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<!-- vim: sw=2 ts=2 expandtab smartindent ft=javascript
-->
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>web finder</title>
<style> document, body { margin: 0px; padding: 0px; overflow: hidden; } </style>
</head>
<body>
<script type="module">"use strict";
{
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"x": -10750,
"y": 28349.999912974512
},
{
"x": -10750.000294377263,
"y": 29750
}
]
},
{
"ID": "A4D67C07-C26C-4D4B-A1B2-88D6F7C023C6",
"contour": [
{
"x": -5900,
"y": 28349.99997359543
},
{
"x": -5899.999727973533,
"y": 29700
}
]
},
{
"ID": "13AE8D1C-28CD-4185-930B-AAD2DF13FD4D",
"contour": [
{
"x": -21550,
"y": 25600.00007694884
},
{
"x": -20048.528850671883,
"y": 25599.99992305116
}
]
},
{
"ID": "36B546DA-4EBE-45F2-B412-EB8A87947FEF",
"contour": [
{
"x": -20048.529096445724,
"y": 19750.000206760626
},
{
"x": -17500,
"y": 19749.999793239378
}
]
},
{
"ID": "40BDEB71-A2CA-435E-954C-E74CBF48AE6E",
"contour": [
{
"x": -20048.528696027264,
"y": 24049.99997880393
},
{
"x": -18400,
"y": 24049.999897143043
}
]
},
{
"ID": "4E187F97-71EF-4DA8-A653-05A6CD1DE954",
"contour": [
{
"x": -21200,
"y": 21924.999613288586
},
{
"x": -20048.528850671883,
"y": 21924.99959638819
}
]
},
{
"ID": "01E66400-CC70-4960-BDBE-930D1DD2B38C",
"contour": [
{
"x": -25900.00037782012,
"y": 28400.000022227236
},
{
"x": -25899.999927588127,
"y": 17400.000285813585
}
]
},
{
"ID": "1676EBBD-B028-4DE1-8BB1-EFF4A0373B24",
"contour": [
{
"x": -33510.1373706375,
"y": 24050.000200092683
},
{
"x": -24900,
"y": 24049.999799907317
}
]
},
{
"ID": "5E2FC932-008B-47D0-8311-BE0BEECE1434",
"contour": [
{
"x": -27568.975026272605,
"y": 21450.000324916396
},
{
"x": -27495.784496126107,
"y": 21450.00055946804
},
{
"x": -25900.000000000065,
"y": 21450.000944803065
}
]
},
{
"ID": "6D094910-F54E-42A4-9349-FDD4E5D0F88C",
"contour": [
{
"x": -33510.13751347238,
"y": 19350.000209586866
},
{
"x": -24800,
"y": 19349.999790413134
}
]
},
{
"ID": "D00FECB6-5B91-499B-B928-C3AD8E74541D",
"contour": [
{
"x": -33510.13772271252,
"y": 28399.999468402475
},
{
"x": -24905.36619951768,
"y": 28399.99961436448
}
]
},
{
"ID": "36268912-F442-4645-B14F-CBECEA28037A",
"contour": [
{
"x": -28550,
"y": 13249.999900640356
},
{
"x": -28492.638337208187,
"y": 13246.298930457626
},
{
"x": -27400,
"y": 13249.999471766805
},
{
"x": -27318.71725085017,
"y": 9503.68289855568
},
{
"x": -28080.032238194348,
"y": 9200
},
{
"x": -28142.21101753107,
"y": 8582.9331470494
}
]
},
{
"ID": "507CDEE6-8C73-4D3E-8162-A5C036DE31D7",
"contour": [
{
"x": -27389.91718426927,
"y": 10265.326900339323
},
{
"x": -32914.05165207769,
"y": 10265.326598284144
},
{
"x": -33040.46337254075,
"y": 8553.532816097206
}
]
},
{
"ID": "44ACA6C5-8E43-4EF4-86B5-4A8EAC0A722B",
"contour": [
{
"x": -15806.022772480732,
"y": 23450
},
{
"x": -14650,
"y": 23450.00009740405
}
]
},
{
"ID": "9E92F82C-6208-4E89-A978-97E08AF6496C",
"contour": [
{
"x": -15806.023545637168,
"y": 18200
},
{
"x": -14700,
"y": 18199.99997104158
}
]
},
{
"ID": "C13C014C-EEA6-4480-9A33-3AD2F651DE06",
"contour": [
{
"x": -15806.023373547636,
"y": 21187.541769784362
},
{
"x": -14650,
"y": 21187.542221118805
}
]
},
{
"ID": "6EA7C26F-4AF1-4C84-8DDF-2604DD010926",
"contour": [
{
"x": 9522.615197714023,
"y": 22100
},
{
"x": 12100,
"y": 22099.99965873204
}
]
},
{
"ID": "9A721D0A-95B6-4ED5-91B0-F64A93FBD4FB",
"contour": [
{
"x": 9522.615398063766,
"y": 19769.495527839044
