@antv/f2
Version:
Charts for mobile visualization.
71 lines (70 loc) • 2.73 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 _interopRequireWildcard(e, t) { if ("function" == typeof WeakMap) var r = new WeakMap(), n = new WeakMap(); return (_interopRequireWildcard = function _interopRequireWildcard(e, t) { if (!t && e && e.__esModule) return e; var o, i, f = { __proto__: null, default: e }; if (null === e || "object" != _typeof(e) && "function" != typeof e) return f; if (o = t ? n : r) { if (o.has(e)) return o.get(e); o.set(e, f); } for (var _t in e) "default" !== _t && {}.hasOwnProperty.call(e, _t) && ((i = (o = Object.defineProperty) && Object.getOwnPropertyDescriptor(e, _t)) && (i.get || i.set) ? o(f, _t, i) : f[_t] = e[_t]); return f; })(e, t); }
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;
}
};
}