CartoService: A Web Service Framework for Quality On-Demand Geovisualisation
-
Upload
geographical-analysis-urban-modeling-spatial-statistics -
Category
Technology
-
view
653 -
download
1
description
Transcript of CartoService: A Web Service Framework for Quality On-Demand Geovisualisation
![Page 1: CartoService: A Web Service Framework for Quality On-Demand Geovisualisation](https://reader036.fdocuments.in/reader036/viewer/2022070302/546e135baf7959f83e8b5f72/html5/thumbnails/1.jpg)
1 | 18© Rita Engemaier & Hartmut Asche IfG University Potsdam at the ICCSA 2011, 20-23/06/11 Santander, Spain
CartoService – A Web Service Framework for Quality On-Demand GeovisualisationRita Engemaier & Hartmut AscheGeoinformation Research GroupGeography Department, University of Potsdam
![Page 2: CartoService: A Web Service Framework for Quality On-Demand Geovisualisation](https://reader036.fdocuments.in/reader036/viewer/2022070302/546e135baf7959f83e8b5f72/html5/thumbnails/2.jpg)
2 | 18© Rita Engemaier & Hartmut Asche IfG University Potsdam at the ICCSA 2011, 20-23/06/11 Santander, Spain
Outline
1 Introduction & Objectives2 Cartographic modelling process3 CartoService approach4 Conclusion
![Page 3: CartoService: A Web Service Framework for Quality On-Demand Geovisualisation](https://reader036.fdocuments.in/reader036/viewer/2022070302/546e135baf7959f83e8b5f72/html5/thumbnails/3.jpg)
3 | 18© Rita Engemaier & Hartmut Asche IfG University Potsdam at the ICCSA 2011, 20-23/06/11 Santander, Spain
1 Introduction
![Page 4: CartoService: A Web Service Framework for Quality On-Demand Geovisualisation](https://reader036.fdocuments.in/reader036/viewer/2022070302/546e135baf7959f83e8b5f72/html5/thumbnails/4.jpg)
4 | 18© Rita Engemaier & Hartmut Asche IfG University Potsdam at the ICCSA 2011, 20-23/06/11 Santander, Spain
1 Introduction Background
background steady increase in spatial data, tool availability &
accessibility data bases, analysis & processing tools (GIS) based on the fundament of rapid development of
information & communication technology (ICT)SOA, Web-GIS, crowd sourcing, cloud & GRID computation
visible effects grown demand for mapping applications in and outside the
internetGoogleMaps|Earth, GeoCaching, GeoTagging, car navigation ...
changing roles in the provider-user relation & data aquisition OpenStreetMap, Free & Open Source (Web) GIS & processing tools
from monolithic software to interoperable software components and services
![Page 5: CartoService: A Web Service Framework for Quality On-Demand Geovisualisation](https://reader036.fdocuments.in/reader036/viewer/2022070302/546e135baf7959f83e8b5f72/html5/thumbnails/5.jpg)
5 | 18© Rita Engemaier & Hartmut Asche IfG University Potsdam at the ICCSA 2011, 20-23/06/11 Santander, Spain
1 Introduction Web-based Geovisualisation & Maps the digital environment of recent ICT extends the traditional
static 2D map by multidimensional and multivariate representations (views|displays)
traditionally the communication of geospatial information is/was the domain of cartography and maps
BUT: only a small amount of the long-term proven cartographic methods and expertise is yet utilised or at least visible in internet maps and mapping applications
GeoVisDynamic multidimensional representations (views)DB
3D 4D VR PCP ...Static2D
![Page 6: CartoService: A Web Service Framework for Quality On-Demand Geovisualisation](https://reader036.fdocuments.in/reader036/viewer/2022070302/546e135baf7959f83e8b5f72/html5/thumbnails/6.jpg)
6 | 18© Rita Engemaier & Hartmut Asche IfG University Potsdam at the ICCSA 2011, 20-23/06/11 Santander, Spain
1 Introduction Motivation & Objectives
