<!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="Source of the Rust file `map_model&#x2F;src&#x2F;make&#x2F;mod.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>mod.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Semibold.ttf.woff2"><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="../../../ayu.css" disabled><link rel="stylesheet" type="text/css" href="../../../dark.css" disabled><link rel="stylesheet" type="text/css" href="../../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../../storage.js"></script><script src="../../../crates.js"></script><script defer src="../../../main.js"></script><script defer src="../../../source-script.js"></script><script defer src="../../../source-files.js"></script>
    <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"></head><body class="rustdoc source"><!--[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">&#9776;</div><a class="sidebar-logo" href="../../../map_model/index.html"><div class="logo-container"><img class="rust-logo" src="../../../rust-logo.png" alt="logo"></div>
        </a></nav><main><div class="width-limiter"><div class="sub-container"><a class="sub-logo-container" href="../../../map_model/index.html"><img class="rust-logo" src="../../../rust-logo.png" alt="logo"></a><nav class="sub"><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><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></div><section id="main-content" class="content"><div class="example-wrap"><pre class="line-numbers"><span id="1">  1</span>
<span id="2">  2</span>
<span id="3">  3</span>
<span id="4">  4</span>
<span id="5">  5</span>
<span id="6">  6</span>
<span id="7">  7</span>
<span id="8">  8</span>
<span id="9">  9</span>
<span id="10"> 10</span>
<span id="11"> 11</span>
<span id="12"> 12</span>
<span id="13"> 13</span>
<span id="14"> 14</span>
<span id="15"> 15</span>
<span id="16"> 16</span>
<span id="17"> 17</span>
<span id="18"> 18</span>
<span id="19"> 19</span>
<span id="20"> 20</span>
<span id="21"> 21</span>
<span id="22"> 22</span>
<span id="23"> 23</span>
<span id="24"> 24</span>
<span id="25"> 25</span>
<span id="26"> 26</span>
<span id="27"> 27</span>
<span id="28"> 28</span>
<span id="29"> 29</span>
<span id="30"> 30</span>
<span id="31"> 31</span>
<span id="32"> 32</span>
<span id="33"> 33</span>
<span id="34"> 34</span>
<span id="35"> 35</span>
<span id="36"> 36</span>
<span id="37"> 37</span>
<span id="38"> 38</span>
<span id="39"> 39</span>
<span id="40"> 40</span>
<span id="41"> 41</span>
<span id="42"> 42</span>
<span id="43"> 43</span>
<span id="44"> 44</span>
<span id="45"> 45</span>
<span id="46"> 46</span>
<span id="47"> 47</span>
<span id="48"> 48</span>
<span id="49"> 49</span>
<span id="50"> 50</span>
<span id="51"> 51</span>
<span id="52"> 52</span>
<span id="53"> 53</span>
<span id="54"> 54</span>
<span id="55"> 55</span>
<span id="56"> 56</span>
<span id="57"> 57</span>
<span id="58"> 58</span>
<span id="59"> 59</span>
<span id="60"> 60</span>
<span id="61"> 61</span>
<span id="62"> 62</span>
<span id="63"> 63</span>
<span id="64"> 64</span>
<span id="65"> 65</span>
<span id="66"> 66</span>
<span id="67"> 67</span>
<span id="68"> 68</span>
<span id="69"> 69</span>
<span id="70"> 70</span>
<span id="71"> 71</span>
<span id="72"> 72</span>
<span id="73"> 73</span>
<span id="74"> 74</span>
<span id="75"> 75</span>
<span id="76"> 76</span>
<span id="77"> 77</span>
<span id="78"> 78</span>
<span id="79"> 79</span>
<span id="80"> 80</span>
<span id="81"> 81</span>
<span id="82"> 82</span>
<span id="83"> 83</span>
<span id="84"> 84</span>
<span id="85"> 85</span>
<span id="86"> 86</span>
<span id="87"> 87</span>
<span id="88"> 88</span>
<span id="89"> 89</span>
<span id="90"> 90</span>
<span id="91"> 91</span>
<span id="92"> 92</span>
<span id="93"> 93</span>
<span id="94"> 94</span>
<span id="95"> 95</span>
<span id="96"> 96</span>
<span id="97"> 97</span>
<span id="98"> 98</span>
<span id="99"> 99</span>
<span id="100">100</span>
<span id="101">101</span>
<span id="102">102</span>
<span id="103">103</span>
<span id="104">104</span>
<span id="105">105</span>
<span id="106">106</span>
<span id="107">107</span>
<span id="108">108</span>
<span id="109">109</span>
<span id="110">110</span>
<span id="111">111</span>
<span id="112">112</span>
<span id="113">113</span>
<span id="114">114</span>
<span id="115">115</span>
<span id="116">116</span>
<span id="117">117</span>
<span id="118">118</span>
<span id="119">119</span>
<span id="120">120</span>
<span id="121">121</span>
<span id="122">122</span>
<span id="123">123</span>
<span id="124">124</span>
<span id="125">125</span>
<span id="126">126</span>
<span id="127">127</span>
<span id="128">128</span>
<span id="129">129</span>
<span id="130">130</span>
<span id="131">131</span>
<span id="132">132</span>
<span id="133">133</span>
<span id="134">134</span>
<span id="135">135</span>
<span id="136">136</span>
<span id="137">137</span>
<span id="138">138</span>
<span id="139">139</span>
<span id="140">140</span>
<span id="141">141</span>
<span id="142">142</span>
<span id="143">143</span>
<span id="144">144</span>
<span id="145">145</span>
<span id="146">146</span>
<span id="147">147</span>
<span id="148">148</span>
<span id="149">149</span>
<span id="150">150</span>
<span id="151">151</span>
<span id="152">152</span>
<span id="153">153</span>
<span id="154">154</span>
<span id="155">155</span>
<span id="156">156</span>
<span id="157">157</span>
<span id="158">158</span>
<span id="159">159</span>
<span id="160">160</span>
<span id="161">161</span>
<span id="162">162</span>
<span id="163">163</span>
<span id="164">164</span>
<span id="165">165</span>
