Miguel

/Miguel AdAn

About Miguel AdAn

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So far Miguel AdAn has created 17 blog entries.
28 07, 2015

Using Topology to fix errors on a map in ArcGIS

By | July 28th, 2015|BLOG|0 Comments

This geodatabase feature allow us analyse vector networks and find out if there are errors on them to be able to fix them afterwards. With this we can, for example, carry out a more exact analysis or create routes without finding an error. What this feature does is find errors in the layer (or group of layers) [...]

7 07, 2015

Tips for a beautiful presentation in ArcGIS. nº1 Map Relief

By | July 7th, 2015|BLOG|0 Comments

Once a project is done, it is important to create a beautiful presentation. Even though the goals have been met, it is a requirement to know how to present the results and do so in a visual way. Next, we are going to show you a trick to add relief to the image. […]

2 07, 2015

Euclidean distance in ArcGIS

By | July 2nd, 2015|BLOG|0 Comments

A common tool, mostly used in multicriteria analysis, is the construction of Euclidean distances. It consists in generating a raster from a vector layer or another raster that indicates the existing distances from that figure to the rest of the field in a visual and colourful way. Or said in a different way, it indicates the [...]

29 06, 2015

Calculating sampling areas and perimeters using ArcGIS

By | June 29th, 2015|BLOG|0 Comments

A common problem during environmental studies is calculating study areas or perimeters. If you are working with areas that are small enough so that its measure doesn’t appear anywhere, its size has to be measured manually. ArcGIS suggests a method to calculate them that depends on your precision skills. […]

19 06, 2015

Hillshading Digital Terrain Models (DTM) in ArcGIS

By | June 19th, 2015|BLOG|0 Comments

When we download a DTM raster from a web server, we obtain an image that looks like this: At first sight it is hard to appreciate the details of the image not knowing which part falls inside the map. In order to make its esthetical look seem better, we will apply a hillshade effect to [...]

10 06, 2015

Generating a fishnet grid of a species abundance and distribution with ArcGIS

By | June 10th, 2015|BLOG|0 Comments

Many environmental projects need the design of presence or abundance maps in a fishnet (grid net). Following some simple steps we can represent in a grid the number of sightings of a species inside an area with colors that will vary depending on its abundance. […]

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