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import { BoundingSphere } from "../../Source/Cesium.js";
import { Cartesian3 } from "../../Source/Cesium.js";
import { Cartographic } from "../../Source/Cesium.js";
import { Ellipsoid } from "../../Source/Cesium.js";
import { Math as CesiumMath } from "../../Source/Cesium.js";
import { Rectangle } from "../../Source/Cesium.js";
import { Cesium3DTileBatchTable } from "../../Source/Cesium.js";
import { ColorBlendMode } from "../../Source/Cesium.js";
import { Vector3DTilePolylines } from "../../Source/Cesium.js";
import createScene from "../createScene.js";
import pollToPromise from "../pollToPromise.js";
describe(
"Scene/Vector3DTilePolylines",
function () {
var scene;
var rectangle;
var polylines;
var ellipsoid = Ellipsoid.WGS84;
beforeAll(function () {
scene = createScene();
});
afterAll(function () {
scene.destroyForSpecs();
});
var mockTileset = {
_statistics: {
texturesByteLength: 0,
},
tileset: {
_statistics: {
batchTableByteLength: 0,
},
colorBlendMode: ColorBlendMode.HIGHLIGHT,
},
getFeature: function (id) {
return { batchId: id };
},
};
beforeEach(function () {
rectangle = Rectangle.fromDegrees(-40.0, -40.0, 40.0, 40.0);
});
afterEach(function () {
scene.primitives.removeAll();
polylines = polylines && !polylines.isDestroyed() && polylines.destroy();
});
function loadPolylines(polylines) {
var ready = false;
polylines.readyPromise.then(function () {
ready = true;
});
return pollToPromise(function () {
polylines.update(scene.frameState);
scene.frameState.commandList.length = 0;
return ready;
});
}
function zigZag(value) {
return ((value << 1) ^ (value >> 15)) & 0xffff;
}
var maxShort = 32767;
function encodePositions(
rectangle,
minimumHeight,
maximumHeight,
positions
) {
var length = positions.length;
var buffer = new Uint16Array(length * 3);
var lastU = 0;
var lastV = 0;
var lastH = 0;
for (var i = 0; i < length; ++i) {
var position = positions[i];
var u = (position.longitude - rectangle.west) / rectangle.width;
var v = (position.latitude - rectangle.south) / rectangle.height;
var h =
(position.height - minimumHeight) / (maximumHeight - minimumHeight);
u = CesiumMath.clamp(u, 0.0, 1.0);
v = CesiumMath.clamp(v, 0.0, 1.0);
h = CesiumMath.clamp(h, 0.0, 1.0);
u = Math.floor(u * maxShort);
v = Math.floor(v * maxShort);
h = Math.floor(h * maxShort);
buffer[i] = zigZag(u - lastU);
buffer[i + length] = zigZag(v - lastV);
buffer[i + length * 2] = zigZag(h - lastH);
lastU = u;
lastV = v;
lastH = h;
}
return buffer;
}
it("renders a polyline", function () {
var minHeight = 0.0;
var maxHeight = 5.0;
var cartoPositions = [
Cartographic.fromDegrees(0.0, 0.0, 1.0),
Cartographic.fromDegrees(1.0, 0.0, 2.0),
];
var positions = encodePositions(
rectangle,
minHeight,
maxHeight,
cartoPositions
);
var batchTable = new Cesium3DTileBatchTable(mockTileset, 1);
batchTable.update(mockTileset, scene.frameState);
var center = ellipsoid.cartographicToCartesian(
Rectangle.center(rectangle)
);
polylines = scene.primitives.add(
new Vector3DTilePolylines({
positions: positions,
widths: new Uint16Array([10]),
counts: new Uint32Array([2]),
batchIds: new Uint16Array([0]),
rectangle: rectangle,
minimumHeight: minHeight,
maximumHeight: maxHeight,
center: center,
boundingVolume: new BoundingSphere(center, 1000000.0),
batchTable: batchTable,
keepDecodedPositions: false,
})
);
