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import { CodeMapMesh } from "../rendering/codeMapMesh"
import { CodeMapBuilding } from "../rendering/codeMapBuilding"
import { CcState, CodeMapNode, LayoutAlgorithm, Node } from "../../../codeCharta.model"
import { hierarchy } from "d3-hierarchy"
import { ColorConverter } from "../../../util/color/colorConverter"
import { FloorLabelDrawer } from "./floorLabels/floorLabelDrawer"
import { setSelectedBuildingId } from "../../../state/store/appStatus/selectedBuildingId/selectedBuildingId.actions"
import { idToNodeSelector } from "../../../state/selectors/accumulatedData/idToNode.selector"
import { IdToBuildingService } from "../../../services/idToBuilding/idToBuilding.service"
import { mapColorsSelector } from "../../../state/store/appSettings/mapColors/mapColors.selector"
import { ThreeRendererService } from "./threeRenderer.service"
import { Injectable, OnDestroy } from "@angular/core"
import { defaultMapColors } from "../../../state/store/appSettings/mapColors/mapColors.reducer"
import { treeMapSize } from "../../../util/algorithm/treeMapLayout/treeMapHelper"
import { EventEmitter } from "../../../util/EventEmitter"
import { State, Store } from "@ngrx/store"
type BuildingSelectedEvents = {
onBuildingSelected: (data: { building: CodeMapBuilding }) => void
onBuildingDeselected: () => void
}
@Injectable({ providedIn: "root" })
export class ThreeSceneService implements OnDestroy {
scene: Scene
labels: Group
floorLabelPlanes: Group
edgeArrows: Group
mapGeometry: Group
private readonly lights: Group
private mapMesh: CodeMapMesh
private eventEmitter = new EventEmitter<BuildingSelectedEvents>()
private floorLabelDrawer
private selected: CodeMapBuilding = null
private highlighted: CodeMapBuilding[] = []
private constantHighlight: Map<number, CodeMapBuilding> = new Map()
private folderLabelColorHighlighted = ColorConverter.convertHexToNumber("#FFFFFF")
private folderLabelColorNotHighlighted = ColorConverter.convertHexToNumber("#7A7777")
private folderLabelColorSelected: string
private numberSelectionColor: number
private rayPoint = new Vector3(0, 0, 0)
private normedTransformVector = new Vector3(0, 0, 0)
private highlightedLabel = null
private highlightedLineIndex = -1
private highlightedLine = null
private subscription = this.store.select(mapColorsSelector).subscribe(mapColors => {
this.folderLabelColorSelected = mapColors.selected
this.numberSelectionColor = ColorConverter.convertHexToNumber(this.folderLabelColorSelected)
})
constructor(
private store: Store<CcState>,
private state: State<CcState>,
private idToBuilding: IdToBuildingService,
private threeRendererService: ThreeRendererService
) {
this.scene = new Scene()
this.mapGeometry = new Group()
this.lights = new Group()
this.labels = new Group()
this.floorLabelPlanes = new Group()
this.edgeArrows = new Group()
this.initLights()
this.scene.add(this.mapGeometry)
this.scene.add(this.edgeArrows)
this.scene.add(this.labels)
this.scene.add(this.lights)
this.scene.add(this.floorLabelPlanes)
}
ngOnDestroy(): void {
this.subscription.unsubscribe()
}
private initFloorLabels(nodes: Node[]) {
this.floorLabelPlanes.clear()
const { layoutAlgorithm, enableFloorLabels } = this.state.getValue().appSettings
if (layoutAlgorithm !== LayoutAlgorithm.SquarifiedTreeMap || !enableFloorLabels) {
