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--- create_elevation_graph [2026/08/17 19:15]
hermann
+++ create_elevation_graph [2026/08/28 03:14] (current)
hermann Sync from local documentation review
@@ Line 1: / Line 1: @@
 ====== Create Elevation Graph ======
 ===== Description =====
-This functor creates the elevation patch graph from neighborhood information and their properties.
+This functor creates the elevation patch graph from neighborhood information and patch properties.
 ===== Inputs =====
 ^ Name  ^ Type  ^ Description  ^
-| Neighborhood Table | [[Neighborhood Table Type]]  | Defines spatial connectivity between elevation patches. Elevation patches are represented by their corresponding ids.  |
+| Neighborhood Table  | [[Neighborhood Table Type]]  | Defines spatial connectivity between elevation patches. Elevation patches are represented by their corresponding ids.  |
-| Properties | [[Table Type]]  | Elevation patch properties table. The table has the format "Patch_Id*:real, Patch_Elevation:real, Patch_Area:real, Patch_Slope:real, Patch_Y:real, Patch_X:real". The "Patch_Y" and "Patch_X" values typically represent the coordinates of the patch centroids.  |
+| Properties  | [[Table Type]]  | Table of elevation patch properties, in the format "Patch_Id*:real, Patch_Elevation:real, Patch_Area:real, Patch_Slope:real, Patch_Y:real, Patch_X:real". Patch_Y and Patch_X typically hold the coordinates of each patch's centroid. Neighboring patches, per Neighborhood Table, must have different elevation values in Properties, or this functor reports an error.  |
 ===== Optional Inputs =====
 None.
-===== Output =====
+===== Outputs =====
 ^ Name  ^ Type  ^ Description  ^
-| Elevation Graph | [[Elevation Graph Type]]  | Elevation patch graph created from neighborhood relationships and their properties.  |
+| Elevation Graph  | [[Elevation Graph Type]]  | Elevation patch graph created from the neighborhood relationships and their properties.  |
 ===== Group =====
 [[Functor List#Elevation Graph | Elevation Graph]]
 ===== Notes =====
-The elevation patch graph is a directed graph whose nodes correspond to the patches defined in the neighborhood table, typically constructed from a terrain map. The edges between nodes represent the adjacency relationships and elevation differences between each patch and its neighbors. The parent nodes of a given node correspond to neighbors with higher elevation, while child nodes correspond to neighbors with lower elevation.
-Neighboring patches according to the neighborhood relationship must have different elevation values according to the table provided in "Properties". Otherwise, an error will be reported.
+The elevation patch graph is a directed graph whose nodes correspond to the patches defined in Neighborhood Table, typically built from a terrain map. Its edges represent the adjacency and elevation-difference relationships between each patch and its neighbors: a node's parent nodes are its higher-elevation neighbors, and its child nodes are its lower-elevation neighbors. Neighboring patches must have different elevation values according to Properties, or this functor reports an error.
 ===== Internal Name =====
 CreateElevationGraph