25 lines
1.0 KiB
HTML
25 lines
1.0 KiB
HTML
---
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layout: example.html
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title: Hit Tolerance
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shortdesc: Example using the hitTolerance parameter.
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docs: >
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By default, the map.forEachFeatureAtPixel() function only considers features that are directly under the provided
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pixel. This can make it difficult to interact with features on touch devices. To consider features within some
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distance of the provided pixel, use the hitTolerance option. For example,
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map.forEachFeatureAtPixel(pixel, callback, {hitTolerance: 3}) will call the callback with all features that are
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within three pixels of the provided pixel.
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tags: "hitTolerance"
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---
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<div id="map" class="map"></div>
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<span id="status">Try to click the line in the map.</span>
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<form>
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<label for="hitTolerance">Hit tolerance for selecting features: </label>
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<select id="hitTolerance">
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<option value="0" selected>0 Pixels</option>
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<option value="5">5 Pixels</option>
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<option value="10">10 Pixels</option>
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</select>
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Area:
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<canvas id="circle" style="vertical-align: middle"></canvas>
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</form>
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