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add attack arrow

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This commit is contained in:
ethan 2023-08-16 16:17:33 +08:00
parent 252dbf4bcc
commit 599f047e0a
6 changed files with 271 additions and 53 deletions
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16
examples/index.ts
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@ -1,16 +1,16 @@
import CesiumPlot from "../src"; import CesiumPlot from '../src';
// import CesiumPlot from "../dist/CesiumPlot"; // import CesiumPlot from "../dist/CesiumPlot";
import * as Cesium from "./cesium/index"; import * as Cesium from './cesium/index';
// let raster = new Cesium.ArcGisMapServerImageryProvider({ // let raster = new Cesium.ArcGisMapServerImageryProvider({
// url: "https://services.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer", // url: "https://services.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer",
// }); // });
let keda = new Cesium.UrlTemplateImageryProvider({ let keda = new Cesium.UrlTemplateImageryProvider({
url: "https://10.68.8.41:9043/kmap-server/gridMap/tile/{z}/{y}/{x}", url: 'https://10.68.8.41:9043/kmap-server/gridMap/tile/{z}/{y}/{x}',
// url: 'http://10.68.8.58:8080/3d/dom2/{z}/{x}/{y}.png' // url: 'http://10.68.8.58:8080/3d/dom2/{z}/{x}/{y}.png'
}); });
const viewer = new Cesium.Viewer("cesiumContainer", { const viewer = new Cesium.Viewer('cesiumContainer', {
animation: false, animation: false,
shouldAnimate: true, shouldAnimate: true,
geocoder: false, geocoder: false,
@ -34,6 +34,12 @@ viewer.scene.camera.setView({
destination: Cesium.Cartesian3.fromDegrees(107.857, 35.594498, 8000000), destination: Cesium.Cartesian3.fromDegrees(107.857, 35.594498, 8000000),
}); });
document.getElementById("drawStraightArrow").onclick = () => { const fineArrow = document.getElementById('drawFineArrow') as HTMLElement;
fineArrow.onclick = () => {
new CesiumPlot.FineArrow(Cesium, viewer, {}); new CesiumPlot.FineArrow(Cesium, viewer, {});
}; };
const attackArrow = document.getElementById('drawAttackArrow') as HTMLElement;
attackArrow.onclick = () => {
new CesiumPlot.AttackArrow(Cesium, viewer, {});
};

28
index.html
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@ -15,19 +15,41 @@
padding: 0; padding: 0;
overflow: hidden; overflow: hidden;
} }
#drawStraightArrow { /* #btn {
position: absolute; position: absolute;
top: 10px; top: 10px;
left: 10px; left: 10px;
} */
.button-container {
position: absolute;
top: 10px;
left: 10px;
display: flex; /* 使用 Flex 布局 */
justify-content: center; /* 水平居中对齐 */
}
.button {
margin: 0 10px; /* 按钮之间的间距 */
padding: 6px 10px; /* 按钮内边距 */
background-color: #3498db; /* 按钮背景颜色 */
color: #ffffff; /* 按钮文字颜色 */
border: none; /* 去除边框 */
border-radius: 5px; /* 圆角边框 */
cursor: pointer; /* 鼠标指针样式 */
} }
</style> </style>
</head> </head>
<body> <body>
<div id="root"></div> <div id="root"></div>
<div id="cesiumContainer"></div> <div id="cesiumContainer"></div>
<button id="drawStraightArrow" class="btn btn-success">直箭头</button> <div class="button-container">
<button id="drawFineArrow" class="button">直箭头</button>
<button id="drawAttackArrow" class="button">进攻方向箭头</button>
</div>
<script> <script>
window.CESIUM_BASE_URL = "./examples/cesium"; window.CESIUM_BASE_URL = './examples/cesium';
</script> </script>
<script type="module" src="./examples/index.ts"></script> <script type="module" src="./examples/index.ts"></script>
</body> </body>

139
src/arrow/attack-arrow.ts Normal file
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@ -0,0 +1,139 @@
import Draw from '../draw';
import * as Utils from '../utils';
import { Cartesian3 } from '@examples/cesium';
export default class AttackArrow extends Draw {
points: Cartesian3[] = [];
headHeightFactor: number;
headWidthFactor: number;
neckHeightFactor: number;
neckWidthFactor: number;
headTailFactor: number;
constructor(cesium: any, viewer: any, style: any) {
super(cesium, viewer);
this.cesium = cesium;
this.headHeightFactor = 0.18;
this.headWidthFactor = 0.3;
this.neckHeightFactor = 0.85;
this.neckWidthFactor = 0.15;
this.headTailFactor = 0.8;
this.setState('drawing');
this.onDoubleClick();
}
/**
* Add points only on click events
*/
addPoint(cartesian: Cartesian3) {
this.points.push(cartesian);
if (this.points.length < 2) {
this.onMouseMove();
} else if (this.points.length === 2) {
this.setGeometryPoints(this.points);
this.addToMap();
this.lineEntity && this.viewer.entities.remove(this.lineEntity);
} else {
console.error('click...');
}
}
/**
* Draw a shape based on mouse movement points during the initial drawing.
