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   "source": [
    "This tutorial is for the calibration of an Xpad_flat on the Soleil Diffabs Diffractometer.\n",
    "\n",
    "The calibration data is a scan on the delta motor with a CeO2 calibrant."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {
    "collapsed": false
   },
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   "source": [
    "%matplotlib nbagg\n",
    "\n",
    "# first the imports\n",
    "\n",
    "import os\n",
    "\n",
    "from math import pi\n",
    "\n",
    "import pylab\n",
    "\n",
    "\n",
    "\n",
    "# local import\n",
    "from soleil import *"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# temporary until the ruch is ON\n",
    "ROOT = os.path.join(\"/home\", \"experiences\", \"instrumentation\", \"picca\", \"data\", \"99160066\", \"2016\", \"Run2\")\n",
    "PUBLISHED = os.path.join(\"/home\", \"experiences\", \"instrumentation\", \"picca\", \"data\", \"99160066\", \"published-data\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {
    "collapsed": false,
    "scrolled": true
   },
   "outputs": [],
   "source": [
    "# do a calibration with a well centered sample.\n",
    "\n",
    "# TODO recuperer le point de départ à partir des ponis de référence.\n",
    "# TODO ajouter le diagramme complet à la fin.\n",
    "# TODO ajout du mask pour la calibration\n",
    "\n",
    "json = os.path.join(PUBLISHED, \"calibration\", \"calibration.json\")\n",
    "\n",
    "distance = Length(3.606331e-01)\n",
    "poni1 = Length(1.314012e-01)\n",
    "poni2 = Length(3.613907e-02)\n",
    "rot1 = Angle(0)\n",
    "rot2_scale = pi / 180.0  # convert degree to radian\n",
    "rot2_offset = Angle(0.328063469162)  # radian\n",
    "rot3 = Angle(7.19961198098e-07)\n",
    "\n",
    "params = Calibration(os.path.join(PUBLISHED, \"calibration\", \"XRD18keV_26.nxs\"),\n",
    "                     DatasetPathWithAttribute(\"interpretation\", b\"image\"),\n",
    "                     DatasetPathContains(\"scan_data/actuator_1_1\"),\n",
    "                     [0, 3, 6],\n",
    "                     Calibrant(\"CeO2\"),\n",
    "                     Detector(\"Xpad_flat\"),\n",
    "                     Wavelength(6.8877e-11),\n",
    "                     CalibrationParameters(Parameter[Length](\"dist\", distance, (distance, distance)),\n",
    "                                           Parameter[Length](\"poni1\", poni1, (poni1, poni1)),\n",
    "                                           Parameter[Length](\"poni2\", poni2, (poni2, poni2)),\n",
    "                                           Parameter[Angle](\"rot1\", rot1, (rot1, rot1)),\n",
    "                                           Parameter[float](\"rot2_scale\", rot2_scale, (rot2_scale, rot2_scale)),\n",
    "                                           Parameter[Angle](\"rot2_offset\", rot2_offset, (rot2_offset-0.5, rot2_offset+0.5)),\n",
    "                                           Parameter[Angle](\"rot3\", rot3, (rot3, rot3))\n",
    "                                          )\n",
    "                    )"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "/home/experiences/instrumentation/picca/data/99160066/published-data/calibration/XRD18keV_26.nxs_00.edf\n",
      "/home/experiences/instrumentation/picca/data/99160066/published-data/calibration/XRD18keV_26.nxs_03.edf\n",
      "/home/experiences/instrumentation/picca/data/99160066/published-data/calibration/XRD18keV_26.nxs_06.edf\n"
     ]
    }
   ],
   "source": [
    "# save all the ref as images in order to do the calibration with\n",
    "# pyFAI-calib[2].\n",
    "# temporary until pyFAI-calib2 can read from NeXuS files.\n",
    "\n",
    "save_as_edf(params, os.path.join(PUBLISHED, \"calibration\"))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# execute the calibration\n",
    "\n",
    "#calibration(json, params)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "metadata": {
    "collapsed": false
   },
   "outputs": [],
   "source": [
    "pylab.show()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": []
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