Beautiful Watershed Polygons in QGIS
As the title sugests I am showing you, how to create beautiful watershed polygons. We will start with some raster files and use a nice GRASS tool for…
Tag: Shapefile
GIS with javascript – tutorial part 1
An article from Anders. Geodata in javascript GeoJSON is the standard way of storing geodata in JSON, javascripts native data format. The wikipedia article has very clear and…
Show your Photos in QGIS and ArcGIS: a small example
Hi guys. Once again I found an interesting question in our Geoscientists group on facebook. One user wanted to show her photos in QGIS as she is it…
Open Data in the UK
The Ordnance Survey is UK’s mapping agency and frequently releases free datasets. Their OpenData policy is quite progressive compared to Germany’s and they’ve recently published some fresh datasets…
GISconnector for Excel
GISconnector for Excel – the beginning of a beautiful friendship between ArcGIS and Excel The GISconnector transforms ArcGIS and Excel into an ingenious overall system: The power of…
A small tool with Python: the shapefile archiver
Let me introduce to you, guys, my first Python tool: “Shapefile Archiver”. Usually, I face lots of problems in managing my shapefiles. My first problem is backing them…
ILWIS GIS – Tutorial I [Introduction]
Today I’ll start with a new series of tutorials for an open Source GIS called “ILWIS GIS“. ILWIS is the short term for “Integrated Land and Water Information System”…
Convert shapefiles to geoJSON via web interface
I just found a nice web interface for converting Shapefiles to geoJSON, the preferred format of vector geodata on the web. And yes, you can also convert back…
OpenSource QGIS + PostGIS installation: “the Windows way”
A short time ago I’ve posted an article on the installation of QGIS in combination with a PostGIS database in the background. As we all know, Windows is…
an enhanced minimal web-map with OpenLayers (part 2)
In the last tutorial we have created a very basic web-map using OpenLayers and one web-mapping service from OpenLayers itself. In fact using OpenLayers seems to me like…
create a web-map: step 2 or DIY
Since we have managed to get a very simple web-map running on our website, it may be a need for some persons to distribute their own shapefiles using…
reading shape files in R
If I would like to adjust a shape file I normally used the way over an excel file or a text file to get a table and to…