*/
updateMovingPoint(cartesian: Cartesian3) {
const tempPoints = [...this.points, cartesian];
//
this.setGeometryPoints(tempPoints);
if (tempPoints.length === 2) {
this.drawLine();
} else {
const geometryPoints = this.createPolygon(tempPoints);
this.setGeometryPoints(geometryPoints);
this.addToMap();
}
}
/**
* Generate geometric shapes based on key points.
*/
createPolygon(positions: Cartesian3[]): Cartesian3[] {
const lnglatPoints = positions.map((pnt) => {
return this.cartesianToLnglat(pnt);
});
let [tailLeft, tailRight] = [lnglatPoints[0], lnglatPoints[1]];
if (Utils.isClockWise(lnglatPoints[0], lnglatPoints[1], lnglatPoints[2])) {
tailLeft = lnglatPoints[1];
tailRight = lnglatPoints[0];
}
const midTail = Utils.Mid(tailLeft, tailRight);
const bonePnts = [midTail].concat(lnglatPoints.slice(2));
const headPnts = this.getArrowHeadPoints(bonePnts, tailLeft, tailRight);
const [neckLeft, neckRight] = [headPnts[0], headPnts[4]];
const tailWidthFactor = Utils.MathDistance(tailLeft, tailRight) / Utils.getBaseLength(bonePnts);
const bodyPnts = this.getArrowBodyPoints(bonePnts, neckLeft, neckRight, tailWidthFactor);
const count = bodyPnts.length;
let leftPnts = [tailLeft].concat(bodyPnts.slice(0, count / 2));
leftPnts.push(neckLeft);
let rightPnts = [tailRight].concat(bodyPnts.slice(count / 2, count));
rightPnts.push(neckRight);
leftPnts = Utils.getQBSplinePoints(leftPnts);
rightPnts = Utils.getQBSplinePoints(rightPnts);
const points = leftPnts.concat(headPnts, rightPnts.reverse());
const temp = [].concat(...points);
const cartesianPoints = this.cesium.Cartesian3.fromDegreesArray(temp);
return cartesianPoints;
}
getPoints() {
return this.points;
}
getArrowHeadPoints(points, tailLeft, tailRight) {
try {
let len = Utils.getBaseLength(points);
let headHeight = len * this.headHeightFactor;
const headPnt = points[points.length - 1];
len = Utils.MathDistance(headPnt, points[points.length - 2]);
const tailWidth = Utils.MathDistance(tailLeft, tailRight);
if (headHeight > tailWidth * this.headTailFactor) {
headHeight = tailWidth * this.headTailFactor;
}
const headWidth = headHeight * this.headWidthFactor;
const neckWidth = headHeight * this.neckWidthFactor;
headHeight = headHeight > len ? len : headHeight;
const neckHeight = headHeight * this.neckHeightFactor;
const headEndPnt = Utils.getThirdPoint(points[points.length - 2], headPnt, 0, headHeight, true);
const neckEndPnt = Utils.getThirdPoint(points[points.length - 2], headPnt, 0, neckHeight, true);
const headLeft = Utils.getThirdPoint(headPnt, headEndPnt, Math.PI / 2, headWidth, false);
const headRight = Utils.getThirdPoint(headPnt, headEndPnt, Math.PI / 2, headWidth, true);
const neckLeft = Utils.getThirdPoint(headPnt, neckEndPnt, Math.PI / 2, neckWidth, false);
const neckRight = Utils.getThirdPoint(headPnt, neckEndPnt, Math.PI / 2, neckWidth, true);
return [neckLeft, headLeft, headPnt, headRight, neckRight];
} catch (e) {
console.log(e);
}
}
getArrowBodyPoints(points, neckLeft, neckRight, tailWidthFactor) {
const allLen = Utils.wholeDistance(points);
const len = Utils.getBaseLength(points);
const tailWidth = len * tailWidthFactor;
const neckWidth = Utils.MathDistance(neckLeft, neckRight);
const widthDif = (tailWidth - neckWidth) / 2;
// eslint-disable-next-line
let [tempLen, leftBodyPnts, rightBodyPnts] = [0, [], []];
for (let i = 1; i < points.length - 1; i++) {
const angle = Utils.getAngleOfThreePoints(points[i - 1], points[i], points[i + 1]) / 2;
tempLen += Utils.MathDistance(points[i - 1], points[i]);
const w = (tailWidth / 2 - (tempLen / allLen) * widthDif) / Math.sin(angle);
const left = Utils.getThirdPoint(points[i - 1], points[i], Math.PI - angle, w, true);
