/*
* Copyright 2024 The Ray Optics Simulation authors and contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import BaseFilter from '../BaseFilter.js';
import i18next from 'i18next';
import Simulator from '../../Simulator.js';
import geometry from '../../geometry.js';
/**
* Aperture / filter with a hole.
*
* Tools -> Blocker -> Aperture
* @class
* @extends BaseFilter
* @memberof sceneObjs
* @property {Point} p1 - The first endpoint of the aperture.
* @property {Point} p2 - The second endpoint of the aperture.
* @property {Point} p3 - The first endpoint of the hole.
* @property {Point} p4 - The second endpoint of the hole.
* @property {boolean} filter - Whether it is a filter.
* @property {boolean} invert - If true, the ray with wavelength outside the bandwidth is blocked. If false, the ray with wavelength inside the bandwidth is blocked.
* @property {number} wavelength - The target wavelength if filter is enabled. The unit is nm.
* @property {number} bandwidth - The bandwidth if filter is enabled. The unit is nm.
*/
class Aperture extends BaseFilter {
static type = 'Aperture';
static isOptical = true;
static serializableDefaults = {
p1: null,
p2: null,
p3: null,
p4: null,
filter: false,
invert: false,
wavelength: Simulator.GREEN_WAVELENGTH,
bandwidth: 10
};
populateObjBar(objBar) {
objBar.setTitle(i18next.t('main:tools.Aperture.title'));
var originalDiameter = geometry.distance(this.p3, this.p4);
objBar.createNumber(i18next.t('simulator:sceneObjs.Aperature.diameter'), 0, 100 * this.scene.lengthScale, 1 * this.scene.lengthScale, originalDiameter, function (obj, value) {
var t = 0.5 * (1 - value / geometry.distance(obj.p1, obj.p2));
obj.p3 = geometry.point(obj.p1.x * (1 - t) + obj.p2.x * t, obj.p1.y * (1 - t) + obj.p2.y * t);
obj.p4 = geometry.point(obj.p1.x * t + obj.p2.x * (1 - t), obj.p1.y * t + obj.p2.y * (1 - t));
}, i18next.t('simulator:sceneObjs.common.lengthUnitInfo'));
super.populateObjBar(objBar);
}
draw(canvasRenderer, isAboveLight, isHovered) {
const ctx = canvasRenderer.ctx;
const ls = canvasRenderer.lengthScale;
if (this.p1.x == this.p2.x && this.p1.y == this.p2.y) {
ctx.fillStyle = 'rgb(128,128,128)';
ctx.fillRect(this.p1.x - 1.5 * ls, this.p1.y - 1.5 * ls, 3 * ls, 3 * ls);
return;
}
const colorArray = Simulator.wavelengthToColor(this.wavelength || Simulator.GREEN_WAVELENGTH, 1);
ctx.strokeStyle = isHovered ? 'cyan' : (this.scene.simulateColors && this.wavelength && this.filter ? canvasRenderer.rgbaToCssColor(colorArray) : 'rgb(70,35,10)');
ctx.lineWidth = 3 * ls;
ctx.lineCap = 'butt';
ctx.beginPath();
ctx.moveTo(this.p1.x, this.p1.y);
ctx.lineTo(this.p3.x, this.p3.y);
ctx.stroke();
ctx.beginPath();
ctx.moveTo(this.p2.x, this.p2.y);
ctx.lineTo(this.p4.x, this.p4.y);
ctx.stroke();
ctx.lineWidth = 1 * ls;
if (isHovered) {
ctx.fillStyle = 'magenta';
ctx.fillRect(this.p3.x - 1.5 * ls, this.p3.y - 1.5 * ls, 3 * ls, 3 * ls);
ctx.fillRect(this.p4.x - 1.5 * ls, this.p4.y - 1.5 * ls, 3 * ls, 3 * ls);
}
}
move(diffX, diffY) {
this.p1.x = this.p1.x + diffX;
this.p1.y = this.p1.y + diffY;
this.p2.x = this.p2.x + diffX;
this.p2.y = this.p2.y + diffY;
this.p3.x = this.p3.x + diffX;
this.p3.y = this.p3.y + diffY;
this.p4.x = this.p4.x + diffX;
this.p4.y = this.p4.y + diffY;
}
onConstructMouseDown(mouse, ctrl, shift) {
if (!this.constructionPoint) {
// Initialize the construction stage.
