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Sou-Des-Use-Con.jsp
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<!DOCTYPE HTML>
<%@include file="connectionString.jsp"%>
<%@page import="java.sql.DriverManager"%>
<%@page import="java.sql.Statement"%>
<%@page import="java.sql.ResultSet"%>
<%@page import="java.sql.Connection"%>
<%@ page import="java.io.*"%>
<%@ page import="java.util.*"%>
<html>
<head>
<title>Graph</title>
<script type="text/javascript">
var canDraw = false;
var loadDone = false;
</script>
<style>
body {
margin: 0;
padding: 0;
overflow: hidden;
}
p {
text-align: center;
overflow: overlay;
position: relative;
}
body {
overflow-y: scroll;
-webkit-touch-callout: none;
-webkit-user-select: none;
-khtml-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
background-image: url('bodyBG.jpg');
background-repeat: no-repeat;
}
#plan {
scrollbar: yes;
width: 700px;
height: 600px;
align: center;
/* background-image: url('kresit_1_Floor_plan.png'); */
background-repeat: no-repeat;
background-position: center;
border-size: 3px;
border-style: solid;
border-color: brown;
align: center;
width: 700px;
}
#toolbox {
position: absolute;
bottom: 0;
left: 0;
margin-bottom: 0.5em;
margin-left: 1em;
border: 2px solid #EEEEEE;
border-radius: 5px;
padding: 1em;
z-index: 5;
}
#toolbox input {
width: 30px;
opacity: 0.4;
}
#toolbox input:hover {
opacity: 1;
cursor: pointer;
}
#hidden-file-upload {
display: none;
}
.conceptG text {
pointer-events: none;
}
marker {
fill: #333;
}
g.conceptG circle {
fill: gray;
}
g.conceptG:hover circle {
stroke-width: 8px;
stroke: red;
stroke-opacity: 0.2;
}
g.selected circle {
fill: magenta;
}
g.selected:hover circle {
stroke: magenta;
stroke-width: 8px;
stroke-opacity: 0.2;
}
#narrow {
float: right;
width: 200px;
background: lightblue;
}
#wide {
float: left;
width: calc(100% - 200px);
background: lightgreen;
}
path.link {
fill: pink;
stroke: gray;
stroke-width: 6px;
cursor: default;
}
path.link:hover {
stroke: black;
}
g.connect-node circle {
fill: #BEFFFF;
}
path.link.hidden {
stroke-width: 0;
}
#parent_div_2 {
width: 100px;
height: 100px;
border: 1px solid red;
margin-right: 10px;
float: left;
}
path.link.selected {
stroke: rgb(229, 172, 247);
}
</style>
<script type="text/javascript">
var imageArray = [ "kresit_0_Floor_plan.png", "kresit_1_Floor_plan.png",
"kresit_2_Floor_plan.png", "kresit_3_Floor_plan.png",
"kresit_4_Floor_plan.png" ];
function changeFloor() {
var Index = menuForm.select1.selectedIndex;
plan.style.backgroundImage = 'url(' + imageArray[Index] + ')';
}
</script>
</head>
<body onFocus="parent_disable();" onclick="parent_disable();">
<div id="wide">
<input type="button" value="Load" id="upload-input" /> <input
type="button" value="Source" id="source-node" /> <input
type="button" value="Destination" id="dest-node" /> <input
type="button" value="Rescue Centre" id="rescue" />
</div>
<div style="width: 1100px; margin: 0 auto;">
<form id="menuForm">
<select id="select1" name="floors ">
<option value="0">Floor 0</option>
<option value="1">Floor 1</option>
<option value="2">Floor 2</option>
<option value="3">Floor 3</option>
<option value="4">Floor 4</option>
</select> <input type="button" onclick="changeFloor();" value="Load" />
</form>
</div>
<div id="plan" style="width: 700px; margin: 0 auto;">
<script src="//d3js.org/d3.v3.js" charset="utf-8"></script>
<script src="//cdn.jsdelivr.net/filesaver.js/0.1/FileSaver.min.js"></script>
<script>
document.onload = (function(d3, saveAs, Blob, undefined) {
"use strict";
// define graphcreator object
var GraphCreator = function(svg, nodes, edges) {
var thisGraph = this;
thisGraph.idct = 0;thisGraph.cdct = 0;
function reset(){
thisGraph.deleteGraph(true);
<%connectionString cs = new connectionString();
