The following group codes are used by GEODATA objects.
|
GEODATA group codes |
|
|---|---|
|
Group code |
Description |
|
90 |
AcDbGeoData Object version 1 - 2009 2 - 2010 |
|
70 |
Type of design coordinates: 0 - Unknown 1 - Local grid 2 - Projected grid 3 - Geographic (latitude/longitude) |
|
330 |
ObjectId of host block table record |
|
10,20,30 |
Design point, reference point in WCS coordinates |
|
11,21,31 |
Reference point in coordinate system coordinates, valid only when coordinate type is Local Grid. |
|
12,22 |
North direction vector (2D) |
| 40 | Horizontal unit scale, factor which converts horizontal design coordinates to meters by multiplication. |
| 41 | Vertical unit scale, factor which converts vertical design coordinates to meters by multiplication. |
| 91 | Horizontal units per UnitsValue enumeration. Will be kUnitsUndefined if units specified by horizontal unit scale is not supported by AutoCAD enumeration. |
| 92 | Vertical units per UnitsValue enumeration. Will be kUnitsUndefined if units specified by vertical unit scale is not supported by AutoCAD enumeration. |
|
210,220,230 |
Up direction |
|
95 |
Scale estimation method: 1 - None 2 - User specified scale factor 3 - Grid scale at reference point 4 - Prismoidal |
|
294 |
Bool flag specifying whether to do sea level correction |
|
141 |
User specified scale factor |
|
142 |
Sea level elevation |
|
143 |
Coordinate projection radius |
|
301 |
Coordinate system definition string |
|
302 |
GeoRSS tag |
| 305 | Observation from tag |
| 306 | Observation to tag |
|
307 |
Observation coverage tag |
| 93 | Number of Geo-Mesh points |
|
13,23 |
Coordinate of source mesh point (repeat) |
|
14,24 |
Coordinate of destination mesh point (repeat) |
|
96 |
Number of faces |
|
97 |
Point index for face (repeat) |
|
98 |
Point index for face (repeat) |
|
99 |
Point index for face (repeat) |