},
{
"x": 12150,
"y": 19769.495333750216
}
]
}
]
const rtus = [
{
"id": "964F09B7-E990-4E15-83C1-2D7D7023AA3D",
"x": 1450,
"y": 17550
},
{
"id": "C80C9647-1990-4413-A2A5-35C2943E9D34",
"x": -100,
"y": 14000
},
{
"id": "4F3D149E-2349-41C0-9441-F6EB7CB5A97A",
"x": 9350,
"y": 15900
},
{
"id": "400716D3-28C9-4F3D-AEDF-B97B6F1A5D6E",
"x": -16300,
"y": 28150
},
{
"id": "DE37237C-DEED-48CB-8C87-73638464258E",
"x": -27750,
"y": 21300
},
{
"id": "9182728A-26B2-4040-8740-7EB4E7221508",
"x": -28750,
"y": 13250
}
];
function pipe_segments(pipe) {
return pipe.segments;
}
function *contour_segments(contour) {
let last = contour[0];
for (const p of contour.slice(1)) {
yield ({ lhs: last, rhs: p });
last = p;
}
}
for (const pipe of web) {
pipe.color = 'navy';
}
const path_calc_start = performance.now();
/* push all the lines out a little bit so we don't miss any junctions */
{
for (const pipe of web) {
const segments = JSON.parse(JSON.stringify([...contour_segments(pipe.contour)]));
/* create link shorthands between the nodes; obviously I could just juggle indices
* in the later code, but I find the shorthand and linked list mindset convenient */
for (let i = 0; i < segments.length; i++) {
segments[i].prev = segments[i - 1] ?? null;
segments[i].next = segments[i + 1] ?? null;
}
for (const seg of segments) {
let dx = seg.lhs.x - seg.rhs.x;
let dy = seg.lhs.y - seg.rhs.y;
let dlen = Math.sqrt(dx*dx + dy*dy);
dx /= dlen;
dy /= dlen;
seg.stretched_lhs = {};
seg.stretched_rhs = {};
seg.stretched_lhs.x = seg.lhs.x + dx * 200;
seg.stretched_lhs.y = seg.lhs.y + dy * 200;
seg.stretched_rhs.x = seg.rhs.x - dx * 200;
seg.stretched_rhs.y = seg.rhs.y - dy * 200;
seg.connections = [];
}
pipe.segments = segments;
}
}
/* find junctions */
const junctions = [];
{
for (const pipe of web) for (const pipe_seg of pipe_segments(pipe)) {
for (const near of web) if (near != pipe) for (const near_seg of pipe_segments(near)) {
if (pipe_seg.connections.some(x => x.segment == near_seg)) continue;
const j = line_hits_line(
pipe_seg.stretched_lhs, pipe_seg.stretched_rhs,
near_seg.stretched_lhs, near_seg.stretched_rhs
);
if (j) {
junctions.push(j)
pipe_seg.connections.push({ neighbor: near, segment: near_seg, junction: j });
near_seg.connections.push({ neighbor: pipe, segment: pipe_seg, junction: j });
}
}
}
}
let complete_paths = [];
{
for (const rtu of rtus) {
for (const pipe of web) {
let closest_segment_dist = Infinity;
let closest_segment;
for (const pipe_segment of pipe_segments(pipe)) {
const dist = point_to_line(pipe_segment.lhs, pipe_segment.rhs, rtu.x, rtu.y);
if (dist > RTU_SIZE) continue;
if (dist > closest_segment_dist) continue;
closest_segment_dist = dist;
closest_segment = pipe_segment;
}
if (!closest_segment) continue;
/* we found a pipe directly connected to an RTU
* now we want to recursively go to each of its outputs,
* and return a complete path from beginning to end for each possible one. */
pipe.color = 'blue';
const lhs_dist = point_to_point2(closest_segment.lhs.x, closest_segment.lhs.y, rtu.x, rtu.y);
const rhs_dist = point_to_point2(closest_segment.rhs.x, closest_segment.rhs.y, rtu.x, rtu.y);
const base = (lhs_dist < rhs_dist) ? closest_segment.lhs : closest_segment.rhs;
let seen = new Set();
let frontier = [];
{
const path = [base];
const segment = closest_segment;
const direction = (base == closest_segment.lhs) ? 'next' : 'prev';
frontier.push({ path, segment, direction });
}