return loadPolylines(polylines).then(function () {
scene.camera.lookAt(
Cartesian3.fromDegrees(0.5, 0.0, 1.5),
new Cartesian3(0.0, 0.0, 1.0)
);
expect(scene).toRender([255, 255, 255, 255]);
});
});
it("renders multiple polylines", function () {
var minHeight = 0.0;
var maxHeight = 100.0;
var cartoPositions = [
Cartographic.fromDegrees(1.0, 0.0, 1.0),
Cartographic.fromDegrees(2.0, 0.0, 2.0),
Cartographic.fromDegrees(-6.0, 0.0, 12.0),
Cartographic.fromDegrees(-5.0, 0.0, 15.0),
Cartographic.fromDegrees(0.0, 10.0, 0.0),
Cartographic.fromDegrees(0.0, 5.0, 5.0),
Cartographic.fromDegrees(0.0, 0.0, 10.0),
Cartographic.fromDegrees(0.0, -5.0, 15.0),
];
var positions = encodePositions(
rectangle,
minHeight,
maxHeight,
cartoPositions
);
var batchTable = new Cesium3DTileBatchTable(mockTileset, 1);
batchTable.update(mockTileset, scene.frameState);
var center = ellipsoid.cartographicToCartesian(
Rectangle.center(rectangle)
);
polylines = scene.primitives.add(
new Vector3DTilePolylines({
positions: positions,
widths: new Uint16Array([10, 10, 10]),
counts: new Uint32Array([2, 2, 4]),
batchIds: new Uint16Array([0, 1, 2]),
rectangle: rectangle,
minimumHeight: minHeight,
maximumHeight: maxHeight,
center: center,
boundingVolume: new BoundingSphere(center, 1000000.0),
batchTable: batchTable,
keepDecodedPositions: false,
})
);
return loadPolylines(polylines).then(function () {
for (var i = 0; i < cartoPositions.length; i += 2) {
var p1 = cartoPositions[i];
var p2 = cartoPositions[i + 1];
var longitude = CesiumMath.lerp(p1.longitude, p2.longitude, 0.5);
var latitude = CesiumMath.lerp(p1.latitude, p2.latitude, 0.5);
var height = CesiumMath.lerp(p1.height, p2.height, 0.5);
var target = Cartesian3.fromRadians(longitude, latitude, height);
scene.camera.lookAt(target, new Cartesian3(0.0, 0.0, 1.0));
expect(scene).toRender([255, 255, 255, 255]);
}
});
});
it("picks a polyline", function () {
var minHeight = 0.0;
var maxHeight = 5.0;
var cartoPositions = [
Cartographic.fromDegrees(0.0, 0.0, 1.0),
Cartographic.fromDegrees(1.0, 0.0, 2.0),
];
var positions = encodePositions(
rectangle,
minHeight,
maxHeight,
cartoPositions
);
var batchTable = new Cesium3DTileBatchTable(mockTileset, 1);
var center = ellipsoid.cartographicToCartesian(
Rectangle.center(rectangle)
);
polylines = scene.primitives.add(
new Vector3DTilePolylines({
positions: positions,
widths: new Uint16Array([10]),
counts: new Uint32Array([2]),
batchIds: new Uint16Array([0]),
rectangle: rectangle,
minimumHeight: minHeight,
maximumHeight: maxHeight,
center: center,
boundingVolume: new BoundingSphere(center, 1000000.0),
batchTable: batchTable,
keepDecodedPositions: false,
})
);
return loadPolylines(polylines).then(function () {
scene.camera.lookAt(
Cartesian3.fromDegrees(0.5, 0.0, 1.5),
new Cartesian3(0.0, 0.0, 1.0)
);
var features = [];
polylines.createFeatures(mockTileset, features);
var getFeature = mockTileset.getFeature;
mockTileset.getFeature = function (index) {
return features[index];
};
scene.frameState.passes.pick = true;
batchTable.update(mockTileset, scene.frameState);
expect(scene).toPickAndCall(function (result) {
expect(result).toBe(features[0]);
});
mockTileset.getFeature = getFeature;
});
});
it("isDestroyed", function () {
polylines = new Vector3DTilePolylines({});
expect(polylines.isDestroyed()).toEqual(false);
polylines.destroy();
expect(polylines.isDestroyed()).toEqual(true);
});
},
"WebGL"
);