Click tolerence per layer

contribs/gmf/src/datasource/Manager.js

@@ -641,6 +641,7 @@ export class DatasourceManager {
     const copyable = meta.copyable;
     const identifierAttribute = meta.identifierAttributeField;
     const name = gmfLayer.name;
+    const queryIconPosition = meta.queryIconPosition;
     const timeAttributeName = meta.timeAttribute;
     const visible = meta.isChecked === true;
     const ogcAttributes = ogcServer ? ogcServer.attributes : null;
@@ -656,6 +657,7 @@ export class DatasourceManager {
       name,
       ogcType,
       ogcAttributes,
+      queryIconPosition,
       snappable,
       timeAttributeName,
       visible,
@@ -673,18 +675,9 @@ export class DatasourceManager {
     if (ogcImageType) {
       options.ogcImageType = ogcImageType;
     }
-    if (wmsLayers) {
-      options.wmsLayers = wmsLayers;
-    }
-    if (wfsLayers) {
-      options.wfsLayers = wfsLayers;
-    }
     if (ogcServerType) {
       options.ogcServerType = ogcServerType;
     }
-    if (wfsFeatureNS) {
-      options.wfsFeatureNS = wfsFeatureNS;
-    }
     if (snappingTolerance) {
       options.snappingTolerance = snappingTolerance;
     }
@@ -703,12 +696,21 @@ export class DatasourceManager {
     if (timeUpperValue) {
       options.timeUpperValue = timeUpperValue;
     }
+    if (wfsFeatureNS) {
+      options.wfsFeatureNS = wfsFeatureNS;
+    }
+    if (wfsLayers) {
+      options.wfsLayers = wfsLayers;
+    }
     if (wfsUrl) {
       options.wfsUrl = wfsUrl;
     }
     if (wmsIsSingleTile) {
       options.wmsIsSingleTile = wmsIsSingleTile;
     }
+    if (wmsLayers) {
+      options.wmsLayers = wmsLayers;
+    }
     if (wmsUrl) {
       options.wmsUrl = wmsUrl;
     }

contribs/gmf/src/datasource/OGC.js

@@ -55,6 +55,9 @@ import ngeoDatasourceOGC from 'ngeo/datasource/OGC.js';
  * @property {string} [ogcType] The type data source. Can be: 'WMS' or 'WMTS'.
  * @property {?Object<string, Object<string, import('gmf/themes.js').GmfOgcServerAttribute>>} [ogcAttributes]
  *    The attributes of the OGC server.
+ * @property {number[]} [queryIconPosition] values to define the shape (bbox) to use to query
+ *    the layer. The values are used like a padding in css with 1, 2, 3 or 4 comma separated
+ *    values: all / top-bottom, left-right / top, right-left, bottom / top, right, bottom, left.
  * @property {boolean} [snappable] Whether the geometry from this data source can be used to snap the geometry
  *    of features from other data sources that are being edited. Defaults to `false`.
  * @property {boolean} [snappingToEdges] Determines whether external features can be snapped to the edges of

contribs/gmf/src/themes.js

@@ -234,6 +234,9 @@
  * @property {number} [minQueryResolution] The min resolution where the layer is queryable. For WMTS layers.
  * @property {number} [minResolution] The min resolution where the layer is visible. For WMS layers.
  *      On WMTS layers it will have an effect on the node in the layertree but not on the layer directly.
+ * @property {number[]} [queryIconPosition] values to define the shape (bbox) to use to query
+ *      the layer. The values are used like a padding in css with 1, 2, 3 or 4 comma separated
+ *      values: all / top-bottom, left-right / top, right-left, bottom / top, right, bottom, left.
  * @property {string} [ogcServer] The corresponding OGC server for a WMTS layer. For WMTS layers.
  * @property {number} [opacity=1.0] Layer opacity. 1.0 means fully visible, 0 means invisible, For WMS and
  *      WMTS layers.

