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add function $z for expression (#44776)
[feature] [expression] add function $z for expression
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{ | ||
"name": "$z", | ||
"type": "function", | ||
"groups": ["GeometryGroup"], | ||
"description": "Returns the z value of the current point feature if it is 3D. If the feature is a multipoint feature, then the z value of the first point will be returned.", | ||
"examples": [ { "expression":"$z", "returns":"123"} | ||
] | ||
} |
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