const right = Utils.getThirdPoint(points[i - 1], points[i], angle, w, false);
leftBodyPnts.push(left);
rightBodyPnts.push(right);
}
return leftBodyPnts.concat(rightBodyPnts);
}
}

34
src/arrow/fine-arrow.ts
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@ -4,10 +4,22 @@ import { Cartesian3 } from '@examples/cesium';
export default class FineArrow extends Draw { export default class FineArrow extends Draw {
points: Cartesian3[] = []; points: Cartesian3[] = [];
arrowLengthScale: number = 5;
maxArrowLength: number = 2;
tailWidthFactor: number;
neckWidthFactor: number;
headWidthFactor: number;
headAngle: number;
neckAngle: number;
constructor(cesium: any, viewer: any, style: any) { constructor(cesium: any, viewer: any, style: any) {
super(cesium, viewer); super(cesium, viewer);
this.cesium = cesium; this.cesium = cesium;
this.tailWidthFactor = 0.1;
this.neckWidthFactor = 0.2;
this.headWidthFactor = 0.25;
this.headAngle = Math.PI / 8.5;
this.neckAngle = Math.PI / 13;
this.setState('drawing'); this.setState('drawing');
} }
@ -15,24 +27,32 @@ export default class FineArrow extends Draw {
* Add points only on click events * Add points only on click events
*/ */
addPoint(cartesian: Cartesian3) { addPoint(cartesian: Cartesian3) {
this.points.push(); if (this.points.length < 2) {
if (this.points.length === 0) { this.points.push(cartesian);
this.points[0] = cartesian;
this.onMouseMove(); this.onMouseMove();
} }
if (this.points.length === 2) { if (this.points.length === 2) {
const geometryPoints = this.createPolygon(this.points); const geometryPoints = this.createPolygon(this.points);
this.setGeometryPoints(geometryPoints); this.setGeometryPoints(geometryPoints);
this.addToMap(); this.addToMap();
this.removeMoveListener(); this.finishDrawing();
this.setState('static');
} }
} }
/** /**
* Update the last point as the mouse moves. * Draw a shape based on mouse movement points during the initial drawing.
*/ */
updateMovingPoint(cartesian: Cartesian3, index: number) { updateMovingPoint(cartesian: Cartesian3) {
const tempPoints = [...this.points, cartesian];
const geometryPoints = this.createPolygon(tempPoints);
this.setGeometryPoints(geometryPoints);
this.addToMap();
}
/**
* In edit mode, drag key points to update corresponding key point data.
*/
updateDraggingPoint(cartesian: Cartesian3, index: number) {
this.points[index] = cartesian; this.points[index] = cartesian;
const geometryPoints = this.createPolygon(this.points); const geometryPoints = this.createPolygon(this.points);
this.setGeometryPoints(geometryPoints); this.setGeometryPoints(geometryPoints);

95
src/draw.ts
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@ -5,28 +5,18 @@ import { State } from './interface';
export default class Draw { export default class Draw {
cesium: typeof CesiumTypeOnly; cesium: typeof CesiumTypeOnly;
viewer: CesiumTypeOnly.Viewer; viewer: CesiumTypeOnly.Viewer;
arrowLengthScale: number = 5;
maxArrowLength: number = 2;
tailWidthFactor: number;
neckWidthFactor: number;
headWidthFactor: number;
headAngle: number;
neckAngle: number;
eventHandler: CesiumTypeOnly.ScreenSpaceEventHandler; eventHandler: CesiumTypeOnly.ScreenSpaceEventHandler;
entity: CesiumTypeOnly.Entity; polygonEntity: CesiumTypeOnly.Entity;
geometryPoints: CesiumTypeOnly.Cartesian3[] = []; geometryPoints: CesiumTypeOnly.Cartesian3[] = [];
state: State = 'drawing'; state: State = 'drawing';
controlPoints: CesiumTypeOnly.EntityCollection; controlPoints: CesiumTypeOnly.EntityCollection;
controlPointsEventHandler: CesiumTypeOnly.ScreenSpaceEventHandler; controlPointsEventHandler: CesiumTypeOnly.ScreenSpaceEventHandler;
lineEntity: CesiumTypeOnly.Entity;