return
}
const rootNode = this.getRootNode(nodes)
if (!rootNode) {
return
}
const scaling = this.state.getValue().appSettings.scaling
const experimentalFeaturesEnabled = this.state.getValue().appSettings.experimentalFeaturesEnabled
const scalingVector = new Vector3(scaling.x, scaling.y, scaling.z)
this.floorLabelDrawer = new FloorLabelDrawer(
this.mapMesh.getNodes(),
rootNode,
treeMapSize,
scalingVector,
experimentalFeaturesEnabled
)
const floorLabels = this.floorLabelDrawer.draw(this.state.getValue())
Iif (floorLabels.length > 0) {
this.floorLabelPlanes.add(...floorLabels)
this.scene.add(this.floorLabelPlanes)
}
}
private getRootNode(nodes: Node[]) {
return nodes.find(node => node.id === 0)
}
getConstantHighlight() {
return this.constantHighlight
}
highlightBuildings() {
const state = this.state.getValue() as CcState
this.getMapMesh().highlightBuilding(this.highlighted, this.selected, state, this.constantHighlight)
Iif (this.mapGeometry.children[0]) {
this.highlightMaterial(this.mapGeometry.children[0]["material"])
}
this.threeRendererService.render()
}
private selectMaterial(materials: Material[]) {
const selectedMaterial = materials.find(({ userData }) => userData.id === this.selected.node.id)
selectedMaterial?.["color"].setHex(this.numberSelectionColor)
}
private resetMaterial(materials: Material[]) {
const selectedID = this.selected ? this.selected.node.id : -1
for (const material of materials) {
const materialNodeId = material.userData.id
Iif (materialNodeId !== selectedID) {
material["color"]?.setHex(this.folderLabelColorHighlighted)
}
}
}
scaleHeight() {
const scale = this.state.getValue().appSettings.scaling
this.floorLabelDrawer?.translatePlaneCanvases(scale)
this.mapGeometry.scale.set(scale.x, scale.y, scale.z)
this.mapGeometry.position.set(-treeMapSize * scale.x, 0, -treeMapSize * scale.z)
this.mapMesh.setScale(scale)
}
private highlightMaterial(materials: Material[]) {
const highlightedNodeIds = new Set(this.highlighted.map(({ node }) => node.id))
const constantHighlightedNodes = new Set<number>()
for (const { node } of this.constantHighlight.values()) {
constantHighlightedNodes.add(node.id)
}
for (const material of materials) {
const materialNodeId = material.userData.id
if (this.selected && materialNodeId === this.selected.node.id) {
material["color"].setHex(this.numberSelectionColor)
} else if (highlightedNodeIds.has(materialNodeId) || constantHighlightedNodes.has(materialNodeId)) {
material["color"].setHex(this.folderLabelColorHighlighted)
} else {
material["color"]?.setHex(this.folderLabelColorNotHighlighted)
}
}
}
highlightSingleBuilding(building: CodeMapBuilding) {
this.highlighted = []
this.addBuildingToHighlightingList(building)
this.highlightBuildings()
}
addBuildingToHighlightingList(building: CodeMapBuilding) {
this.highlighted.push(building)
}
clearHoverHighlight() {
this.highlighted = []
this.highlightBuildings()
}
clearHighlight() {
if (this.getMapMesh()) {
this.getMapMesh().clearHighlight(this.selected)
this.highlighted = []
this.constantHighlight.clear()
Iif (this.mapGeometry.children[0]) {
this.resetMaterial(this.mapGeometry.children[0]["material"])
}
}
}
selectBuilding(building: CodeMapBuilding) {
// TODO: This check shouldn't be necessary. When investing into model we should investigate why and remove the need.
