clean up node naming
This commit is contained in:
220
frontend/src/ThresholdHistogram.jsx
Normal file
220
frontend/src/ThresholdHistogram.jsx
Normal file
@@ -0,0 +1,220 @@
|
||||
import React, { useEffect, useRef, useState, useCallback } from 'react';
|
||||
import { getAxisScale } from './valueFormatting';
|
||||
|
||||
const ASPECT_RATIO = 3.2 / 2.2;
|
||||
const MARGINS = { top: 18, right: 16, bottom: 34, left: 56 };
|
||||
|
||||
function clamp(v, min, max) { return Math.max(min, Math.min(max, v)); }
|
||||
function round4(v) { return parseFloat(v.toFixed(4)); }
|
||||
function trimZeros(t) { return t.replace(/(?:\.0+|(\.\d+?)0+)$/, '$1'); }
|
||||
|
||||
function formatTick(value) {
|
||||
const abs = Math.abs(value);
|
||||
if (abs === 0) return '0';
|
||||
if (abs >= 1e4 || abs < 1e-3) return value.toExponential(1).replace('e+', 'e');
|
||||
if (abs >= 100) return trimZeros(value.toFixed(0));
|
||||
if (abs >= 10) return trimZeros(value.toFixed(1));
|
||||
if (abs >= 1) return trimZeros(value.toFixed(2));
|
||||
return trimZeros(value.toFixed(3));
|
||||
}
|
||||
|
||||
function makeTicks(min, max, count = 5) {
|
||||
if (!Number.isFinite(min) || !Number.isFinite(max) || min === max) return [min];
|
||||
return Array.from({ length: count }, (_, i) => min + (max - min) * i / (count - 1));
|
||||
}
|
||||
|
||||
function getExtent(values, fallbackMin = 0, fallbackMax = 1) {
|
||||
if (!Array.isArray(values) || !values.length) return [fallbackMin, fallbackMax];
|
||||
let min = Infinity, max = -Infinity;
|
||||
for (const v of values) { if (Number.isFinite(v)) { if (v < min) min = v; if (v > max) max = v; } }
|
||||
return (Number.isFinite(min) && Number.isFinite(max)) ? [min, max] : [fallbackMin, fallbackMax];
|
||||
}
|
||||
|
||||
export default function ThresholdHistogram({ overlay, threshold, thresholdConnected, nodeId, onWidgetChange }) {
|
||||
const containerRef = useRef(null);
|
||||
const [dragging, setDragging] = useState(false);
|
||||
const [size, setSize] = useState({ width: 0 });
|
||||
|
||||
useEffect(() => {
|
||||
if (!containerRef.current) return undefined;
|
||||
const update = () => {
|
||||
if (!containerRef.current) return;
|
||||
setSize({ width: Math.max(1, Math.round(containerRef.current.clientWidth || 320)) });
|
||||
};
|
||||
update();
|
||||
if (typeof ResizeObserver === 'function') {
|
||||
const ro = new ResizeObserver((entries) => {
|
||||
const e = entries[0];
|
||||
if (e) setSize({ width: Math.max(1, Math.round(e.contentRect.width)) });
|
||||
});
|
||||
ro.observe(containerRef.current);
|
||||
return () => ro.disconnect();
|
||||
}
|
||||
window.addEventListener('resize', update);
|
||||
return () => window.removeEventListener('resize', update);
|
||||
}, []);
|
||||
|
||||
const xValues = Array.isArray(overlay?.x_axis) && overlay.x_axis.length === overlay.line?.length
|
||||
? overlay.x_axis : overlay?.line?.map((_, i) => i) || [];
|
||||
const yValues = Array.isArray(overlay?.line) ? overlay.line : [];
|
||||
const method = overlay?.method ?? 'absolute';
|
||||
const locked = (overlay?.locked ?? false) || !!thresholdConnected;
|
||||
const xMin = overlay?.x_min ?? 0;
|
||||
const xMax = overlay?.x_max ?? 1;
|
||||
|
||||
const width = size.width || 320;
|
||||
const height = Math.round(width / ASPECT_RATIO);
|
||||
const plotLeft = MARGINS.left;
|
||||
