TraceWin.py

        if self.version >= 6 and partran:
            coordinates += ["min_pos_moy", "max_pos_moy"]
            coordinate_units += ["m", "m"]

        for val, unit in zip(arrays, array_units):
            data_set = group.create_dataset(val, (length,), dtype="f")
            data_set[...] = getattr(self, val)
            if unit:
                data_set.attrs["unit"] = unit

        for val, unit in zip(coordinates, coordinate_units):
            data_set = group.create_dataset(val, (length, 7), dtype="f")
            data_set[...] = getattr(self, val)
            if unit:
                data_set.attrs["unit"] = unit

        if self.version >= 7 and partran:
            # 3 numbers per location..
            emit_data = ["rms_emit", "rms_emit2"]
            emit_units = ["m*rad", "m*m*rad*rad"]
            for val, unit in zip(emit_data, emit_units):
                data_set = group.create_dataset(val, (length, 3), dtype="f")
                data_set[...] = getattr(self, val)
                if unit:
                    data_set.attrs["unit"] = unit
        if partran:
            # 1 numbers per location and per run..
            data = ["lost", "powlost"]
            units = ["", "W"]
            for val, unit in zip(data, units):
                data_set = group.create_dataset(val, (length, self.Nrun), dtype="f")
                data_set[...] = getattr(self, val)
                if unit:
                    data_set.attrs["unit"] = unit

        fout.close()


class remote_data_merger:
    def __init__(self, base="."):
        self._base = base
        self._files = []

    def add_file(self, filepath):
        import os

        if os.path.exists(filepath):
            fname = filepath
        else:
            fullpath = os.path.join(self._base, filepath)
            if os.path.exists(fullpath):
                fname = fullpath
            else:
                raise ValueError("Could not find file " + filepath)
        if fname not in self._files:
            self._files.append(fname)

    def generate_partran_out(self, filename=None):
        """
        Creates a string to be written to file
        each line is a list.

        If filename is given, writes directly to output file.

        """

        import numpy as np

        h1 = []
        h2 = []

        d1 = []
        d2 = []
        d3 = []

        if self._files:
            for f in self._files:
                string = open(f, "r").read()
                split = string.split("$$$")
                if split[9] != "Data_Error":
                    raise ValueError("Magic problem, please complain to Yngve")

                thisdata = split[10].strip().split("\n")

                if not h1:
                    h1 = [thisdata[0] + " (std in paranthesis)"]
                    h2 = thisdata[2:10]
                d1.append(thisdata[1].split())
                d2.append(thisdata[10])
                d3.append(thisdata[11])

            # fix d1:
            for i in range(len(d1)):
                for j in range(len(d1[0])):
                    d1[i][j] = float(d1[i][j])
            d1 = np.array(d1)
            means = d1.mean(axis=0)
            stds = d1.std(axis=0)
            d1 = []
            for i in range(len(stds)):
                if stds[i] / means[i] < 1e-10:
                    stds[i] = 0.0
            for i in range(len(stds)):
                # some small std are removed..
                if stds[i] / means[i] > 1e-8:
                    d1.append("%f(%f)" % (means[i], stds[i]))
                else:  # error is 0
                    d1.append(str(means[i]))
            d1 = [" ".join(d1)]

            # create data:
            data = h1 + d1 + h2 + d2 + d3

            if filename:
                open(filename, "w").write("\n".join(data))

            return data


class envDiag:
    """
    Read ENV_diag1.dat file

    This contains e.g. the absolute phase at each diag

    For now we do not read in all info from the file,
    so feel free to request or add anything else you would like.

    """

    def __init__(self, filename):
        self.filename = filename
        self.elements = {}
        # Needed to get an ordered dictionary:
        self._elementList = []
        self._readAsciiFile()
        self.units = {}
        self._setUnits()

    def _readAsciiFile(self):
        """
        Read the file
        """
        current = None
        for line in open(self.filename, "r"):
            lsp = line.split()
            if lsp[0] == "DIAG":
                self.elements[int(lsp[2])] = {}
                self._elementList.append(int(lsp[2]))
                current = self.elements[int(lsp[2])]
                current["loc"] = float(lsp[4])
            elif lsp[0] == "Ibeam:":
                current["current"] = float(lsp[1])
            elif lsp[0] == "Positions":
                current["phase"] = float(lsp[5])
                current["energy"] = float(lsp[6])
            elif lsp[0] == "RMS":
                current["x_rms"] = float(lsp[4]) * 0.01
                current["y_rms"] = float(lsp[5]) * 0.01
                current["phase_rms"] = float(lsp[6])
                current["energy_rms"] = float(lsp[7])
            elif lsp[0] == "Emittances":
                current["emit_x"] = float(lsp[3])
                current["emit_y"] = float(lsp[4])
                current["emit_z"] = float(lsp[5])
            elif lsp[0] == "Emittances99":
                current["emit99_x"] = float(lsp[3])
                current["emit99_y"] = float(lsp[4])
                current["emit99_z"] = float(lsp[5])
            elif lsp[0] == "Twiss":
                if lsp[1] == "Alpha" and lsp[3] == "(XXp,":
                    current["alpha_x"] = float(lsp[6])
                    current["alpha_y"] = float(lsp[7])
                elif lsp[1] == "Alpha" and lsp[3] == "(ZDp/p)":
                    current["alpha_z"] = float(lsp[5])
                elif lsp[1] == "Beta":
                    current["beta_x"] = float(lsp[5])
                    current["beta_y"] = float(lsp[6])
                    current["beta_z"] = float(lsp[7])

