示例#1
0
    def __init__(self, gal_ob, **kwargs):

        # handle default values and kwargs
        args = dict(type='Total',
                    label='Summed Galaxy Profile',
                    color='k',
                    xlabel='x [kpc]',
                    ylabel='y [kpc]',
                    vlabel='km/s',
                    flabel='Jy',
                    silent=False)
        args = aux.update_dictionary(args, kwargs)
        for key in args:
            setattr(self, key, args[key])
        for key in args:
            setattr(self, key, args[key])

        if not self.silent: print("constructing datacube...")

        # add attributes
        self.gal_obj = gal_ob
        self.add_shape()

        if not self.silent:
            print("datacube constructed for %s.\n" % gal_ob.name)
示例#2
0
    def get_raw_data(self, **kwargs):

        # handle default args and kwargs
        args = dict(data='sim')
        args = aux.update_dictionary(args, kwargs)
        for key in args:
            exec(key + '=args[key]')

        # choose which particle_data to load
        if data == 'sim':
            names = self.sim_names
        if data == 'ISM':
            names = self.ISM_names

        # make empty container for pandas data
        collection = {}

        # collect all data into container
        for key, name in names.items():
            data = aux.load_temp_file(name, 'data')
            # data1           =   pd.read_pickle(name)
            # data1['type']   =   key

            collection[key] = data  #.append(data1)

        return collection
示例#3
0
    def get_map(self, **kwargs):

        # handle default values and kwargs
        args = dict(choose_map='GMC', grid_length=100)
        args = aux.update_dictionary(args, kwargs)
        for key in args:
            exec(key + '=args[key]')

        # pick data to load
        if choose_map == 'GMC' or choose_map == 'dif':
            data = self.get_raw_data(data='ISM')
        else:
            data = self.get_raw_data()
        # filter data for selected sim type or ISM phase
        data = data[choose_map]

        # get positional grid
        X = np.linspace(-x_max_pc, x_max_pc, grid_length) / 1000
        dx = X[-1] - X[-2]
        grid = np.matmul(X[:, None], X[None, :])

        # create empty map
        mass_map = np.zeros_like(grid)

        for j, y in enumerate(X[:-1]):
            for k, x in enumerate(X[:-1]):

                # create mask that selects particles in a pixel at position [x,y]
                gas1 = data[(data.y >= X[j]) & (data.y < X[j + 1]) &
                            (data.x >= X[k]) & (data.x < X[k + 1])]

                # get total mass of pixel
                mass_map[j, k] = np.sum(gas1['m'].values)

        # collect results
        results = dict(X=X,
                       Y=X,
                       Z=mass_map,
                       title='Total Mass',
                       plot_style='map')
        results = aux.update_dictionary(results, kwargs)

        # return plot_it instance
        return plot_it(results)
示例#4
0
    def get_line_lum(self, **kwargs):

        # handle default values and kwargs
        args = dict(ISM_phases=ISM_phases)
        # args            =   dict(target='L_CII',ISM_phases=ISM_phases)
        args = aux.update_dictionary(args, kwargs)
        for key in args:
            exec(key + '=args[key]')

        tot_line_lum = 0
        for i, ISM_phase in enumerate(ISM_phases):
            cube_i = self.get_dc(ISM_phase, **kwargs)
            # cube_i          =   self.__get_dc(ISM_phase=ISM_phase,target=target)
            tot_line_lum += cube_i['dc_sum']

        return tot_line_lum
示例#5
0
    def __get_dc_file_location(self, **kwargs):

        # handle default values and kwargs
        args = dict(ISM_dc_phase='GMC', target='L_CII', test=False)
        args = aux.update_dictionary(args, kwargs)
        for key in args:
            exec(key + '=args[key]')

        # construct file name
        filename = d_data + 'datacubes/%s_%s_%s_i%s_G%s.h5' % (
            z1, target, ISM_dc_phase, inc_dc, self.gal_obj.gal_index + 1)
        if test:
            filename = d_data + 'datacubes/%s_%s_%s_i%s_G%s.h5' % (
                z1, target, ISM_dc_phase, inc_dc, self.gal_obj.gal_index + 1)

        return filename
示例#6
0
    def gas_quiver_plot(self, **kwargs):

        # get default plot params
        plot.set_mpl_params()

        # make figure
        fig = plt.figure(figsize=(8, 6))
        ax = fig.add_subplot(111)

        # get gas data
        sim_data = self.get_data()  # default is already data='sim'
        sim_gas = sim_data[sim_data.type == 'gas']

