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The Series 25 DBSN – Unsupervised Generation

Cartographic excerpt of Trento Map

Product Description

The Reference system is RDN2008/Italy Time Zone (Fuso Italia) E-N, EPSG 7794 (equivalent to RDN2008/Italy Time Zone (Fuso Italia) N-E, EPSG 6875). Map’s subdivision in degrees and minutes is indicated in the frame.
Each element covers a mapped area of 18 by 14 km, and the total size of the map, including marginal inscriptions is 87.5 x 60 cm.

Map production is fully unsupervised, with no subsequent interactive editing procedure. Such procedure let to rapid re-generation of maps by means of up-to-date data.

Each map is available in 3 formats: GeoPDF (300 DPI, CMYK colors), GeoTIFF (300 DPI, CMYK colors), and GeoTIFF (300 DPI RGB) without marginal wording.

Cartographic detail with orographic data

Contents

  • Contents are mainly obtained from regional sources, integrated with IGMI data , other National Public Agency data, and data available on-line, such as Open Street Map data;
  • displayed data are the result of revisions based on orthoimagery interpretation and aren’t based on direct area surveys;
  • the road network is updated for major links;
  • administrative boundaries are derived from the cadastral ones, with adjustments to make municipal areas congruent with one another and with the State border;
  • built-up areas are detailed by major land-use categories;
  • toponymy is currently under updating and standardization process.
Cartographic detail of built-up area
Cartographic detail with symbology indicated in different colors

Notes on symbology

Symbols used in maps at scale 1:25,000 have been deeply revised from previous series. Although the style is deeply rooted in IGMI history, some updates have been carried out according to the new objects listed in the technical specifications.

The great variety of reference data has encouraged greater differentiation in the symbols used; for example, buildings are highlighted according to their use: religious, administrative, healthcare, agricultural, commercial, industrial, military, etc.

Symbols have been revised to highlight their logical grouping. For example, in many cases the “color” classifies the object being represented: administrative components have been represented in “purple” (administrative boundaries, town halls, …), electricity-related objects in “electric blue” (power plants, power lines, transformer substations, electrified railways), sports facilities in “red” (stadiums, tennis courts, various sports tracks, etc.), landforms in “brown” (contour lines, embankments, escarpments, sinkholes, etc.), and air transport components are depicted in “aviation blue” (airports, heliports, runways, etc.).

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