Para la multitud de personas a las que como a mí, les ha sorprendido esta infrastructura en frente de sus casas hay posibilidad de encontrarse en el mismo metro cuadrado a alguien corriendo, alguien andando, una pareja con un carrito de niños, unos amigos en patines, alguna persona en bici… unos más rápido y unos más lento, todos hemos de convivir en un trazado de unos 7,5km de largo y no más unos metros de ancho, con lo que unas mínimas normas de circulación se imponen.
Author Archives: Alberto
Freelancing is good?. Well, kind of!
why is good being a freelance?
Taxing the sun?. Yes, in Spain this seems to be possible.
Absolutely ashamed by my government’s insane policies on this regards, Spain is now (…) attempting to scale back the use of solar panels – the use of which they have encouraged and subsidized over the last decade – by imposing a tax on those who use the panels. The intention is clearly to scare taxpayersContinue reading “Taxing the sun?. Yes, in Spain this seems to be possible.”
DTM validation using Google Earth (and RMSE extraction)
Hi guys, Surfing the internet is great when you need to figure out something. I needed to validate some DTM from unknown sources against an also unknown source (but at least a kind of reliable one, Google Earth). All we need is Google Earth TCX converter ARcGIS Excel This is the procedure i have followed:Continue reading “DTM validation using Google Earth (and RMSE extraction)”
Pearson correlation and GIS
Do these two variables have a correlation?. To answer this important question first of all we have to know that only if it’s a linear relationship and there are no outliers we can take advantage of Mr Pearson’s correlation statiscal tool. If i love chocolate, does this mean i have tendency of being chuby? orContinue reading “Pearson correlation and GIS”
Comparing France Meteo and Spain Meteo from the visualization point of view
After living in France for four years i have to tell i am always aware of Meteo information on TV (well, i live in Brittany, i guess this makes sense!). It was the same in Spain or anywhere else in the world where i had lived and the reason why is i have always lovedContinue reading “Comparing France Meteo and Spain Meteo from the visualization point of view”
Remote Sensing, Photogrammetry, Lidar and Landuse IGN Spain
A few more lines for leting you know again that i passed this other course just now in Instituto Geográfico of Spain (IGN). Remote Sensing, Photogrammetry, Lidar and Landuse, a comprehensive 40h update on relevant information i need tu use on a daily basis. This ‘update’ helps me to better understand what i am working with andContinue reading “Remote Sensing, Photogrammetry, Lidar and Landuse IGN Spain”
Advanced Thematic Cartography IGN Spain
A few lines for leting you know i passed this course last year 2013 in Instituto Geográfico of Spain (IGN). Spatial analysis, Spatial stats, proper simbolization, data mining and geovisualization. A very interesting 40h online course that helps me on a daily basis to be able to show geodata in a more professional way. BecauseContinue reading “Advanced Thematic Cartography IGN Spain”
HTML High resolution DTM visualization using QGIS
This QGIS Plugin, Qgis2threejs, exports terrain data, map canvas image and vector data to your web browser!! All you have to do is opening the DTM in QGIS (2.4.0 Chugiak), go to plugins library and install Qgis2threejs. Once its installed you will see this icon on screen and you will need to clic on it. ThenContinue reading “HTML High resolution DTM visualization using QGIS”
DTM from SRTM? Let’s compare sources using RMSE (Root Mean Square Error) and a gaussian kernell density map
I guess we all can make a DTM out of many sources but SRTM is one of the most common ones, right?. Then let’s learn from this very simple approach how close we are from the SRTM raw data. Selecting a not very big representative area to be able to handle it, exporting raster to polygon (fromContinue reading “DTM from SRTM? Let’s compare sources using RMSE (Root Mean Square Error) and a gaussian kernell density map”
Geovisualization.net 