package.json

@@ -124,7 +124,7 @@
     "moment": "2.29.1",
     "node-sass": "4.14.1",
     "node-sass-importer": "1.0.0",
-    "ol": "6.4.3",
+    "ol": "6.4.4-dev.1606258895715",
     "ol-cesium": "2.11.3",
     "ol-layerswitcher": "3.8.1",
     "parse-absolute-css-unit": "1.0.2",

src/datasource/OGC.js

@@ -122,6 +122,9 @@ export const WMSInfoFormat = {
  * @property {string} [ogcType] The type data source. Can be: 'WMS' or 'WMTS'.
  * @property {?Object<string, Object<string, import('gmf/themes.js').GmfOgcServerAttribute>>} [ogcAttributes]
  *    The attributes of the OGC server.
+ * @property {number[]} [queryIconPosition] values to define the shape (bbox) to use to query
+ *    the layer. The values are used like a padding in css with 1, 2, 3 or 4 comma separated
+ *    values: all / top-bottom, left-right / top, right-left, bottom / top, right, bottom, left.
  * @property {boolean} [snappable] Whether the geometry from this data source can be used to snap the geometry
  *    of features from other data sources that are being edited. Defaults to `false`.
  * @property {boolean} [snappingToEdges] Determines whether external features can be snapped to the edges of
@@ -339,6 +342,14 @@ export class OGC extends ngeoDatasourceDataSource {
      */
     this.ogcAttributes_ = options.ogcAttributes;
 
+    /**
+     * Values to define the shape (bbox) to use to query the layer. The values work like a css
+     * padding.
+     * @type {number[]}
+     * @private
+     */
+    this.queryIconPosition_ = options.queryIconPosition;
+
     /**
      * Whether the geometry from this data source can be used to snap the
      * geometry of features from other data sources that are being edited.
@@ -678,6 +689,13 @@ export class OGC extends ngeoDatasourceDataSource {
     return this.ogcType_;
   }
 
+  /**
+   * @return {number[]} The queryIconPosition
+   */
+  get queryIconPosition() {
+    return this.queryIconPosition_;
+  }
+
   /**
    * @return {boolean} Snappable
    */

src/filter/RuleHelper.js

@@ -468,9 +468,10 @@ export class RuleHelper {
    */
   createFilterString(options) {
     let filterString = null;
+    const defaultWFSVersion = '1.1.0';
     const filter = this.createFilter(options);
     if (filter) {
-      const filterNode = writeFilter(filter);
+      const filterNode = writeFilter(filter, defaultWFSVersion);
       const xmlSerializer = new XMLSerializer();
       filterString = xmlSerializer.serializeToString(filterNode);
     }

src/options.js

@@ -179,8 +179,8 @@ export function buildStyle(styleDescriptor) {
  *    Use this if you have more than one source bound to a layer.
  * @property {number} [tolerance=3] When issuing an identify feature request at a click position, either a
  *    WMS GetFeatureInfo or a WFS GetFeature request will be used. For GetFeature requests a bbox is built
- *    around the position. This `tolerance` in pixel determines the size of the bbox.
- * @property {number} [toleranceTouch=10] The tolerance on touch devices.
+ *    around the position. This `tolerance` in pixel determines the minimal size of the bbox.
+ * @property {number} [toleranceTouch=10] Same as `tolerance` but for touch devices.
  * @property {string} [featureNS='http://mapserver.gis.umn.edu/mapserver'] The feature namespace for WFS
  *    GetFeature requests.
  * @property {string} [featurePrefix='feature'] The feature prefix for WFS GetFeature requests.

src/query/MapQuerent.js

@@ -119,12 +119,12 @@ export class MapQuerent {
      * @type {number}
      * @private
      */
-    this.tolerancePx_;
+    this.tolerance_;
 
     if (hasCoarsePointingDevice()) {
-      this.tolerancePx_ = options.toleranceTouch !== undefined ? options.toleranceTouch : 10;
+      this.tolerance_ = options.toleranceTouch !== undefined ? options.toleranceTouch : 10;
     } else {
-      this.tolerancePx_ = options.tolerance !== undefined ? options.tolerance : 3;
+      this.tolerance_ = options.tolerance !== undefined ? options.tolerance : 3;
     }
 
