@antv/f2
Version:
Charts for mobile visualization.
72 lines (71 loc) • 2.9 kB
JavaScript
;
var _typeof = require("@babel/runtime/helpers/typeof");
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = _default;
var _siblings = require("./siblings.js");
var _accessors = require("../accessors.js");
var _constant = _interopRequireWildcard(require("../constant.js"));
function _getRequireWildcardCache(e) { if ("function" != typeof WeakMap) return null; var r = new WeakMap(), t = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(e) { return e ? t : r; })(e); }
function _interopRequireWildcard(e, r) { if (!r && e && e.__esModule) return e; if (null === e || "object" != _typeof(e) && "function" != typeof e) return { default: e }; var t = _getRequireWildcardCache(r); if (t && t.has(e)) return t.get(e); var n = { __proto__: null }, a = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var u in e) if ("default" !== u && {}.hasOwnProperty.call(e, u)) { var i = a ? Object.getOwnPropertyDescriptor(e, u) : null; i && (i.get || i.set) ? Object.defineProperty(n, u, i) : n[u] = e[u]; } return n.default = e, t && t.set(e, n), n; }
function defaultRadius(d) {
return Math.sqrt(d.value);
}
function _default() {
var radius = null,
dx = 1,
dy = 1,
padding = _constant.constantZero;
function pack(root) {
root.x = dx / 2, root.y = dy / 2;
if (radius) {
root.eachBefore(radiusLeaf(radius)).eachAfter(packChildren(padding, 0.5)).eachBefore(translateChild(1));
} else {
root.eachBefore(radiusLeaf(defaultRadius)).eachAfter(packChildren(_constant.constantZero, 1)).eachAfter(packChildren(padding, root.r / Math.min(dx, dy))).eachBefore(translateChild(Math.min(dx, dy) / (2 * root.r)));
}
return root;
}
pack.radius = function (x) {
return arguments.length ? (radius = (0, _accessors.optional)(x), pack) : radius;
};
pack.size = function (x) {
return arguments.length ? (dx = +x[0], dy = +x[1], pack) : [dx, dy];
};
pack.padding = function (x) {
return arguments.length ? (padding = typeof x === "function" ? x : (0, _constant.default)(+x), pack) : padding;
};
return pack;
}
function radiusLeaf(radius) {
return function (node) {
if (!node.children) {
node.r = Math.max(0, +radius(node) || 0);
}
};
}
function packChildren(padding, k) {
return function (node) {
if (children = node.children) {
var children,
i,
n = children.length,
r = padding(node) * k || 0,
e;
if (r) for (i = 0; i < n; ++i) children[i].r += r;
e = (0, _siblings.packEnclose)(children);
if (r) for (i = 0; i < n; ++i) children[i].r -= r;
node.r = e + r;
}
};
}
function translateChild(k) {
return function (node) {
var parent = node.parent;
node.r *= k;
if (parent) {
node.x = parent.x + k * node.x;
node.y = parent.y + k * node.y;
}
};
}