Merge branch 'master' of https://github.com/Ifsttar/I-Simpa

Author: JimmyFarcy

Diff for: Docs/Building.md

@@ -1,4 +1,4 @@
-## Building Rainmeter
+## Building I-Simpa
 
 ### Get the source code
 

Diff for: README.md

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-I-Simpa
-=======
+#I-Simpa 
+##I-Simpa presentation
 
-Framework for digital simulation of acoustic propagation in 3D environments
+I-Simpa is a graphical user unterface (GUI) developed to host three-dimensional numerical codes for the modeling of sound propagation
+in complex geometrical domains. Although I-Simpa is well adapted for energetic models (ray-tracing, sound-particle tracing, theory of
+reverberation…), it can be extend to use ondulatory approaches.
+I-Simpa alone is not a calculation software, but is equivalent to a pre and post-processor for acoustic codes. One or more numerical
+codes must be added in order to obtain a fully functional system. At the present time, I-Simpa is delivered with two codes
+(TCR and SPPS, see information here).
+Classical applications are room and building acoustics, environmental noise and industrial noise, but it can be easily extend to other
+applications concerning the sound propagation in 3D environments (interior of vehicle, sound in cavities…).
+
+The main concepts of I-Simpa are:
+
+* a functional GUI: elements and components are organized in tree structures, to easily access to all information, parameters and
+properties. Many features are proposed for helping users…
+* an ‘open’ system: all information and data are organized in spreadsheets that can be displayed, exported, copied…
+* an ‘open’ software: each user can integrate its own numerical propagation code, develop its own functionalities within the interface
+for its own applications… All have been done in order you can extend I-Simpa easily. 
+
+
+I-Simpa has been initially developed as a research tool (i.e. for research laboratories), but can also be a very efficient tool for a
+professional or commercial use.
+
+For build instructions, see [this](https://github.com/Ifsttar/I-Simpa/blob/master/Docs/Building.md).