in comparison to traditional derived thematic maps (2D-static) follow aspects can be recognised from the number of 10 to 12 traditional, static map types only
a few are typically used for web-based representations the cartographic quality (including effectiveness &
expressiveness) of web-maps is often poor the lack of graphical quality cannot be bypassed by interaction
or dynamic representation
Objectives provide cartographic visualisation expertise to web-maps|
users integrate cartographic modelling quality in web-mapping
systems
![Page 7: CartoService: A Web Service Framework for Quality On-Demand Geovisualisation](https://reader036.fdocuments.in/reader036/viewer/2022070302/546e135baf7959f83e8b5f72/html5/thumbnails/7.jpg)
7 | 18© Rita Engemaier & Hartmut Asche IfG University Potsdam at the ICCSA 2011, 20-23/06/11 Santander, Spain
2 Cartographic Modelling
![Page 8: CartoService: A Web Service Framework for Quality On-Demand Geovisualisation](https://reader036.fdocuments.in/reader036/viewer/2022070302/546e135baf7959f83e8b5f72/html5/thumbnails/8.jpg)
8 | 18© Rita Engemaier & Hartmut Asche IfG University Potsdam at the ICCSA 2011, 20-23/06/11 Santander, Spain
interaction
2 Cartographic Modelling Communication model
reality
primarymodel
- data -
secondary (graphic)
model
- map -
tertiary model
- user -
(Web)MapData base
![Page 9: CartoService: A Web Service Framework for Quality On-Demand Geovisualisation](https://reader036.fdocuments.in/reader036/viewer/2022070302/546e135baf7959f83e8b5f72/html5/thumbnails/9.jpg)
9 | 18© Rita Engemaier & Hartmut Asche IfG University Potsdam at the ICCSA 2011, 20-23/06/11 Santander, Spain
Generalization Symbolization Production
2 Cartographic Modelling Processing functions
“The strength of maps is their ability to select from reality and abstract the selection via a well designed symbolization. This results in maps that are characterized by their relative emptiness, by visual hierarchy and have a particular appealing style.”(ICA, 2009. Research Agenda)
essential functions of the map design process
Buttenfield and Mark (1991)
![Page 10: CartoService: A Web Service Framework for Quality On-Demand Geovisualisation](https://reader036.fdocuments.in/reader036/viewer/2022070302/546e135baf7959f83e8b5f72/html5/thumbnails/10.jpg)
10 | 18© Rita Engemaier & Hartmut Asche IfG University Potsdam at the ICCSA 2011, 20-23/06/11 Santander, Spain
2 Cartographic Modelling Processing functions
user
real
ity
data set-data model-
map layer-graphic model-
purpose
GEOM
ATTRIB
selection
projection
calculation
analysis &
classification
symbol-isation
GRAPH
G A
![Page 11: CartoService: A Web Service Framework for Quality On-Demand Geovisualisation](https://reader036.fdocuments.in/reader036/viewer/2022070302/546e135baf7959f83e8b5f72/html5/thumbnails/11.jpg)
11 | 18© Rita Engemaier & Hartmut Asche IfG University Potsdam at the ICCSA 2011, 20-23/06/11 Santander, Spain
3 CartoService Approach
![Page 12: CartoService: A Web Service Framework for Quality On-Demand Geovisualisation](https://reader036.fdocuments.in/reader036/viewer/2022070302/546e135baf7959f83e8b5f72/html5/thumbnails/12.jpg)
12 | 18© Rita Engemaier & Hartmut Asche IfG University Potsdam at the ICCSA 2011, 20-23/06/11 Santander, Spain
user
real
ity
data set-data model-
map layer-graphic model-
purpose
GEOM
ATTRIB
selection
projection
calculation
analysis &
classification
symbol-isation
GRAPH
G A
interaction
CartoService
3 CartoService Approach Orchestration & Chaining
projectionweb service
generalisationweb service
classificationweb service
services
![Page 13: CartoService: A Web Service Framework for Quality On-Demand Geovisualisation](https://reader036.fdocuments.in/reader036/viewer/2022070302/546e135baf7959f83e8b5f72/html5/thumbnails/13.jpg)
