Megatruh: Apa-apaan ini Kin?
Kinanthi: Apanya yang apa-apaan Meg?
M: Puisimu ini?
K: Kamu baca puisiku? Wow, horee..., aku punya tambahan penggemar
M: Puisinya bagus...
K: ...dari nol penggemar menjadi satu pengemar...
M: ...tapi tak logis.
K: ...dan semua penggemarku, yang cuma satu itu, bilang bagus.
M: Yeah, tapi gak logis.
K: Gakpapa, yang penting ada bagus-nya.
M: Masak disini kamu tulis Daun jatuh tak membenci angin. Lha jelas daun yang jatuh gara-gara angin itu kan daun tua yang kering, tentu saja pasrah saja dia tertiup angin.
K: Puisi kan gak perlu logis to Meg.
M: Ini bukan puisi penambah semangat.
K: Memang bukan. Puisiku yang ini tentang pasrah setelah berusaha.
M: Lha kalau gambarannya daun jatuh karena angin, berarti pasrah sampai tua dong.
K: Eh, iya juga.
M: Harusnya bikin yang menambah semangat atau tahan banting atau bertahan semacam Daun yang kuat takkan jatuh sekalipun badai.
K: Wah, trims Meg, ide bagus buat bahan puisi baruku
M: ...
Sunday, May 29, 2016
Saturday, May 28, 2016
Wednesday, May 25, 2016
Bouncing Ball inside Sphere
from visual import *
from random import uniform
display(center=(0,2,0),background=(1,1,1), autoscale=False, range=4.5,
width=600, height=600, forward=(-.4,-.3,-1)) #arah kamera
distant_light(direction=(1,1,1), color=color.red)
Ball = sphere(radius=2, length=4, opacity=.3)
bola = sphere(color=color.green,radius=.2)
bola.y = 1
bola.x = -1
bola.z = 1
v = vector(2,1,0)
dt = 1./16
r = bola.pos
rc = Ball.radius
def pantul():
global r,v
if mag(r)>=rc:
r = 1.99*norm(r)
vp = (dot(v,norm(r)))*norm(r)
vr = v-vp
v = vr - vp
def proses():
global r,v
a = vector(0,0,0)
v += a*dt
r += v*dt
bola.pos = r
pantul()
while 1:
rate(37)
proses()
Tuesday, May 24, 2016
Bouncing inside Cylinder
from visual import *
from random import uniform
display(center=(0,2,0),background=(1,1,1), autoscale=False, range=4.5,
width=600, height=600, forward=(-.4,-.3,-1)) #arah kamera
distant_light(direction=(1,1,1), color=color.red)
silinder = cylinder(radius=2, length=4, opacity=.3)
silinder.rotate(angle=pi/2, axis=(0,0,1),origin=(0,0,0))
bola = sphere(color=color.green,radius=.2)
bola.y = 0
bola.x = 0
bola.z = 1
v = vector(2,0,0)
dt = 1./16
r = bola.pos
rc = silinder.radius
def pantul():
global r,v
if mag(r)>=rc:
r = 1.9*norm(r)
vp = (dot(v,norm(r)))*norm(r)
vr = v-vp
v = vr - vp
def proses():
global r,v
a = vector(0,0,0)
v += a*dt
r += v*dt
bola.pos = r
pantul()
while 1:
rate(7)
proses()
Saturday, May 21, 2016
Thursday, May 12, 2016
Bounce Over Spherical Surface
#code
from visual import * from random import uniform display(center=(0,2,0),background=(1,1,1), autoscale=False, range=7.5, width=600, height=600, forward=(-.4,-.3,-1)) #arah kamera distant_light(direction=(1,1,1), color=color.red) ball = sphere(radius=2, color=color.red, opacity = .5) r2 = ball.radius silinder = cylinder(radius=2, length=4, opacity=.3) silinder.rotate(angle=pi/2, axis=(0,0,1),origin=(0,0,0)) bola = sphere(color=color.green,radius=.2) bola.y = 3 bola.x = uniform(-1,1) bola.z = uniform(-1,1) v = vector(0,2,0) dt = 1./8. r = bola.pos def pantul(): global r,v print v if mag(r)<r2: print mag(r) arah = norm(r) dv = dot(v,arah) v -= dv*arah r = (r2+.2)*arah def proses(): global r,v a = vector(0,-1,0) v += a*dt r += v*dt bola.pos = r pantul() while 1: rate(11) proses()
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