<span id="166">166</span>
<span id="167">167</span>
<span id="168">168</span>
<span id="169">169</span>
<span id="170">170</span>
<span id="171">171</span>
<span id="172">172</span>
<span id="173">173</span>
<span id="174">174</span>
<span id="175">175</span>
<span id="176">176</span>
<span id="177">177</span>
<span id="178">178</span>
<span id="179">179</span>
<span id="180">180</span>
<span id="181">181</span>
<span id="182">182</span>
<span id="183">183</span>
<span id="184">184</span>
<span id="185">185</span>
<span id="186">186</span>
<span id="187">187</span>
<span id="188">188</span>
<span id="189">189</span>
<span id="190">190</span>
<span id="191">191</span>
<span id="192">192</span>
<span id="193">193</span>
<span id="194">194</span>
<span id="195">195</span>
<span id="196">196</span>
<span id="197">197</span>
<span id="198">198</span>
<span id="199">199</span>
<span id="200">200</span>
<span id="201">201</span>
<span id="202">202</span>
<span id="203">203</span>
<span id="204">204</span>
<span id="205">205</span>
<span id="206">206</span>
<span id="207">207</span>
<span id="208">208</span>
<span id="209">209</span>
<span id="210">210</span>
<span id="211">211</span>
<span id="212">212</span>
<span id="213">213</span>
<span id="214">214</span>
<span id="215">215</span>
<span id="216">216</span>
<span id="217">217</span>
<span id="218">218</span>
<span id="219">219</span>
<span id="220">220</span>
<span id="221">221</span>
<span id="222">222</span>
<span id="223">223</span>
<span id="224">224</span>
<span id="225">225</span>
<span id="226">226</span>
<span id="227">227</span>
<span id="228">228</span>
<span id="229">229</span>
<span id="230">230</span>
<span id="231">231</span>
<span id="232">232</span>
<span id="233">233</span>
<span id="234">234</span>
<span id="235">235</span>
<span id="236">236</span>
<span id="237">237</span>
<span id="238">238</span>
<span id="239">239</span>
<span id="240">240</span>
<span id="241">241</span>
<span id="242">242</span>
<span id="243">243</span>
<span id="244">244</span>
<span id="245">245</span>
<span id="246">246</span>
<span id="247">247</span>
<span id="248">248</span>
<span id="249">249</span>
<span id="250">250</span>
<span id="251">251</span>
<span id="252">252</span>
<span id="253">253</span>
<span id="254">254</span>
<span id="255">255</span>
<span id="256">256</span>
<span id="257">257</span>
<span id="258">258</span>
<span id="259">259</span>
<span id="260">260</span>
<span id="261">261</span>
<span id="262">262</span>
<span id="263">263</span>
<span id="264">264</span>
<span id="265">265</span>
<span id="266">266</span>
<span id="267">267</span>
<span id="268">268</span>
<span id="269">269</span>
<span id="270">270</span>
<span id="271">271</span>
<span id="272">272</span>
<span id="273">273</span>
<span id="274">274</span>
<span id="275">275</span>
<span id="276">276</span>
<span id="277">277</span>
<span id="278">278</span>
<span id="279">279</span>
<span id="280">280</span>
<span id="281">281</span>
<span id="282">282</span>
<span id="283">283</span>
<span id="284">284</span>
<span id="285">285</span>
<span id="286">286</span>
<span id="287">287</span>
<span id="288">288</span>
<span id="289">289</span>
<span id="290">290</span>
<span id="291">291</span>
<span id="292">292</span>
<span id="293">293</span>
<span id="294">294</span>
<span id="295">295</span>
<span id="296">296</span>
<span id="297">297</span>
<span id="298">298</span>
<span id="299">299</span>
<span id="300">300</span>
<span id="301">301</span>
<span id="302">302</span>
<span id="303">303</span>
<span id="304">304</span>
<span id="305">305</span>
<span id="306">306</span>
<span id="307">307</span>
<span id="308">308</span>
<span id="309">309</span>
<span id="310">310</span>
<span id="311">311</span>
<span id="312">312</span>
<span id="313">313</span>
<span id="314">314</span>
<span id="315">315</span>
<span id="316">316</span>
<span id="317">317</span>
<span id="318">318</span>
<span id="319">319</span>
<span id="320">320</span>
<span id="321">321</span>
<span id="322">322</span>
<span id="323">323</span>
<span id="324">324</span>
<span id="325">325</span>
<span id="326">326</span>
<span id="327">327</span>
<span id="328">328</span>
<span id="329">329</span>
<span id="330">330</span>
<span id="331">331</span>
<span id="332">332</span>
<span id="333">333</span>
<span id="334">334</span>
<span id="335">335</span>
<span id="336">336</span>
<span id="337">337</span>
<span id="338">338</span>
<span id="339">339</span>
<span id="340">340</span>
<span id="341">341</span>
<span id="342">342</span>
<span id="343">343</span>
<span id="344">344</span>
<span id="345">345</span>
<span id="346">346</span>
<span id="347">347</span>
<span id="348">348</span>
<span id="349">349</span>
<span id="350">350</span>
<span id="351">351</span>
<span id="352">352</span>
<span id="353">353</span>
<span id="354">354</span>
<span id="355">355</span>
<span id="356">356</span>
<span id="357">357</span>
<span id="358">358</span>
<span id="359">359</span>
<span id="360">360</span>
<span id="361">361</span>
<span id="362">362</span>
<span id="363">363</span>
<span id="364">364</span>
<span id="365">365</span>
<span id="366">366</span>
<span id="367">367</span>
<span id="368">368</span>
<span id="369">369</span>
<span id="370">370</span>
<span id="371">371</span>
<span id="372">372</span>
<span id="373">373</span>
<span id="374">374</span>
<span id="375">375</span>
</pre><pre class="rust"><code><span class="doccomment">//! See &lt;https://a-b-street.github.io/docs/tech/map/importing/index.html&gt; for an overview. This module</span>
<span class="doccomment">//! covers the RawMap-&gt;Map stage.</span>

