Starting with Geoserver
We have discussed how to start with Postgresql / Postgis. Once you have your database, the next most common need is to upload online the data. Of course, there are many technical possibilities to do this.…
Read MoreMonth: October 2018
ArcGis: speed up rasters
Since version 10.2, you have an option in ArcMap that significantly speeds up the display of rasters. This option is available in the Image Analysis window. To speed up the display of rasters in ArcMap (10.2…
Read MoreCutting rasters using ArcGis How to cut rasters in ArcMap?
You could be surprised but, actually, there are two ways to cut rasters in ArcMap. The classical technique is the “raster clip” (“raster cutting”) tool in ArcToolbox. This has been the only procedure for a long…
Read MoreStart with PostgrSQL / Postgis -Introduction to pgAdmin3
Following a previous article ( Start with Postgres / Postgis ), we will discuss an introduction to the administration of Postgres / postgis databases, the loading of a shapefile and the connection and loading of the…
Read MoreGIS and decision support (1): classifying with fuzzy numbers
Decision processes are based on information from very diverse source and type. This information is used by the decision-makers to perform choices, i.e. to retain a certain number of entities and to exclude others. Let’s…
Read MoreGIS and decision support (2): the crossing of two fuzzy criteria
Let’s reconsider our example regarding the towns ranking for the Finistère region according to the following two criteria: population and area. How to rank entities according to a single criterion To establish the fuzzy number allowing…
Read MoreGIS and decision support (3): a tool to create fuzzy criteria with ArcMap
In the two previous articles ( GIS and decision support (2): the crossing of two fuzzy criteria , and GIS and decision support (1): ranking with fuzzy numbers), we have discussed examples for using fuzzy logic…
Read MoreGIS and decision support (4): a tool for aggregating fuzzy criteria with ArcMap
In this article we will discuss how to cross two fuzzy attributes, with a command that we put at your disposal. The “Flexible Aggregation” command allows the aggregation of two fuzzy criteria. The interface offers three…
Read MoreGIS and decision support (7): a tool to create fuzzy qualitative criteria with ArcMap
In a previous article, GIS and Decision Support (3): A tool for creating fuzzy criteria with ArcMap , we have seen a tool for transforming numeric attribute into a soft attribute (fuzzy number). In this article…
Read MoreGIS and Decision Support (6): Theoretical Fundamentals (Part 2)
This article is the direct continuation of the: GIS and decision support (5): Theoretical Fundamentals (Part 1) Aggregation example. We consider the aggregation of the criterion “bathymetry” as it is shown in Figure 2, and…
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