const plotTop = MARGINS.top;
|
||||
const plotWidth = Math.max(1, width - MARGINS.left - MARGINS.right);
|
||||
const plotHeight = Math.max(1, height - MARGINS.top - MARGINS.bottom);
|
||||
|
||||
const [xExtMin, xExtMax] = getExtent(xValues, 0, 1);
|
||||
const [yMinRaw, yMaxRaw] = getExtent(yValues, 0, 1);
|
||||
const yPad = yMinRaw === yMaxRaw ? 1 : (yMaxRaw - yMinRaw) * 0.08;
|
||||
const yMin = yMinRaw - yPad;
|
||||
const yMax = yMaxRaw + yPad;
|
||||
|
||||
const scaleX = useCallback((v) => {
|
||||
if (xExtMax === xExtMin) return plotLeft + plotWidth / 2;
|
||||
return plotLeft + (v - xExtMin) / (xExtMax - xExtMin) * plotWidth;
|
||||
}, [plotLeft, plotWidth, xExtMin, xExtMax]);
|
||||
|
||||
const scaleY = useCallback((v) => {
|
||||
if (yMax === yMin) return plotTop + plotHeight / 2;
|
||||
return plotTop + (1 - (v - yMin) / (yMax - yMin)) * plotHeight;
|
||||
}, [plotTop, plotHeight, yMin, yMax]);
|
||||
|
||||
// Compute marker x-fraction from current threshold widget value
|
||||
const markerFrac = (() => {
|
||||
if (locked) return clamp(overlay?.threshold_frac ?? 0.5, 0, 1);
|
||||
const t = threshold ?? 0;
|
||||
if (method === 'relative') return clamp(t, 0, 1);
|
||||
return (xMax === xMin) ? 0.5 : clamp((t - xMin) / (xMax - xMin), 0, 1);
|
||||
})();
|
||||
|
||||
const markerX = plotLeft + markerFrac * plotWidth;
|
||||
|
||||
// Snap marker circle to histogram line height
|
||||
const markerY = (() => {
|
||||
if (!xValues.length || !yValues.length) return plotTop + plotHeight / 2;
|
||||
const targetX = xExtMin + markerFrac * (xExtMax - xExtMin);
|
||||
let best = 0, bestDist = Infinity;
|
||||
for (let i = 0; i < xValues.length; i++) {
|
||||
const d = Math.abs(xValues[i] - targetX);
|
||||
if (d < bestDist) { bestDist = d; best = i; }
|
||||
}
|
||||
return scaleY(yValues[best]);
|
||||
})();
|
||||
|
||||
const handleDrag = useCallback((e) => {
|
||||
if (!onWidgetChange || !nodeId || locked || !containerRef.current) return;
|
||||
const rect = containerRef.current.getBoundingClientRect();
|
||||
const frac = clamp((e.clientX - rect.left - plotLeft) / plotWidth, 0, 1);
|
||||
// Relative threshold is a 0-1 fraction — round to 4 dp is fine.
|
||||
// Absolute threshold is in SI units (could be nm/m scale) — keep full float precision.
|
||||
const newThreshold = method === 'relative'
|
||||
? round4(frac)
|
||||
: xMin + frac * (xMax - xMin);
|
||||
onWidgetChange(nodeId, 'threshold', newThreshold);
|
||||
}, [onWidgetChange, nodeId, locked, plotLeft, plotWidth, method, xMin, xMax]);
|
||||
|
||||
const onPointerDown = useCallback((e) => {
|
||||
if (locked) return;
|
||||
e.preventDefault();
|
||||
e.stopPropagation();
|
||||
e.currentTarget.setPointerCapture(e.pointerId);
|
||||
setDragging(true);
|
||||
}, [locked]);
|
||||
|
||||
const onPointerMove = useCallback((e) => {
|
||||
if (dragging) handleDrag(e);
|
||||
}, [dragging, handleDrag]);
|
||||
|
||||
const onPointerUp = useCallback(() => setDragging(false), []);
|
||||
|
||||
const path = yValues.map((y, i) => `${i === 0 ? 'M' : 'L'} ${scaleX(xValues[i])} ${scaleY(y)}`).join(' ');
|
||||
const xTickCount = Math.max(2, Math.min(5, Math.floor(plotWidth / 70)));
|
||||
const yTickCount = Math.max(2, Math.min(5, Math.floor(plotHeight / 40)));
|
||||
const xTicks = makeTicks(xExtMin, xExtMax, xTickCount);
|
||||
const yTicks = makeTicks(yMin, yMax, yTickCount);
