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-# OrbitingYeti: a tool to write Nassi-Schneidermann diagrams
+What is this?
+=============
+OrbitingYeti is a tool to write Nassi-Schneidermann diagrams. The name is just a
+randomly generated codename.
-## Coding style
-[https://wiki.qt.io/Qt_Coding_Style]
+What is a NS diagram?
+---------------------
+Nassi-Schneidermann diagrams aka structograms are a way to graphically represent
+a structured program, which in modern terms are programs written with a
+procedural paradigm. Structograms were first introduced in the '70 by Isaac
+Nassi and Ben Schneiderman to replace flowcharts that were becoming
+inadequate as they couldn't represent concepts like recursion.
+
+Paper from 1973:
+[http://www.cs.umd.edu/hcil/members/bshneiderman/nsd/1973.pdf](http://www.cs.umd.edu/hcil/members/bshneiderman/nsd/1973.pdf)
+
+Why?
+----
+Because I wanted to practice C++ and try QT, and also because there aren't many
+(good, non web based, cross platform) tools to draw these kind of diagrams.
+
+Alternatives
+------------
+I don't have much time to work on this so here's an alternative.
+
+Structorizer:
+[http://structorizer.fisch.lu/](http://structorizer.fisch.lu/)
+
+![relevant xkcd](https://imgs.xkcd.com/comics/estimating_time.png)
+
+
+How to build
+============
+
+```
+$ git clone https://github.com/NaoPross/OrbitingYeti.git && cd OrbitingYeti
+$ mkdir -p build && cd build
+$ qmake .. && make
+```
+
+Project
+=======
+TODO
+----
+
+- [x] Ui
+- [ ] Draw diagrams
+- [ ] Save / load diagrams
+- [ ] Export diagrams to
+ * [ ] PDF
+ * [ ] TikZ
+ * [ ] Svg
+ * [ ] PNG
+- [ ] Cross platform
+- [ ] DEB / RPM Package
+
+Coding style
+------------
+I use QtCreator's default coding style.
+
+For more details see:
+[https://wiki.qt.io/Qt\_Coding_Style](https://wiki.qt.io/Qt_Coding_Style)
+
+Git
+---
+If you want to contribute write commits in the imperative (default) form.