    def _setUnits(self):
        """
        Set the units for each element in the element dictionary
        (empty string for all undefined)
        """
        for key in ["loc", "x_rms", "y_rms"]:
            self.units[key] = "m"
        for key in ["emit_x", "emit_y", "emit_z", "emit99_x", "emit99_y", "emit99_z"]:
            self.units[key] = "Pi.mm.mrad"
        for key in ["current"]:
            self.units[key] = "mA"
        for key in ["energy", "energy_rms"]:
            self.units[key] = "MeV"
        for key in ["phase", "phase_rms"]:
            self.units[key] = "deg"
        for key in ["beta_x", "beta_y", "beta_z"]:
            self.units[key] = "mm/mrad"

        for element in self.elements:
            for key in self.elements[element]:
                if key not in self.units:
                    self.units[key] = ""

    def printTable(self):
        """
        Make a pretty print of the content
        """
        first = True
        rjust = 12
        for ekey in self._elementList:
            element = self.elements[ekey]

            # Print header if this is the first element..
            if first:
                keys = [key for key in element]
                print("#", end=" ")
                print("NUM".rjust(rjust), end=" ")
                for key in keys:
                    print(key.rjust(rjust), end=" ")
                print()
                print("#", end=" ")
                print("".rjust(rjust), end=" ")
                for key in keys:
                    print(self.units[key].rjust(rjust), end=" ")
                print()
                first = False

            print("  " + str(ekey).rjust(rjust), end=" ")
            for key in keys:
                num = element[key]
                if isinstance(num, float):
                    strnum = "{:.5e}".format(num)
                else:
                    strnum = str(element[key])
                print(strnum.rjust(rjust), end=" ")
            print()

    def getElement(self, elementId):
        """
        Returns the element dictionary for the given ID
        """
        return self.elements[elementId]

    def getElementAtLoc(self, location):
        """
        Returns a list of elements at the location requested
        """
        ret = []
        for key in self.elements:
            if abs(self.elements[key]["loc"] - location) < 1e-6:
                ret.append(self.elements[key])
        return ret

    def getParameterFromAll(self, parameter):
        """
        Returns a list containing the given parameter from all DIAGS,
        ordered by the location of the DIAGs
        """
        if parameter == "NUM":
            return self._elementList[:]
        ret = []
        for key in self._elementList:
            ret.append(self.elements[key][parameter])

        return ret


class envelope:
    """
    Read an envelope file
    Create one by saving envelope data plot
    to ascii

    Example::
        from ess import TraceWin
        from matplotlib import pyplot as plt
        data = TraceWin.envelope('envelope.txt')
        print(data.keys())
        for key in data:
            print(key, data.unit(key))
            if 'rms_' in key:
                plt.plot(data['position'], data[key]/max(data[key]), label=f"{key} [{data.unit(key)}]")
        plt.legend()
        plt.xlabel(f"Position [{data.unit('position')}]")
        plt.show()

    """

    def __init__(self, filename):
        self.filename = filename
        self.headers = ()
        self._units = []
        self._raw_data = None
        self._readAsciiFile()

    def _readAsciiFile(self):

        import numpy

        self._raw_data = numpy.loadtxt(self.filename, skiprows=1)
        with open(self.filename, "r") as fin:
            header = fin.readline()
            print(header)
            headers = []
            for h in header.split():
                if "centroid" == h:
                    continue
                elif "(" not in h:
                    headers.append(h)
                elif "unit(" in h:
                    self._units = tuple(h.split("(")[1][:-1].split(","))
                else:
                    base, main = h.split("(")
                    if base:
                        for k in main[:-1].split(","):
                            headers.append(f"{base}_{k}")
                    else:
                        headers.extend(main[:-1].split(","))
            self.headers = tuple(headers)

    def __iter__(self):
        return iter(self.keys())

    def keys(self):
        return self.headers

    def where(self, column):
        if column not in self.keys():
            raise ValueError(f"Wrong column name {column}")
        for i in range(len(self.keys())):
            if self.keys()[i] == column:
                return i

    def __getitem__(self, column):
        """
        Get the data of the column specified

        """
        index = self.where(column)
        return self._raw_data[:, index]

    def unit(self, column):
        """
        TODO gam-1
        """
        if "'" in column:
            return self._units[1]
        elif "/" in column:
            return ""
        elif column in ["time"]:
            return self._units[3]
        elif "phase" in column:
            return self._units[2]
        elif "energy" in column:
            return self._units[4]
        elif "gam-1" == column:
            return "GeV"
        return self._units[0]


class partran(dict):
    """
    Read partran1.out files..