String url = cs.url;
String username = cs.username;
String password = cs.password;
try {
Class.forName("org.postgresql.Driver");
} catch (ClassNotFoundException e) {
System.out.println("Where is your PostgreSQL JDBC Driver? " + "Include in your library path!");
e.printStackTrace();
return;
}
System.out.println("PostgreSQL JDBC Driver Registered!");
java.sql.Connection connection = null;
try {
connection = DriverManager.getConnection(url, username, password);
} catch (Exception e) {
System.out.println("Connection Failed! Check output console");
e.printStackTrace();
return;
}
if (connection != null) {
Statement s = connection.createStatement();
ResultSet rs = null, ry = null;
String q1 = "Select * from node where building_name = 'lib'";/* session.getAttribute("building_name") */
// add floor number also in the query
rs = (s.executeQuery(q1));
String q2 = "Select * from edge where building_name = 'lib'";/* session.getAttribute("building_name") */
// add floorr number also in the query
while (rs.next()) {
String id = rs.getString("node_id");
String x = rs.getString("latitude");
String y = rs.getString("longitude");
// System.out.println(id + " " + x + " " + y);%>
var idd = "<%=id%>";
var xx = "<%=x%>";
var yy = "<%=y%>";
// alert(idd + " " + xx + " " + yy);
thisGraph.setIdCt(thisGraph.idct++);
thisGraph.nodes.push({
"id" : idd,
"title" : "",
"x" : xx,
"y" : yy
});
thisGraph.updateGraph();
<%}%>
d3.selectAll('circle').attr("id",function(d){return d.id;});
var newEdges = [];
<%ry = (s.executeQuery(q2));
while (ry.next()) {
String eid = ry.getString("edge_id");
String ex = ry.getString("start_node");
String ey = ry.getString("end_node");
//System.out.println(eid + " " + ex + " " + ey);%>
var iidd = "<%=eid%>";
var exx = "<%=ex%>";
var eyy = "<%=ey%>";
// alert(iidd + " " + exx + " " + eyy);
newEdges.push({
"id" : iidd,
"source" : exx,
"target" : eyy
});
<%}%>
newEdges
.forEach(function(e, i) {
newEdges[i] = {
id : e.id,
source : thisGraph.nodes
.filter(function(
n) {
return n.id == e.source;
})[0],
target : thisGraph.nodes
.filter(function(
n) {
return n.id == e.target;
})[0]
};
});
thisGraph.edges = newEdges;
// alert("before ");
thisGraph.updateGraph();
// alert("after ")
loadDone = true;
<%
Statement st = connection.createStatement();
ResultSet rt = null;
String q3 = "Select * from evacrun_path where building_name = 'lib' and scenario_name='scene1' and algorithm='CCRP_extended'";/* session.getAttribute("building_name") */
// add floor number also in the query
rt = (st.executeQuery(q3));
while (rt.next()) {
String initial = rt.getString("edgelist");
String init = rt.getString("path");
// System.out.println(initial);
int n = initial.length();
String x = initial.substring(1, n - 1);
//System.out.println(x);
String z[] = init.split("---");
String y[] = x.split(",");
for (int i = 0; i < y.length; i++) {
//System.out.println("#"+y[i]);%>
var k = "<%=y[i]%>";
d3.select("#"+k).style("stroke","black");
<%}
for (int i = 0; i < z.length; i++) {
//System.out.println("#"+y[i]);%>
var kw = "<%=z[i]%>";
d3.select("#"+kw).style("fill","black");
<%}
}
} else {
System.out.println("Not connected");
}%>
}
thisGraph.nodes = nodes || [];
thisGraph.edges = edges || [];
thisGraph.state = {
selectedNode : null,
selectedEdge : null,
mouseDownNode : null,
mouseDownLink : null,
justDragged : false,
justScaleTransGraph : false,
lastKeyDown : -1,
shiftNodeDrag : false,
selectedText : null
};
// define arrow markers for graph links
var defs = svg.append('svg:defs');
defs.append('svg:marker').attr('id', 'end-arrow').attr(
'viewBox', '0 0 0 0').attr('refX', "0").attr(
'markerWidth', 0).attr('markerHeight', 0).attr(
'orient', 'auto').append('svg:path').attr('d',
'M0,0');
// define arrow markers for leading arrow
