dg:AsIs feature types: mudanças entre as edições

dg:AsIs feature types (ver código-fonte)

1 312 bytes adicionados , 29 de setembro de 2023

Adiciona descrição sobre error mask.

198

edições

@@ Linha 253: / Linha 253: @@
 | block || nsref || identificador do bairro. ||  ||  ||
 |}
+== Error mask ==
+The sequence of bits of an item indicating errors is as follows:
+`error_mask=0000000000000`
+From right to left, a bit equal to 1 means:
+* Item is found outside the expected jurisdiction boundaries;
+* Item does not have valid geometry. For example, it is expected that a building be represented by a closed geometry, _i.e._ a polygon;
+* Item does not have simple geometry. Aiming to a broader support, our standard requires that features must not be composite objects, for example, streets as `MultiLinestrings`;
+* Item has empty geometry. That means the dataset contains one or more geometries without geographic coordinates assigned to it; (please confirm)
+* Item has area or length less than 5 or 2, respectively;
+* Item has zero geometry. That means the dataset contains one or more features without geometry assigned to it; (please confirm);
+* Item has geometry with a different type than that established for the layer in `feature_type`;
+* Duplicate item. Two items are duplicated if their geohashes of length 9 are the same;
+* Item with non-closed geometry when expected, _e.g._ polygons;
+* Item with very large geometry. Currently, if area or length exceeds 2,147,483,647;
+* The leftmost two bits are reserved for possible future use and, for the time being, are always set to zero.