Just fixed a few spell-os in the tutorial.

modules/doc/intro-01.rst

@@ -10,11 +10,11 @@ The code to load and save structures is not directly part of the mol module, but
 :mod:`~ost.io` module. We will be using functions of this module to load 
 structures. 
 
-One of the most commonly used file formats for macromolecular structures are PDB 
-(Brookhaven Protein Databank) files. The official name for  molecules stored in 
-a PDB file is an *entity* and we decided to follow this convention in 
-OpenStructure. You will hear this word all the time, but you can replace the 
-word entity with molecule (or most of the time even protein) in your head.
+One of the most commonly used file formats for macromolecular structures are 
+PDB (Brookhaven Protein Data Bank) files. The official name for  molecules 
+stored in a PDB file is an *entity* and we decided to follow this convention 
+in OpenStructure. You will hear this word all the time, but you can replace 
+the word entity with molecule (or most of the time even protein) in your head.
 
 
 To load a PDB file, simply type
@@ -95,7 +95,7 @@ of the entity. The graphical representation is completely separate from the :cla
 
 Now you will see the fragment in the 3D window.
 
-Use the mouse to rotate, zoom in an shift the camera. Double clicking on an 
+Use the mouse to rotate, zoom in and shift the camera. Double clicking on an 
 atom will center the camera on that atom. If you want to learn more about the 
 :mod:`~ost.gfx` module, you are encouraged to read :doc:`the gfx 
 intro<intro-03>` and the :mod:`gfx documentation<ost.gfx`.
@@ -106,7 +106,7 @@ Introduction to Views
 Often during processing and visualisation of data, only parts of a protein 
 structure are of interest. This realisation has had a major impact on the design 
 of OpenStructure and is tied very deeply into the core of the framework. 
-Subparts of structure are modeled as so-called :class:`EntityViews 
+Subparts of structure are modelled as so-called :class:`EntityViews 
 <ost.mol.EntityView>`. You can think of them as a selection of chains, residues, 
 atoms and bonds of an entity. A views has almost the same interface as the 
 underlying entity, making it very easy to mix entity views with handles in 

modules/doc/intro-02.rst

@@ -7,7 +7,7 @@ For the course of this tutorial, we assume that you have :ref:`DNG up and runnin
 Loading Images and Density Maps
 --------------------------------------------------------------------------------
 
-Openstructure features a :mod:`~ost.img` module that is dedicated to the 
+OpenStructure features a :mod:`~ost.img` module that is dedicated to the 
 manipulation of images/density maps. The images or density maps can either be 
 one-, two- or three-dimensional. The most common formats used in X-ray and 
 electron  crystallography and atomic force microscope are supported in addition 
@@ -20,7 +20,7 @@ To load a density map, type
 
 .. code-block:: python
 
-   map=io.LoadImage('/path/to/examples/map/1ppt.map')
+   map=io.LoadImage('/path/to/examples/code_fragments/map/1ppt.map')
 
 This will load the fragment density map from the specified file 'fragment.map' 
 and store the result in map. 
@@ -31,7 +31,7 @@ Now let's inspect what we just loaded:
 
   print map.GetPixelSampling(), map.GetSize()
     
-We can see that the sampling is set to 1.0 Angstroems in all three dimensions. The loaded map is an instance of :class:`~ost.img.ImageHandle`, a class to represent images in 1, 2 and 3 dimensions.
+We can see that the sampling is set to 1.0 Angstroms in all three dimensions. The loaded map is an instance of :class:`~ost.img.ImageHandle`, a class to represent images in 1, 2 and 3 dimensions.
 
 Manipulating Images and Density Maps
 --------------------------------------------------------------------------------
@@ -47,13 +47,13 @@ first have to import the :mod:`img.alg <ost.img.alg>` module.
 
 The :mod:`img.alg <ost.img.alg>` module provides a wide range of algorithm to 
 manipulate image data. Here for example we use a LowPassFilter to restrict the 
-resolution of the density map to frequencies lower than a treshold.
+resolution of the density map to frequencies lower than a threshold.
 
 .. code-block:: python
 
    map_filtered=map.Apply(alg.LowPassFilter(3.0))
 
-The filtered map is stored in a new variable called `fragment_map_filtered`. A complete list of algorithms is available on the  :doc:`img/alg/alg` page.
+The filtered map is stored in a new variable called `map_filtered`. A complete list of algorithms is available on the  :doc:`img/alg/alg` page.
 
 
 Displaying Images and Density Maps

modules/doc/intro-03.rst

@@ -142,7 +142,7 @@ molecule. This storage scheme has one drawback. Consider the following code:
   for i in range(100): 
     obj.SetColor(gfx.RED)
 
-While the code obviously achieves the desired effect, it is far for optimal 
+While the code obviously achieves the desired effect, it is far from optimal 
 because all of the 100 color operations are applied every time the graphical 
 entity needs an update. When you see a slow down in rendering after playing 
 around with the coloring operations, consider calling 
@@ -176,4 +176,4 @@ elements. The main color affects the top and bottom of extended  and the outside
 of helical elements. The detail color is used for the inner side of helices and 
 the rim of extended elements. This color is changed with 
 :meth:`Entity.SetDetailColor`.
- 
\ No newline at end of file
+ 

modules/doc/intro.rst

@@ -36,7 +36,7 @@ that comes with OpenStructure. Depending on your platform, the examples are
 located at a different location:
 
  * on *MacOS X* the files are located inside the application bundle. The file 
-   browser fill automatically point to the examples.
+   browser will automatically point to the examples.
  * on *Linux* and *Windows* PREFIX/share/openstructure/examples, where PREFIX is 
    the path to the directory containing OpenStructure.