Added two easy sine-based animations

mathpixelconf.py

@@ -4,4 +4,6 @@ Apps = [
     {"guiname": "Quadratisch", "name": "quadratic", "cmd": "apps/quadratic.py"},
     {"guiname": "Pendel", "name": "pendulum", "cmd": "apps/pendlum.py"},
     {"guiname": "Konvergenz", "name": "convergence", "cmd": "apps/convergence.py"},
+    {"guiname": "Sinic", "name": "sinic", "cmd": "apps/sinic.py"},
+    {"guiname": "Sinic 2", "name": "sinic2", "cmd": "apps/sinic2.py"},
 ]

quadratic.py

@@ -15,7 +15,7 @@ class Slider:
         self.lo = lo
         self.hi = hi
         self.stepSize = step
-        self.pos = 0
+        self.pos = pos
         self.dir = 1
     
     def step(self):
@@ -27,12 +27,12 @@ class Slider:
         self.pos += self.dir * self.stepSize
         return self.pos
 
-Sa = Slider(-10, 10, 0.1/iterations, 0) #1.1
+Sa = Slider(-10, 10, 0.1/iterations, np.random.uniform(-2, 2))
-Sb = Slider(-10, 10, 0.2/iterations, 1) #-2.1
+Sb = Slider(-10, 10, 0.2/iterations, np.random.uniform(-2, 2))
-Sc = Slider(-10, 10, 0.2/iterations, 2) #-0.33
+Sc = Slider(-10, 10, 0.2/iterations, np.random.uniform(-2, 2))
-Sd = Slider(-10, 10, 0.1/iterations, 3) #1.7
+Sd = Slider(-10, 10, 0.1/iterations, np.random.uniform(-2, 2))
-Se = Slider(-10, 10, 0.2/iterations, 4)
+Se = Slider(-10, 10, 0.2/iterations, np.random.uniform(-2, 2))
-Sf = Slider(-10, 10, 0.01/iterations, 5)
+Sf = Slider(0, 6, 0.05/iterations, 0)
 
 x, y = np.meshgrid(
     np.linspace(-4, 4, Nx),
@@ -55,14 +55,17 @@ while True:
     e = Se.step()
     f = Sf.step()
 
+    Sa.pos += b*0.001
+    Sb.pos += c*0.001
+    Sc.pos += d*0.001
+    Sd.pos += e*0.001
+    Se.pos += f*0.001
+    Sf.pos += a*0.001
+
     curve = (np.abs(a*x**2 + b*x*y + c*y**2 + d*x + e*y + f) <= 1.5)*1
 
     cr, cg, cb = colorsys.hsv_to_rgb(color, 1, 1)
 
-
-    s = np.shape(curve)
-
-    #img[:,:,0] = curve
     img[:,:,0] = np.where(curve > 0, curve*cr*255, img[:,:,0])
     img[:,:,1] = np.where(curve > 0, curve*cg*255, img[:,:,1])
     img[:,:,2] = np.where(curve > 0, curve*cb*255, img[:,:,2])
@@ -75,6 +78,5 @@ while True:
 
     color = (color+0.01/iterations ) % 1
 
-    cb = (cb + 0.05) % 1
 
 

setup.sh

@@ -4,9 +4,13 @@ cp -f quadratic.py ../../apps/
 cp -f pendlum.py ../../apps/
 cp -f convergence.py ../../apps/
 cp -f swifthohenberg.py ../../apps/
+cp -f sinic.py ../../apps/
+cp -f sinic2.py ../../apps/
 
 chmod +x ../../apps/quadratic.py
 chmod +x ../../apps/pendlum.py
 chmod +x ../../apps/convergence.py
 chmod +x ../../apps/swifthohenberg.py
+chmod +x ../../apps/sinic.py
+chmod +x ../../apps/sinic2.py
 cp -f mathpixelconf.py ../../configs/

