Open pshriwise opened 1 year ago
Adding an inventory of the tags we use to store topological information and metadata:
Tag Name | Type | Real Type | Size | Purpose | Tagged On |
---|---|---|---|---|---|
GLOBAL_ID |
MB_TYPE_INT |
int |
1 | Value of an ID associated with a geometric EntitySet . |
EntitySet |
GEOM_SENSE_2 |
EntityHandle |
uint64_t |
2 | Relates a surface to the two volumes on either side of the surface. An entry in the first position indicates tht the surafce has a sense that is forward with respect to the volume EntityHandle in that position. An entry in the second position indicates that the surface has a sense reversed with respect to the volume EntityHandle in that position. |
|
GEOM_SENSE_N_ENTS |
EntityHandle |
uint64_t |
N | Relates a curve to any topologically adjacent surface EntitySet s. |
EntitySet |
GEOM_SENSE_N_SENSES |
MB_TYPE_INT |
int |
N | Curve sense data correllated with the GEOM_SENSE_N_ENTS information. Values are 1 for a forward senses and -1 for reversed senses. |
EntitySet |
CATEGORY |
MB_TYPE_OPAQUE |
char |
32 | The geometric category of an EntitySet . One of "Vertex", "Curve", "Surface", "Volume", or "Group" |
EntitySet |
GEOM_DIM |
MB_TYPE_INT |
int |
1 | The dimensionality of a geometric EntitySet . See table below for meaning of values. |
EntitySet |
NAME |
MB_TYPE_OPAQUE |
char |
32 | A name assigned to an EntitySet . Use to indicate material assignments, boundary conditions, temperatures, and the implicit complement on EntitySet 's with a CATEGORY tag whose value is "Group" |
EntitySet |
Geometry Object | Dimensionality |
---|---|
Vertex | 0 |
Curve | 1 |
Surface | 2 |
Volume | 3 |
Group | 4 |
Tag Name | Type | True Type | Size | Purpose | Tagged On |
---|---|---|---|---|---|
OBB_ROOT |
EntityHandle |
uint64_t |
1 | This tag resides on geometric EntitySet 's. Its value is the handle of the associated OBB tree root EntitySet . |
EntitySet |
OBB_GSET |
EntityHandle |
uint64_t |
1 | This tag resides on OBB tree root EntitySet 's. Its value is the handle of the associated geometric EntitySet. |
EntitySet |
OBB |
MB_TYPE_DOUBLE |
double |
9 | This tag resides on EntitySets in an OBB tree. The value of this tag is nine doubles representing the oriented bounding box for this EntitySet -node in the tree. |
EntitySet |
Also linking in this set of slides that covers some of this as well as EntitySet
relationships.
https://docs.google.com/presentation/d/10m8e6GN8DhLpNHHSOMniZ2pDU9DOAiD0xJF1Zyewzh8/edit?usp=sharing
There is some information in the developer's guide on what information exists in our
.h5m
files regarding metadata (meaning material/temperature assignments, boundary conditions, etc.).It would be useful to developers to describe in more detail what tags are used (
CATEGORY_TAG
,GEOM_DIM
, etc.), how the metadata is organized in the file ("Group"EntitySet
's are tagged with X and contain Y).Similarly, it would be useful for the developer's guide to contain information on how topological relationships are represented (parent-child relationships) and what each entity set requires to be recognized as a geometric entity (category tag and geom dim tag).