|
||||
const xRepresentative = Math.max(Math.abs(xExtMin), Math.abs(xExtMax));
|
||||
const { scale: xScale, unitLabel: xUnitLabel } = getAxisScale(xRepresentative, overlay?.x_unit);
|
||||
const plotStroke = clamp(plotWidth / 240, 1.4, 2.6);
|
||||
const gridStroke = clamp(plotWidth / 900, 0.6, 1.1);
|
||||
const cursorStroke = clamp(plotWidth / 220, 1.4, 2.2);
|
||||
const markerRadius = clamp(plotWidth / 42, 5.5, 9);
|
||||
const markerLabelSize = clamp(plotWidth / 34, 8, 11);
|
||||
|
||||
return (
|
||||
<div
|
||||
ref={containerRef}
|
||||
className="nodrag nowheel lineplot-overlay"
|
||||
onPointerMove={onPointerMove}
|
||||
onPointerUp={onPointerUp}
|
||||
onLostPointerCapture={onPointerUp}
|
||||
>
|
||||
{locked && (
|
||||
<div style={{ fontSize: 10, color: 'var(--danger-locked)', padding: '0 4px 3px', textAlign: 'right', letterSpacing: '0.04em' }}>
|
||||
{thresholdConnected ? 'Locked — driven by socket' : 'Locked — Otsu auto-threshold'}
|
||||
</div>
|
||||
)}
|
||||
<svg width={width} height={height} viewBox={`0 0 ${width} ${height}`} className="lineplot-svg">
|
||||
<rect x="0" y="0" width={width} height={height} fill="var(--bg-deep)" />
|
||||
|
||||
{xTicks.map((tick) => {
|
||||
const x = scaleX(tick);
|
||||
return (
|
||||
<g key={`x-${tick}`}>
|
||||
<line x1={x} y1={plotTop} x2={x} y2={plotTop + plotHeight} stroke="var(--border-default)" strokeWidth={gridStroke} opacity="0.45" />
|
||||
<text x={x} y={height - 10} textAnchor="middle" fontSize="11" fill="var(--text-secondary)">{formatTick(tick / xScale)}</text>
|
||||
</g>
|
||||
);
|
||||
})}
|
||||
{xUnitLabel && (
|
||||
<text x={plotLeft + plotWidth} y={height - 1} textAnchor="end" fontSize="10" fill="var(--text-muted)">{xUnitLabel}</text>
|
||||
)}
|
||||
|
||||
{yTicks.map((tick) => {
|
||||
const y = scaleY(tick);
|
||||
return (
|
||||
<g key={`y-${tick}`}>
|
||||
<line x1={plotLeft} y1={y} x2={plotLeft + plotWidth} y2={y} stroke="var(--border-default)" strokeWidth={gridStroke} opacity="0.45" />
|
||||
<text x={plotLeft - 10} y={y + 4} textAnchor="end" fontSize="11" fill="var(--text-secondary)">{formatTick(tick)}</text>
|
||||
</g>
|
||||
);
|
||||
})}
|
||||
|
||||
<rect x={plotLeft} y={plotTop} width={plotWidth} height={plotHeight} fill="none" stroke="var(--border-default)" strokeWidth={gridStroke + 0.3} />
|
||||
<path d={path} fill="none" stroke="var(--plot-line)" strokeWidth={plotStroke} strokeLinecap="round" strokeLinejoin="round" />
|
||||
|
||||
{/* Threshold marker line */}
|
||||
<line
|
||||
x1={markerX} y1={plotTop} x2={markerX} y2={plotTop + plotHeight}
|
||||
stroke="var(--marker)" strokeWidth={cursorStroke} strokeDasharray="10 6" opacity="0.95"
|
||||
/>
|
||||
|
||||
{/* Threshold marker circle */}
|
||||
<g onPointerDown={onPointerDown} style={{ cursor: locked ? 'default' : 'ew-resize' }}>
|
||||
<circle
|
||||
cx={markerX}
|
||||
cy={markerY}
|
||||
r={markerRadius}
|
||||
className={`lineplot-marker ${locked ? 'lineplot-marker-locked' : ''}`}
|
||||
/>
|
||||
<text
|
||||
x={markerX}
|
||||
y={markerY}
|
||||
textAnchor="middle"
|
||||
dominantBaseline="middle"
|
||||
fontSize={markerLabelSize}
|
||||
className="lineplot-marker-label"
|
||||
pointerEvents="none"
|
||||
>
|
||||
T
|
||||
</text>
|
||||
</g>
|
||||
</svg>
|
||||
</div>
|
||||
);
|
||||
}
|
||||
Reference in New Issue
Block a user