<span class="kw">use</span> <span class="ident">std::collections</span>::{<span class="ident">BTreeMap</span>, <span class="ident">BTreeSet</span>, <span class="ident">HashMap</span>, <span class="ident">HashSet</span>};

<span class="kw">use</span> <span class="ident">structopt::StructOpt</span>;

<span class="kw">use</span> <span class="ident">abstutil</span>::{<span class="ident">MultiMap</span>, <span class="ident">Timer</span>};
<span class="kw">use</span> <span class="ident">geom</span>::{<span class="ident">Distance</span>, <span class="ident">FindClosest</span>, <span class="ident">HashablePt2D</span>, <span class="ident">Line</span>, <span class="ident">Polygon</span>, <span class="ident">Speed</span>, <span class="ident">EPSILON_DIST</span>};
<span class="kw">use</span> <span class="ident">raw_map::initial</span>;

<span class="kw">pub</span> <span class="kw">use</span> <span class="ident"><span class="self">self</span>::parking_lots::snap_driveway</span>;
<span class="kw">use</span> <span class="ident"><span class="kw">crate</span>::pathfind</span>::{<span class="ident">CreateEngine</span>, <span class="ident">Pathfinder</span>};
<span class="kw">use</span> <span class="ident"><span class="kw">crate</span>::raw</span>::{<span class="ident">OriginalRoad</span>, <span class="ident">RawMap</span>};
<span class="kw">use</span> <span class="kw">crate</span>::{
    <span class="ident">connectivity</span>, <span class="ident">osm</span>, <span class="ident">AccessRestrictions</span>, <span class="ident">Area</span>, <span class="ident">AreaID</span>, <span class="ident">ControlStopSign</span>, <span class="ident">ControlTrafficSignal</span>,
    <span class="ident">Intersection</span>, <span class="ident">IntersectionID</span>, <span class="ident">IntersectionType</span>, <span class="ident">Lane</span>, <span class="ident">LaneID</span>, <span class="ident">Map</span>, <span class="ident">MapEdits</span>, <span class="ident">PathConstraints</span>,
    <span class="ident">Position</span>, <span class="ident">Road</span>, <span class="ident">RoadID</span>, <span class="ident">RoutingParams</span>, <span class="ident">Zone</span>,
};

<span class="kw">mod</span> <span class="ident">bridges</span>;
<span class="kw">mod</span> <span class="ident">buildings</span>;
<span class="kw">mod</span> <span class="ident">parking_lots</span>;
<span class="kw">pub</span> <span class="kw">mod</span> <span class="ident">traffic_signals</span>;
<span class="kw">pub</span> <span class="kw">mod</span> <span class="ident">transit</span>;
<span class="kw">pub</span> <span class="kw">mod</span> <span class="ident">turns</span>;
<span class="kw">mod</span> <span class="ident">walking_turns</span>;

<span class="doccomment">/// Options for converting RawMaps to Maps.</span>
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Clone</span>, <span class="ident">Default</span>, <span class="ident">StructOpt</span>)]</span>
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">RawToMapOptions</span> {
    <span class="doccomment">/// Should contraction hierarchies for pathfinding be built? They&#39;re slow to build, but without</span>
    <span class="doccomment">/// them, pathfinding on the map later will be very slow.</span>
    <span class="attribute">#[<span class="ident">structopt</span>(<span class="ident">long</span>)]</span>
    <span class="kw">pub</span> <span class="ident">skip_ch</span>: <span class="ident">bool</span>,
    <span class="doccomment">/// Try to consolidate all short roads. Will likely break.</span>
    <span class="attribute">#[<span class="ident">structopt</span>(<span class="ident">long</span>)]</span>
    <span class="kw">pub</span> <span class="ident">consolidate_all_intersections</span>: <span class="ident">bool</span>,
    <span class="doccomment">/// Preserve all OSM tags for buildings, increasing the final file size substantially.</span>
    <span class="attribute">#[<span class="ident">structopt</span>(<span class="ident">long</span>)]</span>
    <span class="kw">pub</span> <span class="ident">keep_bldg_tags</span>: <span class="ident">bool</span>,
}

<span class="kw">impl</span> <span class="ident">Map</span> {
    <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">create_from_raw</span>(<span class="kw-2">mut</span> <span class="ident">raw</span>: <span class="ident">RawMap</span>, <span class="ident">opts</span>: <span class="ident">RawToMapOptions</span>, <span class="ident">timer</span>: <span class="kw-2">&amp;mut</span> <span class="ident">Timer</span>) -&gt; <span class="ident">Map</span> {
        <span class="ident">raw</span>.<span class="ident">run_all_simplifications</span>(<span class="ident">opts</span>.<span class="ident">consolidate_all_intersections</span>, <span class="ident">timer</span>);

        <span class="ident">timer</span>.<span class="ident">start</span>(<span class="string">&quot;raw_map to InitialMap&quot;</span>);
        <span class="kw">let</span> <span class="ident">gps_bounds</span> <span class="op">=</span> <span class="ident">raw</span>.<span class="ident">gps_bounds</span>.<span class="ident">clone</span>();
        <span class="kw">let</span> <span class="ident">bounds</span> <span class="op">=</span> <span class="ident">gps_bounds</span>.<span class="ident">to_bounds</span>();
        <span class="kw">let</span> <span class="ident">initial_map</span> <span class="op">=</span> <span class="ident">initial::InitialMap::new</span>(<span class="kw-2">&amp;</span><span class="ident">raw</span>, <span class="kw-2">&amp;</span><span class="ident">bounds</span>, <span class="ident">timer</span>);
        <span class="ident">timer</span>.<span class="ident">stop</span>(<span class="string">&quot;raw_map to InitialMap&quot;</span>);

        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">map</span> <span class="op">=</span> <span class="ident">Map</span> {
            <span class="ident">roads</span>: <span class="ident">Vec::new</span>(),
            <span class="ident">intersections</span>: <span class="ident">Vec::new</span>(),
            <span class="ident">buildings</span>: <span class="ident">Vec::new</span>(),
            <span class="ident">transit_stops</span>: <span class="ident">BTreeMap::new</span>(),
            <span class="ident">transit_routes</span>: <span class="ident">Vec::new</span>(),
            <span class="ident">areas</span>: <span class="ident">Vec::new</span>(),
            <span class="ident">parking_lots</span>: <span class="ident">Vec::new</span>(),
            <span class="ident">zones</span>: <span class="ident">Vec::new</span>(),
            <span class="ident">boundary_polygon</span>: <span class="ident">raw</span>.<span class="ident">boundary_polygon</span>.<span class="ident">clone</span>(),
            <span class="ident">stop_signs</span>: <span class="ident">BTreeMap::new</span>(),
            <span class="ident">traffic_signals</span>: <span class="ident">BTreeMap::new</span>(),
            <span class="ident">gps_bounds</span>,
            <span class="ident">bounds</span>,
            <span class="ident">config</span>: <span class="ident">raw</span>.<span class="ident">config</span>.<span class="ident">clone</span>(),
            <span class="ident">pathfinder</span>: <span class="ident">Pathfinder::empty</span>(),
            <span class="ident">pathfinder_dirty</span>: <span class="bool-val">false</span>,
            <span class="ident">routing_params</span>: <span class="ident">RoutingParams::default</span>(),
            <span class="ident">name</span>: <span class="ident">raw</span>.<span class="ident">name</span>.<span class="ident">clone</span>(),
            <span class="ident">edits</span>: <span class="ident">MapEdits::new</span>(),
            <span class="ident">edits_generation</span>: <span class="number">0</span>,
            <span class="ident">road_to_buildings</span>: <span class="ident">MultiMap::new</span>(),
        };
        <span class="ident">map</span>.<span class="ident">edits</span> <span class="op">=</span> <span class="ident">map</span>.<span class="ident">new_edits</span>();

