PlantGL Tutorial - Objects and 3D-Visualization¶

PlantGL is an open-source graphic toolkit for the creation, simulation and analysis of 3D virtual plants.

In this tutorial, we will :

create a Sphere object from PlantGL
display some PlantGL objects in 3D

Introduction¶

We need some packages to make this tutorial work.

In [1]:

import k3d
from openalea.plantgl.all import *
from oawidgets.plantgl import PlantGL

Sphere Construction and Display¶

Let's build a Sphere object from PlantGL.

In [2]:

s=Sphere(radius=2)

Now, we display it with the oawidgets.PlantGL function.

In [3]:

PlantGL(s)

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More Objects and more Displays¶

Let's have a scene object in which we add a Sphere and a Box objects.

In [4]:

scene = Scene()
scene.add(Sphere())
b = Box()
tbox = Translated((1,0,0), b)
scene.add(tbox)

Now we visualize the scene.

In [5]:

PlantGL(scene)

UGxvdChhbnRpYWxpYXM9MywgYXhlcz1bJ3gnLCAneScsICd6J10sIGJhY2tncm91bmRfY29sb3I9MTY3NzcyMTUsIGNhbWVyYT1bNC41LCA0LjUsIDQuNSwgMC4wLCAwLjAsIDAuMCwgMS4wLCDigKY=

Have fun !¶

Let's import cool stuff !

In [6]:

from __future__ import print_function
from ipywidgets import interact, interactive, fixed, interact_manual
import ipywidgets as widgets
from random import randint

Let's define some functions.

In [7]:

def color():
    return Material(ambient=Color3(randint(0,255), randint(0,255), randint(0,255)))

def buildSphere(n, rows=2):
    """Build n Spheres at different positions"""
    s = Sphere()
    scene = Scene()
    for i in range(n):
        si = Translated((2*(i%rows),2*(i//rows),0), s)
        scene.add(Shape(si, color()))
    return PlantGL(scene, group_by_color=True)

In [8]:

interact(buildSphere, n=widgets.IntSlider(min=1, max=100, step=1, value=10))

aW50ZXJhY3RpdmUoY2hpbGRyZW49KEludFNsaWRlcih2YWx1ZT0xMCwgZGVzY3JpcHRpb249dSduJywgbWluPTEpLCBJbnRTbGlkZXIodmFsdWU9MiwgZGVzY3JpcHRpb249dSdyb3dzJywgbWHigKY=

Out[8]:

<function __main__.buildSphere>