Topological relation

Defines the required topological relation. Selection:

•Single containing feature
(Whole feature has to be included)

•Single intersecting feature
(Intersection possible)

•Dominant intersecting feature
(In case of intersection, majority of feature has to be included)

•No intersection feature
(no intersection)

•Nearest feature

Assignment required

Defines whether object assignment is required for editing

Layer-ID

Explicit ID of the layer, which will be used for topological object assignment.

•The fields of the reference-layer have to be configured also as search- and resultfields on the search-layer.

•It is also possible to configure more than one reference layer. In that case all assigned attribute values will be assumed on the target/edit-layer.

•It is also possible to configure a target field in several reference layers. In this case, the value from the topmost reference layer that results in a topological match is written to the target field. If no feature can be assigned to the topmost reference layer, the next reference layer containing the target field is checked, and so on, until a topological assignment is made. If no assignment is made in any reference layer, the target field remains empty.

•It is possible to edit one ore more than one feature with topological object assignment. If more than one feature is being edited it may happen that the attribute values placed by the topology differ throughout the features.

Assignment layer field

Fieldname on assignment layer.

Target Field

Target inputfield. An existing inputfield configuration is required.

Target Field:

Target inputfield. An existing inputfield configuration is required.

Direction measuring system

Polar angles are measured counterclockwise from the positive x-axis. In the north azimuth system, the azimuth of a line is the horizontal angle measured from a meridian to the line, measured in the clockwise direction from north.

Direction measuring unit

Unit of angular measure. Supporting only decimal degree (eg 40.251).

•The fields of the reference-layer (for field assignment) have to be configured also as search- and resultfields on the search-layer.

•If you are using a field > field assignment, the following combinations of datatypes between the appropriate fields of the edit-layer and the reference-layer (for field assignment) are supported:

oBOOLEAN, DATE, NUMBER_FIXED, NUMBER_FLOATING and STRING are compatible with STRING.

oNUMBER_FIXED is compatible with NUMBER_FLOATING.

oOID, INTEGER and SMALL_INTEGER are compatible with each other.

oSINGLE and DOUBLE are compatible with each other.

oBLOB, GEOMETRY and RASTER are compatible with each other.

oSTRING, XML, GLOBALID and GUID are compatible with each other.

•Please consider, that the length of a field of datatype STRING on the edit-layer must be smaller or equal than the appropriate field-length on the reference-layer (for field assignment).

•If you use a angle > field assignment you have to configure on the assignment layer the topological relation nearest feature.

•See chapter Editing with topological assignment for details about editing in the © VertiGIS GmbH - Technical Documentation Team / 2024 client.

•Topological object assignment can also be used via the Service API (synservice).