Orrery Terrain · OrreryTerrainEditor module · struct

FOrreryDemImportOptions

Editor only

Settings of one DEM import: the heightmap import's (mip depth, memory budget, compression) and the DEM's own.

Declaration

struct FOrreryDemImportOptions : public FOrreryHeightmapImportOptions

Header: #include "OrreryTerrainDemImport.h"
Module: PublicDependencyModuleNames.Add("OrreryTerrainEditor"); in an editor module’s Build.cs: an editor module, not in packaged games.
Stability: Stable: changes within a major version only add.
Derives from: FOrreryHeightmapImportOptions

FOrreryHeightmapImportOptions::SidecarPath is not read: a GeoTIFF carries its placement.

Name	Type	Default	Meaning
`Decimate`	`int32`	`1`	Keep every Nth post in X and Y (point sampling, as the mips do); the cell becomes the pixel size times this. 1..1024.
`bSetGeoOrigin`	`bool`	`false`	Take (GeoOriginEasting_m, GeoOriginNorthing_m) as the CRS position of world (0, 0); otherwise the north-west post is.
`GeoOriginEasting_m`	`double`	`0.0`	Metres in the file's CRS.
`GeoOriginNorthing_m`	`double`	`0.0`	Metres in the file's CRS.
`Cell_m`	`double`	`0.0`	Post spacing, metres, before decimation. Required for a file without placement; for a placed file 0 or its pixel size (another value is refused, never resampled).
`Origin_m`	`FVector2D`	`FVector2D::ZeroVector`	World position of the north-west post of a file without placement, metres. Ignored for placed files.
`LinearUnit_m`	`double`	`0.0`	Metres per CRS unit for a file without ProjLinearUnits (3076); 0 keeps the metre the reader assumed.
`bOverrideNodata`	`bool`	`false`	Replace the files' nodata (GDAL_NODATA) with Nodata, compared with the raw sample before any scale. NaN is allowed.
`Nodata`	`double`	`0.0`	—
`MaxNodataFraction`	`double`	`0.05`	Refuse the import when more than this fraction of the decimated posts has no data.
`bParallelDecode`	`bool`	`true`	Decode a band's blocks with ParallelFor; false decodes on the calling thread (the result is the same).