The present state of geographic information systems for towns and cities in the czech republic
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The present state of geographic information systems for towns and cities in the Czech Republic. Ing. Jiří Cajth aml Department of mapping and cartography Faculty of Civil Engineering , CTU in Pra gue Thákurova 7 166 29 Praha 6 E – mail: [email protected] Aims of the work.

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The present state of geographic information systems for towns and cities in the Czech Republic

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The present state of geographic information systems for towns and cities in the czech republic

The present state of geographic information systems for towns and cities in the Czech Republic

Ing. Jiří Cajthaml

Department of mapping and cartography

Faculty of Civil Engineering, CTUin Prague

Thákurova 7

166 29 Praha 6

E – mail: [email protected]


Aims of the work

Aims of the work

-survey of usage of GIS in offices

- get information about implementation

- discover advantages and disadvantages of GIS products

-get some relative information about GIS products and their usage

- find problems of GIS usage in the CR


Specific surveys

Specific surveys

1.Survey in municipal authorities

- email correspondence with offices (58 out of

72(81%) of towns and cities answered to my

questionnaire)

- web pages of towns and cities

-data from students work at our dempartment

2.Survey of GIS products

- web pages of firms

- conference reports concerning GIS

-email correspondence with GISproducers


Complex is vs gis

Complex IS vs. GIS

-two options how to create GIS

a.create complex IS with GIS part

(products T-WIST, Cityware,

City2000)

b.create only GIS and try to cooperate

withother IS, which is used in the

office

(widely used IS are products

GINIS, Radnice VERA, MUNIS,

Stavebníúřad VITA, SAP R/3,

Radní, Starosta,…)


Complex is 14 out of 58 offices 24

Complex IS: 14 out of 58 offices (24%)

T-WIST (by T-Mapy) – 6x

GIS part consist of

thick client (ArcGIS or GISel)

thin client (T-map server)

Cityware (by Geovap) – 7x

GIS part consist of

thick client (Microstation + GeoStore)

thin client (GSWeb)


Platform gis vs independent solution

Platform GIS vs. independent solution

Two groups of software products

1. superstructures of general products

(so called “platform products”)

2.independent solutions

(don’t need any other software to function)


Platform gis 35 out of 58 offices 60

Platform GIS: 35out of 58 offices (60%)

Superstructures of products by

- ESRI – 14x

(T-Mapy, Digis, VARS, Elgeo)

- Intergraph – 1x

(Espace)

- Autodesk – 1x

(AAC, Sitewell, DataSystem)

- Bentley – 17x

(Geovap, HSI, Berit)

- UMN – 2x

(Help Service, Help Forest)


Independent gis 15 out of 58 offices 26

Independent GIS: 15out of 58 offices (26%)

Products by local producers

- City2000 – 1x (product City2000)

- Gepro – 5x(product MISYS)

- Geodézie-Topos – 4x(product Gramis)

- Geod. Krkonoše – 2x(product GIMIS)

- T-Mapy – 1x(product GISel)

- Unicom Consult – 2x(product KomPas)


Usage of rdbms

Usage of RDBMS

- advantages

- multi-user editing

- transactions

- versioning

- widely used

- Oracle (T-Mapy, Geovap, Sitewell, Unicom, Berit,...)

- MS SQL (T-Mapy, Geovap, Geodézie Krkonoše, Unicom,...)

- external connection by ODBC


Approach to rdbms

Approach to RDBMS

- gate for storing data into database

- ArcSDE by ESRI (used by T-Mapy)

- GeoStore by Geovap

- PostGIS – OpenSource project

– gate for PostgreSQL


Support of data formats

Support of data formats

- vector data

- most supported are

- SHP, Coverage (by ESRI)

- DWG, DXF (by Autodesk)

- DGN (by Bentley)

- MIF, MID (MapInfo)

- VFK (interchange format of

Czech cadastre)

- problems with own formats of local products(VYK in MISYS, BD in Gramis,...)

- universal format - GML


The present state of geographic information systems for towns and cities in the czech republic

- raster data

- most supported are

TIFF, GeoTIFF, JPEG, GIF, BMP, CIT,

WMF, ECW, PNG, PCX, MrSID, RLE, RAS, COT

- attribute data

- more modern approach is to save attributes into RDBMS


Gis functions

GIS functions

- tools for geometrical data upkeeping

- better refined in platform GIS

(topology rules,...)

- tools for attribute upkeeping

- analytical functions

- show “power of GIS”, often

missing in independent solutions

- visualization tools


Data for gis

Data for GIS

- most important part (most expensive)

-cadastre data (VFK or VKM+DBF)

- raster cadastre maps (CIT)

-ortophoto maps (TIFF, JPEG, MrSID)

-urban plans (mostly DXF or DWG)

- digital technical maps of cities (DTMM, mostly in

format DGN)

- ZABAGED

-DTM

-many others....


Price of gis

Price of GIS

GIS = hardware + software + data

hardware – PC, scanner, plotter, internet connection,...

software – GIS product, web server, relational database,...

data – up to 80% of total costs


Total costs

Total costs

- only 36 offices answered

1. big regional cities (6 of 36)

– costs above 15 million CZK

2. bigger district cities (9 of 36)

– costs between 5 and 15 million CZK

3. smaller district cities (21 of 36)

- costs under 5 million CZK


Open source gis

Open Source GIS

-GRASS – analytical GIS

-PostgreSQL – relational database

-PostGIS – gate for storing data into database

-MapServer – map server, a project of UMN

-QGIS – tool for browsing many formats of data

-JUMP – tool for browsing and manipulation of

many formats of spatial data (like ArcView)

-Deegree

-Help Service Remote Sensing – applications above Mapserver


Information about gis implementation to offices

Information about GIS implementation to offices

Who implements GIS?

- mostly the manufacturers of software

- sometimes geodetic firms

- rarely offices themselves

Year of introducing GIS to the office

- every year since 1996 several towns introduced

GIS

- no trend


Gis administration

GIS administration

45 offices answered

4 groups

- 6x – more than 2 administrators (district cities)

- 9x – 2 administrators (satisfactory)

- 25x – 1 administrator

- 5x – without administrator (external firms)

- in many cases office network administrator is also GIS administrator


Conclusions

Conclusions

-complex IS – best way, but it means

reconstruction of whole system (problem)

-platform GIS (better, more expensive, ideal for

bigger cities)

-independent solution (without analytical functions, cheaper, ideal for smaller towns)

-data storing – best way = RDBMS

-interoperability (data formats) – problems with own data formats, GML should be used

-OpenSource solutions = alternative to

commercial products


Thank you for your time and attention

Thank you for your time and attention

Ing. Jiří Cajthaml

Department of mapping and cartography

Faculty of Civil Engineering, CTUin Prague

Thákurova 7

166 29 Praha 6

E – mail: [email protected]


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