Format

SDO_UTIL.THEME3D_HAS_LOD(
     theme_name  IN VARCHAR2 
     ) RETURN NUMBER;

Description

Checks if a 3D theme has multiple levels of detail (LODs) (for DEM, PC, and TIN themes with pyramiding), or if a theme is involved in a chain of themes at multiple LODs (for SDO_GEOMETRY themes).

Parameters

theme_name

Name of the 3D theme. Must be a value from the USER_SDO_3DTHEMES or ALL_SDO_3DTHEMES view (described in xxx_SDO_3DTHEMES Views.

Usage Notes

This function returns 0 (zero) if the theme does not have multiple LODs or link to a theme with multiple LODs; otherwise, it returns 1.

Examples

This example does the following for each theme in the USER_SDO_3DTHEMES table: checks if it has multiple LODs and has texture, and returns the block table name. (It assumes that the themes were previously inserted into the USER_SDO_3DTHEMES table.)

SELECT
  name,
  sdo_util.theme3d_has_lod(name) "Has LOD",
  sdo_util.theme3d_has_texture(name) "Has Texture",
  sdo_util.theme3d_get_block_table(name) "Block Table"
FROM user_sdo_3dthemes
ORDER BY name;
 
NAME                                Has LOD Has Texture Block Table
-------------------------------- ---------- ----------- -------------------------
DEM Hawaii Theme 4326                     1           0 DEM_BLOCKS_HAWAII_4326
DEM Hawaii Theme w/ Map Tiles             1           1 DEM_BLOCKS_HAWAII_4326
DEM Splitted Theme                        1           0 DEM_SPLITTED_HAWAII_4326
Geom Theme                                0           0
GeomForDEM Theme                          0           0
GeomForTIN Theme                          0           0
PC Category Theme                         1           0 PC_BLOCKS_CATEGORY
PC Hawaii Theme 4326                      1           0 PC_BLOCKS_HAWAII_4326
PC Intensity Theme                        1           0 PC_BLOCKS_INTENSITY
PC LAS File Theme                         1           0 PC_BLOCKS_LAS
PC RGB Theme                              1           0 PC_BLOCKS_RGB
PC Split Theme                            1           0 PC_SPLIT_BLOCKS_4326
PC Subset Hawaii Theme                    1           0 PC_SUBSET_BLOCKS_4326
PC Theme                                  0           0 PC_BLOCKS_NULL_CRS
TIN Hawaii Theme 4326                     1           0 TIN_BLOCKS_HAWAII_4326
TIN Hawaii Theme w/ Map Tiles             1           1 TIN_BLOCKS_HAWAII_4326
TIN Split Theme                           1           0 TIN_SPLIT_BLOCKS_4326
TIN Subset Hawaii Theme                   1           0 TIN_SUBSET_BLOCKS_4326
 
18 rows selected.

Related Topics

• SDO_UTIL.THEME3D_GET_BLOCK_TABLE

• SDO_UTIL.THEME3D_HAS_TEXTURE