pyGLV.GL.VertexArray

VertexArray class

The VertexArray Compoment class is the dedicated to a specific type of data container Component that of assembling, using and destroying OpenGL API vertex array and buffer objects

Based on the Composite and Iterator design patterns:

• https://refactoring.guru/design-patterns/composite

• https://github.com/faif/python-patterns/blob/master/patterns/structural/composite.py

• https://refactoring.guru/design-patterns/iterator

• https://github.com/faif/python-patterns/blob/master/patterns/behavioral/iterator.py

class pyGLV.GL.VertexArray.VertexArray(name=None, type=None, id=None, attributes=None, index=None, primitive=GL_TRIANGLES, usage=GL_STATIC_DRAW)

A concrete VertexArray class

update()

method to be subclassed for debuging purposes only, in case we need some behavioral or logic computation within te Component. This violates the ECS architecture and should be avoided.

accept(system: pyECSS.System)

Accepts a class object to operate on the Component, based on the Visitor pattern.

Parameters

system ([System]) – [a System object]

init()

Extra method for extra initialisation pf VertexArray Vertex array from attributes and optional index array. Vertex Attributes should be list of arrays with one row per vertex.