Draw Circle Wey Round Well-Well

• How round e be: 100% minus how far your line waka comot from the circle wey fit am best, on average, as part of that circle radius. If your line dey shake by 2% on average, your score na 98%.
• The colors for your line: green where the line dey follow the circle, pass yellow reach red where e waka far comot.
• The circle with broken line: na the circle wey fit your drawing best. The closer your line follow am, the higher your score.
• Your best score: na your highest score for this browser. E dey keep am separate for touch and mouse, because finger and mouse dey draw very different.
• Direction: clockwise or counterclockwise. Most people for US dey draw counterclockwise; for Japan, most dey draw clockwise [1].

1. Draw. Put your finger (or mouse button) down anywhere, then draw one circle round the dot with one stroke.
2. Watch as e dey happen. After you don draw part of the circle, the roundness score go show for the middle and the line color go change.
3. Lift. When you finish, the circle wey fit your drawing best go show with broken line, and dem go score your drawing.

For drawing to count, e must go at least 320° round, end near where e start, big reach (radius at least 15% of the drawing area width), and take less than 30 seconds. Abeg draw one loop only. We dey fit circle to your points with least squares, then measure the average distance between them and the circle. Dem dey compare finger circles only with other finger circles.

To draw circle, your shoulder, elbow, wrist and fingers must work together while the movement direction dey change all the time. Your hand dey naturally speed up and slow down with the curve [2], and every speed change fit make the line waka outward or inward. For phone, your finger dey cover the line wey you dey draw too. Mouse dey move your whole arm, and na why mouse circles and finger circles get different scores.

• Draw am bigger, use your whole arm. Small circles wey na only fingers draw dey shake more.
• Keep steady speed. No draw too slow: very slow drawing dey make hand shake.
• Look the dot for center, no be the line. The main work na to keep the same distance from the center.
• Close the loop gently. Plenty circles lose points for the end, where people rush to meet the starting point.

The circle test na fun challenge for hand control. Your score depend on your device, screen size, whether you use finger, pen or mouse, and practice. E no be medical test or tremor test; doctors dey use other drawing tasks, like spiral, for that [8]. The direction wey you draw no talk anything about your health.