Enum GeometryError 

#[non_exhaustive]
pub enum GeometryError {
    Header(GpbError),
    Body(WkbError),
    NonLinearMember {
        container: GeometryType,
        member: GeometryType,
    },
    TruncatedWkb,
    UnknownWkbType(u32),
    AbstractWkbType(u32),
    TruncatedAt {
        offset: usize,
    },
    InvalidByteOrder {
        offset: usize,
    },
    NestingTooDeep,
    EncodeWkb(WkbError),
}

Errors from constructing or reading a GpbGeometry.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Header(GpbError)

The GPB header could not be parsed.

Body(WkbError)

The ISO WKB body could not be read. This includes non-linear curve types (CIRCULARSTRING, CURVEPOLYGON, …) that the wkb crate does not yet support, as well as structurally malformed bodies.

encode_gpb_from_wkb separates the one case where those two are confusable: see Self::NonLinearMember.

NonLinearMember

A body whose own type is one of the core ones but which contains a non-linear member, such as a GEOMETRYCOLLECTION containing a CIRCULARSTRING.

Reading a non-linear geometry goes through crate::curve rather than the wkb reader, and which reader a body gets is decided from its own type code. A core-typed container therefore reaches the wkb reader, which cannot read the member. Reported separately from Self::Body because the body is not malformed and the distinction is not one a caller can otherwise draw.

Fields

container: GeometryType

The body’s own type.

member: GeometryType

The first non-linear type found inside it.

TruncatedWkb

The WKB body was too short to contain the one-byte order marker and four-byte geometry type code.

UnknownWkbType(u32)

The WKB geometry type code is not one of the GeoPackage geometry types (Annex G).

AbstractWkbType(u32)

The WKB body declares one of the abstract supertypes (GEOMETRY, CURVE, SURFACE), which cannot be instantiated and so cannot appear as a body.

TruncatedAt

The WKB body ended before a count, coordinate, or nested geometry its structure requires.

Fields

offset: usize

Byte offset into the body at which the read ran out of bytes.

InvalidByteOrder

A WKB geometry opened with a byte-order marker that is neither 0 (big endian) nor 1 (little endian).

Fields

offset: usize

Byte offset into the body of the offending marker.

NestingTooDeep

Nested geometry containers exceeded the walk’s depth limit.

EncodeWkb(WkbError)

The geometry could not be encoded to WKB: the georust wkb writer rejected it (for example a coordinate dimension it cannot serialise).

Trait Implementations

impl Debug for GeometryError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for GeometryError

fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for GeometryError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<GeometryError> for Error

fn from(source: GeometryError) -> Self

Converts to this type from the input type.

impl From<GpbError> for GeometryError

fn from(source: GpbError) -> Self

Converts to this type from the input type.

impl From<WkbError> for GeometryError

fn from(source: WkbError) -> Self

Converts to this type from the input type.