DMleadgen
46d973904b
Next.js website for Rocky Mountain Vending company featuring: - Product catalog with Stripe integration - Service areas and parts pages - Admin dashboard with Clerk authentication - SEO optimized pages with JSON-LD structured data Co-authored-by: Cursor <cursoragent@cursor.com>
139 lines
No EOL
3.4 KiB
Text
139 lines
No EOL
3.4 KiB
Text
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.monotoneX = monotoneX;
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exports.monotoneY = monotoneY;
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function sign(x) {
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return x < 0 ? -1 : 1;
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} // Calculate the slopes of the tangents (Hermite-type interpolation) based on
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// the following paper: Steffen, M. 1990. A Simple Method for Monotonic
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// Interpolation in One Dimension. Astronomy and Astrophysics, Vol. 239, NO.
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// NOV(II), P. 443, 1990.
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function slope3(that, x2, y2) {
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var h0 = that._x1 - that._x0,
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h1 = x2 - that._x1,
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s0 = (that._y1 - that._y0) / (h0 || h1 < 0 && -0),
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s1 = (y2 - that._y1) / (h1 || h0 < 0 && -0),
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p = (s0 * h1 + s1 * h0) / (h0 + h1);
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return (sign(s0) + sign(s1)) * Math.min(Math.abs(s0), Math.abs(s1), 0.5 * Math.abs(p)) || 0;
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} // Calculate a one-sided slope.
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function slope2(that, t) {
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var h = that._x1 - that._x0;
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return h ? (3 * (that._y1 - that._y0) / h - t) / 2 : t;
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} // According to https://en.wikipedia.org/wiki/Cubic_Hermite_spline#Representations
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// "you can express cubic Hermite interpolation in terms of cubic Bézier curves
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// with respect to the four values p0, p0 + m0 / 3, p1 - m1 / 3, p1".
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function point(that, t0, t1) {
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var x0 = that._x0,
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y0 = that._y0,
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x1 = that._x1,
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y1 = that._y1,
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dx = (x1 - x0) / 3;
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that._context.bezierCurveTo(x0 + dx, y0 + dx * t0, x1 - dx, y1 - dx * t1, x1, y1);
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}
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function MonotoneX(context) {
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this._context = context;
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}
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MonotoneX.prototype = {
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areaStart: function () {
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this._line = 0;
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},
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areaEnd: function () {
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this._line = NaN;
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},
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lineStart: function () {
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this._x0 = this._x1 = this._y0 = this._y1 = this._t0 = NaN;
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this._point = 0;
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},
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lineEnd: function () {
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switch (this._point) {
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case 2:
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this._context.lineTo(this._x1, this._y1);
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break;
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case 3:
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point(this, this._t0, slope2(this, this._t0));
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break;
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}
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if (this._line || this._line !== 0 && this._point === 1) this._context.closePath();
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this._line = 1 - this._line;
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},
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point: function (x, y) {
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var t1 = NaN;
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x = +x, y = +y;
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if (x === this._x1 && y === this._y1) return; // Ignore coincident points.
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switch (this._point) {
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case 0:
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this._point = 1;
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this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y);
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break;
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case 1:
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this._point = 2;
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break;
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case 2:
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this._point = 3;
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point(this, slope2(this, t1 = slope3(this, x, y)), t1);
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break;
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default:
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point(this, this._t0, t1 = slope3(this, x, y));
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break;
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}
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this._x0 = this._x1, this._x1 = x;
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this._y0 = this._y1, this._y1 = y;
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this._t0 = t1;
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}
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};
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function MonotoneY(context) {
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this._context = new ReflectContext(context);
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}
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(MonotoneY.prototype = Object.create(MonotoneX.prototype)).point = function (x, y) {
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MonotoneX.prototype.point.call(this, y, x);
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};
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function ReflectContext(context) {
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this._context = context;
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}
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ReflectContext.prototype = {
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moveTo: function (x, y) {
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this._context.moveTo(y, x);
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},
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closePath: function () {
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this._context.closePath();
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},
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lineTo: function (x, y) {
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this._context.lineTo(y, x);
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},
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bezierCurveTo: function (x1, y1, x2, y2, x, y) {
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this._context.bezierCurveTo(y1, x1, y2, x2, y, x);
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}
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};
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function monotoneX(context) {
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return new MonotoneX(context);
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}
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function monotoneY(context) {
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return new MonotoneY(context);
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} |