this.constructionPoint = mouse.getPosSnappedToGrid();
this.p1 = this.constructionPoint;
this.p2 = this.constructionPoint;
}
if (shift) {
this.p2 = mouse.getPosSnappedToDirection(this.p1, [{ x: 1, y: 0 }, { x: 0, y: 1 }, { x: 1, y: 1 }, { x: 1, y: -1 }]);
} else {
this.p2 = mouse.getPosSnappedToGrid();
}
this.p3 = geometry.point(this.p1.x * 0.6 + this.p2.x * 0.4, this.p1.y * 0.6 + this.p2.y * 0.4);
this.p4 = geometry.point(this.p1.x * 0.4 + this.p2.x * 0.6, this.p1.y * 0.4 + this.p2.y * 0.6);
}
onConstructMouseMove(mouse, ctrl, shift) {
if (shift) {
this.p2 = mouse.getPosSnappedToDirection(this.constructionPoint, [{ x: 1, y: 0 }, { x: 0, y: 1 }, { x: 1, y: 1 }, { x: 1, y: -1 }]);
} else {
this.p2 = mouse.getPosSnappedToGrid();
}
this.p1 = ctrl ? geometry.point(2 * this.constructionPoint.x - this.p2.x, 2 * this.constructionPoint.y - this.p2.y) : this.constructionPoint;
this.p3 = geometry.point(this.p1.x * 0.6 + this.p2.x * 0.4, this.p1.y * 0.6 + this.p2.y * 0.4);
this.p4 = geometry.point(this.p1.x * 0.4 + this.p2.x * 0.6, this.p1.y * 0.4 + this.p2.y * 0.6);
return {
requiresObjBarUpdate: true
}
}
onConstructMouseUp(mouse, ctrl, shift) {
if (!mouse.snapsOnPoint(this.p1)) {
delete this.constructionPoint;
return {
isDone: true,
requiresObjBarUpdate: true
};
}
}
checkMouseOver(mouse) {
if (mouse.isOnPoint(this.p1) && geometry.distanceSquared(mouse.pos, this.p1) <= geometry.distanceSquared(mouse.pos, this.p2)) {
return {
part: 1,
targetPoint: geometry.point(this.p1.x, this.p1.y)
};
}
if (mouse.isOnPoint(this.p2)) {
return {
part: 2,
targetPoint: geometry.point(this.p2.x, this.p2.y)
};
}
if (mouse.isOnPoint(this.p3) && geometry.distanceSquared(mouse.pos, this.p3) <= geometry.distanceSquared(mouse.pos, this.p4)) {
return {
part: 3,
targetPoint: geometry.point(this.p3.x, this.p3.y),
requiresObjBarUpdate: true
};
}
if (mouse.isOnPoint(this.p4)) {
return {
part: 4,
targetPoint: geometry.point(this.p4.x, this.p4.y),
requiresObjBarUpdate: true
};
}
var segment1 = geometry.line(this.p1, this.p3);
var segment2 = geometry.line(this.p2, this.p4);
if (mouse.isOnSegment(segment1) || mouse.isOnSegment(segment2)) {
const mousePos = mouse.getPosSnappedToGrid();
return {
part: 0,
mousePos0: mousePos,
mousePos1: mousePos,
snapContext: {}
};
}
}
onDrag(mouse, dragContext, ctrl, shift) {
var basePoint;
var originalDiameter = geometry.distance(this.p3, this.p4);
if (dragContext.part == 1 || dragContext.part == 2) {
if (dragContext.part == 1) {
// Dragging the first endpoint Dragging the first endpoint
basePoint = ctrl ? geometry.segmentMidpoint(dragContext.originalObj) : dragContext.originalObj.p2;
this.p1 = shift ? mouse.getPosSnappedToDirection(basePoint, [{ x: 1, y: 0 }, { x: 0, y: 1 }, { x: 1, y: 1 }, { x: 1, y: -1 }, { x: (dragContext.originalObj.p2.x - dragContext.originalObj.p1.x), y: (dragContext.originalObj.p2.y - dragContext.originalObj.p1.y) }]) : mouse.getPosSnappedToGrid();
this.p2 = ctrl ? geometry.point(2 * basePoint.x - this.p1.x, 2 * basePoint.y - this.p1.y) : basePoint;
} else {
// Dragging the second endpoint Dragging the second endpoint
basePoint = ctrl ? geometry.segmentMidpoint(dragContext.originalObj) : dragContext.originalObj.p1;
