94 lines
2.7 KiB
JavaScript
94 lines
2.7 KiB
JavaScript
goog.provide('ol.geom.flat.deflate');
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goog.require('goog.asserts');
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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 {ol.Coordinate} coordinate Coordinate.
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* @param {number} stride Stride.
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* @return {number} offset Offset.
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*/
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ol.geom.flat.deflate.coordinate =
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function(flatCoordinates, offset, coordinate, stride) {
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goog.asserts.assert(coordinate.length == stride,
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'length of the coordinate array should match stride');
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var i, ii;
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for (i = 0, ii = coordinate.length; i < ii; ++i) {
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flatCoordinates[offset++] = coordinate[i];
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}
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return offset;
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};
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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.<ol.Coordinate>} coordinates Coordinates.
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* @param {number} stride Stride.
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* @return {number} offset Offset.
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*/
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ol.geom.flat.deflate.coordinates =
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function(flatCoordinates, offset, coordinates, stride) {
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var i, ii;
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for (i = 0, ii = coordinates.length; i < ii; ++i) {
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var coordinate = coordinates[i];
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goog.asserts.assert(coordinate.length == stride,
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'length of coordinate array should match stride');
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var j;
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for (j = 0; j < stride; ++j) {
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flatCoordinates[offset++] = coordinate[j];
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}
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}
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return offset;
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};
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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.<ol.Coordinate>>} coordinatess Coordinatess.
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* @param {number} stride Stride.
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* @param {Array.<number>=} opt_ends Ends.
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* @return {Array.<number>} Ends.
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*/
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ol.geom.flat.deflate.coordinatess =
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function(flatCoordinates, offset, coordinatess, stride, opt_ends) {
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var ends = opt_ends ? opt_ends : [];
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var i = 0;
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var j, jj;
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for (j = 0, jj = coordinatess.length; j < jj; ++j) {
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var end = ol.geom.flat.deflate.coordinates(
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flatCoordinates, offset, coordinatess[j], stride);
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ends[i++] = end;
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offset = end;
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}
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ends.length = i;
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return ends;
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};
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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.<Array.<ol.Coordinate>>>} coordinatesss Coordinatesss.
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* @param {number} stride Stride.
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* @param {Array.<Array.<number>>=} opt_endss Endss.
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* @return {Array.<Array.<number>>} Endss.
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*/
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ol.geom.flat.deflate.coordinatesss =
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function(flatCoordinates, offset, coordinatesss, stride, opt_endss) {
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var endss = opt_endss ? opt_endss : [];
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var i = 0;
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var j, jj;
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for (j = 0, jj = coordinatesss.length; j < jj; ++j) {
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var ends = ol.geom.flat.deflate.coordinatess(
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flatCoordinates, offset, coordinatesss[j], stride, endss[i]);
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endss[i++] = ends;
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offset = ends[ends.length - 1];
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}
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endss.length = i;
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return endss;
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};
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