397 lines
17 KiB
JavaScript
397 lines
17 KiB
JavaScript
'use strict';
|
|
|
|
import * as Vector from './js/vectorlib.js';
|
|
import * as Bezier from './js/bezierlib.js';
|
|
import * as Utils from './js/utillib.js';
|
|
|
|
// CONFIG
|
|
const bezierGradeResolution = 80;
|
|
const bezierLengthResolution = 80;
|
|
const bezierCurvatureResolution = 80;
|
|
const padding = 500;
|
|
const zoomFactor = 1.1;
|
|
const trackWidth = {
|
|
base: 110,
|
|
min: 3,
|
|
max: 90,
|
|
}
|
|
const signSize = {
|
|
base: 4,
|
|
min: 0.05,
|
|
max: 1.8
|
|
}
|
|
|
|
const scaleCullBaseDistance = 500;
|
|
|
|
// Lower values make shorter track sections show their marker further out.
|
|
const scaleCullBaseSectionLength = 22;
|
|
const scaleCullBaseSectionLengthSpeedboard = 100;
|
|
|
|
// How long a track section can go without changing before another marker is placed. Increases readability
|
|
const maxSectionLength = 700;
|
|
|
|
// Zoom levels at which different markers get swapped in/out.
|
|
const scaleCullThresholds = [
|
|
{scale:1},
|
|
{scale:2},
|
|
{scale:3},
|
|
{scale:6},
|
|
{scale:12},
|
|
{scale:24},
|
|
{scale:60},
|
|
];
|
|
|
|
// CODE
|
|
const map = document.getElementById('map');
|
|
const map_container = document.getElementById('mapContainer');
|
|
const map_navigator = document.getElementById('mapNavigator');
|
|
const zoomLevelDisplay = document.getElementById('zoomLevelDisplay');
|
|
const styleRoot = document.querySelector(':root');
|
|
const svgns = map.getAttribute('xmlns');
|
|
|
|
const map_rails = document.createElementNS(svgns, 'g');
|
|
map_rails.setAttribute('id', 'map_rails');
|
|
map.appendChild(map_rails);
|
|
|
|
//const map_markers = document.createElementNS(svgns, 'g');
|
|
//map_markers.setAttribute('id', 'map_markers');
|
|
//map.appendChild(map_markers);
|
|
const map_markers = document.getElementById('mapMarkers');
|
|
|
|
let mapData = [];
|
|
let trackNameCounting = {};
|
|
let poiData = [];
|
|
let tracks = [];
|
|
let markers = [];
|
|
|
|
let currentMapNav = {};
|
|
let previousMapScale = -1;
|
|
|
|
document.addEventListener('DOMContentLoaded', async () => {
|
|
await loadTrackData('trackdata_dv.json');
|
|
mapScrollSetup();
|
|
});
|
|
|
|
async function loadTrackData(file){
|
|
mapData = await (await fetch(new Request(file))).json();
|
|
establishDimensions();
|
|
fillSvg();
|
|
}
|
|
|
|
/** Handling for the map scrolling and zooming */
|
|
function mapScrollSetup(){
|
|
let mapNav = {x:currentMapNav.x, y:currentMapNav.y, scale:currentMapNav.scale};
|
|
let prevMouse = {x:mapNav.x, y:mapNav.y, scale:mapNav.scale};
|
|
const mouseDownHandler = e => {
|
|
map_container.style.cursor = 'grabbing';
|
|
prevMouse.x = e.clientX;
|
|
prevMouse.y = e.clientY;
|
|
|
|
document.addEventListener('mousemove', mouseMoveHandler);
|
|
document.addEventListener('mouseup', mouseUpHandler);
