Types for Lidar Functions¶
The following types are used as parameters and return values in the various Lidar operations within GlobalMapper. These types use fixed, numeric constants, which are defined here.
- globalmapper.GM_LidarAttr_t8¶
Different Lidar attribute types that can have their values retrieved
- Values:
GM_LidarAttr_ReturnNo = 0
GM_LidarAttr_Intensity = 1
GM_LidarAttr_Class = 2
GM_LidarAttr_ScanAngle = 3
GM_LidarAttr_UserData = 4
GM_LidarAttr_PointSource = 5
GM_LidarAttr_NumTypes = 6
- globalmapper.GM_LidarClass_t8¶
ASPRS Lidar types
- Values:
GM_LidarClass_NeverClassified = 0
GM_LidarClass_Unclassified = 1
GM_LidarClass_Ground = 2
GM_LidarClass_LowVeg = 3
GM_LidarClass_MedVeg = 4
GM_LidarClass_HighVeg = 5
GM_LidarClass_Building = 6
- GM_LidarClass_LowPoint = 7
low point (noise)
- GM_LidarClass_ModelKeyPoint = 8
thinned ground (model key points)
GM_LidarClass_Water = 9
- GM_LidarClass_Railroad = 10
IMPORTANT NOTE: USGS used to use this as Overlap to DO NOT treat as ground.
- GM_LidarClass_Road = 11
Road Surface
GM_LidarClass_Overlap = 12
- GM_LidarClass_WireGuard = 13
Wire - Guard (Shield)
- GM_LidarClass_WireConductor = 14
Wire - Conductor (Phase)
- GM_LidarClass_TransmissionTower = 15
Transmission Tower
- GM_LidarClass_WireStructureConnector = 16
Wire-structure Connector (e.g. Insulator)
- GM_LidarClass_Bridge = 17
Bridge deck
- GM_LidarClass_HighNoise = 18
High Noise point
- GM_LidarClass_OverheadStructure = 19
Overhead structure
- GM_LidarClass_IgnoredGround = 20
Ignored Ground (typically breakline proximity)
- GM_LidarClass_Snow = 21
If present and identifiable
Topo-Bathy Lidar profile types
GM_LidarClass_BathyPoint = 40
GM_LidarClass_WaterSurface = 41
GM_LidarClass_DerivedWaterSurface = 42
GM_LidarClass_SubmergedObject = 43
GM_LidarClass_IhoS57Object = 44
GM_LidarClass_NoBottomFoundBathyPoint = 45
GM_LidarClass_MaxValid = 255
- globalmapper.GM_LidarClassGroup_t16¶
Lidar class groups to categorize what type(s) of data a classification represents
- Values:
- GM_LidarGroup_Surface = 0x0001
Surface points (i.e. ground, water, road)
- GM_LidarGroup_OffSurface = 0x0002
Points that are definitely not on the surface
- GM_LidarGroup_Noise = 0x0004
Noise points
- GM_LidarGroup_Powerline = 0x0008
Points that are along a powerline
- GM_LidarGroup_Structure = 0x0010
Points that are part of a solid structure (i.e. building)
- GM_LidarGroup_Vegetation = 0x0020
Vegetation points
- GM_LidarGroup_Bathy = 0x0040
Bathymetric (i.e. below water surface) points
- GM_LidarGroup_Unclassified = 0x0080
Unclassified points
- globalmapper.GM_LidarDrawMode_t8¶
Drawing types for Lidar data
- Values:
- GM_LidarDraw_ElevWColor = 0
Color based on sample color if available, otherwise elevation
- GM_LidarDraw_Elev = 1
Color based on elevation
- GM_LidarDraw_Intensity = 2
Color based on intensity
- GM_LidarDraw_Class = 3
Color based on class
- GM_LidarDraw_Return = 4
Color based on return (1st, 2nd, etc.)
