44 lines
981 B
JavaScript
44 lines
981 B
JavaScript
goog.provide('ol.CenterConstraint');
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goog.provide('ol.CenterConstraintType');
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goog.require('goog.math');
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/**
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* @typedef {function((ol.Coordinate|undefined)): (ol.Coordinate|undefined)}
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* @todo stability experimental
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*/
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ol.CenterConstraintType;
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/**
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* @param {ol.Extent} extent Extent.
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* @return {ol.CenterConstraintType}
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*/
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ol.CenterConstraint.createExtent = function(extent) {
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return (
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/**
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* @param {ol.Coordinate|undefined} center Center.
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* @return {ol.Coordinate|undefined} Center.
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*/
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function(center) {
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if (goog.isDef(center)) {
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return [
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goog.math.clamp(center[0], extent[0], extent[2]),
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goog.math.clamp(center[1], extent[1], extent[3])
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];
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} else {
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return undefined;
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}
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});
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};
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/**
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* @param {ol.Coordinate|undefined} center Center.
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* @return {ol.Coordinate|undefined} Center.
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*/
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ol.CenterConstraint.none = function(center) {
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return center;
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};
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