Commit 6804a60f authored by Mike Bostock's avatar Mike Bostock
Browse files

Fix a bug with empty children arrays.

parent cd3d2360
......@@ -10,7 +10,7 @@ try {
d3_style_setProperty.call(this, name, value + "", priority);
};
}
d3 = {version: "2.3.1"}; // semver
d3 = {version: "2.3.2"}; // semver
var d3_array = d3_arraySlice; // conversion for NodeLists
function d3_arrayCopy(pseudoarray) {
......
......@@ -560,9 +560,9 @@ d3.layout.partition = function() {
node.y = node.depth * dy;
node.dx = dx;
node.dy = dy;
if (children) {
if (children && (n = children.length)) {
var i = -1,
n = children.length,
n,
c,
d;
dx = node.value ? dx / node.value : 0;
......@@ -576,9 +576,9 @@ d3.layout.partition = function() {
function depth(node) {
var children = node.children,
d = 0;
if (children) {
if (children && (n = children.length)) {
var i = -1,
n = children.length;
n;
while (++i < n) d = Math.max(d, depth(children[i]));
}
return 1 + d;
......@@ -1477,9 +1477,9 @@ d3.layout.tree = function() {
function secondWalk(node, x) {
node.x = node._tree.prelim + x;
var children = node.children;
if (children) {
if (children && (n = children.length)) {
var i = -1,
n = children.length;
n;
x += node._tree.mod;
while (++i < n) {
secondWalk(children[i], x);
......@@ -1584,18 +1584,21 @@ function d3_layout_treeSeparation(a, b) {
// }
function d3_layout_treeLeft(node) {
return node.children ? node.children[0] : node._tree.thread;
var children = node.children;
return children && children.length ? children[0] : node._tree.thread;
}
function d3_layout_treeRight(node) {
return node.children ? node.children[node.children.length - 1] : node._tree.thread;
var children = node.children,
n;
return children && (n = children.length) ? children[n - 1] : node._tree.thread;
}
function d3_layout_treeSearch(node, compare) {
var children = node.children;
if (children) {
if (children && (n = children.length)) {
var child,
n = children.length,
n,
i = -1;
while (++i < n) {
if (compare(child = d3_layout_treeSearch(children[i], compare), node) > 0) {
......@@ -1621,11 +1624,11 @@ function d3_layout_treeDeepest(a, b) {
function d3_layout_treeVisitAfter(node, callback) {
function visit(node, previousSibling) {
var children = node.children;
if (children) {
if (children && (n = children.length)) {
var child,
previousChild = null,
i = -1,
n = children.length;
n;
while (++i < n) {
child = children[i];
visit(child, previousChild);
......@@ -1693,57 +1696,61 @@ d3.layout.treemap = function() {
// Recursively arranges the specified node's children into squarified rows.
function squarify(node) {
if (!node.children) return;
var rect = pad(node),
row = [],
children = node.children.slice(), // copy-on-write
child,
best = Infinity, // the best row score so far
score, // the current row score
u = Math.min(rect.dx, rect.dy), // initial orientation
n;
scale(children, rect.dx * rect.dy / node.value);
row.area = 0;
while ((n = children.length) > 0) {
row.push(child = children[n - 1]);
row.area += child.area;
if ((score = worst(row, u)) <= best) { // continue with this orientation
children.pop();
best = score;
} else { // abort, and try a different orientation
row.area -= row.pop().area;
position(row, u, rect, false);
u = Math.min(rect.dx, rect.dy);
var children = node.children;
if (children && children.length) {
var rect = pad(node),
row = [],
remaining = children.slice(), // copy-on-write
child,
best = Infinity, // the best row score so far
score, // the current row score
u = Math.min(rect.dx, rect.dy), // initial orientation
n;
scale(remaining, rect.dx * rect.dy / node.value);
row.area = 0;
while ((n = remaining.length) > 0) {
row.push(child = remaining[n - 1]);
row.area += child.area;
if ((score = worst(row, u)) <= best) { // continue with this orientation
remaining.pop();
best = score;
} else { // abort, and try a different orientation
row.area -= row.pop().area;
position(row, u, rect, false);
u = Math.min(rect.dx, rect.dy);
row.length = row.area = 0;
best = Infinity;
}
}
if (row.length) {
position(row, u, rect, true);
row.length = row.area = 0;
best = Infinity;
}
children.forEach(squarify);
}
if (row.length) {
position(row, u, rect, true);
row.length = row.area = 0;
}
node.children.forEach(squarify);
}
// Recursively resizes the specified node's children into existing rows.
// Preserves the existing layout!
function stickify(node) {
if (!node.children) return;
var rect = pad(node),
children = node.children.slice(), // copy-on-write
child,
row = [];
scale(children, rect.dx * rect.dy / node.value);
row.area = 0;
while (child = children.pop()) {
row.push(child);
row.area += child.area;
if (child.z != null) {
position(row, child.z ? rect.dx : rect.dy, rect, !children.length);
row.length = row.area = 0;
var children = node.children;
if (children && children.length) {
var rect = pad(node),
remaining = children.slice(), // copy-on-write
child,
row = [];
scale(remaining, rect.dx * rect.dy / node.value);
row.area = 0;
while (child = remaining.pop()) {
row.push(child);
row.area += child.area;
if (child.z != null) {
position(row, child.z ? rect.dx : rect.dy, rect, !remaining.length);
row.length = row.area = 0;
}
}
children.forEach(stickify);
}
node.children.forEach(stickify);
}
// Computes the score for the specified row, as the worst aspect ratio.
......
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