todo

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0003: Improve database
In the init database I would like to use class properties instead of get/read
line: 263,273,and 394
    def create(self)
should be replaced by:
    @property
    def create(self)

It implies that at every point that self.create() is called should be changed to self.create [Note the absence of parenthesis]

line: 298
    def get_posorients(self) 
should be replaced by
    @property
    def posorients(self)

Need to propagate the changes through all the code (see rendering / processing / moving )

Should be done, but maybe I missed something?

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0005: Write test function for raise Error
- for every raise error create a test function, checking that the error is correctly thrown (see moving/test_agent for inspiration)

also should be done. But I did not add any more checks to the moving part, shall I check for additional possible checks?


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0009: can the last dimension (4) of the place-code be greater 1? (should be 1)
    Yes it can, see apcv a [1x1x1x3] array 
0010: what is the image in the database? must it be transformed to a a scene?
    The image is an image, and distance the distance. I added scene as a join image+distance array
    now we do not have a  read_image function in database anymore, is it supposed to be like this?