- GM_LidarDraw_HeightAboveGround = 5
Color based on height above ground
- GM_LidarDraw_PointSourceId = 6
Color based on point source ID
- GM_LidarDraw_PointIndex = 7
Color based on point index
- GM_LidarDraw_ReturnHeightDelta = 8
Color based on difference in height between first and last return of multi-return set
- GM_LidarDraw_CIR = 9
Color infrared display using NIR/red/green for the RGB layout
- GM_LidarDraw_NDVI = 10
Color NDVI value calculated from NIR and red band
- GM_LidarDraw_NDWI = 11
Color NDWI value calculated from NIR and green band
- GM_LidarDraw_Density = 12
Color based on point density
- GM_LidarDraw_Withheld = 13
Color based on withheld flag
- GM_LidarDraw_ModelKeyPoint = 14
Color based on model key point flag
- GM_LidarDraw_Overlap = 15
Color based on overlap point flag
- GM_LidarDraw_ScanAngle = 16
Color based on scan angle
- GM_LidarDraw_ByLayer = 17
Color each layer a different color
- GM_LidarDraw_SegmentId = 18
Color based on segment ID
- GM_LidarDraw_Generic = 19
Color based on generic float field
- GM_LidarDraw_GenericUncertainty = 20
Color based on generic uncertainty field
- GM_LidarDraw_NumTypes = 21
Number of available drawing types
- GM_LidarDraw_Normal = 22
color based on normal(vector)
- GM_LidarDraw_Curvature = 23
color based on curvature field (magnitude)
- GM_LidarDraw_CurvatureDir = 24
color based on curvature field (vector)
- GM_LidarDraw_IntenGrad = 25
color based on intensity gradient field (magnitude)
- GM_LidarDraw_IntenGradDir = 26
color based on intensity gradient field (vector)
- GM_LidarDraw_PCA = 27
color based on PCA (vector)
- GM_LidarDraw_Eigentropy = 28
color based on eigentropy
- GM_LidarDraw_ExtraFieldS32_1 = 29
color based on extra field data
- GM_LidarDraw_ExtraFieldS32_2 = 30
color based on extra field data
- GM_LidarDraw_ExtraFieldS64_1 = 31
color based on extra field data
- GM_LidarDraw_ExtraFieldS64_2 = 32
color based on extra field data
- GM_LidarDraw_ExtraFieldS64_3 = 33
color based on extra field data
- GM_LidarDraw_ExtraFieldS64_4 = 34
color based on extra field data
- GM_LidarDraw_Default = GM_LidarDraw_ElevWColor
Default setting is coloring by elevation
- GM_LidarDraw_Multiple = 0xFE
Multiple different draw modes are select
- GM_LidarDraw_UseGlobal = 0xFF
Use global draw mode setting
- globalmapper.GM_LidarFieldMask_t32¶
Bit masks of Lidar fields that are to be updated
- Values:
- GM_LidarField_Class = 0x00000001
Classification is valid
- GM_LidarField_Color = 0x00000002
Color fields are valid
- GM_LidarField_XY = 0x00000004
XY fields are valid
- GM_LidarField_Z = 0x00000008
Z field is valid
- GM_LidarField_Intensity = 0x00000010
Intensity field is valid
- GM_LidarField_KeyPoint = 0x00000020
Key point flag is valid
- GM_LidarField_Overlap = 0x00000040
Overlap flag is valid
- GM_LidarField_Synthetic = 0x00000080
Synthetic flag is valid
- GM_LidarField_Withheld = 0x00000100
Withheld flag is valid
- GM_LidarField_Deleted = 0x00000200
Deleted flag is valid
- GM_LidarField_GroundHeight = 0x00000400
Height above ground is valid
- GM_LidarField_ReturnHeight = 0x00000800
Return height delta is valid
- GM_LidarField_NIR = 0x00001000
NIR fields are valid
- GM_LidarField_ReturnNum = 0x00002000
Return number field is valid
- GM_LidarField_ReturnCount = 0x00004000
Return count field is valid
- GM_LidarField_ScanAngle = 0x00008000
Scan angle field is valid
- GM_LidarField_ScannerChannel = 0x00010000
Scanner channel field is valid
- GM_LidarField_SourceID = 0x00020000
Point source ID field is valid
- GM_LidarField_UserData = 0x00040000
User data field is valid
- GM_LidarField_EdgeFlightLine = 0x00080000
Edge of flight line field is valid
- GM_LidarField_SegmentID = 0x00100000
Segment ID field is valid
- GM_LidarField_ScanDirection = 0x00200000
Scan direction field is valid
- GM_LidarField_Generic = 0x00400000
Generic float field (statistics) is valid
- GM_LidarField_GenericUncertainty = 0x00800000
Generic uncertainty float field is valid
- GM_LidarField_Normal = 0x01000000
generic uncertainty float field is valid
- GM_LidarField_PrincipalComponents = 0x02000000
principal components vector field is valid
- GM_LidarField_Curvature = 0x04000000
curvature field is valid
- GM_LidarField_CurvatureDir = 0x08000000
curvature direction vector field is valid
- GM_LidarField_IntenGrad = 0x10000000
intensity gradient field is valid
- GM_LidarField_IntenGradDir = 0x20000000
intensity gradient direction vector field is valid
- GM_LidarFieldMask_All = 0xFFFFFFFF
All fields are valid
Mask of fields that are used during Lidar statistics calculation
GM_LidarFieldMask_NonStats = ( GM_LidarField_Color | GM_LidarField_XY | GM_LidarField_SegmentID | GM_LidarField_NIR )
GM_LidarFieldMask_Stats = ~GM_LidarFieldMask_NonStats
- globalmapper.GM_LidarFilterFlags_t32¶
Point flags to keep for filter. Each flag has both a bit to say whether it should be used and another to say if it should be on or off.
