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art/Blot4/project.js

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+const width = 125;
+const height = 125;
+
+// Set document dimensions
+setDocDimensions(width, height);
+
+// Store final lines
+const finalLines = [];
+
+// Parameters for the spiral galaxy
+const numArms = 5; // Number of spiral arms
+const numSegments = 50; // Number of segments per arm
+const centerX = width / 2;
+const centerY = height / 2;
+const maxRadius = 60; // Maximum radius of the spiral
+const rotationIncrement = 5; // Degree rotation per segment
+const arcLength = 15; // Length of each arc segment
+
+/**
+ * Function to generate an arc
+ * @param {number} cx - X-coordinate of the center
+ * @param {number} cy - Y-coordinate of the center
+ * @param {number} startAngle - Starting angle of the arc
+ * @param {number} radius - Radius of the arc
+ * @param {number} length - Length of the arc in degrees
+ */
+function createArc(cx, cy, startAngle, radius, length) {
+  const arc = [];
+  const steps = 10; // Number of points to define the arc
+  const angleStep = (length * Math.PI) / (180 * steps);
+
+  for (let i = 0; i <= steps; i++) {
+    const angle = (startAngle * Math.PI) / 180 + i * angleStep;
+    const x = cx + radius * Math.cos(angle);
+    const y = cy + radius * Math.sin(angle);
+    arc.push([x, y]);
+  }
+
+  return arc;
+}
+
+// Generate spiral arms
+for (let arm = 0; arm < numArms; arm++) {
+  let rotation = (arm * 360) / numArms;
+
+  for (let segment = 0; segment < numSegments; segment++) {
+    const radius = (segment / numSegments) * maxRadius;
+    const arc = createArc(centerX, centerY, rotation, radius, arcLength);
+    finalLines.push(arc);
+    rotation += rotationIncrement; // Increment the angle for the next segment
+  }
+}
+
+// Add a slight rotation to the entire design
+bt.rotate(finalLines, 30, [centerX, centerY]);
+
+// Draw the spiral galaxy
+drawLines(finalLines);