Height field specific query modes to determine the data localities of height field patches. More...
#include <idistributed_data_locality.h>
Inherits mi::base::Interface_declare< 0xc985b49c, ... >.
Public Types | |
| enum | Height_field_locality_query_mode { HEIGHT_FIELD_LOCALITY_QUERY_SUBSETS_UNIQUE_CLUSTER = 0x01u , HEIGHT_FIELD_LOCALITY_QUERY_SUBSETS_UNIQUE_PER_HOST = 0x02u } |
| Height field data locality query modes. More... | |
Public Member Functions | |
| virtual Height_field_locality_query_mode | get_query_mode () const =0 |
| The height field query mode defines if globally or locally unique data subsets shall be considered for the data locality. More... | |
| virtual const mi::math::Bbox_struct< mi::Float32, 2 > & | get_spatial_coverage () const =0 |
| Spatial query methods let determine data localities based on a 2D spatial coverage. More... | |
Height field specific query modes to determine the data localities of height field patches.
Deriving a data locality from the data distribution for a height field dataset based on the 2D bounding box. A data locality determined using this query method will include all data subsets that are contained inside or just intersect the region of interest.
In contrast to a sparse volume dataset (see ISparse_volume_scene_element) a height field is defined in 2.5D and its 2D support may intersect multiple subregion in 3D space along the height fields height-axis. Analysis techniques that merely inspect height field data, e.g., to calculate an average height value only need to determine a single patch. For processing techniques that change the elevation values, all patches that along the z axis need to be considered and updated after the operation. To consider both, a height field query exposes to modes: globally unique or locally unique height field data subsets.
Height field data locality query modes.
This mode allows to query the height-field data locality of the data subsets which are either globally unique or unique per host. Globally unique mode will reference a single subset only once, while in per-host unique mode the locality potentially references a subset multiple times, but only once per host.
| Enumerator | |
|---|---|
| HEIGHT_FIELD_LOCALITY_QUERY_SUBSETS_UNIQUE_CLUSTER | ! Data locality considers globally unique data subsets only. |
| HEIGHT_FIELD_LOCALITY_QUERY_SUBSETS_UNIQUE_PER_HOST | ! Data locality considers locally unique data subsets only. |
|
pure virtual |
The height field query mode defines if globally or locally unique data subsets shall be considered for the data locality.
|
pure virtual |
Spatial query methods let determine data localities based on a 2D spatial coverage.
The bounding box represented by mi::math::Bbox_struct<mi::Float32, 2> specifies a 2D area of interest. Only data subsets that are covered at least partially, will be considered in a data locality.
