Пример #1
0
 def scilab_command(*args, **kwargs):
     """ Scilab command """
     kwargs['nout'] = get_nout()
     if name == 'getd':
         kwargs['nout'] = 0
     kwargs['verbose'] = kwargs.get('verbose', False)
     return self._call(name, *args, **kwargs)
Пример #2
0
 def scilab_command(*args, **kwargs):
     """ Scilab command """
     kwargs['nout'] = get_nout()
     if name == 'getd':
         kwargs['nout'] = 0
     kwargs['verbose'] = kwargs.get('verbose', False)
     return self._call(name, *args, **kwargs)
Пример #3
0
    def _call(self, func, *inputs, **kwargs):
        """
        Scilab2Py Parameters
        ----------
        inputs : array_like
            Variables to pass to the function.
        nout : int, optional
            Number of output arguments.
            This is set automatically based on the number of
            return values requested.
            You can override this behavior by passing a
            different value.
        verbose : bool, optional
             Log Scilab output at info level.
                plot_dir: str, optional
            If specificed, save the session's plot figures to the plot
            directory instead of displaying the plot window.
        plot_name : str, optional
            Saved plots will start with `plot_name` and
            end with "_%%.xxx' where %% is the plot number and
            xxx is the `plot_format`.
        plot_format: str, optional
            The format in which to save the plot (PNG by default).
        kwargs : dictionary, optional
            Key - value pairs to be passed as prop - value inputs to the
            function.  The values must be strings or numbers.

        Returns
        -------
        out : value
            Value returned by the function.

        Raises
        ------
        Scilab2PyError
            If the function call is unsucessful.
        """
        nout = kwargs.pop('nout', get_nout())
        argout_list = ['ans']
        if '=' in func:
            nout = 0

        # these three lines will form the commands sent to Scilab
        # load("-v6", "infile", "invar1", ...)
        # [a, b, c] = foo(A, B, C)
        # save("-v6", "outfile", "outvar1", ...)
        load_line = call_line = save_line = ''

        prop_vals = []
        eval_kwargs = {}
        for (key, value) in kwargs.items():
            if key in ['verbose', 'timeout'] or key.startswith('plot_'):
                eval_kwargs[key] = value
                continue
            if isinstance(value, (str, unicode, int, float)):
                prop_vals.append('"%s", %s' % (key, repr(value)))
            else:
                msg = 'Keyword arguments must be a string or number: '
                msg += '%s = %s' % (key, value)
                raise Scilab2PyError(msg)
        prop_vals = ', '.join(prop_vals)

        if nout:
            # create a dummy list of var names ("a", "b", "c", ...)
            # use ascii char codes so we can increment
            argout_list, save_line = self._reader.setup(nout)
            call_line = '[{0}] = '.format(', '.join(argout_list))

        call_line += func + '('

        if inputs:
            argin_list, load_line = self._writer.create_file(inputs)
            call_line += ', '.join(argin_list)

        if prop_vals:
            if inputs:
                call_line += ', '
            call_line += prop_vals

        call_line += ')'

        # create the command and execute in octave
        cmd = [load_line, call_line, save_line]
        data = self.eval(cmd, **eval_kwargs)

        if isinstance(data, dict) and not isinstance(data, Struct):
            data = [data.get(v, None) for v in argout_list]
            if len(data) == 1 and data[0] is None:
                data = None

        return data
Пример #4
0
    def _call(self, func, *inputs, **kwargs):
        """
        Scilab2Py Parameters
        ----------
        inputs : array_like
            Variables to pass to the function.
        nout : int, optional
            Number of output arguments.
            This is set automatically based on the number of
            return values requested.
            You can override this behavior by passing a
            different value.
        verbose : bool, optional
             Log Scilab output at info level.
                plot_dir: str, optional
            If specificed, save the session's plot figures to the plot
            directory instead of displaying the plot window.
        plot_name : str, optional
            Saved plots will start with `plot_name` and
            end with "_%%.xxx' where %% is the plot number and
            xxx is the `plot_format`.
        plot_format: str, optional
            The format in which to save the plot (PNG by default).
        kwargs : dictionary, optional
            Key - value pairs to be passed as prop - value inputs to the
            function.  The values must be strings or numbers.

        Returns
        -------
        out : value
            Value returned by the function.

        Raises
        ------
        Scilab2PyError
            If the function call is unsucessful.

        Notes
        -----
        Integer type arguments will be converted to floating point
        unless `convert_to_float=False`.
        """
        nout = kwargs.pop('nout', get_nout())

        argout_list = ['ans']
        if '=' in func:
            nout = 0

        # these three lines will form the commands sent to Scilab
        # load("-v6", "infile", "invar1", ...)
        # [a, b, c] = foo(A, B, C)
        # save("-v6", "outfile", "outvar1", ...)
        load_line = call_line = save_line = ''

        prop_vals = []
        eval_kwargs = {}
        for (key, value) in kwargs.items():
            if key in ['verbose', 'timeout'] or key.startswith('plot_'):
                eval_kwargs[key] = value
                continue
            if isinstance(value, (str, unicode, int, float)):
                prop_vals.append('"%s", %s' % (key, repr(value)))
            else:
                msg = 'Keyword arguments must be a string or number: '
                msg += '%s = %s' % (key, value)
                raise Scilab2PyError(msg)
        prop_vals = ', '.join(prop_vals)

        if nout:
            # create a dummy list of var names ("a", "b", "c", ...)
            # use ascii char codes so we can increment
            argout_list, save_line = self._reader.setup(nout)
            call_line = '[{0}] = '.format(', '.join(argout_list))

        call_line += func + '('

        if inputs:
            argin_list, load_line = self._writer.create_file(inputs)
            call_line += ', '.join(argin_list)

        if prop_vals:
            if inputs:
                call_line += ', '
            call_line += prop_vals

        call_line += ');'

        # create the command and execute in octave
        cmd = [load_line, call_line, save_line]
        data = self.eval(cmd, **eval_kwargs)

        if isinstance(data, dict) and not isinstance(data, Struct):
            data = [data.get(v, None) for v in argout_list]
            if len(data) == 1 and data[0] is None:
                data = None

        return data