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77 lines
2.2 KiB
77 lines
2.2 KiB
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class NetworkUtil {
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constructor() {}
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/**
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* Find the center position of the network considering the bounding boxes
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* @private
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*/
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static _getRange(allNodes, specificNodes = []) {
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var minY = 1e9, maxY = -1e9, minX = 1e9, maxX = -1e9, node;
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if (specificNodes.length > 0) {
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for (var i = 0; i < specificNodes.length; i++) {
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node = allNodes[specificNodes[i]];
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if (minX > node.shape.boundingBox.left) {
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minX = node.shape.boundingBox.left;
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}
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if (maxX < node.shape.boundingBox.right) {
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maxX = node.shape.boundingBox.right;
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}
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if (minY > node.shape.boundingBox.top) {
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minY = node.shape.boundingBox.top;
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} // top is negative, bottom is positive
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if (maxY < node.shape.boundingBox.bottom) {
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maxY = node.shape.boundingBox.bottom;
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} // top is negative, bottom is positive
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}
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}
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if (minX === 1e9 && maxX === -1e9 && minY === 1e9 && maxY === -1e9) {
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minY = 0, maxY = 0, minX = 0, maxX = 0;
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}
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return {minX: minX, maxX: maxX, minY: minY, maxY: maxY};
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}
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/**
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* Find the center position of the network
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* @private
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*/
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static _getRangeCore(allNodes, specificNodes = []) {
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var minY = 1e9, maxY = -1e9, minX = 1e9, maxX = -1e9, node;
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if (specificNodes.length > 0) {
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for (var i = 0; i < specificNodes.length; i++) {
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node = allNodes[specificNodes[i]];
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if (minX > node.x) {
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minX = node.x;
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}
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if (maxX < node.x) {
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maxX = node.x;
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}
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if (minY > node.y) {
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minY = node.y;
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} // top is negative, bottom is positive
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if (maxY < node.y) {
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maxY = node.y;
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} // top is negative, bottom is positive
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}
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}
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if (minX === 1e9 && maxX === -1e9 && minY === 1e9 && maxY === -1e9) {
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minY = 0, maxY = 0, minX = 0, maxX = 0;
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}
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return {minX: minX, maxX: maxX, minY: minY, maxY: maxY};
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}
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/**
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* @param {object} range = {minX: minX, maxX: maxX, minY: minY, maxY: maxY};
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* @returns {{x: number, y: number}}
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* @private
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*/
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static _findCenter(range) {
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return {x: (0.5 * (range.maxX + range.minX)),
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y: (0.5 * (range.maxY + range.minY))};
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}
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}
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export default NetworkUtil;
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