added code-design

content/docs/2023/code-design/13/_index.en.md

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+---
+title: Week 11
+date: 2023-06-23
+weight: 11
+params:
+    pdf_path: 2023-code-and-design-11.pdf
+---
+
+# 2023 Tokyo University of the Arts Art media Center「Code and Design」 Week 11
+
+## Slide
+
+{{< embed_pdf >}}

content/docs/2023/code-design/13/_index.md

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+---
+title: 第13週
+date: 2023-06-23
+weight: 13
+---
+
+# 2023年　東京藝術大学 芸術情報センター開設科目　「コードとデザイン」 第13回
+
+## スライド
+
+(スライド行方不明・・・多分この日はスライドなかったと思います)
+
+## 銅箔テープで作る平面コイルのSVGを出力するProcessingスケッチ
+
+
+
+```java
+import processing.svg.*;
+
+void setup(){
+  noLoop();
+  size(800,800);
+  stroke(0);
+  background(255);
+  beginRecord(SVG, "spiral.svg");
+
+}
+
+float diameter = 800;
+
+
+void draw(){
+  float angle = 0;
+  float r  = 1;
+  float r_step =0.4;
+  float angle_step = 0.1;
+  translate(width/2,height/2);
+  float x_tmp = 0;
+  float y_tmp = 0;
+  while(r < width/2-10){
+    r += r_step;
+    angle += angle_step;
+    float x = r*sin(angle);
+    float y = r*cos(angle);
+    line(x_tmp,y_tmp,x,y);
+    x_tmp = x;
+    y_tmp = y;
+  }
+    r+=9;
+    while(r > 0){
+    r -= r_step;
+    angle -= angle_step;
+    float x = r*sin(angle);
+    float y = r*cos(angle);
+    line(x_tmp,y_tmp,x,y);
+    x_tmp = x;
+    y_tmp = y;
+  }
+endRecord();
+}
+```

content/docs/2023/code-design/13/svg_spiral.pde

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+import processing.svg.*;
+
+void setup(){
+  noLoop();
+  size(800,800);
+  stroke(0);
+  background(255);
+  beginRecord(SVG, "spiral.svg");
+
+}
+
+float diameter = 800;
+
+
+void draw(){
+  float angle = 0;
+  float r  = 1;
+  float r_step =0.4;
+  float angle_step = 0.1;
+  translate(width/2,height/2);
+  float x_tmp = 0;
+  float y_tmp = 0;
+  while(r < width/2-10){
+    r += r_step;
+    angle += angle_step;
+    float x = r*sin(angle);
+    float y = r*cos(angle);
+    line(x_tmp,y_tmp,x,y);
+    x_tmp = x;
+    y_tmp = y;
+  }
+    r+=9;
+    while(r > 0){
+    r -= r_step;
+    angle -= angle_step;
+    float x = r*sin(angle);
+    float y = r*cos(angle);
+    line(x_tmp,y_tmp,x,y);
+    x_tmp = x;
+    y_tmp = y;
+  }
+endRecord();
+}