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import { ThreeSceneService } from "../threeViewer/threeSceneService"
import { Node, EdgeVisibility, CcState } from "../../../codeCharta.model"
import { ArrowHelper, BufferGeometry, CubicBezierCurve3, Line, LineBasicMaterial, Object3D, Vector3 } from "three"
import { ColorConverter } from "../../../util/color/colorConverter"
import { CodeMapBuilding } from "../rendering/codeMapBuilding"
import { IdToBuildingService } from "../../../services/idToBuilding/idToBuilding.service"
import { tap } from "rxjs"
import { hoveredNodeIdSelector } from "../../../state/store/appStatus/hoveredNodeId/hoveredNodeId.selector"
import { debounce } from "../../../util/debounce"
import { Store, State } from "@ngrx/store"
import { edgeVisibilitySelector } from "./utils/edgeVisibility.selector"
@Injectable({ providedIn: "root" })
export class CodeMapArrowService implements OnDestroy {
private map: Map<string, Node>
private VERTICES_PER_LINE = 5
private arrows: Object3D[] = new Array<Object3D>()
private HIGHLIGHT_BUILDING_DELAY = 1
private debounceCalculation: (hoveredBuilding: CodeMapBuilding) => void = debounce(
(hoveredBuilding: CodeMapBuilding) => this.resetEdgesOfBuildings(hoveredBuilding),
this.HIGHLIGHT_BUILDING_DELAY
)
private subscription = this.store
.select(hoveredNodeIdSelector)
.pipe(
tap(hoveredNodeId => {
Iif (hoveredNodeId !== null) {
const hoveredBuilding = this.idToBuildingService.get(hoveredNodeId)
this.onBuildingHovered(hoveredBuilding)
} else {
this.onBuildingUnhovered()
}
})
)
.subscribe()
constructor(
private store: Store<CcState>,
private state: State<CcState>,
private threeSceneService: ThreeSceneService,
private idToBuildingService: IdToBuildingService
) {
this.threeSceneService.subscribe("onBuildingSelected", this.onBuildingSelected)
this.threeSceneService.subscribe("onBuildingDeselected", this.onBuildingDeselected)
}
ngOnDestroy(): void {
this.subscription.unsubscribe()
}
private resetEdgesOfBuildings = (hoveredBuilding: CodeMapBuilding) => {
if (this.isEdgeApplicableForBuilding(hoveredBuilding)) {
this.clearArrows()
this.showEdgesOfBuildings(hoveredBuilding)
}
this.scale()
}
onBuildingSelected = (data: { building: CodeMapBuilding }) => {
if (this.isEdgeApplicableForBuilding(data.building)) {
this.clearArrows()
this.showEdgesOfBuildings()
}
this.scale()
}
onBuildingDeselected = () => {
this.clearArrows()
this.addEdgePreview()
}
onBuildingHovered(hoveredBuilding: CodeMapBuilding) {
this.debounceCalculation(hoveredBuilding)
}
onBuildingUnhovered() {
const { isEdgeMetricVisible } = this.state.getValue().appSettings
if (isEdgeMetricVisible) {
this.clearArrows()
this.showEdgesOfBuildings()
}
this.scale()
}
clearArrows() {
this.arrows = []
// Remove all children
this.threeSceneService.edgeArrows.children.length = 0
}
addArrow(arrowTargetNode: Node, arrowOriginNode: Node, buildingIsOriginNode: boolean) {
const { appSettings, dynamicSettings } = this.state.getValue()
const curveScale = 100 * appSettings.edgeHeight
if (arrowTargetNode.attributes?.[dynamicSettings.heightMetric] && arrowOriginNode.attributes?.[dynamicSettings.heightMetric]) {
const curve = this.createCurve(arrowOriginNode, arrowTargetNode, curveScale)
const color = ColorConverter.getNumber(appSettings.mapColors[buildingIsOriginNode ? "outgoingEdge" : "incomingEdge"])
this.highlightBuilding(buildingIsOriginNode ? arrowTargetNode : arrowOriginNode)
this.setCurveColor(curve, color)
}
}
addEdgePreview() {
const edges = edgeVisibilitySelector(this.state.getValue())
for (const edge of edges) {
const originNode = this.map.get(edge.fromNodeName)
const targetNode = this.map.get(edge.toNodeName)
Iif (originNode && targetNode && edge.visible !== EdgeVisibility.none && edge.visible) {
//TODO It seems originNode or targetNode might be undefined here,
// I think it results from the method being called multiple times when it might not be available yet
// I changed that back to avoid console errors and re-enable the edge-metric, however we should investigate why this is happening
const curveScale = 100 * this.state.getValue().appSettings.edgeHeight
const curve = this.createCurve(originNode, targetNode, curveScale)
this.previewMode(curve, edge.visible)
}
}
}
addEdgeMapBasedOnNodes(nodes: Node[]) {
this.map = this.getNodesAsMap(nodes)
}
scale() {
const { scaling } = this.state.getValue().appSettings
for (const arrow of this.arrows) {
arrow.scale.x = scaling.x
arrow.scale.y = scaling.y
arrow.scale.z = scaling.z
}
}
private isEdgeApplicableForBuilding(codeMapBuilding: CodeMapBuilding) {
return this.state.getValue().appSettings.isEdgeMetricVisible && codeMapBuilding && !codeMapBuilding.node.flat
}
private showEdgesOfBuildings(hoveredbuilding?: CodeMapBuilding) {
const buildings: Map<string, Node> = new Map()
const selectedBuilding = this.threeSceneService.getSelectedBuilding()
if (selectedBuilding) {
const { node } = selectedBuilding
buildings.set(node.path, node)
}
if (hoveredbuilding) {
const { node } = hoveredbuilding
buildings.set(node.path, node)
}
if (buildings.size > 0) {
this.buildPairingEdges(buildings)
} else {
this.addEdgePreview()
}
}
private buildPairingEdges(node: Map<string, Node>) {
const { edges } = this.state.getValue().fileSettings
for (const edge of edges) {
const originNode = this.map.get(edge.fromNodeName)
// TODO: Maps should only have valid edges. If that's not the case, the
// internal decoration is likely faulty. Check if only test data is not
// correct or what the root cause of these checks actually is.
