Digital Geography

Conference INTERGEO 2015

INTERGEO 2015Last years INTERGEO in Berlin was an interesting experience for a newbie in the world of geodesy like I am. This year I will also attend the INTERGEO in Stuttgart. It will take place from the 15th to the 17th of September. This year’s main points: The spotlight will be on Geospatial 4.0, the digital economy, transformation through digitization, big data, the Internet of Things, digital infrastructures and smart cities.

Heatmap, JavaScript, Openlayers and canvas

OpenWebGIS_heatmap_Title

This article is a continuation of the article “Heatmap and Interpolation: it is easy in OpenWebGIS” about creation of Heatmap and Interpolation with the help of OpenWebGIS interface. We are now describing the process of creating a heatmap, based on any point layer, using JavaScript, OpenLayers 2.x and canvas element (as part of HTML5 technology). Describing the process we will expect that you certainly already have some basic knowledge of programming language JavaScript and can handle OpenLayers library (which is an open source provided under the 2-clause BSD License) JavaScript library for displaying map data in web browsers.). Perhaps the…

Awesome map style

Awesome map style

Are you back from holiday? Maybe you switched from Casale Monferrato, Piedmont and have used the map of Monferrato Landscapes. If you were lucky, you see a new update, I’ve made ten days ago, otherwise I invite you to go to review … but before I tell you how it was created.

Heatmap and Interpolation: it is easy in OpenWebGIS

Figure 4 - Result heatmap

In this article we consider the creation of Heatmap and Interpolation with the help of OpenWebGIS interface. In the next article it is planned to describe its technical implementation using JavaScript, OpenLayers 2.x and canvas element (as part of HTML5 technology). Recently, in an article “Some new (June 2015) features and functions in OpenWebGIS” it has been announced to revise the interpolation module completely. This promise has been kept, and at the moment in OpenWebGIS you can build a heatmap and make interpolation by the method of Inverse Distance Weighting (IDW). It is planned to add (if it is possible)…

CSV to HTML 101 webmap

CSV2HTML

Alright, away from python scripting, I want to share a small tool CSV to HTML 101 with you, guys. I used VB.NET to develop it in order to help non-GIS experts from converting a CSV file to a web page using leaflet.JS library. Honestly, it’s not that complicated tool, but it gives them that push to start a web map especially if they have not dug that deep in web development, javascript and leaflet. However, I’m one of these people, so  please don’t judge my ugly code 😳 The developed tool should meet the following criteria: Simple enough to be used by my grandma.…

GISgirls – where are the women? 4 theses

GISgirls are busy

Typically GIS and geodata nerds are male. Anyhow, 99.9 % of our contacts, freelancer sign ups, comment writers here on the blog are boys. But where are the GIS girls and women? There must be thousands of well educated, very interested hackathon-proven GIS ladies out there. In order to getting in touch with that obviously shy species, I formulated 4 theses about GISgirls. Hopefully many active GIS and geodata girls (and women) will read that and comment in the bottom section. I would be very happy to get your feedback!

Map a whole city with OpenStreetMap

Map a city with OpenStreetMap

One day last month, I came back to OpenStreetMap, to see how the city of Legnano (city of 60k people – near Milan – Italy) was mapped. I knew I did not find much, but hoped it would have been mapped to a large extent. I immediately created an atlas with the online tool mapOSMatic and the result can be found here: Download PDF Atlas of Legnano (as it was) or go to the repository mapOSMatic I always talk about OpenStreetMap on my blog and I invite and teach all kinds of mapping. When I realized the state it was in my city,…

Create Maps Online: A comparison of 6 webmap providers

simplemappr pageWorking with a desktop GIS might be a good choice for geodata-experts, GIS-people in general and everyone who is inside the fields of geosciences. If you don’t want to struggle with a desktop mapping software or you “just want to create a map” for your publication, business data, website or professional service the following online mapping solutions might be the one-stop-shop for your needs.

Short Announcement: Leaflet 1.0

custom-iconsLeaflet is one of a kind in the list of javascript webmapping libraries. It was designed with simplicity, performance and usability in mind. Unfortunately the development seemed to have stopped for a while. This week Vladimir Agafonkin (the creator of Leaflet) released a Beta version of Leaflet 1.0

Spatial Big-Data: 10 stunning services

Butterfly ProjectionIn the last month the German website Spiegel-Online showed some nice examples of big-data combined with geodata. Geodata get’s more important with every GPS-enabled device that is sold, form that will store your address, IP that is monitored, customer in a global market. Let me Introduce you some stunning examples of geo-enabled web applications. Maybe you get some inspiration to power your business with some spatial data too.

Using Jupyter for data analysis

Writing codes in Jupyter

Data analysis in the modern-day computing industry is of great essence as the world tries to understand the data that has been accumulated in many systems across the globe. Extraction of useful information is a task being focused so much in most organizations as this is marking the lifetime for existence in the business world.

Short Announcement: Landsat 8 Data Users Handbook

cirrus example taken from Landsat 8 Data Users Handbook . https://landsat.usgs.gov/documents/Landsat8DataUsersHandbook.pdfLandsat 8 is the successful successor of Landsat 5/ Landsat 7. It was launched on February 11, 2013. Since then we saw a major increase in possibilities of getting access to the data and integrations in software packages. Now the USGS published an in-depth document to support the basic understanding for the Landsat 8 observatory and its science data products.

Attention: QGIS 2.10 is coming!

QGIS 2.10Four months ago QGIS 2.8 was released. The Long Term Release will be suppported for the next 2 years. Besides this LTR version QGIS is updated in a four month cycle. So let’s say hello to QGIS 2.10.