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GraphBlock.tsx
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GraphBlock.tsx
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import { Mafs, Coordinates, Plot, Theme } from 'mafs';
import React, { useEffect, useRef, useState } from 'react';
// eslint-disable-next-line import/named
import MathView, { MathViewRef } from 'react-math-view';
import { parseTex } from 'tex-math-parser';
import ML_SHORTCUTS from '@common/shortcuts';
import ML_KEYBINDINGS from '@common/keybindings';
import { ValueProps } from '@renderer/common/types';
function latex2function(latex: string, i: number) {
if (latex != '') {
try {
const parsed = parseTex(String.raw`${latex}`);
return parsed.compile().evaluate({ x: i });
} catch (error) {
return;
}
}
}
function GraphBlockContent({ content, blockStateFunction }: ValueProps) {
const [value, setValue] = useState(content ? (content as string[]) : ['']);
useEffect(() => {
blockStateFunction(value);
}, [value]);
function GraphBlockSetter() {
const ref = useRef<MathViewRef>(null);
return (
<MathView
ref={ref}
value={value[0]}
inlineShortcuts={ML_SHORTCUTS}
keybindings={ML_KEYBINDINGS}
className='math-field-element'
onExport={(ref, latex) => latex}
onMathFieldBlur={() => {
setValue([ref.current?.getValue('latex')]);
}}
plonkSound={null}
keypressSound={null}
/>
);
}
return (
<div className='graph-block-wrapper'>
<GraphBlockSetter />
<Mafs
preserveAspectRatio='contain'
zoom={{ min: 0.5, max: 2 }}
// onClick={
// (point)=> {
// const fixedPoint = {x: point[0], y: point[1]}
// setPoints([...points, <Point key={JSON.stringify(fixedPoint)} x={fixedPoint.x} y={fixedPoint.y} />])
// }
// }
>
<Coordinates.Cartesian />
<Plot.OfX
y={(x: number) => latex2function(value[0], x)}
color={Theme.blue}
/>
{/* {points} */}
</Mafs>
</div>
);
}
export default GraphBlockContent;
// TESTS
// function CreatePolygon() {
// const [pointsList, setPointsList] = React.useState([[1,1], [2,2], [3,-2]] as vec.Vector2[]);
// const [movePoints, setMovePoints] = React.useState(false);
// const handleMove = (point, newPoint) =>{
// setPointsList([...pointsList.filter((p) => p != point), newPoint])
// }
// return (
// <Mafs
// onClick={(point) =>
// movePoints
// ? setPointsList([...pointsList, point])
// : null
// }
// >
// <Coordinates.Cartesian />
// <Polygon points={pointsList} color={Theme.blue} />
// {pointsList.map((point, i) => (
// <MovablePoint
// key={i}
// point={point}
// onMove={newPoint => handleMove(point, newPoint)}
// />
// ))}
// </Mafs>
// );
// }