GUI/Tkinter_Thermo_Widget.ipynb

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  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "from tkinter import *\n",
    "from metpy.calc import *\n",
    "from metpy.units import units"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 88,
   "metadata": {
    "collapsed": false
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   "source": [
    "class thermo:\n",
    "    \n",
    "    def __init__(self,master):\n",
    "        \n",
    "        # Master frame - entire window\n",
    "        master.title('Thermo Calculations')\n",
    "        self.outer_frame = Frame(master)\n",
    "        self.outer_frame.pack()\n",
    "        \n",
    "        # Inner frame for left side\n",
    "        self.left_frame = Frame(self.outer_frame)\n",
    "        self.left_frame.pack(side=LEFT)\n",
    "        \n",
    "        # Temperature input frame\n",
    "        self.temp_frame = LabelFrame(self.left_frame, text='Temperature (K)', bg='blue', fg='white', height=125, width=250)\n",
    "        self.temp_frame.pack(side=TOP)\n",
    "        self.temp_frame.pack_propagate(0)\n",
    "        self.temp_slider = Scale(self.temp_frame, from_=220, to=330, orient=HORIZONTAL, command=self.calculations)\n",
    "        self.temp_slider.set(275)\n",
    "        self.temp_slider.place(relx=.5, rely=.5, anchor='center')\n",
    "        \n",
    "        # Relative humidity deisplay frame\n",
    "        self.rh_frame = LabelFrame(self.left_frame, text='Relative Humidity (%)', bg='blue', fg='white', height=100, width=250)\n",
    "        self.rh_frame.pack()\n",
    "        self.rh_frame.pack_propagate(0)\n",
    "        self.rh_slider = Scale(self.rh_frame, from_=0, to=100, orient=HORIZONTAL, command=self.calculations)\n",
    "        self.rh_slider.place(relx=.5, rely=.5, anchor='center')\n",
    "        \n",
    "        # Dewpoint temp display frame\n",
    "        self.dewpt_frame = LabelFrame(self.left_frame, text='Dewpoint Temperature', height=100, width=250)\n",
    "        self.dewpt_frame.pack()\n",
    "        self.dewpt_frame.pack_propagate(0)\n",
    "        self.dewpt_text = StringVar()\n",
    "        self.dewpt_label = Label(self.dewpt_frame, textvariable=self.dewpt_text)\n",
    "        self.dewpt_label.place(relx=.5, rely=.5, anchor='center')\n",
    "        \n",
    "        # Mixing ratio display frame\n",
    "        self.mix_ratio_frame = LabelFrame(self.left_frame, text='Mixing Ratio', height=100, width=250)\n",
    "        self.mix_ratio_frame.pack()\n",
    "        self.mix_ratio_frame.pack_propagate(0)\n",
    "        self.mix_ratio_text = StringVar()\n",
    "        self.mix_ratio_label = Label(self.mix_ratio_frame, textvariable=self.mix_ratio_text)\n",
    "        self.mix_ratio_label.place(relx=.5, rely=.5, anchor='center')\n",
    "        \n",
    "        # Saturation mixing ratio display frame\n",
    "        self.sat_mix_ratio_frame = LabelFrame(self.left_frame, text='Saturation Mixing Ratio', height=100, width=250)\n",
    "        self.sat_mix_ratio_frame.pack()\n",
    "        self.sat_mix_ratio_frame.pack_propagate(0)\n",
    "        self.sat_mix_ratio_text = StringVar()\n",
    "        self.sat_mix_ratio_label = Label(self.sat_mix_ratio_frame, textvariable=self.sat_mix_ratio_text)\n",
    "        self.sat_mix_ratio_label.place(relx=.5, rely=.5, anchor='center')\n",
    "        \n",
    "        # Inner frame for right side\n",
    "        self.right_frame = Frame(self.outer_frame)\n",
    "        self.right_frame.pack()\n",
    "        \n",
    "        # Pressure input frame\n",
    "        self.press_frame = LabelFrame(self.right_frame, text='Pressure (mb)', bg='blue', fg='white', height=125, width=250)\n",
    "        self.press_frame.pack()\n",
    "        self.press_frame.pack_propagate(0)\n",
    "        self.press_slider = Scale(self.press_frame, from_=990, to=1030, orient=HORIZONTAL, command=self.calculations)\n",
    "        self.press_slider.set(1010)\n",
    "        self.press_slider.place(relx=.5, rely=.5, anchor='center')\n",
    "        \n",
    "        # Potential temp display frame\n",
    "        self.pot_temp_frame = LabelFrame(self.right_frame, text='Potential Temperature', height=100, width=250)\n",
    "        self.pot_temp_frame.pack()\n",
    "        self.pot_temp_frame.pack_propagate(0)\n",