sinic.py

@@ -0,0 +1,67 @@
+#!/usr/bin/env python3
+
+import numpy as np
+import os
+import sys
+import time
+import colorsys
+
+Nx = int(sys.argv[1])
+Ny = int(sys.argv[2])
+iterations = 2
+
+class Slider:
+    def __init__(self, lo, hi, step, pos=0):
+        self.lo = lo
+        self.hi = hi
+        self.stepSize = step
+        self.pos = pos
+        self.dir = 1
+    
+    def step(self):
+        if self.pos >= self.hi:
+            self.dir = -1
+        elif self.pos <= self.lo:
+            self.dir = 1
+        
+        self.pos += self.dir * self.stepSize
+        return self.pos
+
+x, y = np.meshgrid(
+    np.linspace(-2, 2, Nx),
+    np.linspace(-2, 2, Ny))
+
+img = np.zeros( [Ny, Nx, 3] )
+
+Sa = Slider(-3, 3, 0.01, -0.5)
+Sb = Slider(-3, 3, 0.01, 0.5)
+Sc = Slider(0, 1, 0.005, 0)
+
+Scolor = Slider(0, 1, 0.01/iterations, 0)
+
+step = 0
+while True:
+    a = Sa.step()
+    b = Sb.step()
+    c = Sc.step()
+
+    Sa.pos += b*0.001
+    Sb.pos += c*0.001
+    Sc.pos += a*0.001
+
+    curve = 1*(np.sin(c) + np.sin(np.sin(a*x) + np.cos(b*y)) - np.cos(np.sin(b*x*y) + np.cos(b*x)) <= 0.1)
+
+    cr, cg, cb = colorsys.hsv_to_rgb(Scolor.step(), 1, 1)
+
+    img[:,:,0] = curve*cr*255
+    img[:,:,1] = curve*cg*255
+    img[:,:,2] = curve*cb*255
+
+    step += 1
+    if step % iterations == 0:
+        out = img.reshape((Nx*Ny*3,)).astype(np.uint8)
+        os.write(1, out.tobytes())
+        time.sleep(0.01)
+
+
+

sinic2.py

@@ -0,0 +1,67 @@
+#!/usr/bin/env python3
+
+import numpy as np
+import os
+import sys
+import time
+import colorsys
+
+Nx = int(sys.argv[1])
+Ny = int(sys.argv[2])
+iterations = 2
+
+class Slider:
+    def __init__(self, lo, hi, step, pos=0):
+        self.lo = lo
+        self.hi = hi
+        self.stepSize = step
+        self.pos = pos
+        self.dir = 1
+    
+    def step(self):
+        if self.pos >= self.hi:
+            self.dir = -1
+        elif self.pos <= self.lo:
+            self.dir = 1
+        
+        self.pos += self.dir * self.stepSize
+        return self.pos
+
+x, y = np.meshgrid(
+    np.linspace(-2, 2, Nx),
+    np.linspace(-2, 2, Ny))
+
+img = np.zeros( [Ny, Nx, 3] )
+
+Sa = Slider(-3, 3, 0.01, -0.5)
+Sb = Slider(-3, 3, 0.01, 0.5)
+Sc = Slider(0, 1, 0.005, 0)
+
+Scolor = Slider(0, 1, 0.01/iterations, 0)
+
+step = 0
+while True:
+    a = Sa.step()
+    b = Sb.step()
+    c = Sc.step()
+
+    Sa.pos += b*0.001
+    Sb.pos += c*0.001
+    Sc.pos += a*0.001
+
+    curve = 1*(c+np.sin(a*x*x-b*y*y)-np.sin(a*x+b*y)-np.cos(a*b*x*y) <= 0.1)
+
+    cr, cg, cb = colorsys.hsv_to_rgb(Scolor.step(), 1, 1)
+
+    img[:,:,0] = curve*cr*255
+    img[:,:,1] = curve*cg*255
+    img[:,:,2] = curve*cb*255
+
+    step += 1
+    if step % iterations == 0:
+        out = img.reshape((Nx*Ny*3,)).astype(np.uint8)
+        os.write(1, out.tobytes())
+        time.sleep(0.01)
+
+
+