particles sverchok json

particles_layout.json

{
  "export_version": "0.055",
  "framed_nodes": {},
  "groups": {},
  "nodes": {
    "Script Generator": {
      "bl_idname": "SvScriptNode",
      "color": [
        0.0,
        0.800000011920929,
        0.949999988079071
      ],
      "height": 100.0,
      "hide": false,
      "label": "Text",
      "location": [
        -284.89324951171875,
        88.16504669189453
      ],
      "params": {
        "button_names": "",
        "has_buttons": 0,
        "int_list": [
          0,
          1,
          0,
          3,
          4,
          5,
          6,
          7,
          8,
          9,
          10,
          11,
          12,
          13,
          14,
          15,
          16,
          17,
          18,
          19,
          20,
          21,
          22,
          23,
          24,
          25,
          26,
          27,
          28,
          29,
          30,
          31
        ],
        "script_name": "Text",
        "script_str": "def sv_main(obj_id=[], particle_sys=0):\n\n    in_sockets = [\n        ['s', 'obj_id', obj_id],\n        ['s', 'particle_sys', particle_sys]]\n\n    out_sockets = [\n        ['v', 'locations', []]\n    ]\n\n    objects = bpy.data.objects\n    if not obj_id:\n        return in_sockets, out_sockets       \n    obj = obj_id[1][0]\n    print(obj)\n    if not particle_sys < len(obj.particle_systems):\n        out_sockets[0][2] = []\n        return in_sockets, out_sockets\n\n    ps = obj.particle_systems[particle_sys]\n    particles = ps.particles\n\n    # on large objects list comprehension seems to be slower than index\n    # and . dotted access is also a slowing factor\n    locs = []\n    add_loc = locs.append\n\n    for i in range(len(particles)):\n        # alive_state\n        # angular_velocity\n        # birth_time\n        # die_time\n        # hair_keys\n        # is_exist\n        # is_visible\n        # lifetime\n        pt = particles[i]\n        if pt.is_exist and pt.alive_state == 'ALIVE':\n            add_loc(pt.location[:])\n        # prev_angular_velocity\n        # prev_location\n        # prev_rotation\n        # prev_velocity\n        # rotation\n        # size\n        # velocity\n        #\n\n    out_sockets[0][2] = [locs]\n\n    return in_sockets, out_sockets"
      },
      "width": 140.0
    },
    "Viewer Draw2": {
      "bl_idname": "ViewerNode2",
      "color": [
        0.6284880042076111,
        0.931007981300354,
        1.0
      ],
      "height": 100.0,
      "hide": false,
      "label": "",
      "location": [
        -63.037017822265625,
        157.48562622070312
      ],
      "params": {},
      "width": 140.0
    },
    "get_dataobject": {
      "bl_idname": "SvGetDataObjectNode",
      "color": [
        0.6079999804496765,
        0.6079999804496765,
        0.6079999804496765
      ],
      "height": 100.0,
      "hide": false,
      "label": "",
      "location": [
        -545.5576171875,
        89.25444793701172
      ],
      "params": {
        "Types": "MESH"
      },
      "width": 140.0
    }
  },
  "update_lists": [
    [
      "get_dataobject",
      "Objects",
      "Script Generator",
      "obj_id"
    ],
    [
      "Script Generator",
      "locations",
      "Viewer Draw2",
      "vertices"
    ]
  ]
}