ICGC automatic generalization: transport, buildings ...€¦ · Base topogràfica...
Transcript of ICGC automatic generalization: transport, buildings ...€¦ · Base topogràfica...
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ICGC automatic generalization:
transport, buildings, hydrography
Àrea de Bases
October 2018
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Automatic generalization workflow from the ICGC master DB ESRI Workshop Zurich June 2016
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Yellow Products compiled
Blue Products derived automatically, without manual editing
Orange Products derived applying generalization
3 D
2 D
BT-5M
BT-25M
MAP 5M
BT-50M
BT-250M
MAP 10M
MAP 25M
MAP 50M
MAP 100M
MAP 250M
DATABASES MAPS
CT-1M MAP 1M
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ICGC topographic databases
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The master topographic
database BT-5M
Data sources:
Photogrammetric data capture (DMC)
Additional data from other DBs (map names)
Accuracy:
1m X,Y / 1,5m H
3 D
Covering Catalunya:
32.000 km2
Updating cycle:
5 years over all the country
More frequently over the most dynamic areas
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Huge demand of updated information
Homogeneous information across all the levels of detail
High pressure to obtain a wide range of derived products for
visualization and other applications in internet and mobile devices
Goals to achieve:
Provide data updated frequently
Provide homogeneous data across all the LODs
Provide a wide range of derived products for visualization and
other applications in internet and mobile devices
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User requirements
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Huge demand of updated information
Homogeneous information across all the levels of detail
High pressure to obtain a wide range of derived products for
visualization and other applications in internet and mobile devices
Goals to achieve:
Provide data updated frequently
Provide homogeneous data across all the LODs
Provide a wide range of derived products for visualization and
other applications in internet and mobile devices
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User requirements
Implementation of a
fully automatic generalization workflow
from the master topographic database for obtaining
the different LOD data
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Base topogràfica multirepresentació: vialitat i polígons de poblament Febrer 2018
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Current status of generalization
system
The new workflow is not yet automated, in development
Software used:
ArcGIS, FME, own applications.
Processes in Python. More powerful and efficient
than Model Builder.
Model Builder only for testing.
On premise.
The goal is to obtain:
Data
Products
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Base topogràfica de Catalunya 1:5000 v3.0 Octubre 2018
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Area: aprox. 50.000 hes
Layers:
Transportation network
Buildings
Hydrographic network
Detail: 5 levels
1 2 3 4 5
1: 1 890(0,5m/pix*)
1: 3 780(1m/pix*)
1: 7 559(2m/pix*)
1: 15 118(4m/pix*)
1: 30 236(8m/pix*)
Test area
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Methodology
Mainly star generalization
Partitions: buffer around 2 kilometres to the area to be processed
Nivell 3
Nivell 2
Nivell 1
Nivell 4
Nivell 5
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Methodology
Continuous symbology between the diferents levels of detail
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Base topogràfica multirepresentació: vialitat i polígons de poblament Febrer 2018
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Automatic generalization challenges
Source data:
Richer data to facilitate the processes and improve the results
Software:
Requirements list elaborated for the WG
Initiated using ArcGIS desktop. Now migrating to ArcGIS Pro:
Better results
Taking advantage of the tools to migrate Python
processes
Product specifications:
New design more adapted to the current needs
Quality:
Limitations due to the tools and the data
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Base topogràfica multirepresentació: vialitat i polígons de poblament Febrer 2018
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Examples
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Base topogràfica multirepresentació: vialitat i polígons de poblament Febrer 2018
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Examples
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Base topogràfica multirepresentació: vialitat i polígons de poblament Febrer 2018
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How can Esri better support you?
List of requirements
What are your expectations of the Working Group?
Share information with other ESRI users
Prioritize the ESRI support tasks
Support
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Thank you!Institut Cartogràfic i Geològic
de Catalunya
Parc de Montjuïc,
E-08038 Barcelona
41º22’12” N, 2º09’20” E (ETRS89)
www.icgc.cat
twitter.com/ICGCat
facebook.com/ICGCat
Tel. (+34) 93 567 15 00
Fax (+34) 93 567 15 67
Base topogràfica de Catalunya 1:5000 v3.0 Juliol 2018
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