2021-05-08 13:51:19 -04:00
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<div id="app"></div>
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2021-05-11 06:26:18 -04:00
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2021-05-09 20:26:40 -04:00
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<script>
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2021-05-08 13:51:19 -04:00
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2021-05-09 20:26:40 -04:00
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var N =
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{
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ID:{
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Walk:0,
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Instance:0
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},
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Create(inMeta)
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{
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return {
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ID:{
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Walk:0,
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Instance:N.ID.Instance++
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},
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Meta:inMeta||{},
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Link:{}
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};
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},
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Connect(inNodeMajor, inNodeMinor, inKey, inUnique)
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{
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if(inUnique) // bail if the nodes are already connected
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{
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let check = N.Step(inNodeMajor, inKey, true);
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if(check)
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{
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if(check.indexOf(inNodeMinor) < 0)
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{
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return;
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}
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}
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}
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N.Step(inNodeMajor, inKey, true, true).push(inNodeMinor);
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N.Step(inNodeMinor, inKey, false, true).push(inNodeMajor);
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},
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Disconnect(inNodeMajor, inNodeMinor, inKey)
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{
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let remove = (inArray, inMatch) => inArray.findIndex( (inMember, inIndex, inArray) => (inMember === inMatch) ? inArray.splice(inIndex, 1) : false );
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if(inNodeMinor === null)
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{
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let check = N.Step(inNodeMajor, inKey);
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if(!check){ return; }
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check.forEach( inLoopNode =>
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{
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if(inLoopNode.Link[inKey].Get.length == 1)
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{
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// we're about to delete the last get reference on a minor node, just purge the key entirely
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delete inLoopNode.Link[inKey];
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}
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else
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{
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remove( inLoopNode.Link[inKey].Get, inNodeMajor);
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}
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});
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// we just wiped out all set, if get is empty we can purge the key from major
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if(inNodeMajor.Link[inKey].Get.length == 0)
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{
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delete inNodeMajor.Link[inKey];
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}
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return;
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}
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if(inNodeMajor === null)
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{
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inNodeMinor.Link[inKey].Get.forEach( inLoopNode =>
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{
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if(inLoopNode.Link[inKey].Set.length == 1)
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{
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delete inLoopNode.Link[inKey];
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}
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else
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{
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remove( inLoopNode.Link[inKey].Set, inNodeMinor);
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}
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});
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// we just wiped out all get, if set is empty we can purge the key from minor
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if(inNodeMinor.Link[inKey].Set.length == 0)
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{
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delete inNodeMinor.Link[inKey];
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}
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return;
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}
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if(inNodeMajor.Link[inKey].Set.length == 1)
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{
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delete inNodeMajor.Link[inKey];
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}
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else
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{
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remove(inNodeMajor.Link[inKey].Set, inNodeMinor);
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}
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if(inNodeMinor.Link[inKey].Get.length == 1)
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{