constructor(cesium: typeof CesiumTypeOnly, viewer: CesiumTypeOnly.Viewer) { constructor(cesium: typeof CesiumTypeOnly, viewer: CesiumTypeOnly.Viewer) {
this.cesium = cesium; this.cesium = cesium;
this.viewer = viewer; this.viewer = viewer;
this.tailWidthFactor = 0.1;
this.neckWidthFactor = 0.2;
this.headWidthFactor = 0.25;
this.headAngle = Math.PI / 8.5;
this.neckAngle = Math.PI / 13;
this.cartesianToLnglat = this.cartesianToLnglat.bind(this); this.cartesianToLnglat = this.cartesianToLnglat.bind(this);
this.pixelToCartesian = this.pixelToCartesian.bind(this); this.pixelToCartesian = this.pixelToCartesian.bind(this);
this.onClick(); this.onClick();
@ -52,12 +42,18 @@ export default class Draw {
*/ */
onClick() { onClick() {
this.eventHandler = new this.cesium.ScreenSpaceEventHandler(this.viewer.canvas); this.eventHandler = new this.cesium.ScreenSpaceEventHandler(this.viewer.canvas);
this.eventHandler.setInputAction((evt) => { this.eventHandler.setInputAction((evt: any) => {
const pickedObject = this.viewer.scene.pick(evt.position); const pickedObject = this.viewer.scene.pick(evt.position);
const hitEntities = this.cesium.defined(pickedObject) && pickedObject.id instanceof CesiumTypeOnly.Entity; const hitEntities = this.cesium.defined(pickedObject) && pickedObject.id instanceof CesiumTypeOnly.Entity;
if (this.state === 'drawing') { if (this.state === 'drawing') {
// In the drawing state, the points clicked are key nodes of the shape, and they are saved in this.points. // In the drawing state, the points clicked are key nodes of the shape, and they are saved in this.points.
const cartesian = this.pixelToCartesian(evt.position); const cartesian = this.pixelToCartesian(evt.position);
const points = this.getPoints();
// If clicked outside the sphere or if the distance between the current click position and
// the previous click position is less than 10 meters, it is considered an invalid point.
if (!cartesian || (points.length > 0 && !this.checkDistance(cartesian, points[points.length - 1]))) {
return;
}
this.addPoint(cartesian); this.addPoint(cartesian);
} else if (this.state === 'edit') { } else if (this.state === 'edit') {
//In edit mode, exiting the edit state and deleting control points when clicking in the blank area. //In edit mode, exiting the edit state and deleting control points when clicking in the blank area.
@ -79,22 +75,38 @@ export default class Draw {
} }
onMouseMove() { onMouseMove() {
this.eventHandler.setInputAction((evt) => { this.eventHandler.setInputAction((evt: any) => {
this.drawingWhileMoving(evt.endPosition, 1); const points = this.getPoints();
const cartesian = this.pixelToCartesian(evt.endPosition);
if (!cartesian) {
return;
}
if (this.checkDistance(cartesian, points[points.length - 1])) {
// Synchronize data to subclasses.If the distance is less than 10 meters, do not proceed
this.updateMovingPoint(cartesian, points.length);
}
}, this.cesium.ScreenSpaceEventType.MOUSE_MOVE); }, this.cesium.ScreenSpaceEventType.MOUSE_MOVE);
} }
drawingWhileMoving(position: CesiumTypeOnly.Cartesian2, index: number) { onDoubleClick() {
const cartesian = this.pixelToCartesian(position); // this.eventHandler = new this.cesium.ScreenSpaceEventHandler(this.viewer.canvas);
const lnglat = this.cartesianToLnglat(cartesian); this.eventHandler.setInputAction((evt: any) => {
const points = this.getPoints(); console.error('db click...');
const lastPoint = this.cartesianToLnglat(points[points.length - 1]); this.finishDrawing();
const distance = Utils.MathDistance(lnglat, lastPoint); }, this.cesium.ScreenSpaceEventType.LEFT_DOUBLE_CLICK);
if (distance < 0.0001) { }
return false;
} /**
// Synchronize data to subclasses. * Check if the distance between two points is greater than 10 meters.
