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authorgrothedev <grothedev@gmail.com>2026-05-29 21:49:20 -0400
committergrothedev <grothedev@gmail.com>2026-05-29 21:49:20 -0400
commit6196004b51a6850909c154f5402ff4858eab479a (patch)
tree126b8bb1600d0a656e0df016e25d08c390f3540e /web-timeplot/src/waterfall.js
parent27dc5849c3eaf4824d79938e7077abdbe2c82e24 (diff)
mv web stuff to root project dirHEADprototypeframeworkmain
Diffstat (limited to 'web-timeplot/src/waterfall.js')
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diff --git a/web-timeplot/src/waterfall.js b/web-timeplot/src/waterfall.js
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--- a/web-timeplot/src/waterfall.js
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-import { Container, Graphics, Text } from 'pixi.js';
-
-/**
- * WaterfallGraph - A scrolling waterfall display
- * Starts simple with basic line rendering
- */
-export class WaterfallGraph {
- constructor(config) {
- this.x = config.x;
- this.y = config.y;
- this.width = config.width;
- this.height = config.height;
- this.title = config.title;
- this.baseColor = config.color || 0xff6666;
-
- this.container = new Container();
- this.container.x = this.x;
- this.container.y = this.y;
-
- // Graphics layers
- this.borderGraphics = new Graphics();
- this.gridGraphics = new Graphics();
- this.linesGraphics = new Graphics();
-
- this.container.addChild(this.gridGraphics);
- this.container.addChild(this.linesGraphics);
- this.container.addChild(this.borderGraphics);
-
- // Title text
- this.titleText = new Text({
- text: this.title,
- style: {
- fontFamily: 'Arial',
- fontSize: 18,
- fill: 0xeeeeee,
- }
- });
- this.titleText.x = 10;
- this.titleText.y = 10;
- this.container.addChild(this.titleText);
-
- // Waterfall data
- this.lines = [];
- this.maxLines = 50;
- this.pointsPerLine = 100;
- this.frameCounter = 0;
-
- this.showGrid = true;
-
- // Time scaling and zoom
- this.scrollSpeed = 1.0; // Speed multiplier for scrolling
- this.baseScrollSpeed = 1.0;
- this.verticalScale = 1.0; // Vertical zoom: >1 = zoomed in (see less history), <1 = zoomed out (see more)
-
- this.draw();
- }
-
- draw() {
- this.drawBorder();
- this.drawGrid();
- }
-
- drawBorder() {
- this.borderGraphics.clear();
- this.borderGraphics.rect(0, 0, this.width, this.height);
- this.borderGraphics.stroke({ width: 2, color: 0x606070 });
- }
-
- drawGrid() {
- this.gridGraphics.clear();
-
- if (!this.showGrid) return;
-
- this.gridGraphics.alpha = 0.3;
-
- const divisions = 10;
- const color = 0x4a7a9a;
-
- // Vertical lines
- for (let i = 0; i <= divisions; i++) {
- const x = (i / divisions) * this.width;
- this.gridGraphics.moveTo(x, 0);
- this.gridGraphics.lineTo(x, this.height);
- this.gridGraphics.stroke({ width: 1, color });
- }
-
- // Horizontal lines
- for (let i = 0; i <= divisions; i++) {
- const y = (i / divisions) * this.height;
- this.gridGraphics.moveTo(0, y);
- this.gridGraphics.lineTo(this.width, y);
- this.gridGraphics.stroke({ width: 1, color });
- }
- }
-
- update(time, graphIdx) {
- this.frameCounter++;
-
- // Add new line every 10 frames
- if (this.frameCounter % 10 === 0 && this.lines.length < this.maxLines) {
- this.addLine(time, graphIdx);
- }
-
- // Scroll existing lines down
- this.scrollLines();
-
- // Remove off-screen lines
- this.lines = this.lines.filter(line => line.yOffset < this.height + 50);
-
- // Redraw all lines
- this.drawLines();
- }
-
- addLine(time, graphIdx) {
- const line = {
- points: [],
- yOffset: 0,
- color: this.generateColor(time),
- };
-
- // Generate sine wave points
- const phase = time + (graphIdx * 2);
- const freq = 2.0 + Math.sin(time * 0.5 + graphIdx) * 1.0;
-
- for (let i = 0; i < this.pointsPerLine; i++) {
- const x = (i / this.pointsPerLine) * this.width;
- const normalizedX = (i / this.pointsPerLine) * 2 - 1; // -1 to 1
- const y = Math.sin(i * 0.1 * freq + phase) * 30; // Amplitude in pixels
-
- line.points.push({ x, y });
- }
-
- this.lines.push(line);
- }
-
- scrollLines() {
- const speed = this.baseScrollSpeed * this.scrollSpeed;
- this.lines.forEach(line => {
- line.yOffset += speed;
- });
- }
-
- setScrollSpeed(speed) {
- // Clamp between 0.1 (slow) and 5.0 (fast)
- this.scrollSpeed = Math.max(0.1, Math.min(5.0, speed));
- }
-
- getScrollSpeed() {
- return this.scrollSpeed;
- }
-
- setVerticalScale(scale) {
- // Clamp between 0.2 (zoomed out, see more history) and 3.0 (zoomed in, see less)
- this.verticalScale = Math.max(0.2, Math.min(3.0, scale));
- }
-
- getVerticalScale() {
- return this.verticalScale;
- }
-
- drawLines() {
- this.linesGraphics.clear();
-
- for (const line of this.lines) {
- if (line.points.length < 2) continue;
-
- // Apply vertical scale to y positions
- // Current time is at top (y=0), older data has larger yOffset
- const scaledYOffset = line.yOffset * this.verticalScale;
-
- // Start path
- const firstPoint = line.points[0];
- this.linesGraphics.moveTo(firstPoint.x, firstPoint.y + scaledYOffset);
-
- // Draw line strip
- for (let i = 1; i < line.points.length; i++) {
- const point = line.points[i];
- this.linesGraphics.lineTo(point.x, point.y + scaledYOffset);
- }
-
- this.linesGraphics.stroke({ width: 2, color: line.color });
- }
- }
-
- generateColor(time) {
- // Cycle through colors based on time
- const hue = (time * 0.1) % 1.0;
- const r = Math.floor(Math.abs(Math.sin(hue * Math.PI * 2)) * 255);
- const g = Math.floor(Math.abs(Math.sin((hue + 0.33) * Math.PI * 2)) * 255);
- const b = Math.floor(Math.abs(Math.sin((hue + 0.66) * Math.PI * 2)) * 255);
-
- return (r << 16) | (g << 8) | b;
- }
-
- setGridVisible(visible) {
- this.showGrid = visible;
- this.drawGrid();
- }
-
- resize(x, y, width, height) {
- this.x = x;
- this.y = y;
- this.width = width;
- this.height = height;
-
- this.container.x = x;
- this.container.y = y;
-
- this.draw();
- }
-
- getVertexCount() {
- return this.lines.reduce((sum, line) => sum + line.points.length, 0);
- }
-
- getLineCount() {
- return this.lines.length;
- }
-}