docker setup
# Conflicts: # .gitignore # backend/vite.config.js # frontend/package-lock.json
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// Define interfaces
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export interface DotConfig {
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id: number;
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value: number;
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x: number;
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link?: string; // URL to navigate to when dot is clicked
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imageUrl?: string; // Image to display in tooltip
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title?: string; // Optional title for the tooltip
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description?: string; // Optional description for the tooltip
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}
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export interface Config {
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totalWidth: number;
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height: number;
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dotRadius: number;
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xUnitSize: number;
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tension: number;
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showGrid: boolean;
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tooltipWidth: number;
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tooltipHeight: number;
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}
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interface ControlPoints {
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x1: number;
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y1: number;
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x2: number;
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y2: number;
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}
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interface TooltipEdges {
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leftmost: number;
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rightmost: number;
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}
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export class ConnectedDotsVisualization {
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private config: Config;
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private dots: DotConfig[];
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private preloadedImages: Map<string, HTMLImageElement> = new Map();
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// DOM Elements
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private scrollContainer: HTMLElement;
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private svg: SVGElement;
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private gridGroup: SVGGElement;
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private curvePath: SVGPathElement;
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private dotsGroup: SVGGElement;
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private tooltipGroup: SVGGElement;
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// Active tooltip
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private activeTooltip: SVGElement | null = null;
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constructor(
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containerId: string,
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dots: DotConfig[],
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config?: Partial<Config>
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) {
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// Use the provided dots or empty array
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this.dots = dots || [];
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// Calculate the total width based on dots data
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const xUnitSize = config?.xUnitSize || 120;
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let calculatedWidth = 0;
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if (this.dots.length > 0) {
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// Find the minimum and maximum x values
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const minX = Math.min(...this.dots.map((dot) => dot.x));
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const maxX = Math.max(...this.dots.map((dot) => dot.x));
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// Calculate width based on the range of x values
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// Add padding on both sides (3 units on each side)
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calculatedWidth = (maxX - minX + 6) * xUnitSize;
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} else {
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calculatedWidth = 6 * xUnitSize; // Default width if no dots
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}
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// Default configuration
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this.config = {
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totalWidth: calculatedWidth,
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height: window.innerHeight,
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dotRadius: 6,
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xUnitSize: xUnitSize,
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tension: 0.5,
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showGrid: false,
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tooltipWidth: 128,
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tooltipHeight: 128,
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...config,
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};
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// Initialize DOM elements
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this.scrollContainer = document.getElementById(containerId) as HTMLElement;
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// Create SVG elements
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this.svg = document.createElementNS("http://www.w3.org/2000/svg", "svg");
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this.gridGroup = document.createElementNS(
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"http://www.w3.org/2000/svg",
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"g"
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);
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this.curvePath = document.createElementNS(
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"http://www.w3.org/2000/svg",
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"path"
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);
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this.dotsGroup = document.createElementNS(
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"http://www.w3.org/2000/svg",
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"g"
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);
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this.tooltipGroup = document.createElementNS(
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"http://www.w3.org/2000/svg",
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"g"
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);
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// Initialize the visualization
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this.addStyles();
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this.initializeSVG();
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this.setupEventListeners();
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this.preloadImages();
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this.render();
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}
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private preloadImages(): void {
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// Extract all unique image URLs from dots
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const imageUrls: string[] = this.dots
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.filter((dot) => dot.imageUrl)
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// biome-ignore lint/style/noNonNullAssertion: <explanation>
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.map((dot) => dot.imageUrl!)
