Press n or j to go to the next uncovered block, b, p or k for the previous block.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 | 50x 50x 50x 6x 6x 6x 6x 6x 6x 6x 6x 6x 6x 6x 25x 18x 13x 18x 5x 5x 5x 5x 5x 13x 13x 13x 5x 3x 3x 6x 6x 6x 3x 13x 13x 13x 13x 13x 13x 13x 13x 13x 13x 13x 13x 13x 18x 18x 18x 18x 18x 13x 13x 13x 13x 13x 13x 13x 13x 13x 13x 13x 13x 13x 13x 13x 13x 18x 18x 18x 18x 18x 18x 2x 2x 2x 2x 16x 16x 16x 18x 2x 2x 2x 2x 2x 2x 2x | "use strict" import { Node } from "../../../../codeCharta.model" import { CanvasTexture, BackSide, Mesh, MeshBasicMaterial, PlaneGeometry, RepeatWrapping, Vector3 } from "three" import { FloorLabelHelper } from "./floorLabelHelper" export class FloorLabelDrawer { private floorLabelPlanes: Mesh[] = [] private readonly rootNode: Node private readonly mapSize: number private readonly scaling: Vector3 readonly folderGeometryHeight: number = 2.01 private lastScaling: Vector3 = new Vector3(1, 1, 1) private floorLabelPlaneLevel: Map<Mesh, number> = new Map<Mesh, number>() private floorLabelsPerLevel = new Map() constructor(nodes: Node[], rootNode: Node, mapSize: number, scaling: Vector3, experimentalFeaturesEnabled: boolean) { this.collectLabelsPerLevel(nodes) this.rootNode = rootNode this.mapSize = mapSize this.scaling = scaling this.folderGeometryHeight = experimentalFeaturesEnabled ? Math.ceil(2 / FloorLabelHelper.getMapResolutionScaling(rootNode.width)) * 2 : 2.01 } private collectLabelsPerLevel(nodes: Node[]) { for (const node of nodes) { if (FloorLabelHelper.isLabelNode(node)) { if (!this.floorLabelsPerLevel.has(node.mapNodeDepth)) { this.floorLabelsPerLevel.set(node.mapNodeDepth, []) } this.floorLabelsPerLevel.get(node.mapNodeDepth).push(node) } } } draw() { const { width: rootNodeWidth, length: rootNodeHeight } = this.rootNode const mapResolutionScaling = FloorLabelHelper.getMapResolutionScaling(rootNodeWidth) const scaledMapWidth = rootNodeWidth * mapResolutionScaling const scaledMapHeight = rootNodeHeight * mapResolutionScaling for (const [floorLevel, floorNodesPerLevel] of this.floorLabelsPerLevel) { const { textCanvas, context } = FloorLabelDrawer.createLabelPlaneCanvas(scaledMapWidth, scaledMapHeight) this.writeLabelsOnCanvas(context, floorNodesPerLevel, mapResolutionScaling) this.drawLevelPlaneGeometry(textCanvas, scaledMapWidth, scaledMapHeight, floorLevel, mapResolutionScaling) } return this.floorLabelPlanes } translatePlaneCanvases(scale: Vector3) { const defaultFolderHeight = 2 for (const plane of this.floorLabelPlanes) { const level = this.floorLabelPlaneLevel.get(plane) + 1 const difference = level * this.lastScaling.y - level * scale.y plane.geometry.translate(0, 0, defaultFolderHeight * difference) } this.lastScaling = scale } private static createLabelPlaneCanvas(scaledMapWidth: number, scaledMapHeight: number) { const textCanvas = document.createElement("canvas") // Flip map width and height to support non squarified maps (e.g. if a rectangular subfolder is focused) let textCanvasWidth = scaledMapWidth let textCanvasHeight = scaledMapHeight Iif (scaledMapWidth > scaledMapHeight) { textCanvasWidth = scaledMapHeight textCanvasHeight = scaledMapWidth } textCanvas.width = textCanvasWidth textCanvas.height = textCanvasHeight const context = textCanvas.getContext("2d") context.fillStyle = "white" context.textAlign = "center" context.textBaseline = "middle" return { textCanvas, context } } private writeLabelsOnCanvas(context: CanvasRenderingContext2D, floorNodesOfCurrentLevel: Node[], mapResolutionScaling: number) { const { width: rootNodeWidth, length: rootNodeHeight } = this.rootNode for (const floorNode of floorNodesOfCurrentLevel) { let fontSize = floorNode.depth === 0 ? Math.max(Math.floor(rootNodeWidth * 0.03), 120) : Math.max(Math.floor(rootNodeWidth * 0.023), 95) fontSize = fontSize * mapResolutionScaling context.font = `${fontSize}px Arial` const textToFill = FloorLabelDrawer.getLabelAndSetContextFont(floorNode, context, mapResolutionScaling, fontSize) context.fillText( textToFill.labelText, (rootNodeHeight - floorNode.y0 - floorNode.length / 2) * mapResolutionScaling, (floorNode.x0 + floorNode.width) * mapResolutionScaling - textToFill.fontSize / 2 ) } } private drawLevelPlaneGeometry(textCanvas, scaledMapWidth, scaledMapHeight, floorLevel, mapResolutionScaling) { const labelTexture = new CanvasTexture(textCanvas) labelTexture.wrapS = RepeatWrapping labelTexture.wrapT = RepeatWrapping labelTexture.repeat.x = -1 labelTexture.needsUpdate = true labelTexture.rotation = (90 * Math.PI) / 180 const plane = new PlaneGeometry(scaledMapWidth, scaledMapHeight) const material = new MeshBasicMaterial({ side: BackSide, map: labelTexture, transparent: true }) const planeMesh = new Mesh(plane, material) // Rotate plane to be horizontally planeMesh.rotateX((90 * Math.PI) / 180) // Position plane over the map const liftToPreventZFighting = 2 plane.translate( scaledMapWidth / 2, scaledMapHeight / 2, -this.folderGeometryHeight * this.scaling.y * (floorLevel + 1) - liftToPreventZFighting ) // Move and scale plane mesh exactly like the squarified map planeMesh.scale.set(this.scaling.x / mapResolutionScaling, this.scaling.z / mapResolutionScaling, 1) planeMesh.position.set(-this.mapSize * this.scaling.x, 0, -this.mapSize * this.scaling.z) this.floorLabelPlanes.push(planeMesh) this.floorLabelPlaneLevel.set(planeMesh, floorLevel) } private static getLabelAndSetContextFont( labelNode: Node, context: CanvasRenderingContext2D, mapResolutionScaling: number, fontSize: number ) { const labelText = labelNode.name const floorWidth = labelNode.length * mapResolutionScaling context.font = `${fontSize}px Arial` const textMetrics = context.measureText(labelText) const fontScaleFactor = FloorLabelDrawer.getFontScaleFactor(floorWidth, textMetrics.width) if (fontScaleFactor <= 0.5) { // Font will be to small. // So scale text not smaller than 0.5 and shorten it as well fontSize = fontSize * 0.5 fontSize = Math.floor(Math.min(fontSize, labelNode.width * mapResolutionScaling)) context.font = `${fontSize}px Arial` return { labelText: FloorLabelDrawer.getFittingLabelText(context, floorWidth, labelText), fontSize } } fontSize = Math.floor(Math.min(fontSize * fontScaleFactor, labelNode.width * mapResolutionScaling)) context.font = `${fontSize}px Arial` return { labelText, fontSize } } private static getFontScaleFactor(canvasWidth: number, widthOfText: number) { return widthOfText < canvasWidth ? 1 : canvasWidth / widthOfText } private static getFittingLabelText(context: CanvasRenderingContext2D, canvasWidth: number, labelText: string) { const { width } = context.measureText(labelText) let textSplitIndex = Math.floor((labelText.length * canvasWidth) / width) let abbreviatedText = `${labelText.slice(0, textSplitIndex)}…` // TODO: Check if this is expensive. If it is, let's use a logarithmic algorithm instead. // This is needed for non monospaced fonts, imagine the following example in a non monospaced font: "WWWIII" while (context.measureText(abbreviatedText).width >= canvasWidth && textSplitIndex > 1) { // textSplitIndex > 1 to ensure it contains at least one char textSplitIndex -= 1 abbreviatedText = `${labelText.slice(0, textSplitIndex)}…` } return abbreviatedText } } |