this.updateMovingPoint(cartesian, index); */
checkDistance(cartesian1: CesiumTypeOnly.Cartesian3, cartesian2: CesiumTypeOnly.Cartesian3) {
const distance = this.cesium.Cartesian3.distance(cartesian1, cartesian2);
return distance > 10;
}
finishDrawing() {
this.removeMoveListener();
this.setState('static');
} }
removeClickListener() { removeClickListener() {
@ -117,8 +129,8 @@ export default class Draw {
const callback = () => { const callback = () => {
return new this.cesium.PolygonHierarchy(this.geometryPoints); return new this.cesium.PolygonHierarchy(this.geometryPoints);
}; };
if (!this.entity) { if (!this.polygonEntity) {
this.entity = this.viewer.entities.add({ this.polygonEntity = this.viewer.entities.add({
polygon: new this.cesium.PolygonGraphics({ polygon: new this.cesium.PolygonGraphics({
hierarchy: new this.cesium.CallbackProperty(callback, false), hierarchy: new this.cesium.CallbackProperty(callback, false),
show: true, show: true,
@ -129,6 +141,19 @@ export default class Draw {
} }
} }
drawLine() {
if (!this.lineEntity) {
this.lineEntity = this.viewer.entities.add({
polyline: {
positions: new this.cesium.CallbackProperty(() => this.geometryPoints, false),
width: 5,
// material: this.cesium.Color.RED,
clampToGround: true,
},
});
}
}
cartesianToLnglat(cartesian: CesiumTypeOnly.Cartesian3): number[] { cartesianToLnglat(cartesian: CesiumTypeOnly.Cartesian3): number[] {
const lnglat = this.viewer.scene.globe.ellipsoid.cartesianToCartographic(cartesian); const lnglat = this.viewer.scene.globe.ellipsoid.cartesianToCartographic(cartesian);
const lat = this.cesium.Math.toDegrees(lnglat.latitude); const lat = this.cesium.Math.toDegrees(lnglat.latitude);
@ -161,7 +186,7 @@ export default class Draw {
this.controlPointsEventHandler = new this.cesium.ScreenSpaceEventHandler(this.viewer.canvas); this.controlPointsEventHandler = new this.cesium.ScreenSpaceEventHandler(this.viewer.canvas);
// Listen for left mouse button press events // Listen for left mouse button press events
this.controlPointsEventHandler.setInputAction((clickEvent) => { this.controlPointsEventHandler.setInputAction((clickEvent: any) => {
const pickedObject = this.viewer.scene.pick(clickEvent.position); const pickedObject = this.viewer.scene.pick(clickEvent.position);
if (this.cesium.defined(pickedObject)) { if (this.cesium.defined(pickedObject)) {
@ -179,12 +204,12 @@ export default class Draw {
}, this.cesium.ScreenSpaceEventType.LEFT_DOWN); }, this.cesium.ScreenSpaceEventType.LEFT_DOWN);
// Listen for mouse movement events // Listen for mouse movement events
this.controlPointsEventHandler.setInputAction((moveEvent) => { this.controlPointsEventHandler.setInputAction((moveEvent: any) => {
if (isDragging && draggedIcon) { if (isDragging && draggedIcon) {
const cartesian = this.viewer.camera.pickEllipsoid(moveEvent.endPosition, this.viewer.scene.globe.ellipsoid); const cartesian = this.viewer.camera.pickEllipsoid(moveEvent.endPosition, this.viewer.scene.globe.ellipsoid);
if (cartesian) { if (cartesian) {
draggedIcon.position.setValue(cartesian); draggedIcon.position.setValue(cartesian);
this.drawingWhileMoving(moveEvent.endPosition, draggedIcon.index); this.updateDraggingPoint(cartesian, draggedIcon.index);
} }
} }
}, this.cesium.ScreenSpaceEventType.MOUSE_MOVE); }, this.cesium.ScreenSpaceEventType.MOUSE_MOVE);
@ -215,7 +240,11 @@ export default class Draw {
return this.cesium.Cartesian3(); return this.cesium.Cartesian3();
} }
updateMovingPoint(cartesian: CesiumTypeOnly.Cartesian3, index: number) { updateMovingPoint(cartesian: CesiumTypeOnly.Cartesian3, index?: number) {
//Abstract method that must be implemented by subclasses.
}
updateDraggingPoint(cartesian: CesiumTypeOnly.Cartesian3, index: number) {
//Abstract method that must be implemented by subclasses. //Abstract method that must be implemented by subclasses.
} }
} }

12
src/index.ts
View File

@ -1,7 +1,9 @@
import FineArrow from './arrow/fine-arrow' import FineArrow from './arrow/fine-arrow';
import AttackArrow from './arrow/attack-arrow';
const CesiumPlot = {
FineArrow const CesiumPlot = {
} FineArrow,
AttackArrow,
};
export default CesiumPlot; export default CesiumPlot;