more help improvements

resources/function_help/json/area

@@ -9,7 +9,7 @@
   }],
   "examples": [{
     "expression": "area(@geometry)",
-    "returns": "current geometry area"
+    "returns": "area of the current feature's geometry"
   },{
     "expression": "area(geom_from_wkt('POLYGON((0 0, 4 0, 4 2, 0 2, 0 0))'))",
     "returns": "8.0"

resources/function_help/json/boundary

@@ -8,6 +8,9 @@
     "description": "a geometry"
   }],
   "examples": [{
+    "expression": "boundary(@geometry)",
+    "returns": "boundary of the current feature's geometry"
+  },{
     "expression": "geom_to_wkt(boundary(geom_from_wkt('Polygon((1 1, 0 0, -1 1, 1 1))')))",
     "returns": "'LineString(1 1,0 0,-1 1,1 1)'"
   }, {
@@ -16,3 +19,4 @@
   }],
   "tags": ["polygon", "linestrings", "instance", "combinatorial", "topological", "points", "collections", "types", "ring", "boundary", "closure"]
 }
+

resources/function_help/json/convex_hull

@@ -8,6 +8,9 @@
     "description": "a geometry"
   }],
   "examples": [{
+    "expression": "convex_hull(@geometry)",
+    "returns": "convex hull of the current feature's geometry"
+  },{
     "expression": "geom_to_wkt( convex_hull( geom_from_wkt( 'LINESTRING(3 3, 4 4, 4 10)' ) ) )",
     "returns": "'POLYGON((3 3, 4 10, 4 4, 3 3))'"
   }],

resources/function_help/json/end_point

@@ -8,6 +8,9 @@
     "description": "geometry object"
   }],
   "examples": [{
+    "expression": "end_point(@geometry)",
+    "returns": "end point of the current feature's geometry"
+  },{
     "expression": "geom_to_wkt(end_point(geom_from_wkt('LINESTRING(4 0, 4 2, 0 2)')))",
     "returns": "'Point (0 2)'"
   }],

resources/function_help/json/geom_to_wkb

@@ -9,7 +9,7 @@
   }],
   "examples": [{
     "expression": "geom_to_wkb( @geometry )",
-    "returns": "binary blob containing a geometry object"
+    "returns": "binary blob of the current feature's geometry"
   }],
   "tags": ["wkb", "binary", "representation", "known", "conversion"]
 }

resources/function_help/json/geom_to_wkt

@@ -13,6 +13,9 @@
     "default": "8"
   }],
   "examples": [{
+    "expression": "geom_to_wkt(@geometry)",
+    "returns": "well-known text representation of the current feature's geometry"
+  },{
     "expression": "geom_to_wkt( make_point(6, 50) )",
     "returns": "'POINT(6 50)'"
   }, {

resources/function_help/json/is_multipart

@@ -8,6 +8,9 @@
     "description": "a geometry"
   }],
   "examples": [{
+    "expression": "is_multipart(@geometry)",
+    "returns": "checks if the current feature's geometry is multipart"
+  },{
     "expression": "is_multipart(geom_from_wkt('MULTIPOINT ((0 0),(1 1),(2 2))'))",
     "returns": "TRUE"
   }, {

resources/function_help/json/is_valid

@@ -8,6 +8,9 @@
     "description": "a geometry"
   }],
   "examples": [{
+    "expression": "is_valid(@geometry)",
+    "returns": "checks if the current feature's geometry is valid"
+  },{
     "expression": "is_valid(geom_from_wkt('LINESTRING(0 0, 1 1, 2 2, 0 0)'))",
     "returns": "TRUE"
   }, {

resources/function_help/json/length

@@ -22,6 +22,9 @@
       "description": "line geometry object"
     }],
     "examples": [{
+      "expression": "length(@geometry)",
+      "returns": "length of the current feature's geometry"
+    },{
       "expression": "length(geom_from_wkt('LINESTRING(0 0, 4 0)'))",
       "returns": "4.0"
     }]

resources/function_help/json/length3D

@@ -8,6 +8,9 @@
     "description": "line geometry object"
   }],
   "examples": [{
+      "expression": "length3D(@geometry)",
+      "returns": "3D length of the current feature's geometry"
+    },{
     "expression": "length3D(geom_from_wkt('LINESTRINGZ(0 0 0, 3 0 4)'))",
     "returns": "5.0"
   }],

resources/function_help/json/perimeter

@@ -8,6 +8,9 @@
     "description": "polygon geometry object"
   }],
   "examples": [{
+    "expression": "perimeter(@geometry)",
+    "returns": "perimeter of the current feature's geometry"
+  },{
     "expression": "perimeter(geom_from_wkt('POLYGON((0 0, 4 0, 4 2, 0 2, 0 0))'))",
     "returns": "12.0"
   }],

resources/function_help/json/x_max

@@ -8,8 +8,11 @@
     "description": "a geometry"
   }],
   "examples": [{
+    "expression": "x_max(@geometry)",
+    "returns": "the maximum x coordinate of the current feature's geometry"
+    },{
     "expression": "x_max( geom_from_wkt( 'LINESTRING(2 5, 3 6, 4 8)') )",
     "returns": "4"
   }],
-  "tags": ["coordinate", "spatial", "reference", "calculations", "system", "maximum"]
+  "tags": ["coordinate", "spatial", "reference", "calculations", "system", "maximum", "east"]
 }

resources/function_help/json/x_min

@@ -8,8 +8,11 @@
     "description": "a geometry"
   }],
   "examples": [{
+    "expression": "x_min(@geometry)",
+    "returns": "the minimum x coordinate of the current feature's geometry"
+    },{
     "expression": "x_min( geom_from_wkt( 'LINESTRING(2 5, 3 6, 4 8)') )",
     "returns": "2"
   }],
-  "tags": ["coordinate", "spatial", "reference", "calculations", "system", "minimum"]
+  "tags": ["coordinate", "spatial", "reference", "calculations", "system", "minimum", "west"]
 }

resources/function_help/json/y_max

@@ -8,8 +8,11 @@
     "description": "a geometry"
   }],
   "examples": [{
+    "expression": "y_max(@geometry)",
+    "returns": "the maximum y coordinate of the current feature's geometry"
+    },{
     "expression": "y_max( geom_from_wkt( 'LINESTRING(2 5, 3 6, 4 8)') )",
     "returns": "8"
   }],
-  "tags": ["coordinate", "spatial", "reference", "calculations", "system", "maximum"]
+  "tags": ["coordinate", "spatial", "reference", "calculations", "system", "maximum", "north"]
 }

resources/function_help/json/y_min

@@ -8,8 +8,11 @@
     "description": "a geometry"
   }],
   "examples": [{
+    "expression": "y_min(@geometry)",
+    "returns": "the minimum y coordinate of the current feature's geometry"
+    },{
     "expression": "y_min( geom_from_wkt( 'LINESTRING(2 5, 3 6, 4 8)') )",
     "returns": "5"
   }],
-  "tags": ["coordinate", "spatial", "reference", "calculations", "system", "minimum"]
+  "tags": ["coordinate", "spatial", "reference", "calculations", "system", "minimum", "south"]
 }