Open Source Web Mapping With Umn Mapserver

Open Source Web Mapping with UMN MapServer

Daniel Morissette DM Solutions Group Inc.

MapServer History

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Architecture of a Typical MapServer Application Client Browser

Internet

Web Server MapServer mapserv CGI

HTTP/CGI Request (x,y click location, layers status on/off, etc.)

or

MapScript + PHP or

HTTP Server

MapScript + Perl

(Apache, IIS, etc.)

MapFile

or ...

HTML Template (or App. Scripts)

Map Data External Data

MapServer Key Features v

Server-side

v

Focus on web mapping, not on GIS analysis

v

High performance and reliability

v

Multiplatform (Windows 95 to XP, Linux, *BSD, Solaris, MacOSX)

v

Runs with Apache, Microsoft IIS/PWS, Netscape Enterprise, NCSA Httpd

MapServer Key Features v

Scriptable via MapScript

v

OGC WMS Client and Server

v

On the fly reprojection (vectors and rasters)

v

Direct support for multiple file formats

Input Data Formats Rasters: v

TIFF, EPPL, PNG, JPEG, GIF

v

GDAL (30+ formats)

Vectors: v

Shapefiles

v

OGR (TAB, MIF, DGN, Arc/Info coverages, GML, Tiger, ...)

v

PostGIS, ESRI SDE, Oracle Spatial

Others: v

WMS server connection (and WFS in 3.7)

Output Map Formats Up to version 3.6: v

PNG, JPEG, GIF, WBMP

Version 3.7 (under development): v

Vector output: Flash SWF, PDF, GML (WFS)

v

24 bits image support

v

Output to any GDAL format

User Interface Widgets

v

Map Legend

v

Reference Map

v

Scalebar

v

Navigation controls

v

Query support

v

ROSA applet

Simple CGI – 'mapserv'

v

No coding required, only configuration

v

Predefined functions

v

Controlled via CGI parameters

.map file

.html template

'mapserv' CGI

vector/raster data

MapScript

v

Allows maximum flexibility

v

Full access to all MapServer internal structures

v

Take advantage of existing scripting language modules

v

Available for: • PHP, Perl, Python, Tcl/Tk • Java (experimental)

v

Used by MapLab, Neapoljs, etc

OGC Web Services (OWS)

v

Interoperability between multiple vendors

v

Web Map Service (WMS) • Publish Capabilities (XML) • Serve maps (PNG, JPEG, GIF) for selected area, layers, SRS, etc.

v

Web Feature Service (WFS) • Publish Capabilities (XML) • Serve vector data in GML format • Transaction support (data update)

MapLab

v

MapEdit – Create and Edit .map files

v

MapBrowser – Browse WMS servers and add WMS layers to map

v

GmapFactory – Generate a standalone mapping application

MapLab Plans – CWC MapBrowser GMapFactory

Map Context (XML) UI Context (XML)

My Website mymap.html (HREF to CWC Service with ref. to mymap.xml and myui.xml)

Map Context (mymap.xml) UI Context (myui.xml)

CWC Service WMS

WMS