Tag Archives: DEM

Comparación de DTM usando Global Mapper 17.0.1

Comparar, primero visualmente y después cuantitativamente dos DTM. Por un lado elegimos una fuente muy usual, SRTM con un DTM derivado de Fotogrametría Stereo.

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”

Creating DEM/DTM

It was 2007 when i finished my master’s degree and wanted to show some videos of procedures. At that moment in time i wanted to find a job -any job- involving GIS and i finally found it dealing with the Geovisualization department within a GIS company… now i happen to deal with DEMs. DTM, etcContinue reading “Creating DEM/DTM”

Data acquisition: How do I know if this river is been well acquired?

I’ve already entered my river but my imagery was in 2D so… was it well acquired?…  First of all, I import my shape (shp) file into Global Mapper (what a great sofware!) and export my vector file as a KML. Import my river.kml file into my brand new Google Earth 5.2 or just double-click itContinue reading “Data acquisition: How do I know if this river is been well acquired?”

GIS+Architectural scenaries. Awesome!

Even from scratch or from dgn/dxf vectorial format’s contour lines you create your own scenario. Then import your model previously created using Sketch-up (this time i used google’s 3d warehouse, thank you Dilbert). Stamp your house using sketch-up sandbox tools. Then fur your scenario as if it was grass… A little of photoshop like clouds andContinue reading “GIS+Architectural scenaries. Awesome!”

Windmills (wind turbines). Geovisualization live!

I will do my best to build a 3d scenario incluiding a few wind generators located very close to Pancorbo Cliff, North of Spain, about 320 km from Madrid. As usual, I started getting a model from 3D warehouse and included inside my google sketch up session… after that it was just placing it inContinue reading “Windmills (wind turbines). Geovisualization live!”

Getting textures from Google Maps – Street View

I this post I am trying to show you how easy is adding a building to your scenario using textures from Google Maps (Street View). You have to know a little bit about Photoshop and layers and these stuff but it’s pretty easy thou… First step, capturing my screen…OMG!!! there’s a tree in the middleContinue reading “Getting textures from Google Maps – Street View”

WMS in Google Earth.

I have thought there is something very interesting maybe you guys have never tried… using your Google Earth sesssion not just for navigating, finding your house or the place you are going on holidays to… If you use the WMS protocol to show your map over your 3D scenario you are going to add aContinue reading “WMS in Google Earth.”

Modeling from scratch. Geovisualization live!

This is what we first have, a low resolution image taken from Google Earth (GE) visualization engine. This area is a small town within La Rioja, NE of Spain, about 300 km from Madrid. The town is called Muro en Cameros. First of all we have to find a better resolution imagen beacouse is absolutelyContinue reading “Modeling from scratch. Geovisualization live!”