- Values:
- GM_LidarFilterFlag_WithheldValid = 0x00000001
Check the withheld flag
- GM_LidarFilterFlag_Withheld = 0x00000002
Point is withheld
- GM_LidarFilterFlag_KeyPointValid = 0x00000004
Check the key point flag
- GM_LidarFilterFlag_KeyPoint = 0x00000008
Point is key point
- GM_LidarFilterFlag_OverlapValid = 0x00000010
Check the overlap flag
- GM_LidarFilterFlag_Overlap = 0x00000020
Point is overlap
- GM_LidarFilterFlag_SyntheticValid = 0x00000040
Check the synthetic flag
- GM_LidarFilterFlag_Synthetic = 0x00000080
Point is synthetic
- GM_LidarFilterFlag_DeletedValid = 0x00000100
Check the deleted flag
- GM_LidarFilterFlag_Deleted = 0x00000200
Point is deleted
- GM_LidarFilterFlag_ModifiedValid = 0x00000400
Check the modified flag
- GM_LidarFilterFlag_Modified = 0x00000800
Point has been modified
- GM_LidarFilterFlag_EdgeofFlightLineValid = 0x00001000
Check the edge of flight flag
- GM_LidarFilterFlag_EdgeofFlightLine = 0x00002000
Point is edge of flight
- GM_LidarFilterFlag_ScanDirectionValid = 0x00004000
Check the scan direction flag
- GM_LidarFilterFlag_ScanDirection = 0x00008000
Point is positive scan direction
- GM_LidarFilterFlag_NoneValid = 0x00010000
Check the none flag
- GM_LidarFilterFlag_None = 0x00020000
Point has no flags set
- globalmapper.GM_LidarFlags_t32¶
Flags for Lidar point features
- Values:
- GM_LidarFlags_ColorValid = 0x00000001
Are the red, green, and blue color values valid?
- GM_LidarFlags_Withheld = 0x00000002
Is the point withheld?
- GM_LidarFlags_Synthetic = 0x00000004
Is the point synthetic?
- GM_LidarFlags_KeyPoint = 0x00000008
Is the point a key point?
- GM_LidarFlags_Overlap = 0x00000010
Is the point overlap?
- GM_LidarFlags_ScanDir = 0x00000020
Scan direction
- GM_LidarFlags_EdgeOfFlightLine = 0x00000040
Is the point on the edge of the flight line
- GM_LidarFlags_Deleted = 0x00000080
Is the point marked as deleted
- GM_LidarFlags_Modified = 0x00000100
Has the point been modified since load?
- GM_LidarFlags_NirValid = 0x00000200
Is the NIR (near infrared) value valid?