     /**
@@ -173,7 +173,7 @@ export class MapQuerent {
     Object.assign(options, {
       queryableDataSources: queryableDataSources,
       limit: limit,
-      tolerancePx: this.tolerancePx_,
+      tolerance: this.tolerance_,
       wfsCount: this.queryCountFirst_,
       bboxAsGETParam: this.bboxAsGETParam_,
     });

src/query/Querent.js

@@ -67,8 +67,6 @@ import olSourceImageWMS from 'ol/source/ImageWMS.js';
  *    - `replace`: newly queried features are used as result
  *    - `add`:     newly queried features are added to the existing ones
  *    - `remove`:  newly queried features are removed from the existing ones
- * @property {import("ol/extent.js").Extent} [bbox] The bbox to issue the requests with,
- *    which will end up with a WFS request.
  * @property {import("ol/coordinate.js").Coordinate} [coordinate] The coordinate to issue the requests with,
  *    which can end up with either WMS or WFS requests.
  * @property {Array<import('ngeo/datasource/DataSource.js').default>} [dataSources] list of data sources to
@@ -87,9 +85,8 @@ import olSourceImageWMS from 'ol/source/ImageWMS.js';
  * @property {QueryableDataSources} [queryableDataSources] A hash of queryable data sources, which must meet
  *    all requirements. The querent service requires either the `dataSources` or `queryableDataSources`
  *    property to be set.
- *
- * @property {number} [tolerancePx] A tolerance value in pixels used to create an extent from a coordinate
- *    to issue WFS requests.
+ * @property {number} [tolerance] A minimal buffer value in pixels to ensure a minimal bbox around a
+ *    coordinate to issue WFS requests.
  * @property {boolean} [wfsCount] When set, before making WFS GetFeature requests to fetch features,
  *    WFS GetFeature requests with `resultType = 'hits'` are made first. If
  *    the number of records for the request would exceed the limit, then
@@ -564,25 +561,28 @@ export class Querent {
     }
 
     // (1) Extent (bbox), which is optional, i.e. its value can stay undefined
+    /** @type {import("ol/extent.js").Extent} */
     let bbox;
     const coordinate = options.coordinate;
     if (coordinate) {
-      const tolerancePx = options.tolerancePx;
-      console.assert(tolerancePx);
-      const tolerance = tolerancePx * resolution;
-      bbox = olExtent.buffer(olExtent.createOrUpdateFromCoordinate(coordinate), tolerance);
+      const tolerance = options.tolerance;
+      console.assert(tolerance);
+      bbox = olExtent.buffer(olExtent.createOrUpdateFromCoordinate(coordinate), tolerance * resolution);
     } else {
       bbox = options.extent;
     }
 
     // (2) Launch one request per combinaison of data sources
     const wfsFormat = new olFormatWFS();
     const xmlSerializer = new XMLSerializer();
+    let hasAtLeastOneQueryIconPosition = false;
     for (const dataSources of combinedDataSources) {
       /** @type {?import('ol/format/WFS.js').WriteGetFeatureOptions} */
       let getFeatureCommonOptions = null;
       /** @type {string[]} */
-      let featureTypes = [];
+      let featureTypesNames = [];
+      /** @type {import('ol/format/WFS.js').FeatureType[]} */
+      const featureTypesObjects = [];
       /** @type {?string} */
       let url = null;
       /** @type {Object<string, string>} */
@@ -594,13 +594,13 @@ export class Querent {
 
       // (3) Build query options
       for (const dataSource of dataSources) {
-        const currentFeatureTypes = dataSource.getInRangeWFSLayerNames(resolution, true);
+        const currentFeatureTypesNames = dataSource.getInRangeWFSLayerNames(resolution, true);
+        const geometryName = dataSource.geometryName(currentFeatureTypesNames[0]);
 
         // (a) Create common options, if not done yet
         if (!getFeatureCommonOptions) {
           const featureNS = dataSource.wfsFeatureNS;
           const featurePrefix = dataSource.wfsFeaturePrefix;
-          const geometryName = dataSource.geometryName(currentFeatureTypes[0]);
           const outputFormat = dataSource.wfsOutputFormat;
           if (!geometryName) {
             throw new Error('Missing geometryName');
@@ -622,8 +622,8 @@ export class Querent {
           Object.assign(params, dataSource.activeDimensions);
         }
 
-        // (b) Add queryable layer names in featureTypes array
-        featureTypes = featureTypes.concat(currentFeatureTypes);
+        // (b) Add queryable layer names in featureTypesNames array
+        featureTypesNames = featureTypesNames.concat(currentFeatureTypesNames);
 
