26.3.14

HiDPI retina map tiles for Leaflet, OpenLayers or Google Maps API with MapTiler 0.5.3

The new MapTiler 0.5.3 comes with several exciting new features:
  • Rendering of Retina / HiDPI map tiles from any raster geodata
  • Improved output into minimised PNG (better defaults for colour quantisation)
  • Support for maps crossing the international dateline (+ or - 180 degrees longitude)
  • Background colour of base maps selectable in the user interface under Advanced options
  • Google Earth API web viewer generated for KML SuperOverlay
  • Checking for updates is automated and installation of new versions simplified [Start]
  • Graphical User Interface for Linux operating system available for MapTiler Pro customers next to the command line for full automation
  • Improved Mac OS X 10.9 support (open file dialogs, upgrade to QT 4.8.6rc)
  • Better handling of thousands of input files in the graphical user interface [Pro]
  • Several bug fixes, improved stability on older Windows 
In case you are an owner of a Retina / HighDPI mobile device such as iPad or iPhone or recent tablet with Android or one of the Apple MacBook Pro Retina or Google Pixel, then have a look at examples of the beautiful retina high DPI overlay maps in Google Maps APILeaflet, OpenLayers or OpenLayers 3.
It is extremely easy to prepare such sharp maps from any raster geodata (GeoTIFF, etc) or even scanned paper maps or standard JPEG or PNG - and then upload and host them on Amazon S3, your own server or for free on Dropbox or on Google Drive hosting. See our video tutorials.

Would you like to try the MapTiler Pro demo with your own data on your own computer? It is available on request via http://www.maptiler.com/.

14.3.14

EPSG.io: Find Coordinate Systems Worldwide

Klokan Technologies GmbH, Switzerland (http://www.klokantech.com/) is pleased to announce a new open-source web service with a database of coordinates systems used in maps worldwide.

EPSG.io (http://epsg.io/) simplifies discovery of coordinate reference systems utilized all over the world for creating maps and geodata and for identifying geo-position. It is a practical tool for anybody interested in cartography and digital map making, who needs to know exact latitude and longitude values for numerical coordinates in different spatial reference systems. Included map application allows to show the precise location anywhere on the planet also visually.

The website comes with a fulltext search indexing over 6000 coordinate systems. The search starts by typing the name of the system, name of covered country, state or any of the combinations of these. Searching for EPSG and ESRI codes is supported as well.

Each coordinates system and transformation has a short permanent link and is exportable in various formats (WKT, XML, OGC GML, Proj.4, JavaScript, SQL).

The web has also API allowing integration of the search functionality and transformations in third party applications.

Soon this functionality will be used the by the MapTiler (http://www.maptiler.com) to simplify the transformation or existing raster geodata and images into Google Maps and OGC WMTS compatible tiles. MapTiler is the easiest way how to prepare custom maps for mobile devices and web presentation.

Georeferencer (http://www.klokantech.com/georeferencer/), the online service for turning scanned maps into geodata in a web browser, will soon utilize EPSG.io service as well - allowing a user-friendly selection of any coordinate system and map projection during the georeferencing process.

The EPSG.io website is built around the official EPSG database maintained by OGP Geomatics Committee (http://www.epsg.org/). The database comprises of very detailed geodetic parameters from a range of sources and authorities. EPSG.io simplifies access to exact parameters for thousands of spatial reference systems, transformations and conversions, datums, ellipsoids, meridians, units, etc.

The whole project is open-source - with complete source code available on GitHub: https://github.com/klokantech/epsg.io
Contribution from the online community is very welcome. New features, fixes of bugs and additional functionality can be easily developed by anybody who is interested in improvement of the system.

The web supports OpenSearch protocol. In Chrome web browser it is possible to type into address bar "epsg.io" then <tab> and your search phrase. Firefox can add the system to the list of supported search engines as well. Web site is available as Google Chrome OS application (http://goo.gl/frnJxu). The website availability and performance is improved by a CDN with over 20 caching servers worldwide.

The initial version of this open-source project has been developed by the Moravian Library in Brno, Czech Republic (http://www.mzk.cz/) thanks to support from the Programme of Applied Research and Development of the National and Cultural Identity (NAKI) from the Ministry of Culture of the Czech Republic, project No. DF11P01OVV003 - TEMAP - Technology for access to Czech map collections: methodology and software for protection and re-use of national cartographic heritage (http://www.temap.cz/en/).

The main features

  • Fulltext search for the complete database of coordinate systems from EPSG
  • Short rememberable URLs, i.e. http://epsg.io/4326
  • Type GPS latitude/longitude and get projected coordinates or vice versa
  • Precise numerical location on a map / aerial photo for any place on the planet
  • Export definitions in various formats, including WKT, OGC GML, XML, Proj.4, SQL, JS, etc.
  • Facets for retrieval of alternative record types from the official EPSG database
  • API for the search in EPSG database and for transformations

Frequently answered questions

How does the system differ from spatialreference.org and epsg-registry.org?

It is much easier to find the coordinate systems (for example query "utm wgs norway" gives list of all UTM zones with WGS covering area of Norway). 
All available transformations for selected coordinate reference system are visible and applicable (it is possible to find alternative 7 parameter transformation for Proj4js replacing a default grid transformation, or choose a transformation with higher accuracy for a selected area).
Preview location for any numerical coordinates on a detailed map - with copy&paste functionality.
Complete EPSG database with codes for datums, units, transformations, etc is indexed and searchable, and the individual EPSG records are linked from every detail page.

