Overlap check documentation

src/analysis/vector/geometry_checker/qgsgeometryoverlapcheck.h

@@ -21,7 +21,12 @@
 #include "qgsgeometrycheck.h"
 #include "qgsgeometrycheckerror.h"
 
-
+/**
+ * \ingroup analysis
+ * An error of a QgsGeometryOverlapCheck.
+ *
+ * \since QGIS 3.4
+ */
 class ANALYSIS_EXPORT QgsGeometryOverlapCheckError : public QgsGeometryCheckError
 {
   public:
@@ -46,12 +51,22 @@ class ANALYSIS_EXPORT QgsGeometryOverlapCheckError : public QgsGeometryCheckErro
         QgsFeatureId mFeatureId;
     };
 
+    /**
+     * Creates a new overlap check error for \a check and the \a layerFeature combination.
+     * The \a geometry and \a errorLocation ned to be in map coordinates.
+     * The \a value is the area of the overlapping area in map units.
+     * The \a overlappedFeature provides more details about the overlap.
+     */
     QgsGeometryOverlapCheckError( const QgsGeometryCheck *check,
                                   const QgsGeometryCheckerUtils::LayerFeature &layerFeature,
                                   const QgsGeometry &geometry,
                                   const QgsPointXY &errorLocation,
                                   const QVariant &value,
                                   const QgsGeometryCheckerUtils::LayerFeature &overlappedFeature );
+
+    /**
+     * Returns the overlapped feature
+     */
     const OverlappedFeature &overlappedFeature() const { return mOverlappedFeature; }
 
     bool isEqual( QgsGeometryCheckError *other ) const override
@@ -90,11 +105,24 @@ class ANALYSIS_EXPORT QgsGeometryOverlapCheckError : public QgsGeometryCheckErro
     OverlappedFeature mOverlappedFeature;
 };
 
+/**
+ * \ingroup analysis
+ * Checks if geometries overlap.
+ *
+ * \since QGIS 3.4
+ */
 class ANALYSIS_EXPORT QgsGeometryOverlapCheck : public QgsGeometryCheck
 {
   public:
 
-    enum ResolutionMethod { Subtract, NoChange };
+    /**
+     * Available resolution methods.
+     */
+    enum ResolutionMethod
+    {
+      Subtract, //!< Subtract the overlap region from the polygon
+      NoChange //!< Do not change anything
+    };
 
     /**
      * Checks for overlapping polygons.