sector.js(файл создан)
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| 1 | + | function getSectorPath(centre, rIn, rOut, startDeg, delta) { | |
| 2 | + | const startOut = { | |
| 3 | + | x: centre.x + rOut * Math.cos(startDeg), | |
| 4 | + | y: centre.y + rOut * Math.sin(startDeg) | |
| 5 | + | }; | |
| 6 | + | const endOut = { | |
| 7 | + | x: centre.x + rOut * Math.cos(startDeg + delta), | |
| 8 | + | y: centre.y + rOut * Math.sin(startDeg + delta) | |
| 9 | + | }; | |
| 10 | + | const startIn = { | |
| 11 | + | x: centre.x + rIn * Math.cos(startDeg + delta), | |
| 12 | + | y: centre.y + rIn * Math.sin(startDeg + delta) | |
| 13 | + | }; | |
| 14 | + | const endIn = { | |
| 15 | + | x: centre.x + rIn * Math.cos(startDeg), | |
| 16 | + | y: centre.y + rIn * Math.sin(startDeg) | |
| 17 | + | }; | |
| 18 | + | const largeArc = delta > 180 ? 1 : 0; | |
| 19 | + | ||
| 20 | + | return [ | |
| 21 | + | `M${startOut.x},${startOut.y}`, `A${rOut},${rOut}`, '0', | |
| 22 | + | `${largeArc},1`, `${endOut.x},${endOut.y}`, | |
| 23 | + | `L${startIn.x},${startIn.y}`, | |
| 24 | + | `A${rIn},${rIn}`, '0', `${largeArc},0`, | |
| 25 | + | `${endIn.x},${endIn.y}`, | |
| 26 | + | `L${startOut.x},${startOut.y}`, 'Z', | |
| 27 | + | ].join(' '); | |
| 28 | + | } | |
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