【Coder】PsychoPyで複数の物体を個別にまとめて操作する（Python）

複数物体のプロパティを一括操作できるElementArrayStimのデモ。

#!/usr/bin/env python
# -*- coding: utf-8 -*-

from __future__ import division
from psychopy import visual,core
import numpy as np

win = visual.Window([800, 800], units='pix', monitor='testMonitor')

N = 3	#Num of rows=Set size
fieldSize = 200 #Field size
xys = np.array([[-1*fieldSize,0],[0,0],[fieldSize,0]])  #Element positions
elemSize = [50,10,70] #Element sizes
cols = np.array([[1,-1,-1],[-1,1,-1],[-1,-1,1]]) #R,G,B
masks = 'circle'  #Element shapes
cs = 'rgb'    #RGB color space

tget = visual.ElementArrayStim(win,
        nElements=N, sizes=elemSize, sfs=0, phases=0,
        xys=xys, colors=cols, colorSpace=cs,
        elementMask=masks
        )

tget.draw() #Draw the image.
win.flip()  #Show the drawn image.
core.wait(2)    #Wait 2 seconds.

win.close()
core.quit()

N=100	#Num of rows = Set size
fieldSize = 600 #Field size
xys = np.random.random_sample([N, 2]) * fieldSize - fieldSize / 2.0	#Random element 		positions
elemSize=np.random.random_sample(N) * 100	#Random element sizes
cols=np.random.uniform(low=-1,high=1,size=(N,3))	#Random RGB colors

win.getMovieFrame('front')	#当然、'win'はvisual.Windowオブジェクトの変数名によって変わります。
win.saveMovieFrames('screenshot.jpg')