if (originNode === undefined) {
continue
}
const targetNode = this.map.get(edge.toNodeName)
Iif (targetNode === undefined) {
continue
}
if (node.has(originNode.path)) {
this.addArrow(targetNode, originNode, true)
this.threeSceneService.highlightBuildings()
// TODO: Check if the second if case is actually necessary. Edges should
// always have valid origin and target paths. The test data is likely
// faulty and should be improved.
} else Iif (node.has(targetNode.path)) {
this.addArrow(targetNode, originNode, false)
this.threeSceneService.highlightBuildings()
}
}
}
private createCurve(arrowOriginNode: Node, arrowTargetNode: Node, curveScale) {
const bezierPoint2 = arrowOriginNode.outgoingEdgePoint.clone()
const bezierPoint3 = arrowTargetNode.incomingEdgePoint.clone()
const arrowHeight = Math.max(bezierPoint2.y + arrowTargetNode.height, bezierPoint3.y + 1) + curveScale
bezierPoint2.setY(arrowHeight)
bezierPoint3.setY(arrowHeight)
return new CubicBezierCurve3(arrowOriginNode.outgoingEdgePoint, bezierPoint2, bezierPoint3, arrowTargetNode.incomingEdgePoint)
}
private highlightBuilding(node: Node) {
const building = this.threeSceneService.getMapMesh().getMeshDescription().getBuildingByPath(node.path)
this.threeSceneService.addBuildingToHighlightingList(building)
}
private setCurveColor(bezier: CubicBezierCurve3, color: number, bezierPoints = 50) {
const points = bezier.getPoints(bezierPoints)
const curveObject = this.buildLine(points, color)
curveObject.add(this.buildArrow(points))
this.threeSceneService.edgeArrows.add(curveObject)
this.arrows.push(curveObject)
}
private previewMode(curve, edgeVisibility: EdgeVisibility) {
Iif (edgeVisibility === EdgeVisibility.both || edgeVisibility === EdgeVisibility.from) {
const outgoingArrow: Object3D = this.makeArrowFromBezier(curve, false)
this.threeSceneService.edgeArrows.add(outgoingArrow)
this.arrows.push(outgoingArrow)
}
Iif (edgeVisibility === EdgeVisibility.both || edgeVisibility === EdgeVisibility.to) {
const incomingArrow: Object3D = this.makeArrowFromBezier(curve, true)
this.threeSceneService.edgeArrows.add(incomingArrow)
this.arrows.push(incomingArrow)
}
}
private getNodesAsMap(nodes: Node[]) {
const map: Map<string, Node> = new Map()
for (const node of nodes) {
map.set(node.path, node)
}
return map
}
private makeArrowFromBezier(bezier: CubicBezierCurve3, incoming: boolean, bezierPoints = 50) {
const points = bezier.getPoints(bezierPoints)
const { incomingEdge, outgoingEdge } = this.state.getValue().appSettings.mapColors
const arrowColor = incoming ? incomingEdge : outgoingEdge
const pointsPreviews = incoming
? points.slice(bezierPoints + 1 - this.VERTICES_PER_LINE)
: points.slice(0, points.length - (bezierPoints + 1 - this.VERTICES_PER_LINE))
return this.buildEdge(pointsPreviews, ColorConverter.getNumber(arrowColor))
}
private buildEdge(points: Vector3[], color: number): Object3D {
const curveObject = this.buildLine(points, color)
curveObject.add(this.buildArrow(points))
return curveObject
}
private buildLine(points: Vector3[], color = 0) {
const geometry = new BufferGeometry()
geometry.setFromPoints(points)
const material = new LineBasicMaterial({ color, linewidth: 1 })
return new Line(geometry, material)
}
private buildArrow(points: Vector3[], ARROW_COLOR = 0, headLength = 10, headWidth = 10) {
const direction = points.at(-1).clone().sub(points.at(-2).clone()).normalize()
const origin = points.at(-1).clone()
if (direction.y < 0) {
origin.y += headLength + 1
}
return new ArrowHelper(direction, origin, headLength + 1, ARROW_COLOR, headLength, headWidth)
}
}
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