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diff --git a/snowflake.html b/snowflake.html
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+++ b/snowflake.html
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diff --git a/snowflake.js b/snowflake.js
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+++ b/snowflake.js
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+function drawSnowflake(iteration) {
+ var canvas = document.getElementById("snowflake");
+ var canvasHeight = parseInt(canvas.getAttribute("height"));
+ var canvasWidth = parseInt(canvas.getAttribute("width"));
+
+ var len;
+ if(canvasHeight / canvasWidth <= (Math.sin(Math.PI / 3) * 4 / 3)) {
+ len = canvasHeight * 3 / (4 * Math.sin(Math.PI / 3));
+ } else {
+ len = canvasWidth;
+ }
+ var x = 0;
+ var y = len * Math.sin(Math.PI / 3);
+ var angle = -60 * Math.PI / 180;
+
+ var context = canvas.getContext("2d");
+
+ canvas.width = canvas.width;//Очистка канваса
+
+ context.lineWidth = "1";
+ context.strokeStyle = "#0000FF";
+
+ drawSide(iteration, x, y, angle, len, context);
+
+ x = x + len * Math.cos(angle);
+ y = y + len * Math.sin(angle);
+ angle += 120 * Math.PI / 180;
+ drawSide(iteration, x, y, angle, len, context);
+
+ x = x + len * Math.cos(angle);
+ y = y + len * Math.sin(angle);
+ angle += 120 * Math.PI / 180;
+ drawSide(iteration, x, y, angle, len, context);
+}
+/**
+ * Рисует сторону снежинки Коха
+ *
+ * @param {Number} iteration Количество итераций
+ * @param {Number} x Абсцисса
+ * @param {Number} y Ордината
+ * @param {Number} angle Угол поворота
+ * @param {Number} len Длина линии
+ * @param {object} context HTML context
+ */
+function drawSide(iteration, x, y, angle, len, context) {
+ if(iteration > 0) {
+ drawSide(iteration - 1, x, y, angle, len/3, context);
+
+ x = x + len / 3 * Math.cos(angle);
+ y = y + len / 3 * Math.sin(angle);
+ angle -= 60 * Math.PI / 180;
+ drawSide(iteration - 1, x, y, angle, len/3, context);
+
+ x = x + len / 3 * Math.cos(angle);
+ y = y + len / 3 * Math.sin(angle);
+ angle += 120 * Math.PI / 180;
+ drawSide(iteration - 1, x, y, angle, len/3, context);
+
+ x = x + len / 3 * Math.cos(angle);
+ y = y + len / 3 * Math.sin(angle);
+ angle -= 60 * Math.PI / 180;
+ drawSide(iteration - 1, x, y, angle, len/3, context);
+ }
+ else {
+ var finishX = x + len * Math.cos(angle);
+ var finishY = y + len * Math.sin(angle);
+ drawLine(x, y, finishX, finishY, context);
+ }
+}
+
+function drawLine(x, y, finishX, finishY, context) {
+ context.beginPath();
+ context.moveTo(x, y);
+ context.lineTo(finishX, finishY);
+ context.stroke();
+}
+
+function run() {
+ var iteration = document.getElementById("input").value;
+ drawSnowflake(iteration);
+}
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