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delete inNodeMinor.Link[inKey];
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}
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else
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{
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remove(inNodeMinor.Link[inKey].Get, inNodeMajor);
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}
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},
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Step(inNode, inKey, inForward, inForceCreate)
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{
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let connectionGroup = inNode.Link[inKey];
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if(!connectionGroup)
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{
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if(inForceCreate)
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{
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inNode.Link[inKey] = connectionGroup = {Get:[], Set:[]};
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}
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else
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{
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return false;
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}
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}
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return (inForward === undefined || inForward === true) ? connectionGroup.Set : connectionGroup.Get;
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},
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Walk(inIterator, inNode, inKey, inForward, inTerminal)
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{
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let array = N.Step(inNode, inKey, inForward);
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if(!array.length && inTerminal)
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{
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return inTerminal(inNode);
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}
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for(let i=0; i<array.length; i++)
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{
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let next = array[i];
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if(next.ID.Walk !== N.ID.Walk)
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{
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next.ID.Walk = N.ID.Walk;
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let results = inIterator(next);
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if(results !== false)
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{
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N.Walk(inIterator, next, inKey, inForward, inTerminal);
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}
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}
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}
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},
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Path(inArray, inNode, inKey, inForward)
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{
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var current = inNode;
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var direction = inForward||true;
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for(let i=0; i<inArray.length; i++)
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{
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current = N.Step(current, inKey, direction)[inArray[i]];
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}
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return current;
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}
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};
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</script>
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<script>
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var Pivot =
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{
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Leaves:{},
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Root:N.Create({}),
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Init(inRows)
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{
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Pivot.Leaves = inRows.map(r => N.Create({Row:r}));
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Pivot.Init = ()=>{};
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},
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Pivot(inParent, inPivotIndicies, inSumIndicies, inDepth)
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{
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//arguments:
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// - a Node with leaf Nodes temporarily stored in its Meta.Leaves
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// - where each leaf Node has a row of table data in it's Meta.Row
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// - a list of columns to pivot on
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// - a list of columns to sum
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// - optional traversal depth, defaults to 0
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let depth = inDepth||0;
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let uniques = {};
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inParent.Meta.Leaves.forEach((inLeaf)=>
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{
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let row = inLeaf.Meta.Row; // shorthand for the raw "CSV" row in the leaf Node's Meta
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let value = row[inPivotIndicies[depth]]; // get the pivot column
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let match = uniques[value]; // check in the uniques list if this pivot column exists
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if(!match)
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{
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// if not, store a value under that key that will be the meta object for a new child
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let clone = row.map(r=>null);
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inSumIndicies.forEach((inSumIndex, inIndex, inArray)=>
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{
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clone[inSumIndex] = row[inSumIndex]
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});
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match = uniques[value] = {
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Label:value,
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Row:clone,