        <span class="kw">let</span> <span class="ident">road_id_mapping</span>: <span class="ident">BTreeMap</span><span class="op">&lt;</span><span class="ident">OriginalRoad</span>, <span class="ident">RoadID</span><span class="op">&gt;</span> <span class="op">=</span> <span class="ident">initial_map</span>
            .<span class="ident">roads</span>
            .<span class="ident">keys</span>()
            .<span class="ident">enumerate</span>()
            .<span class="ident">map</span>(<span class="op">|</span>(<span class="ident">idx</span>, <span class="ident">id</span>)<span class="op">|</span> (<span class="kw-2">*</span><span class="ident">id</span>, <span class="ident">RoadID</span>(<span class="ident">idx</span>)))
            .<span class="ident">collect</span>();
        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">intersection_id_mapping</span>: <span class="ident">BTreeMap</span><span class="op">&lt;</span><span class="ident">osm::NodeID</span>, <span class="ident">IntersectionID</span><span class="op">&gt;</span> <span class="op">=</span> <span class="ident">BTreeMap::new</span>();
        <span class="kw">for</span> (<span class="ident">idx</span>, <span class="ident">i</span>) <span class="kw">in</span> <span class="ident">initial_map</span>.<span class="ident">intersections</span>.<span class="ident">values</span>().<span class="ident">enumerate</span>() {
            <span class="kw">let</span> <span class="ident">id</span> <span class="op">=</span> <span class="ident">IntersectionID</span>(<span class="ident">idx</span>);
            <span class="ident">map</span>.<span class="ident">intersections</span>.<span class="ident">push</span>(<span class="ident">Intersection</span> {
                <span class="ident">id</span>,
                <span class="ident">polygon</span>: <span class="ident">i</span>.<span class="ident">polygon</span>.<span class="ident">clone</span>(),
                <span class="ident">turns</span>: <span class="ident">Vec::new</span>(),
                <span class="ident">movements</span>: <span class="ident">BTreeMap::new</span>(),
                <span class="ident">elevation</span>: <span class="ident">i</span>.<span class="ident">elevation</span>,
                <span class="comment">// Might change later</span>
                <span class="ident">intersection_type</span>: <span class="ident">i</span>.<span class="ident">intersection_type</span>,
                <span class="ident">orig_id</span>: <span class="ident">i</span>.<span class="ident">id</span>,
                <span class="ident">incoming_lanes</span>: <span class="ident">Vec::new</span>(),
                <span class="ident">outgoing_lanes</span>: <span class="ident">Vec::new</span>(),
                <span class="ident">roads</span>: <span class="ident">i</span>.<span class="ident">roads</span>.<span class="ident">iter</span>().<span class="ident">map</span>(<span class="op">|</span><span class="ident">id</span><span class="op">|</span> <span class="ident">road_id_mapping</span>[<span class="ident">id</span>]).<span class="ident">collect</span>(),
                <span class="ident">merged</span>: <span class="op">!</span><span class="ident">raw</span>.<span class="ident">intersections</span>[<span class="kw-2">&amp;</span><span class="ident">i</span>.<span class="ident">id</span>].<span class="ident">trim_roads_for_merging</span>.<span class="ident">is_empty</span>(),
            });
            <span class="ident">intersection_id_mapping</span>.<span class="ident">insert</span>(<span class="ident">i</span>.<span class="ident">id</span>, <span class="ident">id</span>);
        }

        <span class="ident">timer</span>.<span class="ident">start_iter</span>(<span class="string">&quot;expand roads to lanes&quot;</span>, <span class="ident">initial_map</span>.<span class="ident">roads</span>.<span class="ident">len</span>());
        <span class="kw">for</span> (<span class="kw">_</span>, <span class="ident">r</span>) <span class="kw">in</span> <span class="ident">initial_map</span>.<span class="ident">roads</span> {
            <span class="ident">timer</span>.<span class="ident">next</span>();

            <span class="kw">let</span> <span class="ident">road_id</span> <span class="op">=</span> <span class="ident">road_id_mapping</span>[<span class="kw-2">&amp;</span><span class="ident">r</span>.<span class="ident">id</span>];
            <span class="kw">let</span> <span class="ident">i1</span> <span class="op">=</span> <span class="ident">intersection_id_mapping</span>[<span class="kw-2">&amp;</span><span class="ident">r</span>.<span class="ident">src_i</span>];
            <span class="kw">let</span> <span class="ident">i2</span> <span class="op">=</span> <span class="ident">intersection_id_mapping</span>[<span class="kw-2">&amp;</span><span class="ident">r</span>.<span class="ident">dst_i</span>];