|
|
};
|
|
const mouseMoveHandler = e => {
|
|
mapNav.x += prevMouse.x-e.clientX;
|
|
mapNav.y += prevMouse.y-e.clientY;
|
|
|
|
prevMouse.x = e.clientX;
|
|
prevMouse.y = e.clientY;
|
|
};
|
|
const mouseUpHandler = () => {
|
|
map_container.style.removeProperty('cursor');
|
|
document.removeEventListener('mousemove', mouseMoveHandler);
|
|
document.removeEventListener('mouseup', mouseUpHandler);
|
|
};
|
|
const zoomHandler = e => {
|
|
let rect = map_container.getBoundingClientRect();
|
|
let cursorLocal = {
|
|
x: -e.clientX - rect.left,
|
|
y: -e.clientY - rect.top
|
|
};
|
|
let scaleMult = 1;
|
|
if(e.deltaY < 0){
|
|
scaleMult = zoomFactor;
|
|
}else if(e.deltaY > 0){
|
|
scaleMult = 1/zoomFactor;
|
|
}
|
|
mapNav.x = cursorLocal.x - scaleMult * (cursorLocal.x-mapNav.x);
|
|
mapNav.y = cursorLocal.y - scaleMult * (cursorLocal.y-mapNav.y);
|
|
mapNav.scale *= scaleMult;
|
|
};
|
|
|
|
let prevMapNav = {};
|
|
const navUpdate = () => {
|
|
if(prevMapNav.x != currentMapNav.x || prevMapNav.y != currentMapNav.y || prevMapNav.scale != currentMapNav.scale){
|
|
updateMapview(mapNav);
|
|
prevMapNav.x = currentMapNav.x;
|
|
prevMapNav.y = currentMapNav.y;
|
|
prevMapNav.scale = currentMapNav.scale;
|
|
}
|
|
requestAnimationFrame(navUpdate);
|
|
}
|
|
|
|
map_container.addEventListener('mousedown', mouseDownHandler);
|
|
map_container.addEventListener('wheel', zoomHandler);
|
|
navUpdate();
|
|
}
|
|
|
|
/** Readjust map view to focus on position */
|
|
function updateMapview(navData = {x:0, y:0, scale:1}){
|
|
currentMapNav = navData;
|
|
map_navigator.style.transform = `translate(${-navData.x}px, ${-navData.y}px) scale(${navData.scale})`;
|
|
if(navData.scale !== previousMapScale){
|
|
zoomLevelDisplay.innerHTML = `Zoom: ${Math.round(navData.scale*100)/100}x`;
|
|
let dirtyScale = previousMapScale < 0;
|
|
for(const cullThreshold of scaleCullThresholds){
|
|
if(dirtyScale || (previousMapScale < cullThreshold.scale && navData.scale > cullThreshold.scale) || (previousMapScale > cullThreshold.scale && navData.scale < cullThreshold.scale)){
|
|
dirtyScale = true;
|
|
break;
|
|
}
|
|
}
|
|
map_rails.setAttribute('stroke-width', Utils.clamp(trackWidth.base/navData.scale, trackWidth.min, trackWidth.max));
|
|
styleRoot.style.setProperty('--signScale', Utils.clamp(signSize.base/navData.scale, signSize.min, signSize.max));
|
|
if(dirtyScale){
|
|
for(let i=0; i<scaleCullThresholds.length; i++){
|
|
styleRoot.style.setProperty(`--cullThreshold_state_${i}`, navData.scale >= scaleCullThresholds[i].scale ? 'initial' : 'none')
|
|
}
|
|
}
|
|
previousMapScale = navData.scale;
|
|
}
|
|
}
|
|
|
|
/** Get the bounding box of all the tracks, and set the map bounds accordingly. Also flips the Y axis.
|
|
* **Note:** Does NOT evaluate beziers, uses the control points only.
