tree)
      • Category „Commandline Utilities“: setup: OSGeo4W Installer/Updater
      • Category „Desktop“: qgis, qgis-dev (NOTE: 'qgis-dev' means "Trunk"-Version)
      • Category „Libs“: psycopg2, pyqwt5-qt4, qt4-devel
    • NOTE: This installation includes by default Python (2.5.2)
  • Done.

File 'makepostgisdb_using_extensions.bat':

 REM this is an example of how to create a new db and spatially enable it using CREATE EXTENSION
 set PGPORT=5432
 set PGHOST=localhost
 set PGUSER=postgres
 set PGPASSWORD=postgres
 set THEDB=postgis20_extension
 set PGINSTALL=C:\Program Files (x86)\PostgreSQL\9.1
 set PGADMIN=%PGINSTALL%\pgAdmin III
 set PGBIN=%PGINSTALL%\bin\
 set PGLIB=%PGINSTALL%\lib\
 set POSTGISVER=2.0
 xcopy bin\*.* "%PGBIN%"
 xcopy /I /S bin\postgisgui\* "%PGBIN%\postgisgui"
 xcopy /I plugins.d "%PGADMIN%\plugins.d"
 xcopy lib\*.* "%PGLIB%"
 xcopy share\extension\*.* "%PGINSTALL%\share\extension"
 "%PGBIN%\psql"  -c "CREATE DATABASE %THEDB%"
 "%PGBIN%\psql"  -d "%THEDB%" -c "CREATE EXTENSION postgis;"
 "%PGBIN%\psql"  -d "%THEDB%" -c "CREATE EXTENSION postgis_topology;"
 
 REM Uncomment the below line if this is a template database
 "%PGBIN%\psql" -d "%THEDB%" -c "UPDATE pg_database SET datistemplate = true WHERE datname = '%THEDB%';GRANT ALL ON geometry_columns TO PUBLIC; GRANT ALL ON spatial_ref_sys TO PUBLIC"
 
 pause

Tipps und Tricks

Selbststudium

  • tbd.