- globalmapper.GM_LidarFlagType_t8¶
Definition of different types that can be returned
- Values:
GM_LidarFlag_Synthetic = 0
GM_LidarFlag_KeyPoint = 1
GM_LidarFlag_Overlay = 2
GM_LidarFlag_Withheld = 3
GM_LidarFlag_EdgeOfFlightLine = 4
GM_LidarFlag_None = 5
GM_LidarFlag_NumTypes = 6
- globalmapper.GM_LidarGridField_t8¶
Fields of data to grid for Lidar data
- Values:
- GM_LidarGrid_Elevation = 0
Grid the elevation values
- GM_LidarGrid_Intensity = 1
Grid Lidar point intensity values rather than elevation values
- GM_LidarGrid_Height = 2
Grid Lidar height above ground rather than elevation values
- GM_LidarGrid_ColorRGB = 3
Grid the RGB color from Lidar points
- GM_LidarGrid_ColorRGBI_NIR = 4
Grid the RGBI color from 4-band Lidar (RGB+NIR)
- GM_LidarGrid_ColorRGBI_Intensity = 5
Grid the RGBI color from 4-band Lidar (RGB+Intensity)
- GM_LidarGrid_Class = 6
Grid the classification code from Lidar points
- GM_LidarGrid_Density = 7
Grid the point density in points / m^2 of a Lidar point cloud
- GM_LidarGrid_NDVI = 8
Grid the calculated NDVI value from 4-band Lidar (RGB+NIR)
- GM_LidarGrid_NDWI = 9
Grid the calculated NDWI value from 4-band Lidar (RGB+NIR)
- GM_LidarGrid_Red = 10
Grid the Red value (single band)
- GM_LidarGrid_Green = 11
Grid the Green value (single band)
- GM_LidarGrid_Blue = 12
Grid the Blue value (single band)
- GM_LidarGrid_NIR = 13
Grid the NIR value (single band)
- GM_LidarGrid_ScanAngle = 14
Grid the Scan Angle value
- GM_LidarGrid_PointSourceID = 15
Grid the Point Source ID value
- GM_LidarGrid_UserData = 16
Grid the User Data value
- GM_LidarGrid_ScannerChannel = 17
Grid the Scanner Channel value
- GM_LidarGrid_NumPointsInCell = 18
Grid the number of points in each cell
GM_LidarGrid_NumTypes = 19
- globalmapper.GM_LidarReturnPulseId_t8¶
Enumeration specifying how pulses in a multi-return are identified. They must be contiguous (i.e. by GPS time), but can also skip over things with different fields, like user data or point source ID
- Values:
- GM_LidarPulseId_OnlyGpsTime = 0
Only the sequence/GPS time is considered
- GM_LidarPulseId_UserData = 1
Points must have appropriate GPS time and same user data to be part of same return
- GM_LidarPulseId_PointSourceID = 2
Points must have appropriate GPS time and same point source ID to be part of same return
- GM_LidarPulseId_ScannerChannel = 3
Points must have appropriate GPS time and same scanner channel to be part of same return
- GM_LidarPulseId_PointSourceID_ScannerChannel = 4
Points must have appropriate GPS time and same point source ID and scanner channel to be part of same return
- GM_LidarPulseId_PointSourceID_UserData = 5
Points must have appropriate GPS time and same point source ID and user data to be part of same return
- GM_LidarPulseId_NumTypes = 6
Number of different values
GM_LidarPulseId_Default = GM_LidarPulseId_OnlyGpsTime
- globalmapper.GM_LidarReturnType_t8¶
Different Lidar point return types
- Values:
GM_LidarReturn_Unknown = 0
GM_LidarReturn_First = 1
GM_LidarReturn_Second = 2
GM_LidarReturn_Last = 3
GM_LidarReturn_Single = 4
GM_LidarReturn_FirstOfMany = 5
GM_LidarReturn_SecondOfMany = 6
- GM_LidarReturn_ThirdOrLaterOfMany = 7
Return number >= 3
GM_LidarReturn_LastOfMany = 8
- GM_LidarReturn_NumTypes = 9
Types for backwards code compatibility
- GM_LidarReturn_ThirdOfMany = GM_LidarReturn_ThirdOrLaterOfMany
Return number >= 3
- globalmapper.GM_LidarResMult_t¶
Lidar resolution multiplier types for dialog
- Values:
- GM_LidarResMult_Spacings = 0
Resolution multiplier in spacings
- GM_LidarResMult_Meters = 1
Resolution multiplier in meters
- GM_LidarResMult_Feet = 2
