add lisp packages

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2020-12-05 21:29:49 +01:00
parent 85e20365ae
commit a6e2395755
7272 changed files with 1363243 additions and 0 deletions

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// https://d3js.org/d3-polygon/ v1.0.6 Copyright 2019 Mike Bostock
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
typeof define === 'function' && define.amd ? define(['exports'], factory) :
(global = global || self, factory(global.d3 = global.d3 || {}));
}(this, function (exports) { 'use strict';
function area(polygon) {
var i = -1,
n = polygon.length,
a,
b = polygon[n - 1],
area = 0;
while (++i < n) {
a = b;
b = polygon[i];
area += a[1] * b[0] - a[0] * b[1];
}
return area / 2;
}
function centroid(polygon) {
var i = -1,
n = polygon.length,
x = 0,
y = 0,
a,
b = polygon[n - 1],
c,
k = 0;
while (++i < n) {
a = b;
b = polygon[i];
k += c = a[0] * b[1] - b[0] * a[1];
x += (a[0] + b[0]) * c;
y += (a[1] + b[1]) * c;
}
return k *= 3, [x / k, y / k];
}
// Returns the 2D cross product of AB and AC vectors, i.e., the z-component of
// the 3D cross product in a quadrant I Cartesian coordinate system (+x is
// right, +y is up). Returns a positive value if ABC is counter-clockwise,
// negative if clockwise, and zero if the points are collinear.
function cross(a, b, c) {
return (b[0] - a[0]) * (c[1] - a[1]) - (b[1] - a[1]) * (c[0] - a[0]);
}
function lexicographicOrder(a, b) {
return a[0] - b[0] || a[1] - b[1];
}
// Computes the upper convex hull per the monotone chain algorithm.
// Assumes points.length >= 3, is sorted by x, unique in y.
// Returns an array of indices into points in left-to-right order.
function computeUpperHullIndexes(points) {
var n = points.length,
indexes = [0, 1],
size = 2;
for (var i = 2; i < n; ++i) {
while (size > 1 && cross(points[indexes[size - 2]], points[indexes[size - 1]], points[i]) <= 0) --size;
indexes[size++] = i;
}
return indexes.slice(0, size); // remove popped points
}
function hull(points) {
if ((n = points.length) < 3) return null;
var i,
n,
sortedPoints = new Array(n),
flippedPoints = new Array(n);
for (i = 0; i < n; ++i) sortedPoints[i] = [+points[i][0], +points[i][1], i];
sortedPoints.sort(lexicographicOrder);
for (i = 0; i < n; ++i) flippedPoints[i] = [sortedPoints[i][0], -sortedPoints[i][1]];
var upperIndexes = computeUpperHullIndexes(sortedPoints),
lowerIndexes = computeUpperHullIndexes(flippedPoints);
// Construct the hull polygon, removing possible duplicate endpoints.
var skipLeft = lowerIndexes[0] === upperIndexes[0],
skipRight = lowerIndexes[lowerIndexes.length - 1] === upperIndexes[upperIndexes.length - 1],
hull = [];
// Add upper hull in right-to-l order.
// Then add lower hull in left-to-right order.
for (i = upperIndexes.length - 1; i >= 0; --i) hull.push(points[sortedPoints[upperIndexes[i]][2]]);
for (i = +skipLeft; i < lowerIndexes.length - skipRight; ++i) hull.push(points[sortedPoints[lowerIndexes[i]][2]]);
return hull;
}
function contains(polygon, point) {
var n = polygon.length,
p = polygon[n - 1],
x = point[0], y = point[1],
x0 = p[0], y0 = p[1],
x1, y1,
inside = false;
for (var i = 0; i < n; ++i) {
p = polygon[i], x1 = p[0], y1 = p[1];
if (((y1 > y) !== (y0 > y)) && (x < (x0 - x1) * (y - y1) / (y0 - y1) + x1)) inside = !inside;
x0 = x1, y0 = y1;
}
return inside;
}
function length(polygon) {
var i = -1,
n = polygon.length,
b = polygon[n - 1],
xa,
ya,
xb = b[0],
yb = b[1],
perimeter = 0;
while (++i < n) {
xa = xb;
ya = yb;
b = polygon[i];
xb = b[0];
yb = b[1];
xa -= xb;
ya -= yb;
perimeter += Math.sqrt(xa * xa + ya * ya);
}
return perimeter;
}
exports.polygonArea = area;
exports.polygonCentroid = centroid;
exports.polygonContains = contains;
exports.polygonHull = hull;
exports.polygonLength = length;
Object.defineProperty(exports, '__esModule', { value: true });
}));

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// https://d3js.org/d3-polygon/ v1.0.6 Copyright 2019 Mike Bostock
!function(n,e){"object"==typeof exports&&"undefined"!=typeof module?e(exports):"function"==typeof define&&define.amd?define(["exports"],e):e((n=n||self).d3=n.d3||{})}(this,function(n){"use strict";function e(n,e){return n[0]-e[0]||n[1]-e[1]}function r(n){for(var e,r,t,o=n.length,f=[0,1],u=2,l=2;l<o;++l){for(;u>1&&(e=n[f[u-2]],r=n[f[u-1]],t=n[l],(r[0]-e[0])*(t[1]-e[1])-(r[1]-e[1])*(t[0]-e[0])<=0);)--u;f[u++]=l}return f.slice(0,u)}n.polygonArea=function(n){for(var e,r=-1,t=n.length,o=n[t-1],f=0;++r<t;)e=o,o=n[r],f+=e[1]*o[0]-e[0]*o[1];return f/2},n.polygonCentroid=function(n){for(var e,r,t=-1,o=n.length,f=0,u=0,l=n[o-1],i=0;++t<o;)e=l,l=n[t],i+=r=e[0]*l[1]-l[0]*e[1],f+=(e[0]+l[0])*r,u+=(e[1]+l[1])*r;return[f/(i*=3),u/i]},n.polygonContains=function(n,e){for(var r,t,o=n.length,f=n[o-1],u=e[0],l=e[1],i=f[0],g=f[1],h=!1,a=0;a<o;++a)r=(f=n[a])[0],(t=f[1])>l!=g>l&&u<(i-r)*(l-t)/(g-t)+r&&(h=!h),i=r,g=t;return h},n.polygonHull=function(n){if((o=n.length)<3)return null;var t,o,f=new Array(o),u=new Array(o);for(t=0;t<o;++t)f[t]=[+n[t][0],+n[t][1],t];for(f.sort(e),t=0;t<o;++t)u[t]=[f[t][0],-f[t][1]];var l=r(f),i=r(u),g=i[0]===l[0],h=i[i.length-1]===l[l.length-1],a=[];for(t=l.length-1;t>=0;--t)a.push(n[f[l[t]][2]]);for(t=+g;t<i.length-h;++t)a.push(n[f[i[t]][2]]);return a},n.polygonLength=function(n){for(var e,r,t=-1,o=n.length,f=n[o-1],u=f[0],l=f[1],i=0;++t<o;)e=u,r=l,e-=u=(f=n[t])[0],r-=l=f[1],i+=Math.sqrt(e*e+r*r);return i},Object.defineProperty(n,"__esModule",{value:!0})});