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Bezier lines

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This commit is contained in:
portree_kid 2020-04-08 22:38:57 +02:00
parent cb8a49fc9d
commit 69a0e849a6
2 changed files with 322 additions and 69 deletions
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259
src/renderer/loaders/pavement_loader.js
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@ -5,6 +5,210 @@ const zlib = require('zlib');
const LatLonEllipsoidal = require('geodesy/latlon-ellipsoidal-vincenty.js').default;
const fs = require('fs');
/**
*
* @param {*} line
* @param {*} icao
* @param {*} layerGroup
* @param {*} currentFeature
*/
function bezier(line, icao, layerGroup, currentFeature) {
var previous = currentFeature.slice(-1)[0].slice(-1)[0];
if (previous !== undefined &&
Number(previous[0]) !== Number(line[1]) &&
Number(previous[1]) !== Number(line[2])) {
var midpoint = calcMidpoint([Number(previous[0]), Number(previous[1])],
[Number(line[1]), Number(line[2])]);
var startPoint = [Number(previous[0]), Number(previous[1])];
var endPoint = [Number(line[1]), Number(line[2])];
if(module.exports.debug) {
L.polyline([startPoint, endPoint], { color: 'fuchsia' }).addTo(layerGroup);
var marker = new L.marker(endPoint, { title: 'endpoint', color: 'fuchsia' });
marker.bindTooltip(String(currentFeature.slice(-1)[0].length + ' ' + line), { className: "my-label", offset: [0, 0] });
marker.addTo(layerGroup);
}
var control = [Number(line[3]), Number(line[4])];
if (!isNaN(control[0]) && control[0] !== undefined && !isNaN(control[1]) && control[1] !== undefined) {
var controlReflected = pointReflection([Number(line[3]), Number(line[4])],
[Number(line[1]), Number(line[2])]);
// L.marker(control, { title: 'control' }).addTo(layerGroup);
// L.marker(controlPointReflected, { title: 'controlReflected' }).addTo(layerGroup);
// L.polyline([controlPointReflected, control], { color: 'green' }).addTo(layerGroup);
// L.polyline([controlReflected, control], { color: 'red' }).addTo(layerGroup);
// L.polyline([controlReflected, midpoint], { color: 'aqua' }).addTo(layerGroup);
var modifiedControlPoint = calcMidpoint(controlReflected, midpoint);
// var modifiedControlPoint = controlReflected;
var points = null;
if (exports.bezierPoint === null) {
if (module.exports.debug) {
L.polyline([startPoint, controlReflected, endPoint], { color: 'purple' }).addTo(layerGroup);
var marker = new L.marker(controlReflected, { title: 'control First' });
marker.bindTooltip(String(currentFeature.slice(-1)[0].length + ' ' + line), {className: "my-label", offset: [0, 0] });
marker.addTo(layerGroup);
}
points = deCasteljau([
[Number(previous[0]), Number(previous[1])],
controlReflected, [Number(line[1]), Number(line[2])]]);
exports.bezierPoint = control;
} else {
if (module.exports.debug) {
L.polyline([startPoint, exports.bezierPoint, controlReflected, endPoint], { color: 'purple' }).addTo(layerGroup);
var marker = new L.marker(exports.bezierPoint, { title: 'exports.bezierPoint' }).addTo(layerGroup);
marker.bindTooltip(String(currentFeature.slice(-1)[0].length + ' ' + line), {className: "my-label", offset: [0, 10] });
marker.addTo(layerGroup);
var marker1 = new L.marker(controlReflected, { title: 'controlReflected' }).addTo(layerGroup);
marker1.bindTooltip(String(currentFeature.slice(-1)[0].length + ' ' + line), {className: "my-label", offset: [0, -10] });
marker1.addTo(layerGroup);
}
points = deCasteljau([
[Number(previous[0]), Number(previous[1])],
exports.bezierPoint,
controlReflected,
[Number(line[1]), Number(line[2])]]);
exports.bezierPoint = control;
}
