Kartogramm

Kartogramm is a vector tiles scheme for serving data from the Estonian Land Board's 1:10K national topographic vector dataset (ETAK). It incorporates some other data sources aswell, listed here. The datasets are transformed to unified schema discussed in more detail here. The main focus is still on high level zooms for Estonia, with additional sources only meant as background information on medium and low levels.

The data model is based on Cartiqo by Webmapper licensed under CC BY-SA 4.0 with some country-specific changes to codelists (wetlands, peat mining areas) and other more general changes as regards to the availability of data. But this here is still a work in progress so further changes might come about.

Preview versions of tiles:

• #1
• #2

Data sources

• NaturalEarth v 4.1.0 large scale cultural and physical under terms of use.
• OpenStreetMap data for Latvia via geofabrik.de under ODbL v 1.0.
• 1:250K Generalized Estonian Topographic data by Estonian Land Board under Maa-ameti avatud ruumiandmete litsents, 01.09.2016 (verbatim copy of the license incl. in the zip file).
• 1:10K Estonian Topographic Database under Land Board Open Data License.
• Estonian administrative division (EHAK) by Estonian Land Board under Land Board Open Data License.
• 1:1.2M generalized Latvian administrative division (as of January 2018) by Statistics Latvia via Latvia Open Data Portal via Open Data Portal Watch under CC0 1.0.
• Unofficial urban districts for city of Tartu from the city govt open data page under CC-BY 3.0.
• Unofficial urban districts for city of Tallinn from the city geoportal under Tallinn's open spatial data simple licence agreement.
• Estonian address data (ADS) by Estonian Land Board under CC0.

Layers

Agricultural

Areas used for agricultural purposes. ETAK does not specifically distinguish between types of agricultural land. In order to achieve this would have to do some extra processing based on data from the Agricultural Registers and Information Board. type == greenhouse requires separate attention as it is a collateral area taken from other buildings. This means it will overlap other types of landcover areas.

enums

properties

Boundaries

Boundaries between administrative units are represented as single LineStrings with sidedness information, i.e. the name of administrative unit and country identifier on either side of the vector.

enums

properties

Builtup

Urban areas and buildings. Except for subtypes area.industrial and area.residential all of these are collateral meaning they can overlap other landcover types, e.g. building polygons situated on top of residential area polygons.

enums

properties

Infrastructure

Infrastructure areas, such as road surfaces, bridges and tunnels.

enums

properties

Labels

Point locations for displaying text labels. Has a hierarchy property which can be used to filter between more important and less important labels, e.g. city names for different zoom levels. And rotation for rotating address labels feet downwards so their base can be shown on a styled map towards the street they're associated with.

enums

properties

Natural

Areas of natural vegetation divided into 3 types - high (treecover), low ( grass, shrubs, marshes) and bare (no significant vegetation present or bare ground).

enums

properties

Railways

LineString features for railroad tracks. In addition to type and subtype has also class which defines if this is a main, side or branch rail line.

enums

properties

Roads

Roads as linestrings. type encodes the functional class, and in addition class represents the kind of cover for the road. Z-levels in relative_height are recalculated from the original data z-at-the-beginning, z-at-the-end of vector to z-for-linestring. relative_height is encoded as

• -1 - road passes under another road (at z-level 0),
• 0 - road on the same (usually ground) level
• 1 - road passes over another road (at z-level 0)

bridge and tunnel are booleans meant to denote if this section of the road passes over a bridge or goes through a tunnel.

Boolean oneway denotes if this section of the road is meant for oneway car traffic only. True means traffic only in the road vector direction, False that traffic is allowed in both directions.

enums

properties

Water

Areas under water as polygons. Includes sea, lake for standing water as well as water_way for larger rivers which are mapped as polygons at 1:10K.

enums

properties

Waterline

Different types of flow water bodies as linestrings. type denotes a recoded waterline length. class for the official classification of the flowing water body.

enums

properties

Composition

Low-level zooms

Low level zooms are defined as zooms 0-5 (incl).

Med-level zooms

Medium level zooms are defined as zooms 6-10 (incl).

High-level zooms

High level zooms are defined as zooms 11+. The following table lists available layers and their respective source data for these zooms

License

This database schema is released under CC BY-SA 4.0