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.filter((url, index, self) => self.indexOf(url) === index); // Remove duplicates
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// Create a loading indicator (optional)
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const loadingCount = { current: 0, total: imageUrls.length };
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if (imageUrls.length > 0) {
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console.log(`Preloading ${imageUrls.length} images...`);
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}
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// Preload each image
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for (const url of imageUrls) {
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const img = new Image();
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// Optional loading events
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img.onload = () => {
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loadingCount.current++;
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if (loadingCount.current === loadingCount.total) {
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console.log("All images preloaded successfully");
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}
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};
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img.onerror = () => {
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loadingCount.current++;
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console.error(`Failed to preload image: ${url}`);
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};
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// Set src to start loading
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img.src = url;
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// Store in map for potential later use
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this.preloadedImages.set(url, img);
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}
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}
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private addStyles(): void {
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// Add necessary styles for tooltips and interactions
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const styleId = "connected-dots-styles";
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if (!document.getElementById(styleId)) {
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const style = document.createElement("style");
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style.id = styleId;
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style.textContent = `
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.dot {
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transition: r 0.2s ease, fill 0.2s ease;
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cursor: pointer;
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}
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.dot:hover {
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fill: rgba(255, 255, 255, 0.9);
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filter: drop-shadow(0 0 5px rgba(255, 255, 255, 0.8));
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}
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.dot-tooltip {
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pointer-events: none;
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opacity: 1; /* Always visible */
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}
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.tooltip-img {
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width: 100%;
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height: 100%;
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object-fit: cover;
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border-radius: 4px;
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}
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`;
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document.head.appendChild(style);
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}
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}
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private initializeSVG(): void {
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// Configure SVG
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this.svg.setAttribute("width", `${this.config.totalWidth}`);
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this.svg.setAttribute("height", `${this.config.height}`);
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this.svg.style.overflow = "visible";
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this.scrollContainer.appendChild(this.svg);
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// Configure grid group
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this.gridGroup.classList.add("grid");
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this.svg.appendChild(this.gridGroup);
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// Configure curve path
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this.curvePath.setAttribute("fill", "none");
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this.curvePath.setAttribute("stroke", "white");
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this.curvePath.setAttribute("stroke-width", "2");
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this.curvePath.setAttribute("stroke-linecap", "round");
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this.curvePath.classList.add("curve-path");
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this.svg.appendChild(this.curvePath);
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// Configure dots group
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this.svg.appendChild(this.dotsGroup);
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// Configure tooltip group (always on top)
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this.tooltipGroup.classList.add("tooltips");
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this.svg.appendChild(this.tooltipGroup);
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}
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private setupEventListeners(): void {
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// Event listeners removed as the controls were removed
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}
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private getDotX(x: number): number {
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return (x + 3) * this.config.xUnitSize;
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}
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private getDotY(value: number): number {
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const centerY = this.config.height / 2;
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// Calculate raw Y position
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const rawY = centerY - (value / 3) * ((this.config.height / 2) * 0.8);
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// Calculate minimum Y position to ensure tooltip fits
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const minY = this.config.tooltipHeight + 30; // tooltip height + some padding
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// Ensure Y is never less than minimum (never too high on screen)
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return Math.max(rawY, minY);
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}
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private calculateBezierControlPoints(
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dots: DotConfig[],
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index: number
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): ControlPoints {
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const tension = this.config.tension * 260; // Scale tension for Bezier curve
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// Get current point and its neighbors
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const curr = dots[index];
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const next = dots[index + 1];
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// Calculate control points for a smooth bezier curve
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const x1 = this.getDotX(curr.x) + tension;
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const y1 = this.getDotY(curr.value);
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const x2 = this.getDotX(next.x) - tension;
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const y2 = this.getDotY(next.value);
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return { x1, y1, x2, y2 };
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}
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private generateBezierPath(): string {
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if (this.dots.length < 2) return "";
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let path = `M ${this.getDotX(this.dots[0].x)} ${this.getDotY(
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this.dots[0].value
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)}`;
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for (let i = 0; i < this.dots.length - 1; i++) {
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const { x1, y1, x2, y2 } = this.calculateBezierControlPoints(
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this.dots,
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i
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);
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const nextX = this.getDotX(this.dots[i + 1].x);
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const nextY = this.getDotY(this.dots[i + 1].value);
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path += ` C ${x1} ${y1}, ${x2} ${y2}, ${nextX} ${nextY}`;
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}
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return path;
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}