// L.polyline([previous, control, [Number(line[1]), Number(line[2])]]).addTo(layerGroup);
for (let index = 0; index < points.length; index++) {
const element = points[index];
if (element[0] === "NaN") {
console.log(control);
}
currentFeature.slice(-1)[0].push(element);
}
} else {
var points = null;
if (module.exports.debug) {
L.polyline([startPoint, exports.bezierPoint, endPoint], { color: 'purple' }).addTo(layerGroup);
L.marker(exports.bezierPoint, { title: 'exports.bezierPoint' }).addTo(layerGroup);
}
points = deCasteljau([
[Number(previous[0]), Number(previous[1])],
exports.bezierPoint,
[Number(line[1]), Number(line[2])]]);
for (let index = 0; index < points.length; index++) {
const element = points[index];
if (element[0] === "NaN") {
console.log(control);
}
currentFeature.slice(-1)[0].push(element);
}
}
}
//L.marker([Number(line[3]), Number(line[4])]).addTo(layerGroup);
currentFeature.slice(-1)[0].push([line[1], line[2]]);
return currentFeature;
}
/**
* @brief Reflect point p on midpoint
*/
var pointReflectionMidpoint = function (p, p0, p1) {
var dx, dy, a, b, x, y;
dx = (p0[0] + p1[0]) / 2 - p[0];
dy = (p0[1] + p1[1]) / 2 - p[1];
return [(p0[0] + p1[0]) / 2 + dx, (p0[1] + p1[1]) / 2 + dy];
}
/**
* @brief Reflect point p on midpoint
*/
var pointReflection = function (p, p0) {
var dx, dy;
dx = p0[0] - p[0];
dy = p0[1] - p[1];
return [p0[0] + dx, p0[1] + dy];
}
/**
* @brief Reflect point p along line through points p0 and p1
*
* @author Balint Morvai <balint@morvai.de>
* @license http://en.wikipedia.org/wiki/MIT_License MIT License
* @param p point to reflect
* @param p0 first point for reflection line
* @param p1 second point for reflection line
* @return object
*/
var reflect = function (p, p0, p1) {
var dx, dy, a, b, x, y;
dx = p1[0] - p0[0];
dy = p1[1] - p0[1];
a = (dx * dx - dy * dy) / (dx * dx + dy * dy);
b = 2 * dx * dy / (dx * dx + dy * dy);
x = a * (p[0] - p0[0]) + b * (p[1] - p0[1]) + p0[0];
y = b * (p[0] - p0[0]) - a * (p[1] - p0[1]) + p0[1];
return [x, y];
}
function calcMidpoint(p1, p2) {
return [(p1[0] + p2[0]) / 2, (p1[1] + p2[1]) / 2];
}
function lerp(p1, p2, t) {
const s = 1 - t;
return [p1[0] * s + p2[0] * t, p1[1] * s + p2[1] * t];
}
function deCasteljau(p1, p2, control) {
const numSegments = 10;
var intermediates = [];
for (let index = 0; index <= numSegments; index++) {
p3 = lerp(p1, control, index / numSegments);
p4 = lerp(control, p2, index / numSegments);
var intermediate = lerp(p3, p4, index / numSegments);
intermediates.push([String(intermediate[0]), String(intermediate[1])]);
}
intermediates.push(p2);
return intermediates;
}
function deCasteljauSegment(pointArray, len) {
var subPoints = [];
if (pointArray.length == 1) {
return pointArray[0];
}
for (let index = 1; index < pointArray.length; index++) {
subPoints.push(lerp(pointArray[index - 1], pointArray[index], len));
}
return deCasteljauSegment(subPoints, len);
}
function deCasteljau(pointArray) {
const numSegments = 10;
var intermediates = [];
for (let index = 0; index < numSegments; index++) {
intermediates.push(deCasteljauSegment(pointArray, index / numSegments));
}
return intermediates;
}
function createPoly(currentFeature) {
switch (module.exports.type) {
case 110:
@ -80,9 +284,11 @@ module.exports.readPavement = function (f, icao, cb) {
});
}
module.exports.debug = false;
module.exports.isScanning = false;
module.exports.colour = 'grey';
module.exports.type = 0;
module.exports.bezierPoint = null;
var scanMethods = {
@ -131,8 +337,7 @@ var scanMethods = {
110: (line, icao, layerGroup, currentFeature) => {
if (!module.exports.isScanning)
return undefined;
