Android/グラフィック/星型
提供: 初心者エンジニアの簡易メモ
2015年5月20日 (水) 02:58時点における127.0.0.1 (トーク)による版 (ページの作成:「 float rad = (mFrameIndex / 10) % 3.6; float x1 = (float)(200 * Math.cos(rad * Math.PI)) + 250; float y1 = (float)(200 * Math.sin(rad * Math.PI)) + 250; float x2 = (fl...」)
float rad = (mFrameIndex / 10) % 3.6; float x1 = (float)(200 * Math.cos(rad * Math.PI)) + 250; float y1 = (float)(200 * Math.sin(rad * Math.PI)) + 250; float x2 = (float)(200 * Math.cos((rad + 0.4) * Math.PI)) + 250; float y2 = (float)(200 * Math.sin((rad + 0.4) * Math.PI)) + 250; float x3 = (float)(200 * Math.cos((rad + 0.8) * Math.PI)) + 250; float y3 = (float)(200 * Math.sin((rad + 0.8) * Math.PI)) + 250; float x4 = (float)(200 * Math.cos((rad + 1.2) * Math.PI)) + 250; float y4 = (float)(200 * Math.sin((rad + 1.2) * Math.PI)) + 250; float x5 = (float)(200 * Math.cos((rad + 1.6) * Math.PI)) + 250; float y5 = (float)(200 * Math.sin((rad + 1.6) * Math.PI)) + 250; Paint paint = new Paint(); paint.setColor(Color.argb(255, 25, 25, 25)); canvas.drawLine(x1, y1, x3, y3, paint); canvas.drawLine(x1, y1, x4, y4, paint); canvas.drawLine(x2, y2, x4, y4, paint); canvas.drawLine(x2, y2, x5, y5, paint); canvas.drawLine(x3, y3, x5, y5, paint);