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private drawGrid(): void {
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// Clear previous grid
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while (this.gridGroup.firstChild) {
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this.gridGroup.removeChild(this.gridGroup.firstChild);
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}
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if (!this.config.showGrid) return;
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// Horizontal grid lines
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for (const value of [-3, -2, -1, 0, 1, 2, 3]) {
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const line = document.createElementNS(
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"http://www.w3.org/2000/svg",
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"line"
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);
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line.setAttribute("x1", "0");
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line.setAttribute("y1", this.getDotY(value).toString());
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line.setAttribute("x2", this.config.totalWidth.toString());
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line.setAttribute("y2", this.getDotY(value).toString());
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line.setAttribute("stroke", "rgba(219, 39, 119, 0.4)");
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line.setAttribute("stroke-width", "1");
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this.gridGroup.appendChild(line);
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const text = document.createElementNS(
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"http://www.w3.org/2000/svg",
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"text"
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);
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text.setAttribute("x", "10");
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text.setAttribute("y", (this.getDotY(value) + 4).toString());
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text.setAttribute("fill", "rgba(219, 39, 119, 0.8)");
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text.setAttribute("font-size", "12");
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text.textContent = value.toString();
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this.gridGroup.appendChild(text);
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}
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// Vertical grid lines
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const numVertLines = Math.ceil(
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this.config.totalWidth / this.config.xUnitSize
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);
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for (let i = 0; i < numVertLines; i++) {
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const x = i * this.config.xUnitSize;
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const xValue = i - 3; // Starting from -3
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const line = document.createElementNS(
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"http://www.w3.org/2000/svg",
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"line"
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);
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line.setAttribute("x1", x.toString());
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line.setAttribute("y1", "0");
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line.setAttribute("x2", x.toString());
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line.setAttribute("y2", this.config.height.toString());
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line.setAttribute("stroke", "rgba(219, 39, 119, 0.4)");
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line.setAttribute("stroke-width", "1");
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this.gridGroup.appendChild(line);
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if (xValue !== 0) {
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const text = document.createElementNS(
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"http://www.w3.org/2000/svg",
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"text"
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);
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text.setAttribute("x", x.toString());
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text.setAttribute("y", (this.config.height / 2 + 20).toString());
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text.setAttribute("fill", "rgba(219, 39, 119, 0.8)");
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text.setAttribute("font-size", "12");
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text.setAttribute("text-anchor", "middle");
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text.textContent = xValue.toString();
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this.gridGroup.appendChild(text);
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}
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}
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}
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private createTooltip(dot: DotConfig, x: number, y: number): SVGElement {
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const tooltip = document.createElementNS("http://www.w3.org/2000/svg", "g");
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tooltip.classList.add("dot-tooltip");
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tooltip.setAttribute("data-dot-id", dot.id.toString());
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// Calculate tooltip dimensions and position
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const tooltipWidth = 128; // Base width for your tooltip
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const tooltipHeight = (4 / 3) * tooltipWidth;
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const tooltipX = x - tooltipWidth / 2;
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let tooltipY = y - tooltipHeight - 20; // Positioned above the dot
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tooltipY = Math.max(tooltipY, 10); // Ensure it doesn't go above the view
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// Create background rectangle
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const bg = document.createElementNS("http://www.w3.org/2000/svg", "rect");
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bg.setAttribute("x", tooltipX.toString());
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bg.setAttribute("y", tooltipY.toString());
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bg.setAttribute("width", tooltipWidth.toString());
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bg.setAttribute("height", tooltipHeight.toString());
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bg.setAttribute("rx", "5"); // Rounded corners
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bg.classList.add("tooltip-background");
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tooltip.appendChild(bg);
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// Create foreignObject for the content
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const contentContainer = document.createElementNS(
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"http://www.w3.org/2000/svg",
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"foreignObject"
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);
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contentContainer.setAttribute("x", tooltipX.toString());
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contentContainer.setAttribute("y", tooltipY.toString());
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contentContainer.setAttribute("width", tooltipWidth.toString());
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contentContainer.setAttribute("height", tooltipHeight.toString());
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// Create a div to contain the content
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const div = document.createElement("div");
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div.classList.add("tooltip-content");
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// Add title if available
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if (dot.title) {
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const title = document.createElement("div");
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title.textContent = dot.title;
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title.classList.add("tooltip-title");
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div.appendChild(title);
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}
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// Add description if available
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if (dot.description) {
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const desc = document.createElement("div");
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desc.textContent = dot.description;
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desc.classList.add("tooltip-description");
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div.appendChild(desc);
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}
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// Add image if available
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if (dot.imageUrl) {
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// Create a container div
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const imageContainer = document.createElement("div");
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imageContainer.classList.add("image_container"); // Add image_container class
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// Create the image element
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const img = document.createElement("img");
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img.src = dot.imageUrl;