defs.append('svg:marker').attr('id', 'mark-end-arrow')
.attr('viewBox', '0 0 00 00').attr('refX', 0).attr(
'markerWidth', 0).attr('markerHeight', 0)
.attr('orient', 'auto').append('svg:path').attr(
'd', 'M0,00');
thisGraph.svg = svg;
thisGraph.svgG = svg.append("g").classed(
thisGraph.consts.graphClass, true);
var svgG = thisGraph.svgG;
// displayed when dragging between nodes
thisGraph.dragLine = svgG.append('svg:path').attr('class',
'link dragline hidden').attr('d', 'M0,0L0,0')
.style('marker-end', 'url(#mark-end-arrow)');
// svg nodes and edges
thisGraph.paths = svgG.append("g").selectAll("g");
thisGraph.circles = svgG.append("g").selectAll("g");
thisGraph.drag = d3.behavior.drag().origin(function(d) {
return {
x : d.x,
y : d.y
};
}).on("drag", function(args) {
thisGraph.state.justDragged = true;
thisGraph.dragmove.call(thisGraph, args);
}).on("dragend", function() {
// todo check if edge-mode is selected
});
// listen for key events
d3.select(window).on("keydown", function() {
thisGraph.svgKeyDown.call(thisGraph);
}).on("keyup", function() {
thisGraph.svgKeyUp.call(thisGraph);
});
svg.on("mousedown", function(d) {
thisGraph.svgMouseDown.call(thisGraph, d);
});
svg.on("mouseup", function(d) {
thisGraph.svgMouseUp.call(thisGraph, d);
});
// listen for dragging
var dragSvg = d3.behavior.zoom().on("zoom", function() {
if (d3.event.sourceEvent.shiftKey && canEdit) {
// TODO the internal d3 state is still changing
return false;
} else {
thisGraph.zoomed.call(thisGraph);
}
return true;
}).on(
"zoomstart",
function() {
var ael = d3.select(
"#" + thisGraph.consts.activeEditId)
.node();
if (ael) {
ael.blur();
}
if (!d3.event.sourceEvent.shiftKey)
d3.select('body').style("cursor", "move");
}).on("zoomend", function() {
d3.select('body').style("cursor", "auto");
});
svg.call(dragSvg).on("dblclick.zoom", null);
// listen for resize
window.onresize = function() {
thisGraph.updateWindow(svg);
};
// handle uploaded data
d3
.select("#upload-input")
.on(
"click",
function() {
reset();
});
/////////////// SOURCE NODES //////////////
d3 .select("#source-node")
.on(
"click",
function() {
document.getElementById('upload-input').click();
<%if (connection != null) {
Statement ss = connection.createStatement();
ResultSet rss = null;
// the specific names of building and scenarios are to be given
String q1s = "Select * from scenario_node where building_name = 'lib' and scenario_name='scene1'";/* session.getAttribute("building_name") */
// add floor number also in the query
rss = (ss.executeQuery(q1s));
while (rss.next()) {
String id = rss.getString("node_id");
String type = rss.getString("node_type");
// System.out.println(id + " " + x + " " + y);%>
var iddd = "<%=id%>";
var typeee = "<%=type%>";
// d3.select("#"+iddd).style("fill","gray").attr("r",nodeRadius);
// alert(iddd +" "+typeee);
<%if (type.compareTo("source") == 0) {%>
d3.select("#"+iddd).style("fill","red").attr("r",20);
<%}
}
}else{
System.out.println("Not connected");
}%>
});
//////////////// DESTINATION NODES ////////////////
d3 .select("#dest-node")
.on(
"click",
function() {
document.getElementById('upload-input').click();
<%if (connection != null) {
Statement sq = connection.createStatement();
ResultSet rsq = null;
// the specific names of building and scenarios are to be given
String q1q = "Select * from scenario_node where building_name = 'lib' and scenario_name='scene1'";/* session.getAttribute("building_name") */
// add floor number also in the query
rsq = (sq.executeQuery(q1q));
while (rsq.next()) {
String id = rsq.getString("node_id");
String type = rsq.getString("node_type");
// System.out.println(id + " " + x + " " + y);%>
var iddd = "<%=id%>";
var typeee = "<%=type%>";
// d3.select("#"+iddd).style("fill","gray").attr("r",nodeRadius);
// alert(iddd +" "+typeee);