|
|
*/
|
|
function establishDimensions(){
|
|
let minX = Infinity;
|
|
let minY = Infinity;
|
|
let minAlt = Infinity;
|
|
let maxX = -Infinity;
|
|
let maxY = -Infinity;
|
|
let maxAlt = -Infinity;
|
|
for(const obj of mapData){
|
|
for(const point of obj.points){
|
|
minX = Math.min(minX, point[0].x, point[1].x, point[2].x);
|
|
minY = Math.min(minY, point[0].z, point[1].z, point[2].z);
|
|
minAlt = Math.min(minAlt, point[0].y, point[1].y, point[2].y);
|
|
maxX = Math.max(maxX, point[0].x, point[1].x, point[2].x);
|
|
maxY = Math.max(maxY, point[0].z, point[1].z, point[2].z);
|
|
maxAlt = Math.max(maxAlt, point[0].y, point[1].y, point[2].y);
|
|
}
|
|
}
|
|
let width = maxX-minX;
|
|
let height = maxY-minY;
|
|
map.setAttribute('viewBox', `${minX-padding} ${minY-padding} ${width+2*padding} ${height+2*padding}`);
|
|
map_markers.setAttribute('viewBox', map.getAttribute('viewBox'));
|
|
updateMapview({
|
|
x: map.clientWidth/2-map_container.clientWidth/2,
|
|
y: map.clientHeight/2-map_container.clientHeight/2,
|
|
scale: 1
|
|
});
|
|
console.log(`(${minX}, ${minY}) to (${maxX}, ${maxY}). Altitude from ${minAlt} to ${maxAlt}`);
|
|
|
|
// Flip the z coordinate so the map doesn't display upside-down
|
|
for(const obj of mapData){
|
|
for(const point of obj.points){
|
|
point[0].z = minY+maxY-point[0].z;
|
|
point[1].z = minY+maxY-point[1].z;
|
|
point[2].z = minY+maxY-point[2].z;
|
|
}
|
|
}
|
|
}
|
|
|
|
/** Populate the SVG data */
|
|
function fillSvg(){
|
|
for(const obj of mapData){
|
|
switch(obj.type){
|
|
case 'bezier':
|
|
drawTracks(obj);
|
|
break;
|
|
}
|
|
}
|
|
sortTracks();
|
|
drawMarkers();
|
|
}
|
|
|
|
/** Insert individual rail paths, as well as creating signage data for each path*/
|
|
function drawTracks(bezierData){
|
|
const trackCol = Utils.rgba2hex(Math.random(),Math.random(),Math.random(),1.0);
|
|
if(trackNameCounting[bezierData.name] == null){
|
|
trackNameCounting[bezierData.name] = 0;
|
|
}else{
|
|
trackNameCounting[bezierData.name]++;
|
|
}
|
|
for(let i=0; i+1<bezierData.points.length; i++){
|
|
const bezStart = bezierData.points[i][0];
|
|
const bezHandle1 = bezierData.points[i][2];
|
|
const bezHandle2 = bezierData.points[i+1][1];
|
|
const bezEnd = bezierData.points[i+1][0];
|
|
let newBezier = document.createElementNS(svgns, 'path');
|
|
let genPath = 'M ';
|
|
genPath += `${bezStart.x} ${bezStart.z} `;
|
|
genPath += `C ${bezHandle1.x} ${bezHandle1.z} ${bezHandle2.x} ${bezHandle2.z} ${bezEnd.x} ${bezEnd.z} `;
|
|
bezierData.points[i].grade = Bezier.estimateGrade(bezStart, bezHandle1, bezHandle2, bezEnd, bezierGradeResolution);
|
|
bezierData.points[i].gradeClass = Utils.gradeToClass(bezierData.points[i].grade);
|
|
bezierData.points[i].bezLength = Bezier.estimateLength(bezStart, bezHandle1, bezHandle2, bezEnd, bezierLengthResolution);
|
|
bezierData.points[i].curvature = Bezier.estimateCurvature(bezStart, bezHandle1, bezHandle2, bezEnd, bezierCurvatureResolution);
|
|
bezierData.points[i].postedSpeed = Utils.radiusToSpeed(1/bezierData.points[i].curvature);
|
|
newBezier.setAttribute('d', genPath);
|
|
|
|
newBezier.classList.add('rail');
|
|
newBezier.classList.add(bezierData.points[i].gradeClass != null ? 'grade_'+bezierData.points[i].gradeClass : 'grade_flat');
|
|
|
|
//newBezier.setAttribute('stroke', Utils.rgba2hex(bezierData.points[i].grade*50*0,(bezStart.y-113)/(252-113),bezierData.points[i].bezLength*0.01*0,1.0));
|
|
//newBezier.setAttribute('stroke', Utils.rgba2hex((1/bezierData.points[i].curvature) * 100,0,0,1.0));
|
|
//newBezier.setAttribute('stroke', trackCol);
