ひさだん

@hisadan • 3,395 subscribers

ただのホビープログラマ。Processingで思いつくままにショートコーディング。日々の出来事とか読んだ本の感想などの自分用のライフログはblueskyの方に移りました。こっちはProcessing中心で。

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//#つぶやきProcessing int n=999999,p[]=new int[n],i,j; float t=1; void setup(){ size(800,800); for(i=2;i<n;i++)if(p[i]==0)for(j=i+i;j<n;j+=i)p[j]=i; } void draw(){ clear(); stroke(-1); for(i=2;i<n;i++)if(p[i]==0)circle(i*sin(i*t)/99+400,i*cos(i*t)/99+400,2); t+=1e-7; }

//#つぶやきProcessing int n=999999,p[]=new int[n],i,j; float t=1; void setup(){ size(800,800); for(i=2;i<n;i++)if(p[i]==0)for(j=i+i;j<n;j+=i)p[j]=i; } void draw(){ clear(); stroke(-1); for(i=2;i<n;i++)if(p[i]==0)circle(isin(it)/99+400,icos(it)/99+400,2); t+=1e-7; }

165,093 views • 3 years ago

//#つぶやきProcessing float n=1,t,r; void setup(){ size(800,800); } void draw(){ background(0); stroke(255,255-t*2,255-t*5,256-t*3); translate(400,400); for(r=0;r<TAU;r+=PI/n) line(n*sin(r*t),n*cos(r*t),(400-n)*sin(r),(400-n)*cos(r)); t+=.05; n+=.5; }

//#つぶやきProcessing float n=1,t,r; void setup(){ size(800,800); } void draw(){ background(0); stroke(255,255-t2,255-t5,256-t3); translate(400,400); for(r=0;r<TAU;r+=PI/n) line(nsin(rt),ncos(rt),(400-n)sin(r),(400-n)*cos(r)); t+=.05; n+=.5; }

50,997 views • 1 year ago

//#つぶやきProcessing float p,t; void setup(){ size(800,800); } void draw(){ background(-1); strokeWeight(3); beginShape(); for(t=0;t<50;t+=.1)curveVertex(3*exp(0.1*t)*sin(t*2*sin(p))+400,3*exp(0.1*t)*cos(t)+400); endShape(); p+=.001; }

//#つぶやきProcessing float p,t; void setup(){ size(800,800); } void draw(){ background(-1); strokeWeight(3); beginShape(); for(t=0;t<50;t+=.1)curveVertex(3exp(0.1t)sin(t2sin(p))+400,3exp(0.1t)cos(t)+400); endShape(); p+=.001; }

15,230 views • 6 months ago

//#Processing int n=999,i,s; float a[]=new float[n*2],x,y,e,f,d,k=400; void setup(){ size(800,800); for(i=0;i<n*2;i++)a[i]=random(-k,k);} void draw(){ noStroke(); fill(0,9);square(0,0,800); translate(k,k); fill(-1); for(i=1;i<n;i++){ x=0;y=0; for(s=1;s<n;s++){ if(i!=s){ //cont.

//#Processing int n=999,i,s; float a[]=new float[n2],x,y,e,f,d,k=400; void setup(){ size(800,800); for(i=0;i<n2;i++)a[i]=random(-k,k);} void draw(){ noStroke(); fill(0,9);square(0,0,800); translate(k,k); fill(-1); for(i=1;i<n;i++){ x=0;y=0; for(s=1;s<n;s++){ if(i!=s){ //cont.

32,014 views • 2 years ago

//#つぶやきProcessing float k=9,f=.995;void setup(){size(800,800);}void draw(){clear();stroke(-1,99);a(400,400,99);k*=f;}void a(float x,float y,float d){if(d>10){for(float r=-PI/2;r<=PI/2;r+=PI/3){push();translate(x,y);rotate(r/sqrt(k));line(0,0,0,-d);a(0,-d,d/1.4);pop();}}}

//#つぶやきProcessing float k=9,f=.995;void setup(){size(800,800);}void draw(){clear();stroke(-1,99);a(400,400,99);k*=f;}void a(float x,float y,float d){if(d>10){for(float r=-PI/2;r<=PI/2;r+=PI/3){push();translate(x,y);rotate(r/sqrt(k));line(0,0,0,-d);a(0,-d,d/1.4);pop();}}}

23,496 views • 3 years ago

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