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Leaves:[]
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};
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// grow a child off of the parent using the meta object
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N.Connect(inParent, N.Create(match), "Hierarchy");
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}
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else
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{
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// if a match does exist, sum the appropriate columns
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inSumIndicies.forEach((inSumIndex) => match.Row[inSumIndex] += row[inSumIndex]);
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}
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// move the leaves into the child
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match.Leaves.push(inLeaf);
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});
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delete inParent.Meta.Leaves;
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var iterator;
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if(depth >= inPivotIndicies.length-1)
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{
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iterator = inLastBranch =>
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{
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inLastBranch.Meta.Leaves.forEach( inLeaf =>
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{
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// collect modifiers effecting leaves
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let modifiers = [];
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let check = N.Step(inLeaf, "ModifyAt", false);
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if(check)
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{
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modifiers = modifiers.concat(check);
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}
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check = N.Step(inLeaf, "ModifyDown", false);
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if(check)
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{
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modifiers = modifiers.concat(check);
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}
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if(modifiers.length)
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{
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// apply them to the branch
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inLastBranch.ID.Walk = N.ID.Walk;
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modifiers.forEach( inModifier => N.Connect(inModifier, inLastBranch, "ModifyUp") )
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// also walk them up, but with a unique check connection
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N.Walk( inNode=>
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{
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modifiers.forEach( inModifier => N.Connect(inModifier, inNode, "ModifyUp", true) )
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}
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, inLastBranch, "Hierarchy", false);
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}
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// lastly connect the leaf to the branch
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N.Connect(inLastBranch, inLeaf, "Hierarchy");
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});
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delete inLastBranch.Meta.Leaves;
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}
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}
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else
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{
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iterator = child => Pivot.Pivot(child, inPivotIndicies, inSumIndicies, depth+1);
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}
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N.Step(inParent, "Hierarchy").forEach(iterator);
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return inParent;
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},
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Create(inPivotIndicies, inSumIndicies)
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{
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N.ID.Walk++;
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let pivotRoot = N.Create({Leaves:Pivot.Leaves});
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N.Connect(Pivot.Root, pivotRoot, "Pivot");
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return Pivot.Pivot(pivotRoot, inPivotIndicies, inSumIndicies);
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},
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Delete(inRoot)
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{
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N.ID.Walk++;
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let scan = n =>
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{
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};
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N.Walk(scan, inRoot, "Hierarchy")
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},
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Modify(inNode)
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{
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let modified = N.Create({});
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N.ID.Walk++;
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if(N.Step(inNode, "Hierarchy").length)
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{
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N.Walk(()=>{}, inNode, "Hierarchy", false, (inRoot)=>
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{
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N.Connect(inRoot, modified, "Modifier");
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});
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}
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else
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{
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N.Connect(Pivot.Root, modified, "Modifier");
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}
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let leaves = [];
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let gatherUp = n => N.Connect(modified, n, "ModifyUp");
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let gatherDown = n =>
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{
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N.Connect(modified, n, "ModifyDown");
