The orthogonisation of objects simplified using the Sester’s method representing groups of buildings in Gdańsk district - scale 1:10000 - Open Research Data - Bridge of Knowledge

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The orthogonisation of objects simplified using the Sester’s method representing groups of buildings in Gdańsk district - scale 1:10000

Description

The process of automatic generalization is one of the elements of spatial data preparation for the purpose of creating digital cartographic studies. The presented data include a part of the process of generalization of building groups obtained from the national geodesy and cartography resource from BDOT10k (10k topographic database) [1].

Data obtained from the simplification operator activity with Sester’s method (GDA_SimplificationSester.geojason) are subjected to the next stage of the sequential generalisation process – orthogonalization. This is a two-stage process:

- the segments with a similar azimuth are averaged (similarity within the epsilon in the angular extent) and the direction of the azimuth of each segment is compared and rotated according to the azimuth of the longest segment,

- from the longest part of the object's boundary, subsequent sections are rotated in relation to their own center so that a right angle is created.

Literature

[1] Regulation of the Ministry of Administration and Digitization, W sprawie bazy danych obiektów topograficznych oraz bazy danych obiektów ogólnogeograficznych, a także standardowych opracowań kartograficznych [Regarding the database of topographic objects and the database of general geographic objects, as well as standard cartographic studies.]

Dataset file

GDA_OrthogonalizationSester.zip
2.4 MB, S3 ETag 88eb851601a7088bfc91708867f066b9-1, downloads: 47
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download file GDA_OrthogonalizationSester.zip

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License:
Creative Commons: by 4.0 open in new tab
CC BY
Attribution

Details

Year of publication:
2020
Verification date:
2020-12-28
Creation date:
2020
Dataset language:
English
Fields of science:
  • Civil engineering and transport (Engineering and Technology)
DOI:
DOI ID 10.34808/d6r3-vm69 open in new tab
Series:
Verified by:
Gdańsk University of Technology

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