Syntax
Z/M values are supported for Point, PLine, region, multipoint, and collection objects
only.
Alter Object obj
{ Info object_info_code, new_info_value |
Geography object_geo_code , new_geo_value |
Node {
Add [ Position polygon_num, node_num ] ( x, y[, [z][,m]] ) |
Set Position polygon_num, node_num ( [x],[ y][, [z][,m) |
Remove Position polygon_num, node_num } }
Note: You are not required to pass x,y if only z or m need to be modified.