if(typeof currentFeature !== 'undefined')
{
if (typeof currentFeature !== 'undefined') {
createPoly(currentFeature);
}
module.exports.colour = 'grey';
@ -142,8 +347,7 @@ var scanMethods = {
120: (line, icao, layerGroup, currentFeature) => {
if (!module.exports.isScanning)
return undefined;
if(typeof currentFeature !== 'undefined')
{
if (typeof currentFeature !== 'undefined') {
createPoly(currentFeature);
}
module.exports.colour = 'yellow';
@ -153,8 +357,7 @@ var scanMethods = {
130: (line, icao, layerGroup, currentFeature) => {
if (!module.exports.isScanning)
return undefined;
if(typeof currentFeature !== 'undefined')
{
if (typeof currentFeature !== 'undefined') {
createPoly(currentFeature);
}
module.exports.colour = 'black';
@ -165,46 +368,74 @@ var scanMethods = {
if (!module.exports.isScanning)
return;
console.log(line);
var previous = currentFeature.slice(-1)[0].slice(-1)[0];
if (previous !== undefined &&
previous !== null &&
previous[0] === line[1] &&
previous[1] === line[2]) {
module.exports.bezierPoint = null;
} else {
currentFeature.slice(-1)[0].push([line[1], line[2]]);
module.exports.bezierPoint = null;
}
return currentFeature;
},
// Bezier
112: (line, icao, layerGroup, currentFeature) => {
if (!module.exports.isScanning)
if (!module.exports.isScanning) {
return;
}
console.log(line);
currentFeature.slice(-1)[0].push([line[1], line[2]]);
return currentFeature;
return bezier(line, icao, layerGroup, currentFeature);
},
113: (line, icao, layerGroup, currentFeature) => {
if (!module.exports.isScanning)
if (!module.exports.isScanning) {
return;
}
console.log(line);
currentFeature.slice(-1)[0].push([line[1], line[2]]);
currentFeature.push([]);
exports.bezierPoint = null;
return currentFeature;
},
// Bezier
114: (line, icao, layerGroup, currentFeature) => {
if (!module.exports.isScanning)
if (!module.exports.isScanning) {
return;
currentFeature.slice(-1)[0].push([line[1], line[2]]);
}
console.log(line);
bezier(line, icao, layerGroup, currentFeature);
currentFeature.push([]);
exports.bezierPoint = null;
// currentFeature.slice(-1)[0].push([line[1], line[2]]);
return currentFeature;
},
115: (line, icao, layerGroup, currentFeature) => {
if (!module.exports.isScanning)
return;
console.log(line);
if (exports.bezierPoint !== null) {
bezier(line, icao, layerGroup, currentFeature);
}
else {
currentFeature.slice(-1)[0].push([line[1], line[2]]);
}
createLineString(currentFeature);
exports.bezierPoint = null;
},
// End with Bezier
116: (line, icao, layerGroup, currentFeature) => {
if (!module.exports.isScanning)
return;
currentFeature.slice(-1)[0].push([line[1], line[2]]);
console.log(line);
currentFeature = bezier(line, icao, layerGroup, currentFeature);
createLineString(currentFeature);
exports.bezierPoint = null;
// taxiwayLine.addTo(layerGroup);
},
99: (l) => {
console.log('Finished');
}
},
}

22
src/renderer/utils/apt.js
View File

@ -36,6 +36,28 @@ var scanMethods = {
});
return promise;
},
16: async (l, apts) => {
var promise = new Promise(function (resolve, reject) {
logger('info', 'Seaplane:', l);
icao = l[4];
saveName(apts, l[4], l.slice(5).join(' ').replace('\t', ' '))
.then(result => {
resolve(result)
}).catch( err => {reject(err)});
});
return promise;
},
17: async (l, apts) => {
var promise = new Promise(function (resolve, reject) {
logger('info', 'Heliport:', l);
icao = l[4];
saveName(apts, l[4], l.slice(5).join(' ').replace('\t', ' '))
.then(result => {
resolve(result)
}).catch( err => {reject(err)});
});
return promise;
},
18: async (l, apts) => {
var promise = new Promise(function (resolve, reject) {
logger('info','Airport light beacon:', l);