         // (c) Add filter, if any. If the case, then only one data source
         //     is expected to be used for this request.
@@ -659,23 +659,52 @@ export class Querent {
         // create and add a spatial filter it to the existing filter
         // as well.
         if (options.geometry) {
-          const spatialFilter = olFormatFilter.intersects(
-            dataSource.geometryName(),
-            options.geometry,
-            srsName
-          );
+          const spatialFilter = olFormatFilter.intersects(geometryName, options.geometry, srsName);
           filter = this.ngeoRuleHelper_.joinFilters(filter, spatialFilter);
         }
 
         if (filter) {
           getFeatureCommonOptions.filter = filter;
         }
+
+        // (e) For coordinate (click) query, and if at least one dataSource has a
+        // queryIconPosition, define featureTypes as Object to use a custom bbox per layer.
+        if (coordinate) {
+          /** @type {import("ol/extent.js").Extent} */
+          let queryIconPosition;
+          if (dataSource.queryIconPosition) {
+            hasAtLeastOneQueryIconPosition = true;
+            queryIconPosition = this.makeBboxWithQueryIconPosition_(
+              dataSource.queryIconPosition,
+              resolution,
+              coordinate
+            );
+            console.assert(queryIconPosition !== null, 'Bad queryIconPosition values');
+            // Be sure it respects a minimal bbox.
+            queryIconPosition = olExtent.extend(queryIconPosition, bbox);
+          }
+          currentFeatureTypesNames.forEach((name) => {
+            featureTypesObjects.push({
+              geometryName,
+              name,
+              bbox: queryIconPosition || bbox,
+            });
+          });
+        }
       }
+
       if (!getFeatureCommonOptions) {
         throw new Error('Missing getFeatureCommonOptions');
       }
 
-      getFeatureCommonOptions.featureTypes = featureTypes;
+      if (hasAtLeastOneQueryIconPosition) {
+        getFeatureCommonOptions.featureTypes = featureTypesObjects;
+        // If featureTypes is set with FeatureType objects then bbox and geometryName is
+        // not used. Delete them for clarity.
+        delete getFeatureCommonOptions.bbox;
+        delete getFeatureCommonOptions.geometryName;
+      }
+
       if (!url) {
         throw new Error('Missing url');
       }
@@ -771,6 +800,44 @@ export class Querent {
     return this.q_.all(promises).then(handleCombinedQueryResult_);
   }
 
+  /**
+   * Create and add a buffer around the given coordinate.
+   * The buffer is built with the flipped (horizontally and vertically) values of the queryIconPosition.
+   * @param {!number[]} queryIconPosition The values in px to buffer the bbox (1 to 4 values, css system).
+   * @param {!number} resolution The map view resolution to define the px size correctly.
+   * @param {!import("ol/coordinate.js").Coordinate} coordinate The bbox to buffer.
+   * @return {!import("ol/extent.js").Extent} The new bbox or null if the queryIconPosition param
+   * is not valid.
+   * @private
+   */
+  makeBboxWithQueryIconPosition_(queryIconPosition, resolution, coordinate) {
+    const bbox = olExtent.createOrUpdateFromCoordinate(coordinate);
+    const buffers = queryIconPosition.map((value) => value * resolution);
+    const length = buffers.length;
+    if (!length || length > 4) {
+      return null;
+    }
+    if (length === 1) {
+      // Same buffer all around.
+      return olExtent.buffer(bbox, buffers[0]);
+    }
+    const fourValuesBuffers = [
+      buffers[0], // Top is always set.
+      buffers[1], // Right is always set (with length > 1).
+      length === 2 ? buffers[0] : buffers[2], // Take bottom.
+      length === 4 ? buffers[3] : buffers[1], // Take left.
+    ];
+    // To includes the feature's point into the queried zone relative to the click. Flip vertically and
+    // horizontally the queryIconPosition (that is relative to the icon).
+    // Ol extent coordinate order is [left, bottom, right, top].
+    return [
+      bbox[0] - fourValuesBuffers[1], // Use right buffer for left.
+      bbox[1] - fourValuesBuffers[0], // Use top buffer for bottom.
+      bbox[2] + fourValuesBuffers[3], // Use left buffer for right.
+      bbox[3] + fourValuesBuffers[2], // Use bottom buffer for top.
+    ];
+  }
+
   /**
    * Issue WMS GetFeatureInfo requests using the given combined data sources,
    * map and optional filters.

test/spec/all.js

@@ -43,6 +43,7 @@ import './services/location.spec.js';
 import './services/printutils.spec.js';
 import './services/autoprojection.spec.js';
 import './services/debounce.spec.js';
+import './services/querent.spec.js';
 import './ol-ext/format/featurehash.spec.js';
 import './directives/filereader.spec.js';
 import './directives/scaleselector.spec.js';