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speedspacechart: setup speed limit layer
Signed-off-by: Florian Amsallem <florian.amsallem@gmail.com>
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33 changes: 33 additions & 0 deletions
33
ui-speedspacechart/src/components/helpers/drawElements/speedLimits.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,33 @@ | ||
| import type { DrawFunctionParams } from '../../../types/chartTypes'; | ||
| import { ERROR_60, MARGINS } from '../../const'; | ||
| import { clearCanvas, positionToPosX, maxPositionValue, maxSpeedValue } from '../../utils'; | ||
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| const { CURVE_MARGIN_TOP } = MARGINS; | ||
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| export const drawSpeedLimits = ({ ctx, width, height, store }: DrawFunctionParams) => { | ||
| const { mrsp, trainLength, ratioX, leftOffset } = store; | ||
| const maxSpeed = maxSpeedValue(store); | ||
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| clearCanvas(ctx, width, height); | ||
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| ctx.save(); | ||
| ctx.translate(leftOffset, 0); | ||
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| const maxPosition = maxPositionValue(store); | ||
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| // TODO: draw speed limits | ||
| ctx.beginPath(); | ||
| ctx.lineWidth = 1; | ||
| ctx.lineCap = 'round'; | ||
| ctx.strokeStyle = ERROR_60.hex(); | ||
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| const adjustedHeight = height - CURVE_MARGIN_TOP; | ||
| const y = height - (200 / maxSpeed) * adjustedHeight; | ||
| const xStart = positionToPosX(0, maxPosition, width, ratioX); | ||
| ctx.lineTo(xStart, y); | ||
| const xEnd = positionToPosX(maxPosition, maxPosition, width, ratioX); | ||
| ctx.lineTo(xEnd, y); | ||
| ctx.stroke(); | ||
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| ctx.restore(); | ||
| }; |
27 changes: 27 additions & 0 deletions
27
ui-speedspacechart/src/components/layers/SpeedLimitsLayer.tsx
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,27 @@ | ||
| import React from 'react'; | ||
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| import type { Store } from '../../types/chartTypes'; | ||
| import { drawSpeedLimits } from '../helpers/drawElements/speedLimits'; | ||
| import { useCanvas } from '../hooks'; | ||
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| type SpeedLimitsLayerProps = { | ||
| width: number; | ||
| height: number; | ||
| store: Store; | ||
| }; | ||
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| const SpeedLimitsLayer = ({ width, height, store }: SpeedLimitsLayerProps) => { | ||
| const canvas = useCanvas(drawSpeedLimits, { width, height, store }); | ||
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| return ( | ||
| <canvas | ||
| id="speed-limits-layer" | ||
| className="absolute rounded-t-xl" | ||
| ref={canvas} | ||
| width={width} | ||
| height={height} | ||
| /> | ||
| ); | ||
| }; | ||
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| export default SpeedLimitsLayer; |
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