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N.Step(n, "Hierarchy").length == 0 ? leaves.push(n) : null;
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};
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let gatherOut = n => N.Connect(modified, n, "ModifyOut");
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N.ID.Walk++;
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inNode.ID.Walk = N.ID.Walk;
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N.Connect(modified, inNode, "ModifyAt");
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N.Walk(gatherUp, inNode, "Hierarchy", false);
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N.Walk(gatherDown, inNode, "Hierarchy");
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leaves.forEach(leaf=>N.Walk(gatherOut, leaf, "Hierarchy", false));
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return modified;
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2021-05-09 20:26:40 -04:00
|
|
|
},
|
|
|
|
Unmodify(inNode)
|
2021-05-09 14:19:13 -04:00
|
|
|
{
|
2021-05-14 06:47:30 -04:00
|
|
|
let modifier = N.Step(inNode, "ModifyAt", false)[0];
|
|
|
|
|
|
|
|
N.Disconnect(modifier, null, "ModifyUp");
|
|
|
|
N.Disconnect(modifier, null, "ModifyDown");
|
|
|
|
N.Disconnect(modifier, null, "ModifyOut");
|
|
|
|
N.Disconnect(modifier, null, "ModifyAt");
|
2021-05-15 07:30:52 -04:00
|
|
|
N.Disconnect(null, modifier, "Modifier");
|
2021-05-09 14:19:13 -04:00
|
|
|
}
|
|
|
|
};
|
2021-05-09 20:26:40 -04:00
|
|
|
</script>
|
2021-05-09 14:19:13 -04:00
|
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|
2021-05-09 20:26:40 -04:00
|
|
|
<script type="module">
|
2021-05-09 14:19:13 -04:00
|
|
|
|
2021-05-14 07:11:23 -04:00
|
|
|
import { h, render, createContext, Fragment } from 'https://cdn.skypack.dev/preact';
|
|
|
|
import { useReducer } from 'https://cdn.skypack.dev/preact/hooks';
|
2021-05-11 06:26:18 -04:00
|
|
|
import { css, cx } from 'https://cdn.skypack.dev/@emotion/css';
|
2021-05-09 14:19:13 -04:00
|
|
|
|
2021-05-11 06:26:18 -04:00
|
|
|
Pivot.Init([
|
2021-05-08 13:51:19 -04:00
|
|
|
["#1", "a", "long", 1],
|
|
|
|
["#2", "b", "long", 2],
|
|
|
|
["#3", "b", "short", 2],
|
|
|
|
["#4", "a", "long", 3],
|
|
|
|
["#5", "b", "short", 1],
|
|
|
|
["#6", "a", "short", 0],
|
|
|
|
["#7", "b", "short", 7],
|
2021-05-08 13:21:43 -04:00
|
|
|
]);
|
2021-05-15 07:30:52 -04:00
|
|
|
Pivot.Create([1, 2], [3]);
|
2021-05-11 23:18:08 -04:00
|
|
|
|
2021-05-14 07:11:23 -04:00
|
|
|
let AddNewPivot = () =>
|
|
|
|
{
|
2021-05-15 07:30:52 -04:00
|
|
|
Pivot.Create([2], [3]);
|
|
|
|
Render();
|
|
|
|
};
|
2021-05-11 23:18:08 -04:00
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|
|
2021-05-12 07:17:08 -04:00
|
|
|
let ElNode = ({node, depth}) =>
|
2021-05-08 13:51:19 -04:00
|
|
|
{
|
2021-05-12 07:17:08 -04:00
|
|
|
let nodeBase = css`
|
|
|
|
position:relative;
|
|
|
|
padding:0;
|
|
|
|
margin:0;
|
|
|
|
border-top:1px solid lightgrey;
|
|
|
|
|
|
|
|
.Table
|
2021-05-11 06:26:18 -04:00
|
|
|
{
|
2021-05-12 07:17:08 -04:00
|
|
|
display:inline-block;
|
|
|
|
text-align:right;
|
|
|
|
}
|
|
|
|
.Cell
|
|
|
|
{
|
|
|
|
width:50px;
|
|
|
|
display:inline-block;
|
|
|
|
padding:10px;
|
|
|
|
}
|
|
|
|
`;
|
2021-05-13 19:54:42 -04:00
|
|
|
let label = css`
|
|
|
|
display:inline-block;
|
|
|
|
width:200px;
|
|
|
|
|
|
|
|
&::before
|
|
|
|
{
|
|
|
|
content:" ";
|
|
|
|
display:inline-block;
|
|
|
|
width:${depth*15}px;
|
|
|
|
}
|
|
|
|
.Modify
|
|
|
|
{
|
|
|
|
float:right;
|
|
|
|
}
|
|
|
|
`;
|
|
|
|
|
2021-05-14 06:47:30 -04:00
|
|
|
let icon = cx(
|
2021-05-13 19:54:42 -04:00
|
|
|
{
|
2021-05-14 06:47:30 -04:00
|
|
|
[css`
|
|
|
|
display:inline-block;
|
|
|
|
width:0px;
|
|
|
|
height:0px;
|
|
|
|
border:7px solid white;` ]: true,
|
2021-05-13 19:54:42 -04:00
|
|
|
[css`border-bottom-color:lightblue;`]: N.Step(node, "ModifyUp" ),
|
|
|
|
[css`border-top-color:orange;` ]: N.Step(node, "ModifyDown"),
|
|
|
|
[css`border-left-color:grey;` ]: N.Step(node, "ModifyOut" ),
|
|
|
|
[css`border-right-color:red;` ]: N.Step(node, "ModifyAt" )
|
|
|
|
},
|
|
|
|
);
|
2021-05-09 14:19:13 -04:00
|
|
|
|
2021-05-14 06:47:30 -04:00
|
|
|
let buttonModify = h("span", {
|
|
|
|
className:"Icon Modify Add",
|
|
|
|
onClick:e=>
|
|
|
|
{
|
|
|
|
Pivot.Modify(node);
|
|
|
|
Render();
|
|
|
|
}
|
|
|
|
}, "Modify");
|
|
|
|
|
|
|
|
let buttonUnmodify = h("span", {
|
|
|
|
className:"Icon Modify remove",
|
|
|
|
onClick:e=>
|
|
|
|
{
|
|
|
|
Pivot.Unmodify(node);
|
|
|
|
Render();
|
|
|
|
}
|
|
|
|
}, "Unmodify");
|
|
|
|
|
2021-05-12 19:08:52 -04:00
|
|
|
return h("div", {className:"Node"}, [
|
2021-05-13 19:54:42 -04:00
|
|
|
h("div", {className:cx(nodeBase, "Upper")}, [
|
|
|
|
h("div", {className:label}, [
|
|
|
|
h("span", {className:"Icon Expand"}, "+"),
|
|
|
|
h("span", {className:"Name"}, (node.Meta.Label || "a node")+" "+node.ID.Walk),
|
2021-05-14 06:47:30 -04:00
|
|
|
h("span", {className: icon}),
|
|
|
|
N.Step(node, "ModifyAt") ? buttonUnmodify : buttonModify
|
2021-05-13 19:54:42 -04:00
|
|
|
] ),
|
2021-05-12 07:17:08 -04:00
|
|
|
h("div", {className:"Table"}, (node.Meta.Row || []).map( cell => h("div", {className:"Cell"}, cell)) )
|
|
|
|
]),
|
|
|
|
h("div", {className:"Nodes"}, N.Step(node, "Hierarchy").map(child=>h(ElNode, {node:child, depth:depth+1})) )
|
|
|
|
]);
|
2021-05-14 06:47:30 -04:00
|
|
|
};
|
2021-05-08 15:32:40 -04:00
|
|
|
let ElPivot = ({pivot}) =>
|
2021-05-15 07:30:52 -04:00
|
|
|
{
|
2021-05-12 07:17:08 -04:00
|
|
|
return h("div", {style:{display:"inline-block", width:"500px"}}, [
|
2021-05-15 07:30:52 -04:00
|
|
|
h(ElModifiers, {node:pivot}),
|
2021-05-12 07:17:08 -04:00
|
|
|
h(ElNode, {node:pivot, depth:0})
|
2021-05-08 15:32:40 -04:00
|
|
|
]);
|
2021-05-14 06:47:30 -04:00
|
|
|
};
|
2021-05-15 07:30:52 -04:00
|
|
|
let ElModifiers = ({node}) =>
|
|
|
|
{
|
|
|
|
let modifiers = N.Step(node, "Modifier") || [];
|
|
|
|
|
|
|
|
return h("div", null, [
|
|
|
|
h("strong", null, "modifiers"),
|
|
|
|
...modifiers.map( m => h("span", {onClick:e=>
|
|
|
|
{
|
|
|
|
Pivot.Unmodify(N.Step(m, "ModifyAt")[0]);
|
|
|
|
Render();
|
|
|
|
}
|
|
|
|
}, "modifier"))
|
|
|
|
]);
|
|
|
|
};
|
2021-05-14 06:47:30 -04:00
|
|
|
let ElRoot = props =>
|
2021-05-08 13:51:19 -04:00
|
|
|
{
|
2021-05-13 19:54:42 -04:00
|
|
|
return h("div", null, [
|
|
|
|
h("h3", null, "tree view"),
|
2021-05-15 07:30:52 -04:00
|
|
|
h(ElModifiers, {node:Pivot.Root}),
|
2021-05-14 07:11:23 -04:00
|
|
|
h("button", { onClick:e=>
|
|
|
|
{
|
|
|
|
AddNewPivot();
|
|
|
|
}
|
|
|
|
}, "add new pivot"),
|
2021-05-15 07:30:52 -04:00
|
|
|
...N.Step(Pivot.Root, "Pivot").map(pivot=>h(ElPivot, {pivot}))
|
2021-05-13 19:54:42 -04:00
|
|
|
])
|
2021-05-08 13:51:19 -04:00
|
|
|
};
|
2021-05-14 06:47:30 -04:00
|
|
|
let Render = () => render(h(ElRoot), document.querySelector("#app"));
|
|
|
|
Render();
|
2021-05-08 13:51:19 -04:00
|
|
|
|
2021-05-08 13:21:43 -04:00
|
|
|
</script>
|