Apply max scale constraint in zoomToGeometryOrExtent function

3liz · Oct 23, 2024 · 23f9a99 · 23f9a99
1 parent 36f95f1
commit 23f9a99
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diff --git a/assets/src/modules/config/Options.js b/assets/src/modules/config/Options.js
@@ -29,6 +29,8 @@ const optionalProperties = {
     'wmsMaxHeight': {type: 'number', default: 3000},
     'wmsMaxWidth': {type: 'number', default: 3000},
     'fixed_scale_overview_map': {type: 'boolean', default: true},
+    'max_scale_points': {type: 'number', default: 5000},
+    'max_scale_lines_polygons': {type: 'number', default: 5000},
     'use_native_zoom_levels': {type: 'boolean', nullable: true, default: null},
     'hide_numeric_scale_value': {type: 'boolean', default: false},
     'hideGroupCheckbox': { type: 'boolean', default: false },
@@ -62,6 +64,8 @@ export class OptionsConfig  extends BaseObjectConfig {
      * @param {number}   [cfg.wmsMaxHeight]                       - the image max height for WMS GetMap request
      * @param {number}   [cfg.wmsMaxWidth]                        - the image max width for WMS GetMap request
      * @param {boolean}  [cfg.fixed_scale_overview_map]           - does the Overview map have fixed scale ?
+     * @param {number}   [cfg.max_scale_points]                   - maximum scale when zooming on points
+     * @param {boolean}  [cfg.max_scale_lines_polygons]           - maximum scale when zooming on lines or polygons
      * @param {boolean}  [cfg.use_native_zoom_levels]             - does the map use native zoom levels ?
      * @param {boolean}  [cfg.hide_numeric_scale_value]           - does the scale line hide numeric scale value ?
      * @param {boolean}  [cfg.hideGroupCheckbox]                  - are groups checkbox hidden ?
@@ -207,6 +211,22 @@ export class OptionsConfig  extends BaseObjectConfig {
         return this._fixed_scale_overview_map;
     }
 
+    /**
+     * Maximum scale when zooming on points
+     * @type {boolean}
+     */
+    get max_scale_points() {
+        return this._max_scale_points;
+    }
+
+    /**
+     * Maximum scale when zooming on lines or polygons
+     * @type {boolean}
+     */
+    get max_scale_lines_polygons() {
+        return this._max_scale_lines_polygons;
+    }
+
     /**
      * The map uses native zoom levels
      * @type {boolean}

diff --git a/assets/src/modules/map.js b/assets/src/modules/map.js
@@ -1081,6 +1081,28 @@ export default class map extends olMap {
      * @param {object} [options] Options.
      */
     zoomToGeometryOrExtent(geometryOrExtent, options) {
+        // Apply max scale constraint
+        const geometryType = geometryOrExtent?.getType();
+        if (geometryType && (mainLizmap.initialConfig.options.max_scale_lines_polygons || mainLizmap.initialConfig.options.max_scale_lines_polygons)) {
+            let maxScale;
+            if (['Polygon', 'Linestring'].includes(geometryType)){
+                maxScale = mainLizmap.initialConfig.options.max_scale_lines_polygons;
+            } else if (geometryType === 'Point'){
+                maxScale = mainLizmap.initialConfig.options.max_scale_points;
+            }
+            const resolution = mainLizmap.utils.getResolutionFromScale(
+                maxScale,
+                mainLizmap.map.getView().getProjection().getMetersPerUnit()
+            );
+            if (!options?.minResolution) {
+                if (!options) {
+                    options = { minResolution: resolution };
+                } else {
+                    options.minResolution = resolution;
+                }
+            }
+        }
+
         this.getView().fit(geometryOrExtent, options);
     }
 }