Running L-Py without GUI

example.lpy

Axiom: A(1)

production:

derivation length: 6

A(n) :
  produce F(1)[+(30.)A(n+1)] [-(30.)A(n+1)]F(0.2);(3)@o(0.2)

endlsystem

Lpy_without_GUI.ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# How to run lpy without the GUI?\n",
    "\n",
    "The script will showcase different stages:\n",
    " - Load a lpy simulation program.\n",
    " - Iterate several times (defined by derivation length)\n",
    " - Generate the 3D representation\n",
    "\n",
    "\n",
    "## Installation\n",
    "To install it, please create a conda environment (Python 2 is manatory)::\n",
    "\n",
    "    conda create -n lpy -c openalea openalea.lpy\n",
    "\n",
    "To run the script in a shell, launch ipython with qt\n",
    "\n",
    "%gui qt\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "metadata": {},
   "outputs": [],
   "source": [
    "%gui qt\n",
    "\n",
    "# Import lpy library\n",
    "from openalea.lpy import *\n",
    "from openalea.plantgl.all import Viewer\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "('Lstring: ', AxialTree(F(1)[+(30)A(2)][-(30)A(2)]F(0.2);(3)@o(0.2)))\n",
      "('Lstring: ', AxialTree(F(1)[+(30)F(1)[+(30)A(3)][-(30)A(3)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)A(3)][-(30)A(3)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)))\n",
      "('Lstring: ', AxialTree(F(1)[+(30)F(1)[+(30)F(1)[+(30)A(4)][-(30)A(4)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)A(4)][-(30)A(4)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)F(1)[+(30)A(4)][-(30)A(4)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)A(4)][-(30)A(4)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)))\n",
      "('Lstring: ', AxialTree(F(1)[+(30)F(1)[+(30)F(1)[+(30)F(1)[+(30)A(5)][-(30)A(5)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)A(5)][-(30)A(5)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)F(1)[+(30)A(5)][-(30)A(5)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)A(5)][-(30)A(5)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)F(1)[+(30)F(1)[+(30)A(5)][-(30)A(5)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)A(5)][-(30)A(5)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)F(1)[+(30)A(5)][-(30)A(5)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)A(5)][-(30)A(5)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)))\n",
      "('Lstring: ', AxialTree(F(1)[+(30)F(1)[+(30)F(1)[+(30)F(1)[+(30)F(1)[+(30)A(6)][-(30)A(6)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)A(6)][-(30)A(6)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)F(1)[+(30)A(6)][-(30)A(6)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)A(6)][-(30)A(6)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)F(1)[+(30)F(1)[+(30)A(6)][-(30)A(6)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)A(6)][-(30)A(6)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)F(1)[+(30)A(6)][-(30)A(6)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)A(6)][-(30)A(6)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)F(1)[+(30)F(1)[+(30)F(1)[+(30)A(6)][-(30)A(6)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)A(6)][-(30)A(6)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)F(1)[+(30)A(6)][-(30)A(6)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)A(6)][-(30)A(6)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)F(1)[+(30)F(1)[+(30)A(6)][-(30)A(6)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)A(6)][-(30)A(6)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)F(1)[+(30)A(6)][-(30)A(6)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)A(6)][-(30)A(6)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)))\n",
      "('Lstring: ', AxialTree(F(1)[+(30)F(1)[+(30)F(1)[+(30)F(1)[+(30)F(1)[+(30)F(1)[+(30)A(7)][-(30)A(7)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)A(7)][-(30)A(7)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)F(1)[+(30)A(7)][-(30)A(7)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)A(7)][-(30)A(7)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)F(1)[+(30)F(1)[+(30)A(7)][-(30)A(7)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)A(7)][-(30)A(7)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)F(1)[+(30)A(7)][-(30)A(7)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)A(7)][-(30)A(7)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)F(1)[+(30)F(1)[+(30)F(1)[+(30)A(7)][-(30)A(7)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)A(7)][-(30)A(7)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)F(1)[+(30)A(7)][-(30)A(7)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)A(7)][-(30)A(7)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)F(1)[+(30)F(1)[+(30)A(7)][-(30)A(7)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)A(7)][-(30)A(7)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)F(1)[+(30)A(7)][-(30)A(7)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)A(7)][-(30)A(7)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)F(1)[+(30)F(1)[+(30)F(1)[+(30)F(1)[+(30)A(7)][-(30)A(7)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)A(7)][-(30)A(7)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)F(1)[+(30)A(7)][-(30)A(7)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)A(7)][-(30)A(7)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)F(1)[+(30)F(1)[+(30)A(7)][-(30)A(7)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)A(7)][-(30)A(7)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)F(1)[+(30)A(7)][-(30)A(7)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)A(7)][-(30)A(7)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)F(1)[+(30)F(1)[+(30)F(1)[+(30)A(7)][-(30)A(7)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)A(7)][-(30)A(7)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)F(1)[+(30)A(7)][-(30)A(7)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)A(7)][-(30)A(7)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)F(1)[+(30)F(1)[+(30)A(7)][-(30)A(7)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)A(7)][-(30)A(7)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)F(1)[+(30)A(7)][-(30)A(7)]F(0.2);(3)@o(0.2)][-(30)F(1)[+(30)A(7)][-(30)A(7)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)]F(0.2);(3)@o(0.2)))\n"
     ]
    }
   ],
   "source": [
    "# Create the simulation object from a given file\n",
    "lsys = Lsystem(\"example.lpy\")\n",
    "\n",
    "n = lsys.derivationLength\n",
    "tree = lsys.axiom\n",
    "for i in range(n):\n",
    "    # Apply rewritting rules on the tree -> One step of simulation\n",
    "    tree = lsys.iterate(tree, 1)\n",
    "    print('Lstring: ', tree)\n",
    "\n",
    "    # COmpute the scene interpretation\n",
    "    # That is apply geometric rules to retrieve the 3D plant\n",
    "    scene = lsys.sceneInterpretation(tree)\n",
    "\n",
    "    # Display or save in a given format the scene\n",
    "    Viewer.display(scene)\n",
    "    # if it goes too fast, you can sleep or ask user to give an input\n",
    "    #raw_input('next?')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
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  "kernelspec": {
   "display_name": "IPython (Python 2)",
   "language": "python",
   "name": "python2"
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  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 2
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   "file_extension": ".py",
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   "pygments_lexer": "ipython2",
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test.py

"""A script that run lpy without the GUI.

The script will showcase different stages:
 - Load a lpy simulation program.
 - Iterate several times (defined by derivation length)
 - Generate the 3D representation


To install it, please create a conda environment (Python 2 is manatory)::

    conda create -n lpy -c openalea openalea.lpy

To run the script, launch ipython with qt

ipython
%gui qt
"""

# Import lpy library
from openalea.lpy import *
from openalea.plantgl.all import Viewer

# Create the simulation object from a given file
lsys = Lsystem("example.lpy")

n = lsys.derivationLength
tree = lsys.axiom
for i in range(n):
    # Apply rewritting rules on the tree -> One step of simulation
    tree = lsys.iterate(tree, 1)
    print(tree)

    # COmpute the scene interpretation
    # That is apply geometric rules to retrieve the 3D plant
    scene = lsys.sceneInterpretation(tree)

    # Display or save in a given format the scene
    Viewer.display(scene)
    # if it goes too fast, you can sleep or ask user to give an input
    #raw_input('next?')