openlayers
Version:
Build tools and sources for developing OpenLayers based mapping applications
36 lines (30 loc) • 794 B
JavaScript
goog.provide('ol.CenterConstraint');
goog.require('ol.math');
/**
* @param {ol.Extent} extent Extent.
* @return {ol.CenterConstraintType} The constraint.
*/
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;
};