<%if (type.compareTo("destination") == 0) {%>
d3.select("#"+iddd).style("fill","green").attr("r",20);
<%}
}%>
<%}else{ System.out.println("Not connected");
}%>
});
////////// RESCUE CENTRES ////////////////
d3 .select("#rescue")
.on(
"click",
function() {
document.getElementById('upload-input').click();
<%if (connection != null) {
Statement sw = connection.createStatement();
ResultSet rsw = null;
// the specific names of building and scenarios are to be given
String q1w = "Select * from scenario_node where building_name = 'lib' and scenario_name='scene1'";/* session.getAttribute("building_name") */
// add floor number also in the query
rsw = (sw.executeQuery(q1w));
while (rsw.next()) {
String id = rsw.getString("node_id");
String type = rsw.getString("node_type");%>
var iddd = "<%=id%>";
var typeee = "<%=type%>";
// d3.select("#"+iddd).style("fill","gray").attr("r",nodeRadius);
// alert(iddd + " " + typeee)
<%if (type.compareTo("rescueCenter") == 0) {
%>
//alert(iddd +" "+typeee);
d3.select("#" + iddd).style("fill",
"blue").attr("r", 25);
<% }
}}
else {
System.out.println("Failed to make connection!");
}%>
});
// handle delete graph
d3.select("#delete-graph").on("click", function() {
thisGraph.deleteGraph(false);
});
};
GraphCreator.prototype.setIdCt = function(idct) {
this.idct = idct;
};
GraphCreator.prototype.setCdCt = function(cdct) {
this.cdct = cdct;
};
GraphCreator.prototype.consts = {
selectedClass : "selected",
connectClass : "connect-node",
circleGClass : "conceptG",
graphClass : "graph",
activeEditId : "active-editing",
BACKSPACE_KEY : 8,
DELETE_KEY : 46,
ENTER_KEY : 13,
nodeRadius : 10
};
/* PROTOTYPE FUNCTIONS */
/* GraphCreator.prototype.dragmove = function(d) {
var thisGraph = this;
if (thisGraph.state.shiftNodeDrag) {
thisGraph.dragLine.attr('d', 'M' + d.x + ',' + d.y
+ 'L' + d3.mouse(thisGraph.svgG.node())[0]
+ ',' + d3.mouse(this.svgG.node())[1]);
} else {
d.x += d3.event.dx;
d.y += d3.event.dy;
thisGraph.updateGraph();
}
};
*/
GraphCreator.prototype.deleteGraph = function(skipPrompt) {
var thisGraph = this, doDelete = true;
if (!skipPrompt) {
doDelete = window
.confirm("Press OK to delete this graph");
}
if (doDelete) {
thisGraph.nodes = [];
thisGraph.edges = [];
thisGraph.updateGraph();
}
};
/* select all text in element: taken from http://stackoverflow.com/questions/6139107/programatically-select-text-in-a-contenteditable-html-element */
GraphCreator.prototype.selectElementContents = function(el) {
var range = document.createRange();
range.selectNodeContents(el);
var sel = window.getSelection();
sel.removeAllRanges();
sel.addRange(range);
};
/* insert svg line breaks: taken from http://stackoverflow.com/questions/13241475/how-do-i-include-newlines-in-labels-in-d3-charts */
GraphCreator.prototype.insertTitleLinebreaks = function(gEl,
title) {
var words = title.split(/\s+/g), nwords = words.length;
var el = gEl.append("text").attr("text-anchor", "middle")
.attr("dy", "-" + (nwords - 1) * 7.5);
for (var i = 0; i < words.length; i++) {
var tspan = el.append('tspan').text(words[i]);
if (i > 0)
tspan.attr('x', 0).attr('dy', '15');
}
};
// remove edges associated with a node
GraphCreator.prototype.spliceLinksForNode = function(node) {
var thisGraph = this, toSplice = thisGraph.edges
.filter(function(l) {
return (l.source === node || l.target === node);
});
toSplice.map(function(l) {
thisGraph.edges.splice(thisGraph.edges.indexOf(l), 1);
});
};
GraphCreator.prototype.replaceSelectEdge = function(d3Path,
edgeData) {
var thisGraph = this;
d3Path.classed(thisGraph.consts.selectedClass, true);
if (thisGraph.state.selectedEdge) {
thisGraph.removeSelectFromEdge();
}
thisGraph.state.selectedEdge = edgeData;
};
GraphCreator.prototype.replaceSelectNode = function(d3Node,
nodeData) {