        # make plot object and add it to ax
        results = dict(plot_style='quiver', data=sim_gas)
        results = aux.update_dictionary(results, kwargs)
        ob = plot_it(results)
        ob.add_to_axis(ax, **kwargs)
示例#7
0
    def __init__(self,**kwargs):

        args                    =   dict(z1=z1)
        args                    =   aux.update_dictionary(args,kwargs)
        for key in args: exec(key + '=args[key]')

        try:
	        file_location       =   self.__get_GR_file_location(z1)
	        GR_dict             =   pd.read_pickle(file_location)
        except IOError:
            print('Searched for %s ' % file_location)
            print('No file with model results found, will create one')
            GR_dict             =   self.__create_GR_file(z1)

        # Set values in stored dictionary as attributes to global result object
        for key in GR_dict: setattr(self,key,GR_dict[key])

        # Search for and create attributes
        missing_attr            =   self.__find_missing_attr()

        # for key in missing_attr: setattr(self,key,missing_attr[key])
        self.__save_GR_file(self.__dict__,file_location)
示例#8
0
    def print_galaxy_properties(self,**kwargs):

        args        =   dict(gal_index=0)
        args        =   aux.update_dictionary(args,kwargs)
        for key in args: exec(key + '=args[key]')


        print('\nProperties of Galaxy number %s, %s, at redshift %s' % (gal_index+1,self.galnames[gal_index],self.zreds[gal_index]))

        # Print these properties
        print('+%20s+%20s+%15s+' % ((20*'-'), (20*'-'), (15*'-')))
        print('|%20s|%20s|%15s|' % ('Property'.center(20), 'Value'.center(20), 'Name in code'.center(15)))
        print('+%20s+%20s+%15s+' % ((20*'-'), (20*'-'), (15*'-')))
        print('|%20s|%20s|%15s|' % ('Redshift'.center(20), '{:.3f}'.format(self.zreds[gal_index]), 'zred'.center(15)))
        print('|%20s|%20s|%15s|' % ('Radius'.center(20), '{:.3f}'.format(np.max(self.R_gal[gal_index])), 'R_gal'.center(15)))
        print('|%20s|%20s|%15s|' % ('Stellar mass'.center(20), '{:.3e}'.format(self.M_star[gal_index]), 'M_star'.center(15)))
        print('|%20s|%20s|%15s|' % ('ISM mass'.center(20), '{:.3e}'.format(self.M_gas[gal_index]), 'M_gas'.center(15)))
        print('|%20s|%20s|%15s|' % ('DM mass'.center(20), '{:.3e}'.format(self.M_dm[gal_index]), 'M_dm'.center(15)))
        print('|%20s|%20s|%15s|' % ('Dense gas mass'.center(20), '{:.3e}'.format(self.M_dense[gal_index]), 'M_dense'.center(15)))
        print('|%20s|%20s|%15s|' % ('SFR'.center(20), '{:.3f}'.format(self.SFR[gal_index]), 'SFR'.center(15)))
        print('|%20s|%20s|%15s|' % ('SFR surface density'.center(20), '{:.4f}'.format(self.SFRsd[gal_index]), 'SFRsd'.center(15)))
        print('|%20s|%20s|%15s|' % ('SFR-weighted Z'.center(20), '{:.4f}'.format(self.Zsfr[gal_index]), 'Zsfr'.center(15)))
        print('+%20s+%20s+%15s+' % ((20*'-'), (20*'-'), (15*'-')))
示例#9
0
    def __init__(self, **kwargs):

        # get global results
        import global_results as glo
        GR = glo.global_results()

        # handle default values and kwargs
        args = dict(gal_index=0,
                    N_radial_bins=30,
                    classification='spherical',
                    silent=False)
        args = aux.update_dictionary(args, kwargs)
        for key in args:
            exec(key + '=args[key]')
        if not silent: print("constructing galaxy...")