|
|
//newBezier.setAttribute('data-grade', bezierData.points[i].grade);
|
|
//newBezier.setAttribute('data-length', bezierData.points[i].bezLength);
|
|
//newBezier.setAttribute('data-maxradius', 1/bezierData.points[i].curvature);
|
|
tracks.push([(bezStart.y+bezEnd.y)*0.5, newBezier]);
|
|
|
|
// Curve tooltip
|
|
let title = document.createElementNS(svgns, 'title');
|
|
title.innerHTML = [
|
|
`"${bezierData.name}"${trackNameCounting[bezierData.name] > 0 ? ' #'+trackNameCounting[bezierData.name] : ''} Sec${i}`,
|
|
`Max Grade: ${Math.round(bezierData.points[i].grade*1000)/10}%`,
|
|
`Min Radius: ${Math.round(1/bezierData.points[i].curvature)} meters`,
|
|
`Top Speed: ${Utils.radiusToSpeed(1/bezierData.points[i].curvature)} km/h`,
|
|
`Length: ${Math.round(bezierData.points[i].bezLength*10)/10} meters`,
|
|
`Altitude: ${Math.round((bezStart.y+bezEnd.y)*0.5)} meters`,
|
|
].join('\n');
|
|
newBezier.appendChild(title);
|
|
}
|
|
|
|
// Add Signage
|
|
let trackZoneData = {};
|
|
for(let i=0; i+1<bezierData.points.length; i++){
|
|
for(let zI=0; zI < ((i == bezierData.points.length-2) ? 2 : 1); zI++){
|
|
let resetTzdGrade = () => {
|
|
trackZoneData.gradeClass = bezierData.points[i].gradeClass;
|
|
trackZoneData.gradeDirection = Math.sign(bezierData.points[i].grade);
|
|
trackZoneData.gradeCount = 0;
|
|
trackZoneData.gradeSectionLength = bezierData.points[i].bezLength;
|
|
};
|
|
let resetTzdSpeed = () => {
|
|
trackZoneData.prevSpeed = trackZoneData.speed;
|
|
trackZoneData.speed = bezierData.points[i].postedSpeed;
|
|
trackZoneData.speedCount = 0;
|
|
trackZoneData.speedSectionLength = bezierData.points[i].bezLength;
|
|
}
|
|
if(i <= 0){
|
|
resetTzdGrade();
|
|
resetTzdSpeed();
|
|
}else{
|
|
//Grade Signs
|
|
if(trackZoneData.gradeClass != bezierData.points[i].gradeClass || trackZoneData.gradeDirection != Math.sign(bezierData.points[i].grade) || trackZoneData.gradeSectionLength > maxSectionLength || zI > 0){
|
|
if(trackZoneData.gradeClass != null){
|
|
let offset = Math.floor((trackZoneData.gradeCount+1)/2)+1;
|
|
let center = trackZoneData.gradeCount % 2 ? 1 : 0.5;
|
|
let b1 = bezierData.points[(i+zI)-offset][0];
|
|
let b2 = bezierData.points[(i+zI)-offset][2];
|
|
let b3 = bezierData.points[(i+zI)+1-offset][1];
|
|
let b4 = bezierData.points[(i+zI)+1-offset][0];
|
|
markers.push({
|
|
type: 'grade',
|
|
value: bezierData.points[(i+zI)-offset].grade,
|
|
class: 'grade_'+trackZoneData.gradeClass,
|
|
position: Bezier.evaluatePoint(b1, b2, b3, b4, center),
|
|
sectionLength: trackZoneData.gradeSectionLength,
|
|
cullLevel: Math.round(scaleCullThresholds.length-1-trackZoneData.gradeSectionLength/scaleCullBaseSectionLength),
|
|
tangent: bezierData.points[(i+zI)].grade > 0
|
|
? Bezier.evaluateVelocity(b1, b2, b3, b4, center)
|
|
: Bezier.evaluateVelocity(b4, b3, b2, b1, center)
|
|
});
|
|
}
|
|
resetTzdGrade();
|
|
}else{
|
|
trackZoneData.gradeCount++;
|
|
trackZoneData.gradeSectionLength += bezierData.points[i].bezLength;
|
|
}
|
|
//Speed Signs
|
|
if(trackZoneData.speed != bezierData.points[i].postedSpeed || trackZoneData.speedSectionLength > maxSectionLength || zI > 0){
|
|
let offset = Math.floor((trackZoneData.speedCount+1)/2)+1;
|
|
let center = trackZoneData.speedCount % 2 ? 0.75 : 0.25;
|
|
let b1 = bezierData.points[(i+zI)-offset][0];
|
|
let b2 = bezierData.points[(i+zI)-offset][2];
|
|
let b3 = bezierData.points[(i+zI)+1-offset][1];
|
|
let b4 = bezierData.points[(i+zI)+1-offset][0];
|
|
let cullLevel = Math.round(scaleCullThresholds.length-1-trackZoneData.gradeSectionLength/scaleCullBaseSectionLengthSpeedboard);