            <span class="kw">let</span> <span class="ident">raw_road</span> <span class="op">=</span> <span class="kw-2">&amp;</span><span class="ident">raw</span>.<span class="ident">roads</span>[<span class="kw-2">&amp;</span><span class="ident">r</span>.<span class="ident">id</span>];
            <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">road</span> <span class="op">=</span> <span class="ident">Road</span> {
                <span class="ident">id</span>: <span class="ident">road_id</span>,
                <span class="ident">osm_tags</span>: <span class="ident">raw_road</span>.<span class="ident">osm_tags</span>.<span class="ident">clone</span>(),
                <span class="ident">turn_restrictions</span>: <span class="ident">raw_road</span>
                    .<span class="ident">turn_restrictions</span>
                    .<span class="ident">iter</span>()
                    .<span class="ident">filter_map</span>(<span class="op">|</span>(<span class="ident">rt</span>, <span class="ident">to</span>)<span class="op">|</span> {
                        <span class="comment">// Missing roads are filtered (like some service roads) or clipped out</span>
                        <span class="ident">road_id_mapping</span>.<span class="ident">get</span>(<span class="ident">to</span>).<span class="ident">map</span>(<span class="op">|</span><span class="ident">to</span><span class="op">|</span> (<span class="kw-2">*</span><span class="ident">rt</span>, <span class="kw-2">*</span><span class="ident">to</span>))
                    })
                    .<span class="ident">collect</span>(),
                <span class="ident">complicated_turn_restrictions</span>: <span class="ident">raw_road</span>
                    .<span class="ident">complicated_turn_restrictions</span>
                    .<span class="ident">iter</span>()
                    .<span class="ident">filter_map</span>(<span class="op">|</span>(<span class="ident">via</span>, <span class="ident">to</span>)<span class="op">|</span> {
                        <span class="kw">if</span> <span class="kw">let</span> (<span class="prelude-val">Some</span>(<span class="ident">via</span>), <span class="prelude-val">Some</span>(<span class="ident">to</span>)) <span class="op">=</span>
                            (<span class="ident">road_id_mapping</span>.<span class="ident">get</span>(<span class="ident">via</span>), <span class="ident">road_id_mapping</span>.<span class="ident">get</span>(<span class="ident">to</span>))
                        {
                            <span class="prelude-val">Some</span>((<span class="kw-2">*</span><span class="ident">via</span>, <span class="kw-2">*</span><span class="ident">to</span>))
                        } <span class="kw">else</span> {
                            <span class="macro">warn!</span>(
                                <span class="string">&quot;Complicated turn restriction from {} has invalid via {} or dst {}&quot;</span>,
                                <span class="ident">r</span>.<span class="ident">id</span>, <span class="ident">via</span>, <span class="ident">to</span>
                            );
                            <span class="prelude-val">None</span>
                        }
                    })
                    .<span class="ident">collect</span>(),
                <span class="ident">orig_id</span>: <span class="ident">r</span>.<span class="ident">id</span>,
                <span class="ident">lanes</span>: <span class="ident">Vec::new</span>(),
                <span class="ident">center_pts</span>: <span class="ident">r</span>.<span class="ident">trimmed_center_pts</span>,
                <span class="ident">untrimmed_center_pts</span>: <span class="ident">raw</span>.<span class="ident">untrimmed_road_geometry</span>(<span class="ident">r</span>.<span class="ident">id</span>).<span class="ident">unwrap</span>().<span class="number">0</span>,
                <span class="ident">src_i</span>: <span class="ident">i1</span>,
                <span class="ident">dst_i</span>: <span class="ident">i2</span>,
                <span class="ident">speed_limit</span>: <span class="ident">Speed::ZERO</span>,
                <span class="ident">zorder</span>: <span class="ident">raw_road</span>.<span class="ident">get_zorder</span>(),
                <span class="ident">access_restrictions</span>: <span class="ident">AccessRestrictions::new</span>(),
                <span class="ident">percent_incline</span>: <span class="ident">raw_road</span>.<span class="ident">percent_incline</span>,
                <span class="ident">crosswalk_forward</span>: <span class="ident">raw_road</span>.<span class="ident">crosswalk_forward</span>,
                <span class="ident">crosswalk_backward</span>: <span class="ident">raw_road</span>.<span class="ident">crosswalk_backward</span>,
                <span class="ident">transit_stops</span>: <span class="ident">BTreeSet::new</span>(),
            };
            <span class="ident">road</span>.<span class="ident">speed_limit</span> <span class="op">=</span> <span class="ident">road</span>.<span class="ident">speed_limit_from_osm</span>();
            <span class="ident">road</span>.<span class="ident">access_restrictions</span> <span class="op">=</span> <span class="ident">road</span>.<span class="ident">access_restrictions_from_osm</span>();

            <span class="ident">road</span>.<span class="ident">recreate_lanes</span>(<span class="ident">r</span>.<span class="ident">lane_specs_ltr</span>);
            <span class="kw">for</span> <span class="ident">lane</span> <span class="kw">in</span> <span class="kw-2">&amp;</span><span class="ident">road</span>.<span class="ident">lanes</span> {
                <span class="ident">map</span>.<span class="ident">intersections</span>[<span class="ident">lane</span>.<span class="ident">src_i</span>.<span class="number">0</span>].<span class="ident">outgoing_lanes</span>.<span class="ident">push</span>(<span class="ident">lane</span>.<span class="ident">id</span>);
                <span class="ident">map</span>.<span class="ident">intersections</span>[<span class="ident">lane</span>.<span class="ident">dst_i</span>.<span class="number">0</span>].<span class="ident">incoming_lanes</span>.<span class="ident">push</span>(<span class="ident">lane</span>.<span class="ident">id</span>);
            }

            <span class="ident">map</span>.<span class="ident">roads</span>.<span class="ident">push</span>(<span class="ident">road</span>);
        }

        <span class="kw">for</span> <span class="ident">i</span> <span class="kw">in</span> <span class="ident">map</span>.<span class="ident">intersections</span>.<span class="ident">iter_mut</span>() {
            <span class="kw">if</span> <span class="ident">i</span>.<span class="ident">is_border</span>() <span class="op">&amp;&amp;</span> <span class="ident">i</span>.<span class="ident">roads</span>.<span class="ident">len</span>() <span class="op">!</span><span class="op">=</span> <span class="number">1</span> {
                <span class="macro">panic!</span>(
                    <span class="string">&quot;{} ({}) is a border, but is connected to &gt;1 road: {:?}&quot;</span>,
                    <span class="ident">i</span>.<span class="ident">id</span>, <span class="ident">i</span>.<span class="ident">orig_id</span>, <span class="ident">i</span>.<span class="ident">roads</span>
                );
            }
            <span class="kw">if</span> <span class="ident">i</span>.<span class="ident">intersection_type</span> <span class="op">==</span> <span class="ident">IntersectionType::TrafficSignal</span> {
                <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">ok</span> <span class="op">=</span> <span class="bool-val">false</span>;
                <span class="kw">for</span> <span class="ident">r</span> <span class="kw">in</span> <span class="kw-2">&amp;</span><span class="ident">i</span>.<span class="ident">roads</span> {
                    <span class="comment">// Skip signals only connected to roads under construction or purely to control</span>
                    <span class="comment">// light rail tracks.</span>
                    <span class="kw">if</span> <span class="op">!</span><span class="ident">map</span>.<span class="ident">roads</span>[<span class="ident">r</span>.<span class="number">0</span>].<span class="ident">osm_tags</span>.<span class="ident">is</span>(<span class="ident">osm::HIGHWAY</span>, <span class="string">&quot;construction&quot;</span>)
                        <span class="op">&amp;&amp;</span> <span class="op">!</span><span class="ident">map</span>.<span class="ident">roads</span>[<span class="ident">r</span>.<span class="number">0</span>].<span class="ident">is_light_rail</span>()
                    {
                        <span class="ident">ok</span> <span class="op">=</span> <span class="bool-val">true</span>;
                        <span class="kw">break</span>;
                    }
                }
                <span class="kw">if</span> <span class="op">!</span><span class="ident">ok</span> {
                    <span class="ident">i</span>.<span class="ident">intersection_type</span> <span class="op">=</span> <span class="ident">IntersectionType::StopSign</span>;
                }
            }
        }

        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">all_turns</span> <span class="op">=</span> <span class="ident">Vec::new</span>();
        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">connectivity_problems</span> <span class="op">=</span> <span class="number">0</span>;
        <span class="kw">for</span> <span class="ident">i</span> <span class="kw">in</span> <span class="kw-2">&amp;</span><span class="ident">map</span>.<span class="ident">intersections</span> {
            <span class="kw">if</span> <span class="ident">i</span>.<span class="ident">is_border</span>() <span class="op">|</span><span class="op">|</span> <span class="ident">i</span>.<span class="ident">is_closed</span>() {
                <span class="kw">continue</span>;
            }
            <span class="kw">if</span> <span class="op">!</span><span class="ident">i</span>.<span class="ident">is_footway</span>(<span class="kw-2">&amp;</span><span class="ident">map</span>) <span class="op">&amp;&amp;</span> (<span class="ident">i</span>.<span class="ident">incoming_lanes</span>.<span class="ident">is_empty</span>() <span class="op">|</span><span class="op">|</span> <span class="ident">i</span>.<span class="ident">outgoing_lanes</span>.<span class="ident">is_empty</span>()) {
                <span class="macro">warn!</span>(<span class="string">&quot;{} is orphaned!&quot;</span>, <span class="ident">i</span>.<span class="ident">orig_id</span>);
                <span class="kw">continue</span>;
            }

            <span class="kw">let</span> <span class="ident">results</span> <span class="op">=</span> <span class="ident">turns::make_all_turns</span>(<span class="kw-2">&amp;</span><span class="ident">map</span>, <span class="ident">i</span>);
            <span class="kw">if</span> <span class="ident">turns::verify_vehicle_connectivity</span>(<span class="kw-2">&amp;</span><span class="ident">results</span>, <span class="ident">i</span>, <span class="kw-2">&amp;</span><span class="ident">map</span>).<span class="ident">is_err</span>() {
                <span class="ident">connectivity_problems</span> <span class="op">+</span><span class="op">=</span> <span class="number">1</span>;
            }
            <span class="ident">all_turns</span>.<span class="ident">extend</span>(<span class="ident">results</span>);
        }
        <span class="macro">error!</span>(
            <span class="string">&quot;{} total intersections have some connectivity problem&quot;</span>,
            <span class="ident">connectivity_problems</span>
        );
        <span class="kw">for</span> <span class="ident">t</span> <span class="kw">in</span> <span class="ident">all_turns</span> {
            <span class="macro">assert!</span>(<span class="ident">map</span>.<span class="ident">maybe_get_t</span>(<span class="ident">t</span>.<span class="ident">id</span>).<span class="ident">is_none</span>());
            <span class="kw">if</span> <span class="ident">t</span>.<span class="ident">geom</span>.<span class="ident">length</span>() <span class="op">&lt;</span> <span class="ident">geom::EPSILON_DIST</span> {
                <span class="macro">warn!</span>(<span class="string">&quot;{} is a very short turn&quot;</span>, <span class="ident">t</span>.<span class="ident">id</span>);
            }
            <span class="ident">map</span>.<span class="ident">intersections</span>[<span class="ident">t</span>.<span class="ident">id</span>.<span class="ident">parent</span>.<span class="number">0</span>].<span class="ident">turns</span>.<span class="ident">push</span>(<span class="ident">t</span>);
        }

        <span class="ident">timer</span>.<span class="ident">start</span>(<span class="string">&quot;find blackholes&quot;</span>);
        <span class="kw">for</span> <span class="ident">l</span> <span class="kw">in</span> <span class="ident">connectivity::find_scc</span>(<span class="kw-2">&amp;</span><span class="ident">map</span>, <span class="ident">PathConstraints::Car</span>).<span class="number">1</span> {
            <span class="ident">map</span>.<span class="ident">mut_lane</span>(<span class="ident">l</span>).<span class="ident">driving_blackhole</span> <span class="op">=</span> <span class="bool-val">true</span>;
        }
        <span class="kw">for</span> <span class="ident">l</span> <span class="kw">in</span> <span class="ident">connectivity::find_scc</span>(<span class="kw-2">&amp;</span><span class="ident">map</span>, <span class="ident">PathConstraints::Bike</span>).<span class="number">1</span> {
            <span class="ident">map</span>.<span class="ident">mut_lane</span>(<span class="ident">l</span>).<span class="ident">biking_blackhole</span> <span class="op">=</span> <span class="bool-val">true</span>;
        }
        <span class="ident">timer</span>.<span class="ident">stop</span>(<span class="string">&quot;find blackholes&quot;</span>);

        <span class="ident">map</span>.<span class="ident">buildings</span> <span class="op">=</span>
            <span class="ident">buildings::make_all_buildings</span>(<span class="kw-2">&amp;</span><span class="ident">raw</span>.<span class="ident">buildings</span>, <span class="kw-2">&amp;</span><span class="ident">map</span>, <span class="ident">opts</span>.<span class="ident">keep_bldg_tags</span>, <span class="ident">timer</span>);

        <span class="ident">map</span>.<span class="ident">parking_lots</span> <span class="op">=</span> <span class="ident">parking_lots::make_all_parking_lots</span>(
            <span class="kw-2">&amp;</span><span class="ident">raw</span>.<span class="ident">parking_lots</span>,
            <span class="kw-2">&amp;</span><span class="ident">raw</span>.<span class="ident">parking_aisles</span>,
            <span class="kw-2">&amp;</span><span class="ident">map</span>,
            <span class="ident">timer</span>,
        );

        <span class="ident">map</span>.<span class="ident">zones</span> <span class="op">=</span> <span class="ident">Zone::make_all</span>(<span class="kw-2">&amp;</span><span class="ident">map</span>);

        <span class="kw">for</span> <span class="ident">a</span> <span class="kw">in</span> <span class="kw-2">&amp;</span><span class="ident">raw</span>.<span class="ident">areas</span> {
            <span class="ident">map</span>.<span class="ident">areas</span>.<span class="ident">push</span>(<span class="ident">Area</span> {
                <span class="ident">id</span>: <span class="ident">AreaID</span>(<span class="ident">map</span>.<span class="ident">areas</span>.<span class="ident">len</span>()),
                <span class="ident">area_type</span>: <span class="ident">a</span>.<span class="ident">area_type</span>,
                <span class="ident">polygon</span>: <span class="ident">a</span>.<span class="ident">polygon</span>.<span class="ident">clone</span>(),
                <span class="ident">osm_tags</span>: <span class="ident">a</span>.<span class="ident">osm_tags</span>.<span class="ident">clone</span>(),
                <span class="ident">osm_id</span>: <span class="prelude-val">Some</span>(<span class="ident">a</span>.<span class="ident">osm_id</span>),
            });
        }

        <span class="ident">bridges::find_bridges</span>(<span class="kw-2">&amp;mut</span> <span class="ident">map</span>.<span class="ident">roads</span>, <span class="kw-2">&amp;</span><span class="ident">map</span>.<span class="ident">bounds</span>, <span class="ident">timer</span>);

        <span class="ident">map</span>.<span class="ident">recalculate_all_movements</span>(<span class="ident">timer</span>);

        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">stop_signs</span>: <span class="ident">BTreeMap</span><span class="op">&lt;</span><span class="ident">IntersectionID</span>, <span class="ident">ControlStopSign</span><span class="op">&gt;</span> <span class="op">=</span> <span class="ident">BTreeMap::new</span>();
        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">traffic_signals</span>: <span class="ident">BTreeMap</span><span class="op">&lt;</span><span class="ident">IntersectionID</span>, <span class="ident">ControlTrafficSignal</span><span class="op">&gt;</span> <span class="op">=</span> <span class="ident">BTreeMap::new</span>();
        <span class="kw">for</span> <span class="ident">i</span> <span class="kw">in</span> <span class="kw-2">&amp;</span><span class="ident">map</span>.<span class="ident">intersections</span> {
            <span class="kw">match</span> <span class="ident">i</span>.<span class="ident">intersection_type</span> {
                <span class="ident">IntersectionType::StopSign</span> =&gt; {
                    <span class="ident">stop_signs</span>.<span class="ident">insert</span>(<span class="ident">i</span>.<span class="ident">id</span>, <span class="ident">ControlStopSign::new</span>(<span class="kw-2">&amp;</span><span class="ident">map</span>, <span class="ident">i</span>.<span class="ident">id</span>));
                }
                <span class="ident">IntersectionType::TrafficSignal</span> =&gt; {
                    <span class="kw">if</span> <span class="ident">i</span>.<span class="ident">movements</span>.<span class="ident">is_empty</span>() {
                        <span class="macro">error!</span>(<span class="string">&quot;Traffic signal at {} downgraded to stop sign, because it has no movements -- probably roads under construction&quot;</span>, <span class="ident">i</span>.<span class="ident">orig_id</span>);
                        <span class="ident">stop_signs</span>.<span class="ident">insert</span>(<span class="ident">i</span>.<span class="ident">id</span>, <span class="ident">ControlStopSign::new</span>(<span class="kw-2">&amp;</span><span class="ident">map</span>, <span class="ident">i</span>.<span class="ident">id</span>));
                    } <span class="kw">else</span> {
                        <span class="ident">traffic_signals</span>
                            .<span class="ident">insert</span>(<span class="ident">i</span>.<span class="ident">id</span>, <span class="ident">ControlTrafficSignal::validating_new</span>(<span class="kw-2">&amp;</span><span class="ident">map</span>, <span class="ident">i</span>.<span class="ident">id</span>));
                    }
                }
                <span class="ident">IntersectionType::Border</span> <span class="op">|</span> <span class="ident">IntersectionType::Construction</span> =&gt; {}
            };
        }
        <span class="ident">map</span>.<span class="ident">stop_signs</span> <span class="op">=</span> <span class="ident">stop_signs</span>;
        <span class="ident">map</span>.<span class="ident">traffic_signals</span> <span class="op">=</span> <span class="ident">traffic_signals</span>;
        <span class="comment">// Fix up the type for any problematic traffic signals</span>
        <span class="kw">for</span> <span class="ident">i</span> <span class="kw">in</span> <span class="ident">map</span>.<span class="ident">stop_signs</span>.<span class="ident">keys</span>() {
            <span class="ident">map</span>.<span class="ident">intersections</span>[<span class="ident">i</span>.<span class="number">0</span>].<span class="ident">intersection_type</span> <span class="op">=</span> <span class="ident">IntersectionType::StopSign</span>;
        }

        <span class="ident">traffic_signals::synchronize</span>(<span class="kw-2">&amp;mut</span> <span class="ident">map</span>);

        <span class="ident">timer</span>.<span class="ident">start</span>(<span class="string">&quot;setup pathfinding&quot;</span>);
        <span class="kw">let</span> <span class="ident">engine</span> <span class="op">=</span> <span class="kw">if</span> <span class="ident">opts</span>.<span class="ident">skip_ch</span> {
            <span class="ident">CreateEngine::Dijkstra</span>
        } <span class="kw">else</span> {
            <span class="ident">CreateEngine::CH</span>
        };
        <span class="ident">map</span>.<span class="ident">pathfinder</span> <span class="op">=</span> <span class="ident">Pathfinder::new</span>(<span class="kw-2">&amp;</span><span class="ident">map</span>, <span class="ident">map</span>.<span class="ident">routing_params</span>().<span class="ident">clone</span>(), <span class="kw-2">&amp;</span><span class="ident">engine</span>, <span class="ident">timer</span>);
        <span class="ident">timer</span>.<span class="ident">stop</span>(<span class="string">&quot;setup pathfinding&quot;</span>);

        <span class="ident">transit::finalize_transit</span>(<span class="kw-2">&amp;mut</span> <span class="ident">map</span>, <span class="kw-2">&amp;</span><span class="ident">raw</span>, <span class="ident">timer</span>);
        <span class="ident">timer</span>.<span class="ident">start</span>(<span class="string">&quot;setup pathfinding for people using transit&quot;</span>);
        <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">pathfinder</span> <span class="op">=</span> <span class="ident">std::mem::replace</span>(<span class="kw-2">&amp;mut</span> <span class="ident">map</span>.<span class="ident">pathfinder</span>, <span class="ident">Pathfinder::empty</span>());
        <span class="ident">pathfinder</span>.<span class="ident">finalize_transit</span>(<span class="kw-2">&amp;</span><span class="ident">map</span>, <span class="kw-2">&amp;</span><span class="ident">engine</span>);
        <span class="ident">map</span>.<span class="ident">pathfinder</span> <span class="op">=</span> <span class="ident">pathfinder</span>;
        <span class="ident">timer</span>.<span class="ident">stop</span>(<span class="string">&quot;setup pathfinding for people using transit&quot;</span>);

