Return Best Distance #61
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polylabel.js
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| @@ -73,7 +77,9 @@ function polylabel(polygon, precision, debug) { | |||
| console.log('best distance: ' + bestCell.d); | |||
| } | |||
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| return [bestCell.x, bestCell.y]; | |||
| var poleOfInaccessibility = [bestCell.x, bestCell.y]; | |||
| poleOfInaccessibility.distance = bestCell.d || 0; | |||
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Note: the || 0 here is intended to replace occurances of -0 with 0. This works because -0 is falsy. Open to suggestions for alternative approaches here - this just seemed the most straightforward and compact, but perhaps a sacrifice of readability.
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we could clarify this earlier in polylabel.js#L110:
return minDistSq && (inside ? 1 : -1) * Math.sqrt(minDistSq);
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Ah I see, maybe something like
return minDistSq ? (inside ? 1 : -1) * Math.sqrt(minDistSq): 0;
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Or maybe more explicit:
return minDistSq !== 0 ? (inside ? 1 : -1) * Math.sqrt(minDistSq) : 0;
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Or this variant might be most readable:
return minDistSq === 0 ? 0 : (inside ? 1 : -1) * Math.sqrt(minDistSq);
polylabel.js
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| @@ -73,7 +77,9 @@ function polylabel(polygon, precision, debug) { | |||
| console.log('best distance: ' + bestCell.d); | |||
| } | |||
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| return [bestCell.x, bestCell.y]; | |||
| var poleOfInaccessibility = [bestCell.x, bestCell.y]; | |||
| poleOfInaccessibility.distance = bestCell.d || 0; | |||
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we could clarify this earlier in polylabel.js#L110:
return minDistSq && (inside ? 1 : -1) * Math.sqrt(minDistSq);
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Thank you @Fil for reviewing! I've made one more commit to address your idea. Requesting re-review please. |
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Hooray!!! Thank you @mourner . |
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@mourner Might it be possible to cut a new NPM release with this change? Thank you. |
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Published as https://www.npmjs.com/package/@datavis-tech/polylabel for now. Will mark that as deprecated when a new version of this upstream package comes out. |
This was added to library in June 2020 -- see mapbox/polylabel#61
* Adding polylabel 'distance' return field This was added to library in June 2020 -- see mapbox/polylabel#61 * Updating version number as well * Whoops got confused between version number in two different forks of the lib
…Typed#65352) * Adding polylabel 'distance' return field This was added to library in June 2020 -- see mapbox/polylabel#61 * Updating version number as well * Whoops got confused between version number in two different forks of the lib
This PR is a proposed solution for #2.
A fresh take on #14.
Summary of changes:
distanceproperty to returned values.0, not-0, for degenerate cases.distance(never getsundefined).var, andObject.assignin tests instead of rest/spread).Kindly requesting review @mourner @Fil . Feedback welcome!
🙏