        # grab some info from global results for this galaxy
        self.radius = GR.R_gal[gal_index]
        self.name = GR.galnames[gal_index]
        self.zred = GR.zreds[gal_index]
        self.SFR = GR.SFR[gal_index]
        self.SFRsd = GR.SFRsd[gal_index]
        self.UV_str = aux.get_UV_str(z1, self.SFRsd)
        self.lum_dist = GR.lum_dist[gal_index]
        self.ang_dist_kpc = self.lum_dist * 1000. / (1 + self.zred)**2

        # add attributes from args
        for key in args:
            setattr(self, key, args[key])

        # add objects
        objects = ['datacube', 'particle_data']
        for ob in objects:
            self.add_attr(ob, **args)

        if not silent: print("galaxy %s constructed.\n" % self.name)
示例#10
0
    def __init__(self, gal_ob, **kwargs):

        # handle default values and kwargs
        args = dict(units='kpc', silent=False)
        args = aux.update_dictionary(args, kwargs)
        for key in args:
            setattr(self, key, args[key])
        for key in args:
            exec(key + '=args[key]')
        if not self.silent: print("constructing particle_data...")

        # add labels for spatial dimentions
        dim = ['x', 'y', 'z']
        for x in dim:
            setattr(self, x + 'label', '%s [%s]' % (x, units))

        # add galaxy
        self.gal_ob = gal_ob

        # add dictionaries of names for all sim types and ISM phases
        self.add_names()

        if not self.silent:
            print("particle_data constructed for %s.\n" % gal_ob.name)
示例#11
0
    def preview(self, **kwargs):

        # handle default values and kwargs
        args = dict(phase='GMC',
                    lw_velocity=True,
                    lw_dispersion=True,
                    l_summed=True,
                    mw_velocity=True,
                    mw_dispersion=True,
                    m_summed=True)
        args = aux.update_dictionary(args, kwargs)
        for key in args:
            exec(key + '=args[key]')

        # make empty container for map objects
        maps = {}

        if lw_velocity:
            maps['lw_vel'] = self.get_map(xlabel='',
                                          ylabel='',
                                          phase=phase,
                                          cmap=cm.seismic,
                                          **kwargs)

        if lw_dispersion:
            maps['lw_dis'] = self.get_map(xlabel='',
                                          ylabel='',
                                          phase=phase,
                                          method='dispersion',
                                          cmap=cm.viridis,
                                          **kwargs)

        if l_summed:
            maps['l_sum'] = self.get_map(label='log(Z)',
                                         xlabel='',
                                         ylabel='',
                                         phase=phase,
                                         method='summed',
                                         **kwargs)

        if mw_velocity:
            maps['mw_vel'] = self.get_map(xlabel='',
                                          ylabel='',
                                          line='m',
                                          phase=phase,
                                          cmap=cm.seismic,
                                          **kwargs)

        if mw_dispersion:
            maps['mw_dis'] = self.get_map(xlabel='',
                                          ylabel='',
                                          line='m',
                                          phase=phase,
                                          method='dispersion',
                                          cmap=cm.viridis,
                                          **kwargs)

        if m_summed:
            maps['m_sum'] = self.get_map(label='log(Z)',
                                         xlabel='',
                                         ylabel='',
                                         line='m',
                                         phase=phase,
                                         method='summed',
                                         **kwargs)

        # convert maps to Series
        maps = pd.Series(maps)

        # find convenient number of rows and columns
        size = maps.size
        n_rows = int(divmod(size, np.sqrt(size))[0])
        n_cols = int(divmod(size, n_rows)[0])

        # organize panel display
        panels = np.empty(n_rows * n_cols, dtype='O')
        for i, m in enumerate(maps):
            panels[i] = m

        # set up default plot parameters
        plot.set_mpl_params()

        # make figure
        if n_rows > 3:
            figsize = (15, 15)
        else:
            figsize = (15, 5)
        fig, ax = plt.subplots(n_rows,
                               n_cols,
                               figsize=figsize,
                               sharex=True,
                               sharey=True)
        if n_rows == 1:
            panels = panels[None, :]
            ax = ax[None, :]
        panels = panels.reshape([n_rows, n_cols])

        for i in range(n_rows):
            for j in range(n_cols):
                ob = panels[i, j]
                if ob == None: continue
                ob.add_to_axis(ax[i, j], **kwargs)

        fig.text(0.5, 0.04, self.xlabel, ha='center')
        fig.text(0.04, 0.5, self.ylabel, va='center', rotation='vertical')
        plt.show(block=False)
示例#12
0
    def get_map(self, **kwargs):

        # handle default values and kwargs
        args = dict(target='L_CII', ISM_phase='GMC', method='velocity')
        args = aux.update_dictionary(args, kwargs)
        for key in args:
            exec(key + '=args[key]')

        # variable for title selection
        if target == 'm':
            target_str = 'Mass'
        else:
            target_str = 'Luminosity'

