Codex
84 lines
3.1 KiB
PowerShell
84 lines
3.1 KiB
PowerShell
$ErrorActionPreference = 'Stop'
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$projectRoot = [System.IO.Path]::GetFullPath((Join-Path $PSScriptRoot '..'))
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$outputPath = Join-Path $projectRoot 'assets/array-geometries/rectangular-16x12.array.json'
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$microphones = [System.Collections.Generic.List[object]]::new()
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$columns = 16
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$rows = 12
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$width = 0.45
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$height = 0.45
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for ($row = 0; $row -lt $rows; $row++) {
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for ($column = 0; $column -lt $columns; $column++) {
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$index = $row * $columns + $column
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$x = -$width / 2 + $column * $width / ($columns - 1)
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$y = -$height / 2 + $row * $height / ($rows - 1)
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$microphones.Add([ordered]@{
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id = 'mic-{0:D3}' -f ($index + 1)
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position = @([Math]::Round($x, 6), [Math]::Round($y, 6), 0)
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})
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}
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}
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$arrayDefinition = [ordered]@{
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schemaVersion = '1.0.0'
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kind = 'micarrsim.array'
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id = 'rectangular-16x12'
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name = '16x12 rectangular baseline'
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description = '192-channel uniform rectangular layout on a 0.45 m square aperture'
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units = 'm'
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coordinateSystem = [ordered]@{
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handedness = 'right'
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xAxis = 'right'
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yAxis = 'up'
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zAxis = 'toward-scene'
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}
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aperture = [ordered]@{ width = $width; height = $height }
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microphones = $microphones
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}
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$json = $arrayDefinition | ConvertTo-Json -Depth 8
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[System.IO.File]::WriteAllText($outputPath, $json + [Environment]::NewLine, [System.Text.UTF8Encoding]::new($false))
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Write-Host "Generated $($microphones.Count) microphones: $outputPath"
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$spiralOutputPath = Join-Path $projectRoot 'assets/array-geometries/fermat-spiral-192.array.json'
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$spiralMicrophones = [System.Collections.Generic.List[object]]::new()
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$microphoneCount = 192
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$radius = 0.225
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$goldenAngle = [Math]::PI * (3 - [Math]::Sqrt(5))
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for ($index = 0; $index -lt $microphoneCount; $index++) {
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$microphoneRadius = $radius * [Math]::Sqrt(($index + 0.5) / $microphoneCount)
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$angle = $index * $goldenAngle
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$x = $microphoneRadius * [Math]::Cos($angle)
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$y = $microphoneRadius * [Math]::Sin($angle)
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$spiralMicrophones.Add([ordered]@{
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id = 'mic-{0:D3}' -f ($index + 1)
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position = @([Math]::Round($x, 6), [Math]::Round($y, 6), 0)
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})
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}
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$spiralDefinition = [ordered]@{
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schemaVersion = '1.0.0'
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kind = 'micarrsim.array'
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id = 'fermat-spiral-192'
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name = '192-channel Fermat spiral'
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description = 'Equal-area Fermat spiral on a 0.45 m circular aperture for comparison with the rectangular baseline'
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units = 'm'
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coordinateSystem = [ordered]@{
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handedness = 'right'
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xAxis = 'right'
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yAxis = 'up'
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zAxis = 'toward-scene'
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}
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aperture = [ordered]@{ width = 0.45; height = 0.45 }
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microphones = $spiralMicrophones
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}
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$spiralJson = $spiralDefinition | ConvertTo-Json -Depth 8
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[System.IO.File]::WriteAllText(
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$spiralOutputPath,
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$spiralJson + [Environment]::NewLine,
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[System.Text.UTF8Encoding]::new($false)
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)
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Write-Host "Generated $($spiralMicrophones.Count) microphones: $spiralOutputPath"
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