    "        self.pot_temp_text = StringVar()\n",
    "        self.pot_temp_label = Label(self.pot_temp_frame, textvariable=self.pot_temp_text)\n",
    "        self.pot_temp_label.place(relx=.5, rely=.5, anchor='center')\n",
    "        \n",
    "        # Equiv potential temp display frame\n",
    "        self.equiv_pot_temp_frame = LabelFrame(self.right_frame, text='Equivalent Potential Temperature', height=100, width=250)\n",
    "        self.equiv_pot_temp_frame.pack()\n",
    "        self.equiv_pot_temp_frame.pack_propagate(0)\n",
    "        self.equiv_pot_temp_text = StringVar()\n",
    "        self.equiv_pot_temp_label = Label(self.equiv_pot_temp_frame, textvariable=self.equiv_pot_temp_text)\n",
    "        self.equiv_pot_temp_label.place(relx=.5, rely=.5, anchor='center')\n",
    "        \n",
    "        # Vapor Pressure display frame\n",
    "        self.vap_press_frame = LabelFrame(self.right_frame, text='Vapor Pressure', height=100, width=250)\n",
    "        self.vap_press_frame.pack()\n",
    "        self.vap_press_frame.pack_propagate(0)\n",
    "        self.vap_press_text = StringVar()\n",
    "        self.vap_press_label = Label(self.vap_press_frame, textvariable=self.vap_press_text)\n",
    "        self.vap_press_label.place(relx=.5, rely=.5, anchor='center')\n",
    "        \n",
    "        # Saturation vapor pressure display frame\n",
    "        self.sat_vap_press_frame = LabelFrame(self.right_frame, text='Saturation Vapor Pressure', height=100, width=250)\n",
    "        self.sat_vap_press_frame.pack()\n",
    "        self.sat_vap_press_frame.pack_propagate(0)\n",
    "        self.sat_vap_press_text = StringVar()\n",
    "        self.sat_vap_press_label = Label(self.sat_vap_press_frame, textvariable=self.sat_vap_press_text)\n",
    "        self.sat_vap_press_label.place(relx=.5, rely=.5, anchor='center')\n",
    "        \n",
    "\n",
    "    def calculations(self, value=0): \n",
    "        # value is a dummy variable, needed when widgets call a command - they also send a value\n",
    "        result = self.thermocalcs(self.temp_slider.get(), self.press_slider.get(), self.rh_slider.get())\n",
    "        return result\n",
    "    \n",
    "    def thermocalcs(self, temperature, pressure, rh):\n",
    "        # Calculate potential temperature and equivalent potential temperature\n",
    "        pot_temp = potential_temperature(pressure * units.mbar, temperature * units.kelvin)\n",
    "        self.pot_temp_text.set('{0:.2f}'.format(pot_temp))\n",
    "        equiv_pot_temp = equivalent_potential_temperature(pressure * units.mbar, temperature * units.kelvin)\n",
    "        self.equiv_pot_temp_text.set('{0:.2f}'.format(equiv_pot_temp))\n",
    "        \n",
    "        # Calculate saturation vapor pressure\n",
    "        sat_vap_press = saturation_vapor_pressure(temperature * units.kelvin)\n",
    "        self.sat_vap_press_text.set('{0:.4f} {1:s}'.format(sat_vap_press.magnitude, 'mb'))\n",
    "        \n",
    "        # Caclculate mixing ratio and saturation mixing ratio\n",
    "        mix_ratio = mixing_ratio((rh * sat_vap_press / 100), pressure * units.mbar)\n",
    "        self.mix_ratio_text.set('{0:.6f} {1:s}'.format(mix_ratio.to('g/kg').magnitude, 'g/kg'))\n",
    "        sat_mix_ratio = saturation_mixing_ratio(pressure * units.mbar, temperature * units.kelvin)\n",
    "        self.sat_mix_ratio_text.set('{0:.6f} {1:s}'.format(sat_mix_ratio.to('g/kg').magnitude, 'g/kg'))\n",
    "        \n",
    "        # Calculate vapor pressure\n",
    "        vap_press = sat_vap_press * (rh / 100)\n",
    "        self.vap_press_text.set('{0:.4f} {1:s}'.format(vap_press.magnitude, 'mb'))\n",
    "        \n",
    "        # Calculate dewpoint temperature\n",
    "        if rh == 0:\n",
    "            self.dewpt_text.set('dry')\n",
    "        else:\n",
    "            dewpt = dewpoint_rh(temperature * units.kelvin, (rh/100))\n",
    "            self.dewpt_text.set('{0:.2f}'.format(dewpt.to('kelvin')))\n",
    "        "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 89,
   "metadata": {
    "collapsed": false
   },
   "outputs": [],
   "source": [
    "root = Tk()\n",
    "root.geometry(\"500x525\")\n",
    "app = thermo(root)\n",
    "root.mainloop()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": []
  }
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