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img.classList.add("tooltip-image");
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// Append image to the container
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imageContainer.appendChild(img);
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// Append the image container to the main div
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div.appendChild(imageContainer);
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}
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// Add arrow path if needed
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const arrowContainer = document.createElement("div");
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const arrow = document.createElementNS(
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"http://www.w3.org/2000/svg",
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"path"
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);
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arrow.setAttribute(
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"d",
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`M ${x} ${tooltipY + tooltipHeight} L ${x} ${
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tooltipY + tooltipHeight - 16
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}`
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);
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arrow.setAttribute("stroke", "white"); // Set the color of the line
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arrow.setAttribute("stroke-width", "1"); // Set the line width to 1px
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arrow.classList.add("tooltip-arrow");
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tooltip.appendChild(arrow);
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// arrowContainer.classList.add("arrow-container");
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// div.appendChild(arrowContainer);
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contentContainer.appendChild(div);
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tooltip.appendChild(contentContainer);
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return tooltip;
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}
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private showTooltip(dot: DotConfig, x: number, y: number): void {
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// Create tooltip
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const tooltip = this.createTooltip(dot, x, y);
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this.tooltipGroup.appendChild(tooltip);
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this.activeTooltip = tooltip;
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}
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private hideTooltip(): void {
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// This method is kept for compatibility but doesn't hide tooltips anymore
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}
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private drawCurve(): void {
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const pathData = this.generateBezierPath();
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this.curvePath.setAttribute("d", pathData);
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}
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private calculateTooltipEdges(): TooltipEdges {
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let leftmost = 0;
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let rightmost = 0;
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let firstTooltipFound = false;
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// If no dots with tooltips, return default values
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if (this.dots.length === 0) {
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return { leftmost: 0, rightmost: this.config.totalWidth };
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}
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// Calculate the leftmost and rightmost edges of all tooltips
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for (const dot of this.dots) {
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// Skip dots without tooltip content
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if (!dot.imageUrl && !dot.title && !dot.description) {
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continue;
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}
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const x = this.getDotX(dot.x);
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const tooltipWidth = this.config.tooltipWidth;
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const tooltipX = x - tooltipWidth / 2;
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if (!firstTooltipFound) {
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leftmost = tooltipX;
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rightmost = tooltipX + tooltipWidth;
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firstTooltipFound = true;
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} else {
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// Update leftmost and rightmost values
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leftmost = Math.min(leftmost, tooltipX);
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rightmost = Math.max(rightmost, tooltipX + tooltipWidth);
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}
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}
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// If no dots with tooltips were found, use default values
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if (!firstTooltipFound) {
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return { leftmost: 0, rightmost: this.config.totalWidth };
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}
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return { leftmost, rightmost };
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}
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private drawDots(): void {
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// Clear previous dots
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while (this.dotsGroup.firstChild) {
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this.dotsGroup.removeChild(this.dotsGroup.firstChild);
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}
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// Clear previous tooltips
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while (this.tooltipGroup.firstChild) {
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this.tooltipGroup.removeChild(this.tooltipGroup.firstChild);
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}
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for (const dot of this.dots) {
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const x = this.getDotX(dot.x);
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const y = this.getDotY(dot.value);
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const circle = document.createElementNS(
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"http://www.w3.org/2000/svg",
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"circle"
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);
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circle.setAttribute("cx", x.toString());
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circle.setAttribute("cy", y.toString());
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circle.setAttribute("r", this.config.dotRadius.toString());
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circle.setAttribute("fill", "white");
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circle.setAttribute("data-dot-id", dot.id.toString());
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circle.classList.add("dot");
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// Always show tooltip if it has content
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if (dot.imageUrl || dot.title || dot.description) {
|
||||
this.showTooltip(dot, x, y);
|
||||
}
|
||||
// Click event for navigation
|
||||
if (dot.link) {
|
||||
circle.addEventListener("click", () => {
|
||||
if (dot.link) {
|
||||
window.location.href = dot.link;
|
||||
} else {
|
||||
console.error("Dot has no link");
|
||||
throw new Error("Dot has no link");
|
||||
}
|
||||
});
|
||||
}
|
||||
this.dotsGroup.appendChild(circle);
|
||||
}
|
||||
}
|
||||
public render(): void {
|
||||
this.drawGrid();
|
||||
this.drawCurve();
|
||||
this.drawDots();
|
||||
// Calculate tooltip edges and set SVG width
|
||||
const { leftmost, rightmost } = this.calculateTooltipEdges();
|
||||
// Set the SVG width based on the rightmost tooltip edge
|
||||
if (rightmost > 0) {
|
||||
// Add some padding
|
||||
const padding = 40;
|
||||
this.config.totalWidth = rightmost + padding;
|
||||
this.svg.setAttribute("width", `${this.config.totalWidth}`);
|
||||
// Update grid width
|
||||
this.drawGrid();
|
||||
}
|
||||
}
|
||||
// Public API methods for external use
|
||||
public updateDots(newDots: DotConfig[]): void {
|
||||
this.dots = newDots;
|
||||
// Initial width calculation based on dot positions (for grid)
|
||||
if (this.dots.length > 0) {
|
||||
// Find the minimum and maximum x values
|
||||
const minX = Math.min(...this.dots.map((dot) => dot.x));
|
||||
const maxX = Math.max(...this.dots.map((dot) => dot.x));
|
||||
// Calculate width based on the range of x values
|
||||
// Add padding on both sides (3 units on each side)
|
||||
this.config.totalWidth = (maxX - minX + 6) * this.config.xUnitSize;
|
||||
}
|
||||
// Render will calculate the tooltip edges and update the SVG width
|
||||
this.render();
|
||||
}
|
||||
public updateConfig(newConfig: Partial<Config>): void {
|
||||
this.config = { ...this.config, ...newConfig };
|
||||
this.render();
|
||||
}
|
||||
public resize(): void {
|
||||
this.config.height = window.innerHeight;
|
||||
this.svg.setAttribute("height", `${this.config.height}`);
|
||||
this.render();
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue