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< html >
< head >
< link rel = "stylesheet" href = "../../css/spectre.min.css" >
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< script src = "https://cdn.jsdelivr.net/gh/mourner/simplify-js@1.2.4/simplify.min.js" > < / script >
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< script src = "https://code.jquery.com/jquery-3.6.0.min.js"
integrity="sha256-/xUj+3OJU5yExlq6GSYGSHk7tPXikynS7ogEvDej/m4=" crossorigin="anonymous">< / script >
< / head >
< body >
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< p id = "status" > No course< / p >
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< div >
< button id = "upload" class = "btn btn-primary" disabled = "true" > Upload to Device< / button >
< button id = "download" class = "btn btn-primary" disabled = "true" > Download Course< / button >
< / div >
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< script src = "../../core/lib/customize.js" > < / script >
< script src = "./maptools.js" > < / script >
< script >
const url = "https://overpass-api.de/api/interpreter";
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let query = `[bbox:38.4829,-121.8694,38.7110,-121.6215][out:json][timeout:5];way["name"="Davis Golf Course"];map_to_area ->.golfcourse;way["golf"="hole"](area.golfcourse)->.holes;(relation["golf"="fairway"](area.golfcourse);way["golf"~"^(green|tee|water_hazard|bunker|fairway)"](area.golfcourse);)->.features;.holes out geom;.features out geom;`;
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let course_input = null;
function findNodeCoordinates(elements, id) {
for (let i = 0; i < elements.length ; i + + ) {
if (elements[i].type === "node" & & elements[i].id === id) {
let thing = (({ lat, lon }) => ({ lat, lon }))(elements[i]);
return thing;
}
}
console.error("node id: ", id, " not found");
}
function processFeatures(course_verbose) {
let course_processed = {
holes: {}
};
for (let i = 0; i < course_verbose.length ; i + + ) {
const element = course_verbose[i];
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if (element.tags.golf === "hole") {
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// if we find a high-level hole feature
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// todo check if hole exists
let current_hole = parseInt(element.tags.ref); //subsequent way features should be applied to the current hole
let tees = []
Object.keys(element.tags).forEach((key) => {
if (key.includes("dist")) {
tees.push(Math.round(element.tags[key]));
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}
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})
var hole = {
hole_number: current_hole,
handicap: parseInt(element.tags.handicap),
par: parseInt(element.tags.par),
nodesXY: preprocessCoords(element.geometry, element.geometry[0]),
tees: tees.sort(),
way: element.geometry,
features: [],
angle: 0,
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}
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hole.angle = angle(hole.nodesXY[0], hole.nodesXY[hole.nodesXY.length - 1])
course_processed.holes[current_hole.toString()] = hole;
}
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else {
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if (!("ref" in element.tags)) continue;
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if (element.type == "relation") {
for (member of element.members) {
if (member.role === "outer") break; // only use the outer because it is overwritten anyway
}
Object.assign(element, { "geometry": member.geometry });
}
// if we find a feature add it to the corresponding hole
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let active_holes = element.tags.ref.split(";"); // a feature can be on more than one hole
for (feature_hole of active_holes) {
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let new_feature = {
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nodes: preprocessCoords(element.geometry, course_processed.holes[feature_hole].way[0]),
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type: element.tags.golf,
id: element.id,
}
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course_processed.holes[feature_hole].features.push(new_feature);
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}
}
}
return course_processed;
}
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function preprocessCoords(coord_array, origin) {
let many_points = arraytoXY(coord_array, origin);
let less_points = simplify(many_points, 2, true); // from simplify-js
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// convert to int to save some memory
less_points = less_points.map(function (pt) {
return { x: Math.round(pt.x), y: Math.round(pt.y) }
});
return less_points;
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}
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var courses = [];
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var course_name = "Davis";
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$("#upload").click(function () {
sendCustomizedApp({
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storage: courses
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});
});
$("#download").click(function () {
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downloadObjectAsJSON(course, "golfcourse-" + course_name);
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});
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// download info from the course
$.post(url, query, function (result) {
course_input = result;
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console.log(course_input);
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out = processFeatures(course_input.elements);
console.log(out);
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courses.push({
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name: "golfcourse-" + course_name + ".json",
content: JSON.parse(JSON.stringify(out)) // deep copy
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});
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$('#status').text("Course retrieved!");
$('#upload').attr("disabled", false);
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$('#download').attr("disabled", false);
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})
< / script >
< / body >
< / html >
