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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Also returns a list of labeled polygons for debugging."><meta name="keywords" content="rust, rustlang, rust-lang, intersection_polygon"><title>intersection_polygon in raw_map - Rust</title><link rel="stylesheet" type="text/css" href="../normalize.css"><link rel="stylesheet" type="text/css" href="../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../light.css" id="themeStyle"><link rel="stylesheet" type="text/css" href="../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../ayu.css" disabled ><script id="default-settings" ></script><script src="../storage.js"></script><script src="../crates.js"></script><script defer src="../main.js"></script>
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<noscript><link rel="stylesheet" href="../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../favicon.svg"><style type="text/css">#crate-search{background-image:url("../down-arrow.svg");}</style></head><body class="rustdoc fn"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu" role="button">☰</div><a href='../raw_map/index.html'><div class='logo-container rust-logo'><img src='../rust-logo.png' alt='logo'></div></a><div class="sidebar-elems"><h2 class="location">Other items in<br><a href="index.html">raw_map</a></h2><div id="sidebar-vars" data-name="intersection_polygon" data-ty="fn" data-relpath=""></div><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu" title="themes"><img width="18" height="18" alt="Pick another theme!" src="../brush.svg"></button><div id="theme-choices" role="menu"></div></div><nav class="sub"><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" id="help-button" title="help">?</button><a id="settings-menu" href="../settings.html" title="settings"><img width="18" height="18" alt="Change settings" src="../wheel.svg"></a></div></form></nav><section id="main" class="content"><h1 class="fqn"><span class="in-band">Function <a href="index.html">raw_map</a>::<wbr><a class="fn" href="#">intersection_polygon</a><button id="copy-path" onclick="copy_path(this)" title="Copy item path to clipboard"><img src="../clipboard.svg" width="19" height="18" alt="Copy item path"></button></span><span class="out-of-band"><span id="render-detail"><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span><a class="srclink" href="../src/raw_map/geometry.rs.html#37-159" title="goto source code">[src]</a></span></h1><div class="docblock item-decl"><pre class="rust fn"><code>pub fn intersection_polygon(<br> intersection_id: <a class="struct" href="osm/struct.NodeID.html" title="struct raw_map::osm::NodeID">NodeID</a>, <br> intersection_roads: <a class="struct" href="https://doc.rust-lang.org/1.58.1/alloc/collections/btree/set/struct.BTreeSet.html" title="struct alloc::collections::btree::set::BTreeSet">BTreeSet</a><<a class="struct" href="struct.OriginalRoad.html" title="struct raw_map::OriginalRoad">OriginalRoad</a>>, <br> roads: &mut <a class="struct" href="https://doc.rust-lang.org/1.58.1/alloc/collections/btree/map/struct.BTreeMap.html" title="struct alloc::collections::btree::map::BTreeMap">BTreeMap</a><<a class="struct" href="struct.OriginalRoad.html" title="struct raw_map::OriginalRoad">OriginalRoad</a>, <a class="struct" href="initial/struct.Road.html" title="struct raw_map::initial::Road">Road</a>>, <br> trim_roads_for_merging: &<a class="struct" href="https://doc.rust-lang.org/1.58.1/alloc/collections/btree/map/struct.BTreeMap.html" title="struct alloc::collections::btree::map::BTreeMap">BTreeMap</a><<a class="primitive" href="https://doc.rust-lang.org/1.58.1/std/primitive.tuple.html">(</a><a class="struct" href="osm/struct.WayID.html" title="struct raw_map::osm::WayID">WayID</a>, <a class="primitive" href="https://doc.rust-lang.org/1.58.1/std/primitive.bool.html">bool</a><a class="primitive" href="https://doc.rust-lang.org/1.58.1/std/primitive.tuple.html">)</a>, <a class="struct" href="../geom/pt/struct.Pt2D.html" title="struct geom::pt::Pt2D">Pt2D</a>&g
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<p>Ideally, the resulting polygon should exist entirely within the thick bands around all original
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roads – it just carves up part of that space, doesn’t reach past it. But that’s not always true
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yet.</p>
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