13 | 18© Rita Engemaier & Hartmut Asche IfG University Potsdam at the ICCSA 2011, 20-23/06/11 Santander, Spain
3 CartoService Approach Orchestration & Chaining
purpose data filter construction evaluationstart
projectionweb service
generalisationweb service
classificationweb service
GUI
services
processes
interface
map
![Page 14: CartoService: A Web Service Framework for Quality On-Demand Geovisualisation](https://reader036.fdocuments.in/reader036/viewer/2022070302/546e135baf7959f83e8b5f72/html5/thumbnails/14.jpg)
14 | 18© Rita Engemaier & Hartmut Asche IfG University Potsdam at the ICCSA 2011, 20-23/06/11 Santander, Spain
internet
provider client
CartoService registry
publishfind bind
describe
use
using the publish-find-bind paradigm from SOA already successful used by OGCs: WMS/WFS, WPS etc. missing service logic and service management facilities
3 CartoService Approach Service Binding
![Page 15: CartoService: A Web Service Framework for Quality On-Demand Geovisualisation](https://reader036.fdocuments.in/reader036/viewer/2022070302/546e135baf7959f83e8b5f72/html5/thumbnails/15.jpg)
15 | 18© Rita Engemaier & Hartmut Asche IfG University Potsdam at the ICCSA 2011, 20-23/06/11 Santander, Spain
DBfiledata >>
map <<
3 CartoService Approach Implementation
metadata >>
style & filter rules <<
![Page 16: CartoService: A Web Service Framework for Quality On-Demand Geovisualisation](https://reader036.fdocuments.in/reader036/viewer/2022070302/546e135baf7959f83e8b5f72/html5/thumbnails/16.jpg)
16 | 18© Rita Engemaier & Hartmut Asche IfG University Potsdam at the ICCSA 2011, 20-23/06/11 Santander, Spain
A B C
D E
3 CartoService Approach Processing Sequence
purpose data filter construction evaluationstart map
DBfile
GUI
![Page 17: CartoService: A Web Service Framework for Quality On-Demand Geovisualisation](https://reader036.fdocuments.in/reader036/viewer/2022070302/546e135baf7959f83e8b5f72/html5/thumbnails/17.jpg)
17 | 18© Rita Engemaier & Hartmut Asche IfG University Potsdam at the ICCSA 2011, 20-23/06/11 Santander, Spain
4 Conclusion
web mapping is not just distributing and viewing data mechanisms are needed to apply same cartographic quality
standards to web maps (geovisualisations) as to traditional 2D-maps
applying SOA principles (web services) to web-based cartographic visualisation is a promising concept to improve cartographic quality of web-maps
components and key processes of cartographic modelling are available and applicable (some already as web-services)
providing cartographic expertise by an interoperable web-service offers possibilities not just for private users, but also to SDIs to improve the communication quality of their web-maps and to direct (transactive) evaluation of these visualisations
![Page 18: CartoService: A Web Service Framework for Quality On-Demand Geovisualisation](https://reader036.fdocuments.in/reader036/viewer/2022070302/546e135baf7959f83e8b5f72/html5/thumbnails/18.jpg)
18 | 18© Rita Engemaier & Hartmut Asche IfG University Potsdam at the ICCSA 2011, 20-23/06/11 Santander, Spain
Thank you for your attention!Questions, remarks and comments are very welcome.
Rita Engemaier & Hartmut AscheGeoinformation Research GroupGeography Department, University of Potsdam
![Page 19: CartoService: A Web Service Framework for Quality On-Demand Geovisualisation](https://reader036.fdocuments.in/reader036/viewer/2022070302/546e135baf7959f83e8b5f72/html5/thumbnails/19.jpg)
19 | 18© Rita Engemaier & Hartmut Asche IfG University Potsdam at the ICCSA 2011, 20-23/06/11 Santander, Spain
typical lacks of cartographic quality in web-maps
1 Introduction Motivation & Objectives
selection
cartographic generalisation
symbology + output quality