    This class can also read tracewin.out (same format)
    """

    def __init__(self, filename):
        self.filename = filename
        self._readAsciiFile()

    def _readAsciiFile(self):

        import numpy

        stream = open(self.filename, "r")
        for i in range(10):
            line = stream.readline()
            if line.strip()[0] == "#":
                break
        self.columns = ["NUM"] + line.split()[1:]
        self.data = numpy.loadtxt(stream)

        self._dict = {}
        for i in range(len(self.columns)):
            self[self.columns[i]] = self.data[:, i]


class field_map:
    """
    Class to read in the field map structures

    WARNING: Work in progress!!
    """

    def __init__(self, filename):
        self._filename = filename
        self._load_data(filename)

    def _load_data(self, filename):
        import os
        import numpy

        if not os.path.isfile(filename):
            raise ValueError("Cannot find file {}".format(filename))
        fin = open(filename, "r")
        line = fin.readline().split()
        self.header = []
        self.start = []
        self.end = []
        numindexes = []
        while len(line) > 1:
            [self.header.append(float(i)) for i in line]
            numindexes.append(int(line[0]) + 1)
            if len(line) == 2:
                self.start.append(0.0)
                self.end.append(float(line[1]))
            else:
                self.start.append(float(line[1]))
                self.end.append(float(line[2]))
            line = fin.readline().split()

        if len(self.start) == 1:
            self.z = numpy.mgrid[self.start[0] : self.end[0] : numindexes[0] * 1j]
            print(self.z)
        elif len(self.start) == 2:
            self.z, self.x = numpy.mgrid[
                self.start[0] : self.end[0] : numindexes[0] * 1j, self.start[1] : self.end[1] : numindexes[1] * 1j,
            ]
        elif len(self.start) == 3:
            self.z, self.x, self.y = numpy.mgrid[
                self.start[0] : self.end[0] : numindexes[0] * 1j,
                self.start[1] : self.end[1] : numindexes[1] * 1j,
                self.start[2] : self.end[2] : numindexes[2] * 1j,
            ]

        self.norm = float(line[0])
        self.header.append(self.norm)
        self.map = numpy.loadtxt(fin).reshape(numindexes)

    def get_flat_fieldmap(self):
        totmapshape = 1
        for i in self.map.shape:
            totmapshape *= i
        return self.map.reshape(totmapshape)

    def interpolate(self, npoints: tuple, method="cubic"):
        """
        Interpolate the map into a new mesh
        Each value should be an integer with the number of mesh points in each dimension
        intervals should be tuple-like with same number of elements
        as the map dimension, e.g. [0.8,0.8] for 2D
        Can also be a float if you want same interpolation factor in all planes

        method can be 'linear', 'nearest' or 'cubic'
        """
        import numpy
        from scipy.interpolate import griddata

        values = self.map.flatten()

        if len(self.start) == 1:
            points = self.z[:]
            self.z = numpy.mgrid[self.start[0] : self.end[0] : npoints[0] * 1j]
            self.map = griddata(points, values, self.z)
        if len(self.start) == 2:
            points = numpy.array([self.z.flatten(), self.x.flatten()]).transpose()
            self.z, self.x = numpy.mgrid[
                self.start[0] : self.end[0] : npoints[0] * 1j, self.start[1] : self.end[1] : npoints[1] * 1j,
            ]
            self.map = griddata(points, values, (self.z, self.x))
        if len(self.start) == 3:
            points = numpy.array([self.z.flatten(), self.x.flatten(), self.y.flatten()]).transpose()
            self.z, self.x, self.y = numpy.mgrid[
                self.start[0] : self.end[0] : npoints[0] * 1j,
                self.start[1] : self.end[1] : npoints[1] * 1j,
                self.start[2] : self.end[2] : npoints[2] * 1j,
            ]
            self.map = griddata(points, values, (self.z, self.x, self.y))
            self.header[0] = npoints[0] - 1
            self.header[2] = npoints[1] - 1
            self.header[5] = npoints[2] - 1

    def savemap(self, filename):
        fout = open(filename, "w")
        for n, s in zip(self.map.shape, self.size):
            fout.write("{} {}\n".format(n - 1, s))
        fout.write("{}\n".format(self.norm))
        totmapshape = 1
        for i in self.map.shape:
            totmapshape *= i
        data = self.map.reshape(totmapshape)
        for j in data:
            fout.write("{}\n".format(j))


class project:
    def __init__(self, project_fname=None, settings_fname=None):
        """
        Read and modify project files