Main contributors for Klokan Technologies GmbH

  • Petr Pridal (managing director KlokanTech.com, work done as part of PhD thesis at Czech Technical University of Technology - Geodesy and Cartography)
  • Tomas Pohanka (internship at KlokanTech.com, Masters degree candidate at Palacky University Olomouc - Geoinformatics)
  • Radim Kacer (designer at KlokanTech.com)

26.2.14

Video tutorial: Load geographical location from KML

New MapTiler Video tutorial "How to load a geographical location from KML" is online on Youtube


17.1.14

Visual georeferencing in MapTiler 0.5.2

Klokan Technologies is pleased to announce the launch of a new version of MapTiler (0.5.2). For the first time this version includes georeferencing functionality, which allows to turn an image without any geographical information into a real map. It has never been easier! All our customers are being upgraded now.

What do new features of MapTiler 0.5.2 include?

- Georeferencing visually with GCPs (initial version)
- Mac OS X 10.9 Mavericks full support
- Windows installer for both 32bit and 64bit versions
- Restored broken support of Windows XP SP3
- Several bug fixes and smaller improvements

We also prepared new MapTiler tutorial available at:



http://www.youtube.com/watch?v=eJxdCe9CNYg


What are the planned goals for MapTiler in 2014?

Here are some of the plans and new features which we work on:

- OGC GeoPackage as an output
- Easier selection of coordinate systems (EPSG) and tiles in local grids
- Mobile applications (Android / iOS) with open source code
- Improved TileServer.PHP and WMTS hosting
- Direct support for rendering retina tiles (512x512px)
- Enhanced interface for visual georeferencing and clipping with cutline
- New input formats (GeoPDF, etc)
- Updating the existing tilesets with new files - with rendering on top of the tiles.

Moreover, a new hosting technology for very large map tilesets is now being tested - with CDN cache and delivery from over 20 servers all over the world, support for WMS, WMTS, and secure HTTPS protocol and unlimited transfers of the published maps.

Do you want to take part in the testing? Ideas for improvement? Contact us via our email: info@klokantech.com

26.11.13

The British Library Georeferencer: new 2800 maps!

In these days you have the unique opportunity to get involved and help the British Library to georeference new digitized maps, which were selected for scanning and online publishing recently.

Nearly 2800 maps are now available online and waiting for georeferencing. It is really easy process.

See this video:

and start at:  http://www.bl.uk/maps/

This release has implemented new functionality for use within social media, including better personalisation and visualisation options. It is possible to compare two old maps and create a personal map collection with the new "My Maps" function.

Klokan Technologies also prepared new Facebook application for georeferencing maps from the BL, you can participate and in the same moment compete with your FB friends: https://apps.facebook.com/georeferencer/

Moreover, involved contributors can choose from two different collections of maps, which were selected for release:

First collection represents maps of British and Irish towns and its fire insurance plans (2500 maps). This collection provides information, which you will not find somewhere else, not just about the land use, buildings, but also about the urban landscape in the late 19thc - 20th century.




Second collection consists of military maps from the World War I and US Civic War (225 maps). Among these maps you can find trench maps, campaign charts and also ethnographic mapping.

Each contributor will see his/her details and the best contributor will be publicly announced.

For more information, please follow this link: http://britishlibrary.typepad.co.uk/magnificentmaps/2013/11/2700-new-maps-online-for-georeferencing.html

18.11.13

Battersea Arts Centre Digital Archive powered by Omeka


At the occasion of 120th anniversary celebration of the opening the building, the Battersea Arts Centre (BAC) in London together with Klokan Technologies GmbH have launched the digital archive website powered by the open-source software and online community. BAC created this vital online resource which will help to develop more partnerships, reach new audiences and follow the BAC's mission: to invent the future of theatre.




Omeka 2.0

Klokan Technologies have adjusted and deployed Omeka (http://www.omeka.org/), the open source content management system for online digital collections. Specialized in development of applications of open-source software for the culture heritage sector, we customized the Omeka core for BAC project and enriched it with new functionality and custom theme.

Omeka was designed to satisfy the needs of institutions that lack extensive technical staff and large budget and allows the archive to expand and improve as the online user community employ the available contribute function.

Technology

Unique photo wall technology has been used for exploring the attractive content (as you can see on the picture). We have applied a new fast zooming approach for even better interaction experience with the scanned photos and other digital artifacts. Audience can also use an instant search function with advanced filtering by time and additional attributes.

Klokan Technologies GmbH offer culture heritage institutions development of similar online applications, which open the archives and documents to completely new forms of exploration, discovery and online research and ensure the preservation of the originals.







11.11.13

The Austrian National Library Google Books open-source image server

The Austrian National Library scanned first 100.000 complete historical books from the beginning of 16th century until the second half of the 19th century within the project Google Books project participation. These unique historical books are now accessible online.

You can read the Press Release here:
http://www.onb.ac.at/services/presse_21764.htm

Klokan Technologies GmbH provided the Austrian National Library with the open-source IIPImage software for the display of scanned books from JPEG2000 format.


Klokan Technologies extended the mentioned open-source project with the implementation of IIIF protocol. Used protocol was defined by the consortium of people from Stanford University, Oxford University, British Library etc. (for more info please visit:  http://www-sul.stanford.edu/iiif/image-api/1.1/).

The IIIF image API specifies a web service that returns an image in response to a standard http or https request.

About 600.000 copyright-free works are supposed to be digitized.