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Add square-root scale mapping

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Adrian A. Baumann
2026-07-14 19:17:35 +02:00
parent f676651edb
commit 73917aca1e
3 changed files with 27 additions and 9 deletions
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web/templates/index.html
+6 -2
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@@ -318,6 +318,8 @@
<div class="mode-toggle" role="group" aria-label="Scale mapping">
<button type="button" class="mode-btn active" data-scale="linear"
title="Values spaced evenly along the scale">Linear</button>
<button type="button" class="mode-btn" data-scale="sqrt"
title="Square-root scale — ticks crowd at the low end; used for RMS current/power meters. Min must be ≥ 0">√</button>
<button type="button" class="mode-btn" data-scale="log"
title="Values spaced logarithmically — requires min and max greater than 0">Log</button>
</div>
@@ -433,11 +435,13 @@
}
if (btn.dataset.scale !== undefined) {
document.getElementById('scale-type').value = btn.dataset.scale;
const minInput = document.querySelector('input[name="min"]');
const maxInput = document.querySelector('input[name="max"]');
if (btn.dataset.scale === 'log') {
const minInput = document.querySelector('input[name="min"]');
const maxInput = document.querySelector('input[name="max"]');
if (!(parseFloat(minInput.value) > 0)) minInput.value = '1';
if (!(parseFloat(maxInput.value) > 0)) maxInput.value = '100';
} else if (btn.dataset.scale === 'sqrt') {
if (parseFloat(minInput.value) < 0) minInput.value = '0';
}
}
doGenerate();