if (building.id !== this.selected?.id) {
this.store.dispatch(setSelectedBuildingId({ value: building.node.id }))
}
this.getMapMesh().selectBuilding(building, this.folderLabelColorSelected)
this.selected = building
this.highlightBuildings()
this.eventEmitter.emit("onBuildingSelected", { building: this.selected })
Iif (this.mapGeometry.children[0]) {
this.selectMaterial(this.mapGeometry.children[0]["material"])
}
}
animateLabel(hoveredLabel: Object3D, raycaster: Raycaster, labels: Object3D[]) {
if (hoveredLabel !== null && raycaster !== null) {
this.resetLabel()
if (hoveredLabel["material"]) {
hoveredLabel["material"].opacity = 1
}
this.highlightedLineIndex = this.getHoveredLabelLineIndex(labels, hoveredLabel)
this.highlightedLine = labels[this.highlightedLineIndex]
this.rayPoint = new Vector3()
this.rayPoint.subVectors(raycaster.ray.origin, hoveredLabel.position)
const norm = Math.sqrt(this.rayPoint.x ** 2 + this.rayPoint.y ** 2 + this.rayPoint.z ** 2)
this.normedTransformVector = new Vector3(this.rayPoint.x / norm, this.rayPoint.y / norm, this.rayPoint.z / norm)
const cameraPoint = raycaster.ray.origin
const maxDistance = this.calculateMaxDistance(hoveredLabel, labels, cameraPoint)
this.normedTransformVector.multiplyScalar(maxDistance)
hoveredLabel.position.add(this.normedTransformVector)
this.toggleLineAnimation(hoveredLabel)
this.highlightedLabel = hoveredLabel
}
}
resetLineHighlight() {
this.highlightedLineIndex = -1
this.highlightedLine = null
}
resetLabel() {
if (this.highlightedLabel !== null) {
this.highlightedLabel.position.sub(this.normedTransformVector)
this.highlightedLabel.material.opacity = defaultMapColors.labelColorAndAlpha.alpha
if (this.highlightedLine) {
this.toggleLineAnimation(this.highlightedLabel)
}
this.highlightedLabel = null
}
}
getHoveredLabelLineIndex(labels: Object3D[], label: Object3D) {
const index = labels.findIndex(({ uuid }) => uuid === label.uuid)
if (index >= 0) {
return index + 1
}
}
toggleLineAnimation(hoveredLabel: Object3D) {
const endPoint = new Vector3(hoveredLabel.position.x, hoveredLabel.position.y, hoveredLabel.position.z)
const pointsBufferGeometry = this.highlightedLine.geometry as BufferGeometry
const pointsArray = [...pointsBufferGeometry.attributes.position.array]
const geometry = new BufferGeometry().setFromPoints([new Vector3(pointsArray[0], pointsArray[1], pointsArray[2]), endPoint])
const newLineForHighlightedLabel = new Line(geometry, this.highlightedLine.material)
this.labels.children.splice(this.highlightedLineIndex, 1, newLineForHighlightedLabel)
}
getLabelForHoveredNode(hoveredBuilding: CodeMapBuilding, labels: Object3D[]) {
// 2-step: the labels array consists of alternating label and the corresponding label antennae
for (let counter = 0; counter < labels?.length; counter += 2) {
if (labels[counter].userData.node === hoveredBuilding.node) {
return labels[counter]
}
}
return null
}
private isOverlapping(a: Box3, b: Box3, dimension: string) {
return Number(a.max[dimension] >= b.min[dimension] && b.max[dimension] >= a.min[dimension])
}
private getIntersectionDistanceFunction(bboxHoveredLabel: Box3, bboxObstructingLabel: Box3) {
return (distance: number) => {
const normedVector = this.normedTransformVector.clone()
normedVector.multiplyScalar(distance)
bboxHoveredLabel.translate(normedVector)
const count =
this.isOverlapping(bboxObstructingLabel, bboxHoveredLabel, "x") +
this.isOverlapping(bboxObstructingLabel, bboxHoveredLabel, "y")
if (count === 2 || (count === 1 && this.isOverlapping(bboxObstructingLabel, bboxHoveredLabel, "z"))) {
return distance
}
return 0
}
}
private calculateMaxDistance(hoveredLabel: Object3D, labels: Object3D[], cameraPoint: Vector3) {
const bboxHoveredLabel = new Box3().setFromObject(hoveredLabel)
const centerPoint = new Vector3()
bboxHoveredLabel.getCenter(centerPoint)
const distanceLabelCenterToCamera = cameraPoint.distanceTo(centerPoint)
let maxDistance = distanceLabelCenterToCamera / 20
for (let counter = 0; counter < labels.length; counter += 2) {
// Creates a nice small highlighting for hovered, unobstructed
// labels, empirically gathered value.