Resolution multiplier in feet
GM_LidarResMult_NumTypes = 3
- globalmapper.GM_LidarClassifyTypes_t32¶
Flags for types of points to classify
- Values:
- GM_Classify_Ground = 0x00000001
Classify likely ground points
- GM_Classify_Buildings = 0x00000002
Classify building points
- GM_Classify_HighVeg = 0x00000004
Classify high veg
- GM_Classify_Powerline = 0x00000008
Classify powerlines
- GM_Classify_HighNoise = 0x00000010
Classify high noise
- GM_Classify_LowNoise = 0x00000020
Classify low noise
- GM_Classify_Pole = 0x00000040
Classify pole like objects
Masks of combinations of classifications
GM_Classify_Noise = GM_Classify_HighNoise | GM_Classify_LowNoise,
GM_Classify_NonGround = GM_Classify_Buildings | GM_Classify_HighVeg | GM_Classify_Powerline | GM_Classify_Pole,
GM_Classify_NonGroundDialog = GM_Classify_Buildings | GM_Classify_HighVeg,
GM_Classify_PoleDialog = GM_Classify_Powerline | GM_Classify_Pole
- globalmapper.GM_ClassifyGroundFlags_t32¶
Flags for ground setup
- Values:
- GM_ClassifyGround_ResetGroundPoints = 0x00000001
Reset existing ground points to unknown classification at start of operation
- GM_ClassifyGround_KeepNonGroundPoints = 0x00000002
Keep non-ground points as whatever type they were re-classified to rather than resetting
- GM_ClassifyGround_CreateDebugLayers = 0x00000004
Create layers for debugging auto-classify ground
- GM_ClassifyGround_RemoveNearNonGround = 0x00000008
Run the ‘remove near non-ground’ part of the algorithm
- GM_ClassifyGround_HideProgress = 0x00000010
Don’t show cancellable progress during this operation
- globalmapper.GM_ClassifyNoiseFlags_t32¶
Flags for noise setup
- Values:
- GM_ClassifyNoise_UnclassifiedOnly = 0x00000001
Only mark unclassified points as noise
- GM_ClassifyNoise_NoHighNoise = 0x00000002
Don’t mark high noise
- GM_ClassifyNoise_NoLowNoise = 0x00000004
Don’t mark low noise
- GM_ClassifyNoise_CreateDebugLayers = 0x00000008
Create layers for debugging auto-classify
- GM_ClassifyNoise_ChangeClass = 0x00000010
Change the classification of noise points?
- GM_ClassifyNoise_MarkWithheld = 0x00000020
Mark points as withheld
- GM_ClassifyNoise_MarkDeleted = 0x00000040
Mark points as deleted
- GM_ClassifyNoise_ResetNoisePoints = 0x00000080
Reset existing noise points to unknown classification at start of operation
- GM_ClassifyNoise_CheckHeightRange = 0x00000100
Set if the min/max height above ground range is valid
- GM_ClassifyNoise_HideProgress = 0x00000200
Don’t show cancellable progress
- GM_ClassifyNoise_Defaults = GM_ClassifyNoise_ChangeClass
Default value
- globalmapper.GM_ClassifyNonGroundFlags_t32¶
Flags for non-ground setup
- Values:
- GM_Classify_ResetPoints = 0x00000001
Reset existing points of the type(s) that are about to be classified
- GM_Classify_CreateDebugLayers = 0x00000002
Create layers for debugging auto-classify with best-fit plane information
- GM_Classify_SinglePassBestFit = 0x00000004
Only do a single pass for the best-fit plane finding rather than doing a 2nd weighted pass
- GM_Classify_IgnoreNDVI = 0x00000008
Don’t use the NDVI values for NIR-enabled points to help classify vegetation/buildings
- GM_Classify_IgnoreNDWI = 0x00000010
Don’t use the NDWI values for NIR-enabled points to help classify vegetation/buildings
- GM_Classify_HideProgress = 0x00000020
Don’t show cancellable progress
- globalmapper.GM_LidarExtractType_t32¶
Types of features to extract
- Values:
- GM_LidarExtract_Buildings = 0x0000001
Extract building outlines
- GM_LidarExtract_Trees = 0x0000002
Extract tree points/areas
- GM_LidarExtract_Powerlines = 0x0000004
Extract powerlines
- GM_LidarExtract_Poles = 0x0000008
