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import { NodeShell, InputAny, InputNumber } from '../components/nodes';
import type { NodeComponentProps, NodeInfo } from '../node.ts';
import { useComputed } from '@preact/signals';
export interface PlotInputs {
data: any;
minX: number;
minY: number;
maxX: number;
maxY: number;
}
export interface PlotOutputs {}
export const Plot = ({ id, x, y, inputs }: NodeComponentProps<PlotInputs>) => {
const { minX, maxX, minY, maxY } = inputs;
const data = inputs.data.value;
const width = 400;
const height = 400;
const xtickCount = 5;
const ytickCount = 5;
const dx = useComputed(() => maxX.value - minX.value);
const dy = useComputed(() => maxY.value - minY.value);
let path = '';
if (data !== null && data.length > 3) {
for (let i = 0; i < data.length; i += Math.max(2, Math.floor(data.length / 1000))) {
if (i >= data.length) break;
const X = (data[i] - minX.value) / dx.value * width;
const Y = height - (data[i+1] - minY.value) / dy.value * height;
path += (i ? 'L' : 'M') + X + ' ' + Y;
}
}
let xticks = [];
for (let x = minX.value; x <= maxX.value; x += dx.value / xtickCount) {
xticks.push([x.toFixed(1), (x - minX.value) / dx.value * width]);
}
let yticks = [];
for (let y = minY.value; y <= maxY.value; y += dy.value / ytickCount) {
yticks.push([y.toFixed(1), height - (y - minY.value) / dy.value * height]);
}
const onMouseDown = (event: MouseEvent) => {
event.stopPropagation();
const onMouseMove = (event: MouseEvent) => {
minX.value -= event.movementX / width * dx.value;
minY.value += event.movementY / height * dy.value;
};
const onMouseUp = () => {
document.removeEventListener('mousemove', onMouseMove);
document.removeEventListener('mouseup', onMouseUp);
};
document.addEventListener('mousemove', onMouseMove);
document.addEventListener('mouseup', onMouseUp);
};
return (
<NodeShell name="Plot" id={id} x={x} y={y}>
<InputAny name="data" label="Data" />
<InputNumber name="minX" label="Min X" value={minX} />
<InputNumber name="minY" label="Min Y" value={minY} />
<InputNumber name="maxX" label="Max X" value={maxX} />
<InputNumber name="maxY" label="Max Y" value={maxY} />
<li>
<svg
width={width + 64}
height={height + 64}
onMouseDown={onMouseDown}
style="background-color:white;margin:4px 8px 0 8px;"
>
{xticks.map(([lbl, x]) => (
<>
<path fill="none" stroke="black" stroke-width="1.5" d={`M ${x+32} ${height+32} v8`} />
<path fill="none" stroke="#aaa" stroke-width="1.5" d={`M ${x+32} ${height+32} v${-height}`} />
<text x={x+24} y={height+56}>{lbl}</text>
</>
))}
{yticks.map(([lbl, y]) => (
<>
<path fill="none" stroke="black" stroke-width="1.5" d={`M ${32} ${y+32} h-8`} />
<path fill="none" stroke="#aaa" stroke-width="1.5" d={`M ${32} ${y+32} h${width}`} />
<text x={4} y={y+36}>{lbl}</text>
</>
))}
<path fill="none" stroke="black" stroke-width="1.5" d={`M ${-minX.value/dx.value*width+32} ${height+32} v${-height}`} />
<path fill="none" stroke="black" stroke-width="1.5" d={`M ${32} ${height+minY.value/dy.value*height+32} h${width}`} />
<rect fill="none" stroke="black" stroke-width="2" x="32" y="32" width={width} height={height} />
<path fill="none" stroke="blue" stroke-width="2" transform="translate(32,32)" d={path} />
</svg>
</li>
</NodeShell>
);
};
export const PlotNode: NodeInfo<PlotInputs, PlotOutputs> = {
component: Plot,
func: () => ({}),
inputs: { data: null, minX: -10, minY: -10, maxX: 10, maxY: 10 },
};
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