if (labels[counter] !== hoveredLabel) {
const bboxHoveredLabelWorkingCopy = bboxHoveredLabel.clone()
const bboxObstructingLabel = new Box3().setFromObject(labels[counter])
const centerPoint2 = new Vector3()
bboxObstructingLabel.getCenter(centerPoint2)
const calculateIntersectionDistance = this.getIntersectionDistanceFunction(
bboxHoveredLabelWorkingCopy,
bboxObstructingLabel
)
maxDistance = Math.max(
calculateIntersectionDistance(distanceLabelCenterToCamera - cameraPoint.distanceTo(centerPoint2)),
calculateIntersectionDistance(distanceLabelCenterToCamera - cameraPoint.distanceTo(bboxObstructingLabel.max)),
calculateIntersectionDistance(distanceLabelCenterToCamera - cameraPoint.distanceTo(bboxObstructingLabel.min)),
maxDistance
)
}
}
return maxDistance
}
addNodeAndChildrenToConstantHighlight(codeMapNode: Pick<CodeMapNode, "id">) {
const idToNode = idToNodeSelector(this.state.getValue())
const codeMapBuilding = idToNode.get(codeMapNode.id)
for (const { data } of hierarchy(codeMapBuilding)) {
const building = this.idToBuilding.get(data.id)
if (building) {
this.constantHighlight.set(building.id, building)
}
}
}
removeNodeAndChildrenFromConstantHighlight(codeMapNode: Pick<CodeMapNode, "id">) {
const idToNode = idToNodeSelector(this.state.getValue())
const codeMapBuilding = idToNode.get(codeMapNode.id)
for (const { data } of hierarchy(codeMapBuilding)) {
const building = this.idToBuilding.get(data.id)
if (building) {
this.constantHighlight.delete(building.id)
}
}
}
clearConstantHighlight() {
if (this.constantHighlight.size > 0) {
this.clearHighlight()
}
}
clearSelection() {
Iif (this.selected) {
this.getMapMesh().clearSelection(this.selected)
this.store.dispatch(setSelectedBuildingId({ value: null }))
this.eventEmitter.emit("onBuildingDeselected")
}
Iif (this.highlighted.length > 0) {
this.highlightBuildings()
}
this.selected = null
Iif (this.mapGeometry.children[0]) {
this.resetMaterial(this.mapGeometry.children[0]["material"])
}
}
initLights() {
const ambilight = new AmbientLight(0x70_70_70) // soft white light
const light1 = new DirectionalLight(0xe0_e0_e0, 1.5)
light1.position.set(50, 10, 8).normalize()
const light2 = new DirectionalLight(0xe0_e0_e0, 1.5)
light2.position.set(-50, 10, -8).normalize()
this.lights.add(ambilight)
this.lights.add(light1)
this.lights.add(light2)
}
setMapMesh(nodes: Node[], mesh: CodeMapMesh) {
this.mapMesh = mesh
this.initFloorLabels(nodes)
// Reset children
this.mapGeometry.children.length = 0
this.mapGeometry.position.x = -treeMapSize
this.mapGeometry.position.y = 0
this.mapGeometry.position.z = -treeMapSize
this.mapGeometry.add(this.mapMesh.getThreeMesh())
this.idToBuilding.setIdToBuilding(this.mapMesh.getMeshDescription().buildings)
}
getMapMesh() {
return this.mapMesh
}
getSelectedBuilding() {
return this.selected
}
getHighlightedBuilding() {
return this.highlighted[0]
}
dispose() {
this.mapMesh?.dispose()
}
subscribe<Key extends keyof BuildingSelectedEvents>(key: Key, callback: BuildingSelectedEvents[Key]) {
this.eventEmitter.on(key, (data?) => {
callback(data)
})
}
}
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