Extract poles
- globalmapper.GM_LidarExtractFlags_t32¶
Flags for non-ground setup
- Values:
- GM_LidarExtract_CreateSideWalls = 0x00000001
Create side walls for 3D building outlines
- GM_LidarExtract_SaveDebugInfo = 0x00000002
Save any debug layers
- GM_LidarExtract_CreateSeparateRoofPieces = 0x00000004
Create separate roof pieces if the angle or plane height changes dramatically instead of one building per cluster
- GM_LidarExtract_CreateTreePolygons = 0x00000008
Extract tree coverage areas
- GM_LidarExtract_SmoothTreePolygons = 0x00000010
Smooth the tree coverage area polygons
- GM_LidarExtract_BestFitPlaneForRoofPieces = 0x00000020
If creating separate roof pieces, use a best fit plane of the roof points to get the elevations to assign rather than nearest point
- GM_LidarExtract_CreateBuildingAsMesh = 0x00000040
Create 3D model (mesh) for buildings rather than 3D areas
- GM_LidarExtract_CreateFootprints = 0x00000080
Create footprints
- GM_LidarExtract_HideProgress = 0x00000100
Hide progress dialog
- globalmapper.GM_LidarExtractLayer_t32¶
Available layers for Lidar extraction
- Values:
- GM_LidarExtractLayer_BuildingHulls = 0
Layer for building hulls (3d RDTs)
- GM_LidarExtractLayer_BuildingFootprints = 1
Layer for building footprints (2D RDTs simplified)
- GM_LidarExtractLayer_BuildingWalls = 2
Layer for building walls connecting simplified footprints and roof planes
- GM_LidarExtractLayer_BuildingPlanes = 3
Layer for building planes (boundaries match walls and simplified footprints in x,y)
- GM_LidarExtractLayer_Pole = 4
Layer for pole features
- GM_LidarExtractLayer_Powerline = 5
Layer for powerline features
- GM_LidarExtractLayer_Tree = 6
Layer for tree features
- GM_LidarExtractLayer_PoleHulls = 7
Layer for pole mesh
- GM_LidarExtractLayer_TreeHulls = 8
Layer for tree mesh
- GM_LidarExtractLayer_TreeFootprints = 9
Layer for tree polygons
GM_LidarExtract_NumLayers = 10
- globalmapper.GM_CameraModel_t8¶
Available camera types
- Values:
GM_CameraModel_Pinhole = 1
GM_CameraModel_PinholeRadial1 = 2
GM_CameraModel_PinholeRadial3 = 3
GM_CameraModel_PinholeBrown2 = 4
GM_CameraModel_PinholeSimpleFisheye = 5
GM_CameraModel_FirstGap = 6
GM_CameraModel_Spherical = 7
GM_CameraModel_Default = GM_CameraModel_PinholeRadial3
GM_CameraModel_Unknown = 0
- globalmapper.GM_SfmMethod_t8¶
The available SfM (Structure-from-Motion) methods
- Values:
- GM_SfmMethod_Incremental = 0
Incremental2 SfM engine from latest OpenMVG version
- GM_SfmMethod_Global = 1
Global SfM
- GM_SfmMethod_GlobalThenInc = 2
Run Global SfM, then Incremental2 (faster than just doing Incremental2)
- GM_SfmMethod_IncrementalOrig = 3
Original Incremental method from latest OpenMVG version
- GM_SfmMethod_IncrementalOld = 4
Old original Incremental from pre-OpenMVG 1.4
GM_SfmMethod_NumTypes = 5
GM_SfmMethod_Default = GM_SfmMethod_Incremental
- globalmapper.GM_SfmQuality_t8¶
SfM (Structure-from-Motion) quality options
- Values:
GM_SfmQuality_Normal = 0
GM_SfmQuality_High = 1
GM_SfmQuality_Ultra = 2
GM_SfmQuality_NumTypes = 3
GM_SfmQuality_Default = GM_SfmQuality_Normal
- globalmapper.GM_SfmImageDescriberMethod_t8¶
Image describer methods
- Values:
- GM_Describer_SIFT = 0
Use SIFT method (default)
- GM_Describer_AkazeFloat = 1
Use AKAZE with floating point descriptors
- GM_Describer_AkazeMldb = 2
Use AKAZE with binary descriptors
- GM_Describer_NumTypes = 3
Count of describer methods
GM_Describer_Default = GM_Describer_SIFT
- globalmapper.GM_SfmInitializer_t8¶
Incremental SfM (Structure-from-Motion) initializer methods
- Values:
- GM_SfmInit_ExistingPose = 0
Initialize the reconstruction from the existing sfm_data camera poses