        # pull datacube
        if ISM_phase in ISM_phases:
            cube = self.get_dc(ISM_phase=ISM_phase, target=target)
        else:
            cube = self.get_dc_summed(target=target, **kwargs)

        # set up X-Y axies
        X = np.linspace(-x_max_pc, x_max_pc, cube['x_axis'].shape[0]) / 1000
        X, Y = np.meshgrid(X, X)

        # get map values
        if method == 'summed':

            # get the datacube summed over velocity axis
            Z = cube['data'].sum(axis=0)
            Z = np.log10(Z)

            # get plot title
            title = "Summed %s %s" % (ISM_phase, target_str)

            # raise the lower limit higher than what it is set to in make_map
            args['vmin'] = 0

        elif method == 'dispersion':

            # make a copy of the datacube for manipulation
            dc = np.array(cube['data'], copy=True)

            # multiply spacial values by their coresponding velocity values
            for i, v in enumerate(cube['v_axis']):
                dc[i, :, :] *= v

            # divide result by the original datacube summed over velocity axis
            dc /= cube['data'].sum(axis=0)

            # get the standard deviation of the weighted datacube along velocity axis
            Z = np.std(dc, axis=0)

            # get plot title
            title = "%s %s-Weighted %s" % (ISM_phase, target_str,
                                           method.title())

        else:  # default

            # get the weighted values
            Z = -1. * np.tensordot(cube['v_axis'], cube['data'],
                                   1) / cube['data'].sum(axis=0)

            # get plot title
            title = "%s %s-Weighted %s" % (ISM_phase, target_str,
                                           method.title())

        # collect results
        results = kwargs
        results.update(dict(X=X, Y=Y, Z=Z.T, title=title))

        # return generic object of results
        return make_map(results)
示例#13
0
    def positions_plot(self, **kwargs):

        # handle default values and kwargs
        args = dict(dm=False, gas=True, star=True, GMC=False, dif=False)
        args = aux.update_dictionary(args, kwargs)
        for key in args:
            exec(key + '=args[key]')

        # pull particle data
        if any([dm, gas, star]): sim_data = self.get_data()
        if any([GMC, dif]): ISM_data = self.get_data(data='ISM')

        # run default plot params
        plot.set_mpl_params()

        # make figure
        fig = plt.figure()
        ax = fig.add_subplot(111, projection='3d')

        # choose different plotting parameters for different sim types
        for sim_type in sim_types:
            if sim_type == 'dm':
                if not dm: continue
                alpha = .1
                size = .5
                data = sim_data[sim_data.type == 'dm']
            elif sim_type == 'star':
                if not star: continue
                alpha = 1
                size = 20
                data = sim_data[sim_data.type == 'star']
            else:
                if not gas: continue
                alpha = .5
                size = 1
                data = sim_data[sim_data.type == 'gas']

            # gather sim results
            sim_results = dict(plot_style='scatter',
                               dim3=True,
                               data=data,
                               alpha=alpha,
                               size=size,
                               color=sim_colors[sim_type],
                               label=sim_labels[sim_type])
            sim_results = aux.update_dictionary(sim_results, kwargs)

            # turn sim results into plot_it instance
            sim_ob = plot_it(sim_results)

            # add sim_ob onto ax
            sim_ob.add_to_axis(ax, **kwargs)

        # choose different plotting parameters for different ISM phases
        for phase in ISM_phases:
            if phase == 'GMC':
                if not GMC: continue
                alpha = .5
                size = 1
                data = ISM_data[ISM_data.type == 'GMC']
            elif phase == 'dif':
                if not dif: continue
                alpha = .4
                size = 1
                data = ISM_data[ISM_data.type == 'dif']

            # gather ISM results
            ISM_results = dict(plot_style='scatter',
                               dim3=True,
                               data=data,
                               alpha=alpha,
                               size=size,
                               color=sim_colors[sim_type],
                               label=sim_labels[sim_type])
            ISM_results = aux.update_dictionary(ISM_results, kwargs)

            # turn sim results into plot_it instance
            ISM_ob = plot_it(sim_results)

            # add sim_ob onto ax
            ISM_ob.add_to_axis(ax, **kwargs)

        pad = 20
        ax.set_xlabel(self.xlabel, labelpad=pad)
        ax.set_ylabel(self.xlabel, labelpad=pad)
        ax.set_zlabel(self.xlabel, labelpad=pad)
        ax.set_aspect(1)
        ax.legend()

        plt.show()