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