- GM_SfmInit_MaxPair = 1
Initialize the reconstruction from the pair that has the most of matches
- GM_SfmInit_AutoPair = 2
Initialize the reconstruction with a pair selected automatically
- GM_SfmInit_Stellar = 3
Initialize the reconstruction with a ‘stellar’ reconstruction
- GM_SfmInit_NumTypes = 4
Count of SFM enumerated values
- GM_SfmInit_Default = GM_SfmInit_Stellar
Stellar reconstruction is used as the default parameter value
- GM_SfmInit_UseDefault = -1
Use whatever the default is
- globalmapper.GM_SfmTriMethod_t8¶
Incremental SfM triangulation method (enum values must match what is passed to OpenMVG_main_IncrementalSfM2.exe
- Values:
GM_SfmTriMethod_DirectLinearTransform = 0
GM_SfmTriMethod_L1Angular = 1
GM_SfmTriMethod_LInfinityAngular = 2
GM_SfmTriMethod_InverseDepthWeightedMidpoint = 3
GM_SfmTriMethod_NumTypes = 4
GM_SfmTriMethod_Default = GM_SfmTriMethod_InverseDepthWeightedMidpoint
GM_SfmTriMethod_UseDefault = -1
- globalmapper.GM_SfmResection_t8¶
Incremental SfM Resection method; enum values must match what is passed to OpenMVG_main_IncrementalSfM2.exe
- Values:
GM_SfmResection_DirectLinearTransform = 0
GM_SfmResection_P3P_KE_CVPR17 = 1
GM_SfmResection_P3P_KNEIP_CVPR11 = 2
GM_SfmResection_P3P_NORDBERG_ECCV18 = 3
GM_SfmResection_UP2P_KUKELOVA_ACCV10 = 4
GM_SfmResection_NumTypes = 5
GM_SfmResection_Default = GM_SfmResection_P3P_NORDBERG_ECCV18
GM_SfmResection_UseDefault = -1
- globalmapper.GM_GeoRegistrationOrderFlags_t8¶
How control points and/or GPS EXIF information from the images should be applied
- Values:
- GM_GeoRegistration_GCPsBeforeSfM = 0x01
Apply Ground Control Points (GCPs) before doing SfM
- GM_GeoRegistration_NoExifIfGCPs = 0x02
Don’t apply EXIF information if GCPs are successfully applied
- GM_GeoRegistration_GCPsBeforeExif = 0x04
Apply GCPs before EXIF rather than after
- GM_GeoRegistration_UseRobustReg = 0x08
Use robust registration of EXIF location by default rather than using all points
- GM_GeoRegistration_DefaultFlags = 0
Don’t use any of the above options
- globalmapper.GM_P2PFlags_t32¶
Option flags for a Pixels-to-Points (P2P) setup object
- Values:
- GM_P2P_AdjustZUsingControlPoints = 0x00000001
Adjust the Z level using the control points, which should get an even better Z match with this approach
- GM_P2P_DeleteWorkFiles = 0x00000002
Delete the files when finished
- GM_P2P_KeepWorkFilesOnSuccess = 0x00000004
Keep work files on success even if GM_P2P_DeleteWorkFiles is set. Use if you will delete work folder externally
- GM_P2P_IgnoreExif = 0x00000008
Drop the EXIF data in the images
- GM_P2P_UseRelativeAltitudes = 0x00000010
Use relative altitudes offset by a base instead of EXIF values
- GM_P2P_UseColorHarmonization = 0x00000020
Harmonize colors between images before processing
- GM_P2P_CloudCreateFromMesh = 0x00000040
Create point cloud from mesh rather than using original densified cloud. This takes longer but produces point clouds with less ‘thickness’
- GM_P2P_AddCloudLayer = 0x00000080
Automatically load and add the cloud layer, even if not saving to a file
- GM_P2P_LoadSparseCloud = 0x00000100
Load the sparse point cloud, in addition to the dense one
- GM_P2P_UseSceneClustering = 0x00000200
Use scene clustering to break up very large jobs
- GM_P2P_ImageCreateFromMesh = 0x00000400
Create an ortho-image from the mesh rather than a point cloud
- GM_P2P_ImageCreateSeparate = 0x00000800
Create a separate ortho-image from each separate image rather than combining them
- GM_P2P_DensifyUseSemiGlobal = 0x00001000
Use semi-global matching for DensifyPointCloud
- GM_P2P_HideProgress = 0x00002000
