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Merge pull request #9723 from fredj/pass_param

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Pass the opt_direction value to the getConstrainedResolution function
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Frédéric Junod
2019-09-23 14:24:31 +02:00
committed by GitHub
parent 90d38b428c e780f2e3a3
commit 5630e278b9
1 changed files with 9 additions and 7 deletions
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src/ol/View.js
+9 -7
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@@ -1465,22 +1465,24 @@ class View extends BaseObject {
/** /**
* Get a valid zoom level according to the current view constraints. * Get a valid zoom level according to the current view constraints.
* @param {number|undefined} targetZoom Target zoom. * @param {number|undefined} targetZoom Target zoom.
* @param {number=} opt_direction Direction. Default is `0`. Specify `-1` or `1` to return * @param {number=} [opt_direction=0] Indicate which resolution should be used
* the available value respectively lower or greater than the target one. Leaving `0` will simply choose * by a renderer if the view resolution does not match any resolution of the tile source.
* the nearest available value. * If 0, the nearest resolution will be used. If 1, the nearest lower resolution
* will be used. If -1, the nearest higher resolution will be used.
* @return {number|undefined} Valid zoom level. * @return {number|undefined} Valid zoom level.
*/ */
getConstrainedZoom(targetZoom, opt_direction) { getConstrainedZoom(targetZoom, opt_direction) {
const targetRes = this.getResolutionForZoom(targetZoom); const targetRes = this.getResolutionForZoom(targetZoom);
return this.getZoomForResolution(this.getConstrainedResolution(targetRes)); return this.getZoomForResolution(this.getConstrainedResolution(targetRes, opt_direction));
} }
/** /**
* Get a valid resolution according to the current view constraints. * Get a valid resolution according to the current view constraints.
* @param {number|undefined} targetResolution Target resolution. * @param {number|undefined} targetResolution Target resolution.
* @param {number=} opt_direction Direction. Default is `0`. Specify `-1` or `1` to return * @param {number=} [opt_direction=0] Indicate which resolution should be used
* the available value respectively lower or greater than the target one. Leaving `0` will simply choose * by a renderer if the view resolution does not match any resolution of the tile source.
* the nearest available value. * If 0, the nearest resolution will be used. If 1, the nearest lower resolution
* will be used. If -1, the nearest higher resolution will be used.
* @return {number|undefined} Valid resolution. * @return {number|undefined} Valid resolution.
*/ */
getConstrainedResolution(targetResolution, opt_direction) { getConstrainedResolution(targetResolution, opt_direction) {