|
|
let speedDelta = Math.max(0,
|
|
(bezierData.points[i].postedSpeed != null && bezierData.points[i].postedSpeed < 100) ? bezierData.points[i].postedSpeed-trackZoneData.speed : 0,
|
|
(trackZoneData.prevSpeed != null && trackZoneData.prevSpeed < 100) ? trackZoneData.prevSpeed-trackZoneData.speed : 0
|
|
);
|
|
if(speedDelta >= 10 && trackZoneData.speed <= 30){
|
|
cullLevel = 0;
|
|
}else if(speedDelta >= 20){
|
|
cullLevel = 1;
|
|
}
|
|
markers.push({
|
|
type: 'speed',
|
|
value: trackZoneData.speed,
|
|
position: Bezier.evaluatePoint(b1, b2, b3, b4, center),
|
|
sectionLength: trackZoneData.speedSectionLength,
|
|
cullLevel: cullLevel,
|
|
tangent: Bezier.evaluateVelocity(b1, b2, b3, b4, center)
|
|
});
|
|
resetTzdSpeed();
|
|
}else{
|
|
trackZoneData.speedCount++;
|
|
trackZoneData.speedSectionLength += bezierData.points[i].bezLength;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/** Sort the tracks and put them into the svg */
|
|
function sortTracks(){
|
|
tracks.sort((a,b) => {
|
|
return a[0]-b[0];
|
|
});
|
|
for(const track of tracks){
|
|
map_rails.appendChild(track[1]);
|
|
}
|
|
}
|
|
|
|
/** Create the signage */
|
|
function drawMarkers(){
|
|
const gradeSigns = document.createElementNS(svgns, 'g');
|
|
gradeSigns.setAttribute('id', 'grade_signs');
|
|
map_markers.appendChild(gradeSigns);
|
|
const speedSigns = document.createElementNS(svgns, 'g');
|
|
speedSigns.setAttribute('id', 'speed_signs');
|
|
map_markers.appendChild(speedSigns);
|
|
for(const markerData of markers){
|
|
//if(markerData.skip) continue;
|
|
let marker = document.createElementNS(svgns, 'g');
|
|
let markerImg = document.createElementNS(svgns, 'use');
|
|
let title = document.createElementNS(svgns, 'title');
|
|
marker.appendChild(markerImg);
|
|
marker.appendChild(title);
|
|
marker.setAttribute('transform', `translate(${markerData.position.x} ${markerData.position.z})`);
|
|
// Grade signs
|
|
if(markerData.type == 'grade'){
|
|
markerImg.setAttribute('href', '#gradeArrow');
|
|
markerImg.classList.add('sign', 'gradeSign');
|
|
if(markerData.class) markerImg.classList.add(markerData.class);
|
|
const tanLen = Math.sqrt(markerData.tangent.x*markerData.tangent.x + markerData.tangent.z*markerData.tangent.z) * Math.sign(markerData.tangent.y);
|
|
const rot = Math.atan2(markerData.tangent.x/tanLen, -markerData.tangent.z/tanLen) * (180/Math.PI);
|
|
marker.setAttribute('transform', `translate(${markerData.position.x} ${markerData.position.z}) rotate(${rot})`);
|
|
title.innerHTML = `${Math.round(markerData.value*1000)/10}% Grade\nSection Length: ${markerData.sectionLength.toFixed(1)} meters`;
|
|
gradeSigns.appendChild(marker);
|
|
// Speed Signs
|
|
}else if(markerData.type == 'speed'){
|
|
markerImg.setAttribute('href', `#speedSign_${Math.round(markerData.value/10)}`);
|
|
markerImg.classList.add('sign', 'speedSign');
|
|
title.innerHTML = `${Math.round(markerData.value)} km/h\nSection Length: ${markerData.sectionLength.toFixed(1)} meters`;
|
|
/*let offset = Vector.normalize({x:markerData.tangent.z, y:0, z:-markerData.tangent.x});
|
|
marker.setAttribute('transform', `translate(${markerData.position.x + offset.x*100} ${markerData.position.z + offset.z*50})`);*/
|
|
marker.setAttribute('transform', `translate(${markerData.position.x} ${markerData.position.z})`);
|
|
speedSigns.appendChild(marker);
|
|
}
|
|
|
|
if(markerData.cullLevel){
|
|
marker.classList.add(`cullThreshold_${Math.min(scaleCullThresholds.length-1, markerData.cullLevel)}`);
|
|
}
|
|
}
|
|
} |