26 lines
784 B
JavaScript
26 lines
784 B
JavaScript
goog.provide('ol.geom.flat.center');
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goog.require('ol.extent');
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/**
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* @param {Array.<number>} flatCoordinates Flat coordinates.
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* @param {number} offset Offset.
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* @param {Array.<Array.<number>>} endss Endss.
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* @param {number} stride Stride.
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* @return {Array.<number>} Flat centers.
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*/
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ol.geom.flat.center.linearRingss = function(flatCoordinates, offset, endss, stride) {
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var flatCenters = [];
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var i, ii;
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var extent = ol.extent.createEmpty();
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for (i = 0, ii = endss.length; i < ii; ++i) {
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var ends = endss[i];
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extent = ol.extent.createOrUpdateFromFlatCoordinates(
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flatCoordinates, offset, ends[0], stride);
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flatCenters.push((extent[0] + extent[2]) / 2, (extent[1] + extent[3]) / 2);
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offset = ends[ends.length - 1];
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}
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return flatCenters;
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};
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