        <span class="ident">map</span>
    }
}

<span class="doccomment">/// Snap points to an exact Position along the nearest lane. If the result doesn&#39;t contain a</span>
<span class="doccomment">/// requested point, then there was no matching lane close enough.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">match_points_to_lanes</span><span class="op">&lt;</span><span class="ident">F</span>: <span class="ident">Fn</span>(<span class="kw-2">&amp;</span><span class="ident">Lane</span>) -&gt; <span class="ident">bool</span><span class="op">&gt;</span>(
    <span class="ident">map</span>: <span class="kw-2">&amp;</span><span class="ident">Map</span>,
    <span class="ident">pts</span>: <span class="ident">HashSet</span><span class="op">&lt;</span><span class="ident">HashablePt2D</span><span class="op">&gt;</span>,
    <span class="ident">filter</span>: <span class="ident">F</span>,
    <span class="ident">buffer</span>: <span class="ident">Distance</span>,
    <span class="ident">max_dist_away</span>: <span class="ident">Distance</span>,
    <span class="ident">timer</span>: <span class="kw-2">&amp;mut</span> <span class="ident">Timer</span>,
) -&gt; <span class="ident">HashMap</span><span class="op">&lt;</span><span class="ident">HashablePt2D</span>, <span class="ident">Position</span><span class="op">&gt;</span> {
    <span class="kw">if</span> <span class="ident">pts</span>.<span class="ident">is_empty</span>() {
        <span class="kw">return</span> <span class="ident">HashMap::new</span>();
    }

    <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">closest</span>: <span class="ident">FindClosest</span><span class="op">&lt;</span><span class="ident">LaneID</span><span class="op">&gt;</span> <span class="op">=</span> <span class="ident">FindClosest::new</span>(<span class="ident">map</span>.<span class="ident">get_bounds</span>());
    <span class="ident">timer</span>.<span class="ident">start_iter</span>(<span class="string">&quot;index lanes&quot;</span>, <span class="ident">map</span>.<span class="ident">all_lanes</span>().<span class="ident">count</span>());
    <span class="kw">for</span> <span class="ident">l</span> <span class="kw">in</span> <span class="ident">map</span>.<span class="ident">all_lanes</span>() {
        <span class="ident">timer</span>.<span class="ident">next</span>();
        <span class="kw">if</span> <span class="ident">filter</span>(<span class="ident">l</span>) <span class="op">&amp;&amp;</span> <span class="ident">l</span>.<span class="ident">length</span>() <span class="op">&gt;</span> (<span class="ident">buffer</span> <span class="op">+</span> <span class="ident">EPSILON_DIST</span>) <span class="op">*</span> <span class="number">2.0</span> {
            <span class="ident">closest</span>.<span class="ident">add</span>(
                <span class="ident">l</span>.<span class="ident">id</span>,
                <span class="ident">l</span>.<span class="ident">lane_center_pts</span>
                    .<span class="ident">exact_slice</span>(<span class="ident">buffer</span>, <span class="ident">l</span>.<span class="ident">length</span>() <span class="op">-</span> <span class="ident">buffer</span>)
                    .<span class="ident">points</span>(),
            );
        }
    }

    <span class="comment">// For each point, find the closest point to any lane, using the quadtree to prune the</span>
    <span class="comment">// search.</span>
    <span class="ident">timer</span>
        .<span class="ident">parallelize</span>(
            <span class="string">&quot;find closest lane point&quot;</span>,
            <span class="ident">pts</span>.<span class="ident">into_iter</span>().<span class="ident">collect</span>(),
            <span class="op">|</span><span class="ident">query_pt</span><span class="op">|</span> {
                <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>((<span class="ident">l</span>, <span class="ident">pt</span>)) <span class="op">=</span> <span class="ident">closest</span>.<span class="ident">closest_pt</span>(<span class="ident">query_pt</span>.<span class="ident">to_pt2d</span>(), <span class="ident">max_dist_away</span>) {
                    <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">dist_along</span>) <span class="op">=</span> <span class="ident">map</span>.<span class="ident">get_l</span>(<span class="ident">l</span>).<span class="ident">dist_along_of_point</span>(<span class="ident">pt</span>) {
                        <span class="prelude-val">Some</span>((<span class="ident">query_pt</span>, <span class="ident">Position::new</span>(<span class="ident">l</span>, <span class="ident">dist_along</span>)))
                    } <span class="kw">else</span> {
                        <span class="macro">panic!</span>(
                            <span class="string">&quot;{} isn&#39;t on {} according to dist_along_of_point, even though \
                             closest_point thinks it is.\n{}&quot;</span>,
                            <span class="ident">pt</span>,
                            <span class="ident">l</span>,
                            <span class="ident">map</span>.<span class="ident">get_l</span>(<span class="ident">l</span>).<span class="ident">lane_center_pts</span>
                        );
                    }
                } <span class="kw">else</span> {
                    <span class="prelude-val">None</span>
                }
            },
        )
        .<span class="ident">into_iter</span>()
        .<span class="ident">flatten</span>()
        .<span class="ident">collect</span>()
}

<span class="doccomment">/// Adjust the path to start on the polygon&#39;s border, not center.</span>
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">trim_path</span>(<span class="ident">poly</span>: <span class="kw-2">&amp;</span><span class="ident">Polygon</span>, <span class="ident">path</span>: <span class="ident">Line</span>) -&gt; <span class="ident">Line</span> {
    <span class="kw">for</span> <span class="ident">line</span> <span class="kw">in</span> <span class="ident">poly</span>.<span class="ident">points</span>().<span class="ident">windows</span>(<span class="number">2</span>) {
        <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Ok</span>(<span class="ident">l1</span>) <span class="op">=</span> <span class="ident">Line::new</span>(<span class="ident">line</span>[<span class="number">0</span>], <span class="ident">line</span>[<span class="number">1</span>]) {
            <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">hit</span>) <span class="op">=</span> <span class="ident">l1</span>.<span class="ident">intersection</span>(<span class="kw-2">&amp;</span><span class="ident">path</span>) {
                <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Ok</span>(<span class="ident">l2</span>) <span class="op">=</span> <span class="ident">Line::new</span>(<span class="ident">hit</span>, <span class="ident">path</span>.<span class="ident">pt2</span>()) {
                    <span class="kw">return</span> <span class="ident">l2</span>;
                }
            }
        }
    }
    <span class="comment">// Just give up</span>
    <span class="ident">path</span>
}
</code></pre></div>
</section><section id="search" class="content hidden"></section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-current-crate="map_model" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.59.0 (9d1b2106e 2022-02-23)" ></div>
</body></html>