GeoAttribCollection Interface Reference

GeoShape's attribute set. More...

Inheritance diagram for GeoAttribCollection:

Public Member Functions
proto external int	Count ()
	Total number of attributes in the collection.
proto external string	GetName (int index)
	Gets attribute's name.
proto external GeoAttribType	GetType (int index)
	Gets attribute's data type.
proto external bool	IsAttribSet (int index)
	True iff the attribute has a value (is not null).
proto external int	GetInt (int index)
	Gets an attribute's value as int.
proto external float	GetFloat (int index)
	Gets an attribute's value as float.
proto external string	GetString (int index)
	Gets an attribute's value as string.
proto external int	GetIndexByName (string name)
	Gets an attribute's index by its name.
proto external bool	HasAttrib (string name)
proto external bool	IsAttribSetByName (string name)
	True iff the attribute exists and has a value (is not null).
proto external int	GetIntByName (string name)
	Gets an attribute's value as int.
proto external float	GetFloatByName (string name)
	Gets an attribute's value as float.
proto external string	GetStringByName (string name)
	Gets an attribute's value as string.
Public Member Functions inherited from Managed
proto external ref Managed	Clone ()
	Return shallow copy of object, or null if it is not allowed (not public constructor)

Detailed Description

GeoShape's attribute set.

Note: For ESRI Shapefiles, all shapes in a Shapefile will have the same attributes, i.e. Count(), GetName(), GetType(), GetIndexByName() and HasAttrib() will always return the same value for all shapes in the file for a given arguments. THIS MAY NOT BE TRUE FOR OTHER FORMATS (e.g. GeoJSON).

Member Function Documentation

Count()

proto external int GeoAttribCollection.Count

(

)

Total number of attributes in the collection.

GetFloat()

proto external float GeoAttribCollection.GetFloat

(

int

index

)

Gets an attribute's value as float.

Parameters

index

attribute index [0 .. count-1]

Returns

Original value if attrib's type is FLT, type-casted value if attrib's type is INT, 0 otherwise.

GetFloatByName()

proto external float GeoAttribCollection.GetFloatByName

(

string

name

)

Gets an attribute's value as float.

Note: All *ByName(string) method versions are slower than their counterparts using attribute's index.

Parameters

name	attribute's name

Returns

Original value if attrib's type is FLT, type-casted value if attrib's type is INT, 0 if the attribute does not exist or is of another type.

GetIndexByName()

proto external int GeoAttribCollection.GetIndexByName

(

string

name

)

Gets an attribute's index by its name.

Parameters

name	attribute's name

Returns

Attribute's index or -1 if there is no such attribute.

GetInt()

proto external int GeoAttribCollection.GetInt

(

int

index

)

Gets an attribute's value as int.

Parameters

index

attribute index [0 .. count-1]

Returns

Original value if attrib's type is INT, floored value if attrib's type is FLT, 0 otherwise.

GetIntByName()

proto external int GeoAttribCollection.GetIntByName

(

string

name

)

Gets an attribute's value as int.

Note: All *ByName(string) method versions are slower than their counterparts using attribute's index.

Parameters

name	attribute's name

Returns

Original value if attrib's type is INT, floored value if attrib's type is FLT, 0 if the attribute does not exist or is of another type.

GetName()

proto external string GeoAttribCollection.GetName

(

int

index

)

Gets attribute's name.

Parameters

index

attribute index [0 .. count-1]

GetString()

proto external string GeoAttribCollection.GetString

(

int

index

)

Gets an attribute's value as string.

Parameters

index

attribute index [0 .. count-1]

Returns

Original value if attrib's type is STR, otherwise it yields in undefined behavior.

GetStringByName()

proto external string GeoAttribCollection.GetStringByName

(

string

name

)

Gets an attribute's value as string.

Note: All *ByName(string) method versions are slower than their counterparts using attribute's index.

Parameters

name	attribute's name

Returns

Original value if attrib's type is STR, undefined behavior if the attribute does not exist or is of another type.

GetType()

proto external GeoAttribType GeoAttribCollection.GetType

(

int

index

)

Gets attribute's data type.

Determines which Get*(int index) method should be use to read the value.

Parameters

index

attribute index [0 .. count-1]

HasAttrib()

proto external bool GeoAttribCollection.HasAttrib

(

string

name

)

Returns

True iff a given attribute exists in a collection. (Still, it may not be set: may have no value, be null).

Parameters

name	attribute's name

IsAttribSet()

proto external bool GeoAttribCollection.IsAttribSet

(

int

index

)

True iff the attribute has a value (is not null).

Note: This may not be reliable with ESRI shapefiles as they don't officially support null values.

Parameters

index

attribute index [0 .. count-1]

IsAttribSetByName()

proto external bool GeoAttribCollection.IsAttribSetByName

(

string

name

)

True iff the attribute exists and has a value (is not null).

Note: All *ByName(string) method versions are slower than their counterparts using attribute's index.

Parameters

name	attribute's name

See also

IsAttribSet(int index)

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The documentation for this interface was generated from the following file:

• Core/generated/WorkbenchAPI/GeoShapes/GeoAttribCollection.c