| 1 | export function containStroke(x0, y0, x1, y1, lineWidth, x, y) {
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| 2 | if (lineWidth === 0) {
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| 3 | return false;
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| 4 | }
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| 5 | var _l = lineWidth;
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| 6 | var _a = 0;
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| 7 | var _b = x0;
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| 8 | if ((y > y0 + _l && y > y1 + _l)
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| 9 | || (y < y0 - _l && y < y1 - _l)
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| 10 | || (x > x0 + _l && x > x1 + _l)
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| 11 | || (x < x0 - _l && x < x1 - _l)) {
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| 12 | return false;
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| 13 | }
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| 14 | if (x0 !== x1) {
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| 15 | _a = (y0 - y1) / (x0 - x1);
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| 16 | _b = (x0 * y1 - x1 * y0) / (x0 - x1);
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| 17 | }
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| 18 | else {
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| 19 | return Math.abs(x - x0) <= _l / 2;
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| 20 | }
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| 21 | var tmp = _a * x - y + _b;
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| 22 | var _s = tmp * tmp / (_a * _a + 1);
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| 23 | return _s <= _l / 2 * _l / 2;
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| 24 | }
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