var thisGraph = this;
d3Node.classed(this.consts.selectedClass, true);
if (thisGraph.state.selectedNode) {
thisGraph.removeSelectFromNode();
}
thisGraph.state.selectedNode = nodeData;
};
GraphCreator.prototype.removeSelectFromNode = function() {
var thisGraph = this;
thisGraph.circles.filter(function(cd) {
return cd.id === thisGraph.state.selectedNode.id;
}).classed(thisGraph.consts.selectedClass, false);
thisGraph.state.selectedNode = null;
};
GraphCreator.prototype.removeSelectFromEdge = function() {
var thisGraph = this;
thisGraph.paths.filter(function(cd) {
return cd === thisGraph.state.selectedEdge;
}).classed(thisGraph.consts.selectedClass, false);
thisGraph.state.selectedEdge = null;
};
GraphCreator.prototype.pathMouseDown = function(d3path, d) {
var thisGraph = this, state = thisGraph.state;
d3.event.stopPropagation();
state.mouseDownLink = d;
if (state.selectedNode) {
thisGraph.removeSelectFromNode();
}
var prevEdge = state.selectedEdge;
if (!prevEdge || prevEdge !== d) {
thisGraph.replaceSelectEdge(d3path, d);
} else {
thisGraph.removeSelectFromEdge();
}
};
// mousedoubleclick on edge
GraphCreator.prototype.pathMouseClick = function(d3path, d) {
var thisGraph = this, state = thisGraph.state;
d3.event.stopPropagation();
state.mouseDownLink = d;
edgechild_open();
};
// mousedown on node
/* GraphCreator.prototype.circleMouseDown = function(d3node, d) {
var thisGraph = this, state = thisGraph.state;
d3.event.stopPropagation();
state.mouseDownNode = d;
if (d3.event.shiftKey && canEdit) {
state.shiftNodeDrag = d3.event.shiftKey;
// reposition dragged directed edge
thisGraph.dragLine.classed('hidden', false).attr('d',
'M' + d.x + ',' + d.y + 'L' + d.x + ',' + d.y);
return;
}
}; */
// mousedoubleclick on node
GraphCreator.prototype.circleMouseClick = function(d3node, d) {
var thisGraph = this, state = thisGraph.state;
d3.event.stopPropagation();
state.mouseDownNode = d;
document
.write("< a href = 'NodeForm.jsp?param_id' + d.id > </a>")
// alert("entered")
nodechild_open(d.id, d.x, d.y);
};
/* place editable text on node in place of svg text */
GraphCreator.prototype.changeTextOfNode = function(d3node, d) {
var thisGraph = this, consts = thisGraph.consts, htmlEl = d3node
.node();
d3node.selectAll("text").remove();
var nodeBCR = htmlEl.getBoundingClientRect(), curScale = nodeBCR.width
/ consts.nodeRadius, placePad = 5 * curScale, useHW = curScale > 1 ? nodeBCR.width * 0.71
: consts.nodeRadius * 1.42;
// replace with editableconent text
var d3txt = thisGraph.svg
.selectAll("foreignObject")
.data([ d ])
.enter()
.append("foreignObject")
.attr("x", nodeBCR.left + placePad)
.attr("y", nodeBCR.top + placePad)
.attr("height", 2 * useHW)
.attr("width", useHW)
.append("xhtml:p")
.attr("id", consts.activeEditId)
.attr("contentEditable", "true")
.text(d.title)
.on("mousedown", function(d) {
d3.event.stopPropagation();
})
.on(
"keydown",
function(d) {
d3.event.stopPropagation();
if (d3.event.keyCode == consts.ENTER_KEY
&& !d3.event.shiftKey) {
this.blur();
}
}).on(
"blur",
function(d) {
d.title = this.textContent;
thisGraph.insertTitleLinebreaks(d3node,
d.title);
d3.select(this.parentElement).remove();
});
return d3txt;
};
// mouseup on nodes
/* GraphCreator.prototype.circleMouseUp = function(d3node, d) {
var thisGraph = this, state = thisGraph.state, consts = thisGraph.consts;
// reset the states
state.shiftNodeDrag = false;
d3node.classed(consts.connectClass, false);
var mouseDownNode = state.mouseDownNode;
if (!mouseDownNode)
return;
thisGraph.dragLine.classed("hidden", true);
if (mouseDownNode !== d) {
// we're in a different node: create new edge for mousedown edge and add to graph
var newEdge = {
id : "path_" + menuForm.select1.selectedIndex + "_"
+ thisGraph.cdct++,
source : mouseDownNode,