this.p2 = shift ? mouse.getPosSnappedToDirection(basePoint, [{ x: 1, y: 0 }, { x: 0, y: 1 }, { x: 1, y: 1 }, { x: 1, y: -1 }, { x: (dragContext.originalObj.p2.x - dragContext.originalObj.p1.x), y: (dragContext.originalObj.p2.y - dragContext.originalObj.p1.y) }]) : mouse.getPosSnappedToGrid();
this.p1 = ctrl ? geometry.point(2 * basePoint.x - this.p2.x, 2 * basePoint.y - this.p2.y) : basePoint;
}
var t = 0.5 * (1 - originalDiameter / geometry.distance(this.p1, this.p2));
this.p3 = geometry.point(this.p1.x * (1 - t) + this.p2.x * t, this.p1.y * (1 - t) + this.p2.y * t);
this.p4 = geometry.point(this.p1.x * t + this.p2.x * (1 - t), this.p1.y * t + this.p2.y * (1 - t));
} else if (dragContext.part == 3 || dragContext.part == 4) {
if (dragContext.part == 3) {
basePoint = geometry.segmentMidpoint(this);
this.p3 = mouse.getPosSnappedToDirection(basePoint, [{ x: (dragContext.originalObj.p4.x - dragContext.originalObj.p3.x), y: (dragContext.originalObj.p4.y - dragContext.originalObj.p3.y) }]);
this.p4 = geometry.point(2 * basePoint.x - this.p3.x, 2 * basePoint.y - this.p3.y);
} else {
basePoint = geometry.segmentMidpoint(this);
this.p4 = mouse.getPosSnappedToDirection(basePoint, [{ x: (dragContext.originalObj.p4.x - dragContext.originalObj.p3.x), y: (dragContext.originalObj.p4.y - dragContext.originalObj.p3.y) }]);
this.p3 = geometry.point(2 * basePoint.x - this.p4.x, 2 * basePoint.y - this.p4.y);
}
} else if (dragContext.part == 0) {
// Dragging the entire line
if (shift) {
var mousePos = mouse.getPosSnappedToDirection(dragContext.mousePos0, [{ x: 1, y: 0 }, { x: 0, y: 1 }, { x: (dragContext.originalObj.p2.x - dragContext.originalObj.p1.x), y: (dragContext.originalObj.p2.y - dragContext.originalObj.p1.y) }, { x: (dragContext.originalObj.p2.y - dragContext.originalObj.p1.y), y: -(dragContext.originalObj.p2.x - dragContext.originalObj.p1.x) }], dragContext.snapContext);
} else {
var mousePos = mouse.getPosSnappedToGrid();
dragContext.snapContext = {}; // Unlock the dragging direction when the user release the shift key
}
var mouseDiffX = dragContext.mousePos1.x - mousePos.x; // The X difference between the mouse position now and at the previous moment
var mouseDiffY = dragContext.mousePos1.y - mousePos.y; // The Y difference between the mouse position now and at the previous moment
// Move the first point
this.p1.x = this.p1.x - mouseDiffX;
this.p1.y = this.p1.y - mouseDiffY;
// Move the second point
this.p2.x = this.p2.x - mouseDiffX;
this.p2.y = this.p2.y - mouseDiffY;
this.p3.x = this.p3.x - mouseDiffX;
this.p3.y = this.p3.y - mouseDiffY;
this.p4.x = this.p4.x - mouseDiffX;
this.p4.y = this.p4.y - mouseDiffY;
// Update the mouse position
dragContext.mousePos1 = mousePos;
}
}
checkRayIntersects(ray) {
if (this.checkRayIntersectFilter(ray)) {
var segment1 = geometry.line(this.p1, this.p3);
var segment2 = geometry.line(this.p2, this.p4);
var rp_temp1 = geometry.linesIntersection(geometry.line(ray.p1, ray.p2), segment1);
if (geometry.intersectionIsOnSegment(rp_temp1, segment1) && geometry.intersectionIsOnRay(rp_temp1, ray)) {
return rp_temp1;
}
var rp_temp2 = geometry.linesIntersection(geometry.line(ray.p1, ray.p2), segment2);
if (geometry.intersectionIsOnSegment(rp_temp2, segment2) && geometry.intersectionIsOnRay(rp_temp2, ray)) {
return rp_temp2;
}
}
return null;
}
onRayIncident(ray, rayIndex, incidentPoint) {
return {
isAbsorbed: true
};
}
};
export default Aperture;