        Example::
            p = project('SPK.ini')
            for diff in p.compare_to('MEBT.ini'):
                print(diff)
            p.set('main:beam1_energy', 89e6)
            p.save()
        """
        import json
        import pkg_resources

        if settings_fname is None:
            self._refdict = json.loads(pkg_resources.resource_string(__name__, "data/tw_project_file_reverse_engineered.json"))
        else:
            self._refdict = json.loads(open(self._settings_fname, "r").read())

        self._settings_fname = settings_fname
        self._project_fname = project_fname

        self._dict = {}
        if self._project_fname is not None:
            self._read_settings()

    def _read_settings(self):
        import struct
        import textwrap

        with open(self._project_fname, "rb") as f:
            hexlist = textwrap.wrap(f.read().hex(), 2)
        for key in self._refdict:
            o = self._refdict[key]
            if o[1] == "bool:list":
                vals = [struct.unpack("?", b"".fromhex(hexlist[i]))[0] for i in o[0]]
                if vals.count(True) != 1:
                    raise ValueError(f"Did not find {key} to be set correctly")
                self._dict[key] = o[-1][vals.index(True)]
            else:
                current = "".join(hexlist[o[0] : o[0] + o[2]])
                if o[1] == "bool":
                    # TODO I think we can simplify here by using unpack of type "?"
                    if current == o[3]:
                        self._dict[key] = False
                    elif current == o[4]:
                        self._dict[key] = True
                    else:
                        raise ValueError(f"Wrong setting found for {key}, found {current}, expected one of {o[3:]}")
                elif o[1] in ["d", "f", "i"]:
                    self._dict[key] = struct.unpack(o[1], b"".fromhex(current))[0]

    def print_settings(self, settings=None):
        """
        Print the settings given, or all by default

        :param settings: List of the settings to print
        """
        if settings is None:
            settings = self.keys()

        for setting in settings:
            print(setting, self._dict[setting])

    def keys(self):
        return self._dict.keys()

    def get(self, parameter):
        """
        Get the setting of the parameter
        """
        return self._dict[parameter]

    def get_type(self, parameter):
        """
        Get the type of parameter
        as specified in the reference file
        """
        return self._refdict[parameter][1]

    def get_options(self, parameter):
        """
        Get the possible options for parameter
        as specified in the reference file
        """
        return self._refdict[parameter][-1]

    def set(self, parameter, value):
        """
        Set the new value for parameter
        """
        current = self.get(parameter)
        if isinstance(current, bool):
            if not isinstance(value, bool):
                raise ValueError(f"{parameter} should be True or False")
        elif isinstance(current, (float, int)):
            if not isinstance(value, (float, int)):
                raise ValueError(f"{parameter} should be a number")
        elif self.get_type(parameter) == "bool:list":
            opts = self.get_options(parameter)
            if value not in opts:
                raise ValueError(f"{parameter} should be one of {opts}")
        self._dict[parameter] = value

    def save(self, fname=None):
        """
        Save the project file

        If fname not given, overwrite original file
        """
        import struct
        from textwrap import wrap

        if fname is None:
            fname = self._project_fname

        with open(self._project_fname, "rb") as f:
            hexlist = wrap(f.read().hex(), 2)

        for key in self._dict:
            o = self._refdict[key]
            v = self._dict[key]

            if o[1] == "bool:list":
                for i, val in zip(o[0], o[-1]):
                    if v == val:
                        t = True
                    else:
                        t = False
                    hexlist[i] = struct.pack("?", t).hex()
            else:
                if isinstance(v, bool):
                    # TODO Think we can simplify this by using pack of type ?
                    if v:
                        v = [o[-1]]
                    else:
                        v = [o[-2]]
                else:
                    v = wrap(struct.pack(o[1], v).hex(), 2)
                for i in range(len(v)):
                    hexlist[o[0] + i] = v[i]

        open(fname, "wb").write(bytes.fromhex("".join(hexlist)))

    def compare_to(self, other):
        """
        Compare the settings of this file to a
        different project file

        :param other: project object, or file path to other project file
        """
        diffs = []

        if isinstance(other, str):
            other = project(other)

        for key in self.keys():
            if self.get(key) != other.get(key):
                diffs.append([key, self.get(key), other.get(key)])
        return diffs