target : d
};
var filtRes = thisGraph.paths.filter(function(d) {
if (d.source === newEdge.target
&& d.target === newEdge.source) {
thisGraph.edges.splice(thisGraph.edges
.indexOf(d), 1);
}
return d.source === newEdge.source
&& d.target === newEdge.target;
});
if (!filtRes[0].length) {
thisGraph.edges.push(newEdge);
thisGraph.updateGraph();
}
} else {
// we're in the same node
if (state.justDragged) {
// dragged, not clicked
state.justDragged = false;
} else {
// clicked, not dragged
if (d3.event.shiftKey && canEdit) {
// shift-clicked node: edit text content
var d3txt = thisGraph.changeTextOfNode(d3node,
d);
var txtNode = d3txt.node();
thisGraph.selectElementContents(txtNode);
txtNode.focus();
} else {
if (state.selectedEdge) {
thisGraph.removeSelectFromEdge();
}
var prevNode = state.selectedNode;
if (!prevNode || prevNode.id !== d.id) {
thisGraph.replaceSelectNode(d3node, d);
} else {
thisGraph.removeSelectFromNode();
}
}
}
}
state.mouseDownNode = null;
return;
}; // end of circles mouseup */
// mousedown on main svg
GraphCreator.prototype.svgMouseDown = function() {
this.state.graphMouseDown = true;
};
// mouseup on main svg
GraphCreator.prototype.svgMouseUp = function() {
var thisGraph = this, state = thisGraph.state;
if (state.justScaleTransGraph) {
// dragged not clicked
state.justScaleTransGraph = false;
} else if (state.graphMouseDown && d3.event.shiftKey
&& canEdit) {
// clicked not dragged from svg
var xycoords = d3.mouse(thisGraph.svgG.node()), d = {
id : thisGraph.idct++,
title : "",
x : xycoords[0],
y : xycoords[1]
};
thisGraph.nodes.push(d);
thisGraph.updateGraph();
// make title of text immediently editable
var d3txt = thisGraph.changeTextOfNode(
thisGraph.circles.filter(function(dval) {
return dval.id === d.id;
}), d), txtNode = d3txt.node();
thisGraph.selectElementContents(txtNode);
txtNode.focus();
} else if (state.shiftNodeDrag && canEdit) {
// dragged from node
state.shiftNodeDrag = false;
thisGraph.dragLine.classed("hidden", true);
}
state.graphMouseDown = false;
};
// keydown on main svg
GraphCreator.prototype.svgKeyDown = function() {
var thisGraph = this, state = thisGraph.state, consts = thisGraph.consts;
// make sure repeated key presses don't register for each keydown
if (state.lastKeyDown !== -1)
return;
state.lastKeyDown = d3.event.keyCode;
var selectedNode = state.selectedNode, selectedEdge = state.selectedEdge;
switch (d3.event.keyCode) {
case consts.BACKSPACE_KEY:
case consts.DELETE_KEY:
d3.event.preventDefault();
if (selectedNode) {
thisGraph.nodes.splice(thisGraph.nodes
.indexOf(selectedNode), 1);
thisGraph.spliceLinksForNode(selectedNode);
state.selectedNode = null;
thisGraph.updateGraph();
} else if (selectedEdge) {
thisGraph.edges.splice(thisGraph.edges
.indexOf(selectedEdge), 1);
state.selectedEdge = null;
thisGraph.updateGraph();
}
break;
}
};
GraphCreator.prototype.svgKeyUp = function() {
this.state.lastKeyDown = -1;
};
// call to propagate changes to graph
GraphCreator.prototype.updateGraph = function() {
var thisGraph = this, consts = thisGraph.consts, state = thisGraph.state;
thisGraph.paths = thisGraph.paths.data(thisGraph.edges,
function(d) {
return String(d.source.id) + "+"
+ String(d.target.id);
});
var paths = thisGraph.paths;
// update existing paths
paths.style('marker-end', 'url(#end-arrow)').classed(
consts.selectedClass, function(d) {
return d === state.selectedEdge;
}).attr(
"d",
function(d) {
return "M" + d.source.x + "," + d.source.y
+ "L" + d.target.x + "," + d.target.y;
});
// add new paths
paths.enter().append("path").style('marker-end',
'url(#end-arrow)').classed("link", true).attr("id",
function(d, i) {
return d.id;
}).attr(
"d",
function(d) {
return "M" + d.source.x + "," + d.source.y
+ "L" + d.target.x + "," + d.target.y;
}).on(