From b359730219637d02ae116a9bb79801bbead0b6f7 Mon Sep 17 00:00:00 2001
From: Bogdan Chadkin <trysound@yandex.ru>
Date: Tue, 24 Aug 2021 03:01:03 +0300
Subject: [PATCH] =?UTF-8?q?Drop=20unused=20b=C3=A9zier=20utilities?=
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---
 plugins/_path.js | 229 -----------------------------------------------
 1 file changed, 229 deletions(-)

diff --git a/plugins/_path.js b/plugins/_path.js
index 1d78fdd4..ea450168 100644
--- a/plugins/_path.js
+++ b/plugins/_path.js
@@ -172,235 +172,6 @@ const convertRelativeToAbsolute = (data) => {
   return newData;
 };
 
-/**
- * Compute Cubic Bézie bounding box.
- *
- * @see https://pomax.github.io/bezierinfo/
- *
- * @param {Float} xa
- * @param {Float} ya
- * @param {Float} xb
- * @param {Float} yb
- * @param {Float} xc
- * @param {Float} yc
- * @param {Float} xd
- * @param {Float} yd
- *
- * @return {Object}
- */
-exports.computeCubicBoundingBox = function (xa, ya, xb, yb, xc, yc, xd, yd) {
-  var minx = Number.POSITIVE_INFINITY,
-    miny = Number.POSITIVE_INFINITY,
-    maxx = Number.NEGATIVE_INFINITY,
-    maxy = Number.NEGATIVE_INFINITY,
-    ts,
-    t,
-    x,
-    y,
-    i;
-
-  // X
-  if (xa < minx) {
-    minx = xa;
-  }
-  if (xa > maxx) {
-    maxx = xa;
-  }
-  if (xd < minx) {
-    minx = xd;
-  }
-  if (xd > maxx) {
-    maxx = xd;
-  }
-
-  ts = computeCubicFirstDerivativeRoots(xa, xb, xc, xd);
-
-  for (i = 0; i < ts.length; i++) {
-    t = ts[i];
-
-    if (t >= 0 && t <= 1) {
-      x = computeCubicBaseValue(t, xa, xb, xc, xd);
-      // y = computeCubicBaseValue(t, ya, yb, yc, yd);
-
-      if (x < minx) {
-        minx = x;
-      }
-      if (x > maxx) {
-        maxx = x;
-      }
-    }
-  }
-
-  // Y
-  if (ya < miny) {
-    miny = ya;
-  }
-  if (ya > maxy) {
-    maxy = ya;
-  }
-  if (yd < miny) {
-    miny = yd;
-  }
-  if (yd > maxy) {
-    maxy = yd;
-  }
-
-  ts = computeCubicFirstDerivativeRoots(ya, yb, yc, yd);
-
-  for (i = 0; i < ts.length; i++) {
-    t = ts[i];
-
-    if (t >= 0 && t <= 1) {
-      // x = computeCubicBaseValue(t, xa, xb, xc, xd);
-      y = computeCubicBaseValue(t, ya, yb, yc, yd);
-
-      if (y < miny) {
-        miny = y;
-      }
-      if (y > maxy) {
-        maxy = y;
-      }
-    }
-  }
-
-  return {
-    minx: minx,
-    miny: miny,
-    maxx: maxx,
-    maxy: maxy,
-  };
-};
-
-// compute the value for the cubic bezier function at time=t
-function computeCubicBaseValue(t, a, b, c, d) {
-  var mt = 1 - t;
-
-  return (
-    mt * mt * mt * a + 3 * mt * mt * t * b + 3 * mt * t * t * c + t * t * t * d
-  );
-}
-
-// compute the value for the first derivative of the cubic bezier function at time=t
-function computeCubicFirstDerivativeRoots(a, b, c, d) {
-  var result = [-1, -1],
-    tl = -a + 2 * b - c,
-    tr = -Math.sqrt(-a * (c - d) + b * b - b * (c + d) + c * c),
-    dn = -a + 3 * b - 3 * c + d;
-
-  if (dn !== 0) {
-    result[0] = (tl + tr) / dn;
-    result[1] = (tl - tr) / dn;
-  }
-
-  return result;
-}
-
-/**
- * Compute Quadratic Bézier bounding box.
- *
- * @see https://pomax.github.io/bezierinfo/
- *
- * @param {Float} xa
- * @param {Float} ya
- * @param {Float} xb
- * @param {Float} yb
- * @param {Float} xc
- * @param {Float} yc
- *
- * @return {Object}
- */
-exports.computeQuadraticBoundingBox = function (xa, ya, xb, yb, xc, yc) {
-  var minx = Number.POSITIVE_INFINITY,
-    miny = Number.POSITIVE_INFINITY,
-    maxx = Number.NEGATIVE_INFINITY,
-    maxy = Number.NEGATIVE_INFINITY,
-    t,
-    x,
-    y;
-
-  // X
-  if (xa < minx) {
-    minx = xa;
-  }
-  if (xa > maxx) {
-    maxx = xa;
-  }
-  if (xc < minx) {
-    minx = xc;
-  }
-  if (xc > maxx) {
-    maxx = xc;
-  }
-
-  t = computeQuadraticFirstDerivativeRoot(xa, xb, xc);
-
-  if (t >= 0 && t <= 1) {
-    x = computeQuadraticBaseValue(t, xa, xb, xc);
-    // y = computeQuadraticBaseValue(t, ya, yb, yc);
-
-    if (x < minx) {
-      minx = x;
-    }
-    if (x > maxx) {
-      maxx = x;
-    }
-  }
-
-  // Y
-  if (ya < miny) {
-    miny = ya;
-  }
-  if (ya > maxy) {
-    maxy = ya;
-  }
-  if (yc < miny) {
-    miny = yc;
-  }
-  if (yc > maxy) {
-    maxy = yc;
-  }
-
-  t = computeQuadraticFirstDerivativeRoot(ya, yb, yc);
-
-  if (t >= 0 && t <= 1) {
-    // x = computeQuadraticBaseValue(t, xa, xb, xc);
-    y = computeQuadraticBaseValue(t, ya, yb, yc);
-
-    if (y < miny) {
-      miny = y;
-    }
-    if (y > maxy) {
-      maxy = y;
-    }
-  }
-
-  return {
-    minx: minx,
-    miny: miny,
-    maxx: maxx,
-    maxy: maxy,
-  };
-};
-
-// compute the value for the quadratic bezier function at time=t
-function computeQuadraticBaseValue(t, a, b, c) {
-  var mt = 1 - t;
-
-  return mt * mt * a + 2 * mt * t * b + t * t * c;
-}
-
-// compute the value for the first derivative of the quadratic bezier function at time=t
-function computeQuadraticFirstDerivativeRoot(a, b, c) {
-  var t = -1,
-    denominator = a - 2 * b + c;
-
-  if (denominator !== 0) {
-    t = (a - b) / denominator;
-  }
-
-  return t;
-}
-
 /**
  * Convert path array to string.
  *