improved README and node definition example

.gitignore

@@ -1 +1,2 @@
-__pycache__/
+__pycache__/
+.idea/

PythonOCC/add_function_box_example.py

@@ -1,42 +1,42 @@
-class BrepPrimAPINodeBase(PythonOCCNodeBase):		#The parent class of the box
-    color = '#aabb44'								#The color atributed to the parent class
+class BrepPrimAPINodeBase(PythonOCCNodeBase):		# The parent class of the box
+    color = '#aabb44'								# The color attributed to the parent class
 
-class Box_Node(BrepPrimAPINodeBase):		#explicit class name(parent class name)
+
+class Box_Node(BrepPrimAPINodeBase):		# explicit class name(parent class name)
     """
     Generates box_________-
     o_Width_______________-
     o_Length______________-					#the text that will appear when your mouse will stay on the node in Ryven
     o_Height______________-					#it indicates what inputs are expected
     """
     init_inputs = [
-        NodeInputBP(dtype=dtypes.Data(size='s')),		#number of inputs ollowing what your function needs
+        NodeInputBP(dtype=dtypes.Data(size='s')),		# number of inputs ollowing what your function needs
         NodeInputBP(dtype=dtypes.Data(size='s')),
         NodeInputBP(dtype=dtypes.Data(size='s')),
     ]
 
     init_outputs = [
-        NodeOutputBP(),						#output of the node
+        NodeOutputBP(),						# output of the node
     ]
 
-    title = 'box'							#the title name of your node
-
+    title = 'box'							# the title name of your node
 
     def apply_op(self, elements: list):
-        width = elements[0]					#your inputs
+        width = elements[0]					# your inputs
         length = elements[1]
         height = elements[2]
-        from OCC.Core.BRepPrimAPI import BRepPrimAPI_MakeBox			#import of the method
+        from OCC.Core.BRepPrimAPI import BRepPrimAPI_MakeBox			# import of the method
         from OCC.Core.gp import gp_Pnt
-        box = BRepPrimAPI_MakeBox(gp_Pnt(), width, length, height).Shape()			#the function to get a result
+        box = BRepPrimAPI_MakeBox(gp_Pnt(), width, length, height).Shape()			# the function to get a result
 
-        return box					#the output of the node
+        return box					# the output of the node
 
 
-BRepPrimAPI_nodes = [			#add the node to the list if its family
+BRepPrimAPI_nodes = [			# add the node to the list if its family
     Box_Node,
 ]
 
 
 export_nodes(
-    *BRepPrimAPI_nodes,			#specified the family nodes to export and to make available in Ryven
-)
+    *BRepPrimAPI_nodes,			# specified the family nodes to export and to make available in Ryven
+)

README.md

@@ -1,33 +1,42 @@
 # Pythonocc-nodes-for-Ryven
-Pythonocc nodes for Ryven
-
+Pythonocc nodes package for Ryven.
 
 Here a way to work on Pythonocc with a node editor, Ryven in that case.
 To get it functional you will have to execute Ryven in an environment where pythonocc is installed.
 
-**Install Ryven**: https://github.com/leon-thomm/Ryven
+### Installation
+
+Prerequisites:
+
+1. Ryven:  https://github.com/leon-thomm/Ryven
+2. Anaconda: https://docs.anaconda.com/anaconda/install/index.html
+3. pythonocc-core: https://anaconda.org/conda-forge/pythonocc-core
+4. pythonocc-utils: https://github.com/tpaviot/pythonocc-utils 
 
-**Install Pythonocc** : https://github.com/tpaviot/pythonocc-core
+### Usage
 
-You just have to import the `Nodes.py` file in Ryven, then all nodes are available under the right-click of the mouse.
+You just have to import the `nodes.py` file in Ryven.
+
+### Examples
+
+Here a small example: https://www.youtube.com/watch?v=lUNYstrfvmg
 
-Here a small example of a definition :
-https://www.youtube.com/watch?v=lUNYstrfvmg
 ![exemple_tutogithub](https://user-images.githubusercontent.com/81742654/131111996-7d586497-ecb0-4908-9da7-b8fd9ba72055.jpg)
 ![exemple_tutogithub_1](https://user-images.githubusercontent.com/81742654/131112006-300cb113-ad9c-406c-9bd4-4ce6629f54ee.jpg)
 
-You can load this project saved in this file : `demo_example.json`
-
-It's just a beginning to explore the possibilities given by matching the two, I've just coded simple functions to see how it works and how it should be to perform complex operations.
+You can load this project from `demo_example.json`
 
 another example:
 ![torus_example](https://user-images.githubusercontent.com/81742654/134700246-54ce5366-cb8f-43c1-acd9-fdd091cd802f.jpg)
 
 
-# Contribute !
-The nodes are of course open for contribution, as there are thousands of functions in OpenCascade and thousands of way to developp properly the nodes!
+It's just a beginning to explore the possibilities given by matching the two, I've just coded simple functions to see how it works and how it should be to perform complex operations.
+
+### Contribute !
 
-The functions yet implemented in the nodes.py file are :
+The nodes are of course open for contribution, as there are thousands of functions in OpenCascade and thousands of ways to develop properly the nodes!
+
+The functions currently implemented are:
 
 `Gp_nodes = Pnt_Node, DeconstructPnt_Node, PointZero_Node,Dir_Node, Vec_Node, DX_Node, DY_Node, DZ_Node,Ax2_Node, Pln_Node, Trsf_Node, Move2pts_Node, MidPoint_Node,`
 
@@ -51,7 +60,6 @@ The functions yet implemented in the nodes.py file are :
 
 `DataExchange_nodes = ExportStep_Node, ImportStep_Node, ExportStl_Node, ImportStl_Node,`
 
-Each "nodes" family is a class with a color attributed. Node's name are nearly the same than in Pythonocc
-
-To add a function from Pythonocc you have to generate a code as in the `add_function_box_example.py` file
+Each "nodes" family is a class with a color attributed. Node names are correspond to the functions from Pythonocc.
 
+To add a function from Pythonocc you have to generate a code as shown in `add_function_box_example.py`.