Digital Geography

Amazing styling in QGIS 2.6

Screenshot from 2014-11-23 14:49:53

Since QGIS 2.6 was released with a lot of new features and functions I’ve been testing it sporadic and have come to realise that the quality and functionality of symbol styling and labelling is so high that ESRI ArcMap no longer can match it. Honestly I haven’t tested the 10.3 version of ArcMap, so my experience is based on previous versions. Here I’ll use an example to highlight some of the extensive possibilities offered in QGIS.

Short Announcement: Webinar “Get started with CartoDB” on 20/11/2014 1PM EDT

Logo CartoDB

We announced some surprises of CartoDB last week, especially that the map views are not anymore limited as well another post last month, that CartoDB opens some restrictions for usage in classrooms and universities as well. This could be very straight forward and promising for students as well for professors. If you every wanted to try working with CartoDB which is going to be more userfriendly through the new announcement, here comes your chance for a first introduction.     Tomorrow, Thursday 20/11/2014 at 1PM EDT (time zone converter), The webinar was recorded and can be found here. CartoDB will give… bringing Swiss geodata potential to life responsive

A priorized project of eGovernment Switzerland Usage and exchange of geodata is fostered by in a significant way. The Federal geoportal is operated by the Federal Office of Topography, swisstopo, on behalf of the coordinating body for Federal geographical information with the aim to implement the Geoinformation Act. The purpose of this Act is to ensure that geodata relating to the territory of the Swiss Confederation is made available to the Federal, Cantonal and municipal authorities, to industry and commerce, to academic and scientific institutions and to society at large, for the broadest possible use, in a sustainable, up-to-date,…

SciPy integration in ArcGIS

scipy_optimize_sixhumpMost of GIS users today will probably work with ArcGIS. Since version 10 the implementation / integration of Python into the ArcGIS framework and ArcPy it’s important for ArcGIS users to be aware of the capabilities of using Python in batch processing tasks, data manipulation and the broad possibilities of Python itself (eg. Numpy, Sympy etc.). SciPy will another topic for the future…

QGIS 2.6: insights

QGIS 2.6 sttart screen

Yesterday QGIS 2.6 Brighton was released. Now all systems are supported as also KyngChaos compiled a new version for QGIS 2.6 (source). In this post, I thought myself to go through the advertised features and changes introduced, so it may be a bit far. So let’s follow the QGIS changelog. Export DXF enhancements DXF is not something I normally use, but in many CAD and measuring instruments (total stations type), it is a common format. Exports can be created via the menu (Project> DXF Export …). Since I am not used to work with DXF it is difficult to have… library

How to use OpenStreetMap, guides for beginners and advanced users on

2014-10-28 19_14_51-LearnOSM

OpenStreetmap is the fastest growing community mapping project of all times. Beside the “normal” map result, what you can use for your daily navigation through cities and countries like Google Maps, OpenStreetMap allows you to get the geodata and use it for your own ideas and projects (with some licence regulations). For many peoples the difficult part is not getting the data but the usage and adoption. Therefore the Humanitarian OpenStreetMap Team created

Non-standard use of Web GIS on the example of OpenWebGIS functionality

OpenWebGIS_WITTHAUS9In this article we consider the use OpenWebGIS, as one of the free Web GISs for analyzing of buildings drawings, as well as mapping and measurement of small-scale objects that are demanded in archeology, architecture, biology, medicine and other fields of human activity. Tell me, how many online Web GISs can use the maximum zooming ratio of more than 19? Those Web GISs which use OpenStreetMap as a base map, generally have a maximum zoom to 19. Those Web GISs which use Google Maps as a base map, can increase to no more than 19-20, but in some cases this…

Free Global Soil Grids at 1km resolution

Web interface to download the data

I would like to introduce you the newly global coverage of soils grid at 1km ground resolution (online since August 29th 2014). The dataset is funded and provided by ISRIC. What attributes does the data contain? All of you who are working on soils know the difficulty to find datasets with reasonable soil attributes like soil type and different soil properties. Even 1km ground resolution isn’t the best choice for many studies and calculations the data can be used for different purposes like erosion modelling, organic contenct calculations, textur comparison and many more for big areas like europe and so on.…

HeidiSQL vs. pgAdmin III – a small speed-test


HeidiSQL, a free database-client, now supports PostgreSQL/PostGIS in the newest nightly builds. Using HeidiSQL with MySQL was always a pleasure and I often had the feeling that the pgAdmin III client of PostgreSQL is slow and not very user-friendly in some points. Because of this I had to test the difference of performance of these two clients. I don’t want to talk about features and handling because this is on the one hand a matter of taste and on the other hand the support of PostgreSQL is very new in HeidiSQL. Instead, I want to compare some simple SQL-queries in…

WhereCamp Berlin 2014

wherecamp berlin logo

Over the last three years WhereCamp Berlin became the biggest event of it’s kind in the world. Around 200 people joined the 2013 session and enjoyed the barcamp styled sessions. For this year the organizing team came up with some refreshing innovations. The whole event will last 3 entire days, 13th (Thu.) till the 15th (Sat.) of November. The first event highlight is the opening key-note by Steve Coast, the founder of OpenStreetMap (OSM). The rest of Thursday is dedicated to a conference track with the headline “Navigation and Local Intelligence”. The set of speakers will be announced soon on the official…

DataSF or how to do open data right

Landing Page DataSFIn 2010 the City and County of San Francisco’s official open data portal was launched. To me it is the ultimate experience for publishing/consuming open data: based on a WordPress system the city distributes data for several categories: Economy and Community City Management and Ethics Transportation Public Safety Health and Social Services Geographic Locations and Boundaries Energy and Environment Housing and Buildings City Infrastructure Culture and Recreation There are 820 datasets available at the moment. Depending on the source of the dataset you will either be able to download the data directly or to display it as table: You can…

Maptime Berlin: what was/what will be

what's all about or notIn the middle of September the first Maptime Berlin took place. I was totally amazed to see so many people sitting there, being interested in mapping, opensource, cartography and software. At least 40 people from different places of the world with different background (sociology, coding, styling, etc.) met at the Supermarkt Berlin (an open place to work together) to share their knowledge and learn new stuff. Here just a few photos: What was done at MaptimeBER After a short introduction from everyone Alsino presented what is Maptime all about: bringing people together, share the joy of creating and consuming maps…