Don’t show a progress dialog for this operation
- GM_P2P_RecursiveImageSearch = 0x00004000
Recursively look for images in mImageFolder
- GM_P2P_DontUseGPU = 0x00008000
Don’t use the GPU for any processing
- GM_P2P_ObeyTakeOffRelativeAlt = 0x00010000
obey the relative altitude at take-off to get a Z offset for adjusting relative altitudes based on known ground locations
GM_P2P_Default = GM_P2P_AdjustZUsingControlPoints | GM_P2P_DeleteWorkFiles | GM_P2P_AddCloudLayer | GM_P2P_ImageCreateFromMesh | GM_P2P_ObeyTakeOffRelativeAlt
- globalmapper.GM_SpatialThinAlg_t8¶
Spatial thinning algorithm; specify which point to select from each bin grid when thinning
- Values:
- GM_ThinAlg_Min = 0
Use point with minimum elevation in bin
- GM_ThinAlg_Max = 1
Use point with maximum elevation in bin
- GM_ThinAlg_Med = 2
Use point with median elevation in bin
- GM_ThinAlg_3D = 3
Keep median point in each 3D cube of bin size
- GM_ThinAlg_KeepNth = 4
Keep every Nth point (i.e. every 4th return)
- GM_ThinAlg_SkipNth = 5
Skip every Nth point (i.e. skip every 4th return - thin by 25%)
- GM_ThinAlg_NumTypes = 6
Count of thinning algorithms
- globalmapper.GM_LidarSpatialSort_t8¶
Define spatial sorting options for Lidar
- Values:
- GM_LidarSort_None = 0
Don’t sort
- GM_LidarSort_Always = 1
Always sort spatially
- GM_LidarSort_IfPoorlyOrganized = 2
Sort spatially if poorly organized
- GM_LidarSort_NotSpecified = 0xFF
No specified sorting
- globalmapper.GM_LidarCompareFlags_t32¶
Lidar comparison flags
- Values:
- GM_LidarCompare_CheckOutsideBounds = 0x00000001
Include points outside the intersected bounds of both clouds in the changed results
- GM_LidarCompare_CompareBothDirs = 0x00000002
Find points in ‘compare to’ cloud set that aren’t in the ‘compare’ set, as well as the reverse
- GM_LidarCompare_DelNewPoints = 0x00000004
Mark new points as deleted in their original point cloud layer
- GM_LidarCompare_CreateNewLayers = 0x00000008
Create new point cloud layers with the difference points (if any are found)
- GM_LidarCompare_CreateNewQueries = 0x00000010
Save queries with the difference points from the provided loaded point cloud layer(s)
- GM_LidarCompare_HideProgress = 0x00000020
Hide progress bar dialog
- GM_LidarCompare_SaveDistInGeneric = 0x00000040
Save distance (meters) to nearest point in other cloud in Generic stream
- GM_LidarCompare_DifferenceReportWindows = 0x00000080
Spawn difference report windows
- GM_LidarCompare_DifferenceReportText = 0x00000100
Write difference report text file
- GM_LidarCompare_Default = GM_LidarCompare_CreateNewLayers
Default settings are to create new difference layers
- globalmapper.GM_LidarColorizeFields_t8¶
Flags for fields to colorize during the LidarColorize operation
- Values:
- GM_LidarColorize_RGB = 0
Update RGB fields
- GM_LidarColorize_RGBI = 1
Update RGB+NIR fields
- GM_LidarColorize_Inten = 2
Update Intensity fields
- GM_LidarColorize_NumFields = 3
Count of field flags
- globalmapper.GM_LidarColorizeFlags_t8¶
Colorize field types
- Values:
- GM_LidarColorize_OverwriteExisting = 0x01
Overwrite existing color/intensity values
- GM_LidarColorize_Keep8BitValues = 0x02
Keep values at 8-bit rather than normalizing to 16-bit
- GM_LidarColorize_HideProgress = 0x04
Don’t show progress for the operation
- GM_LidarColorize_UseAdjustedColors = 0x08
Use contrast-adjusted colors rather than raw color band values?
- GM_LidarColorize_DefaultFlags = GM_LidarColorize_OverwriteExisting
The default setting is to overwrite the existing values
- globalmapper.GM_LidarColorizeIntensity_t8¶
Colorize operation intensity types
- Values:
- GM_LidarColorizeInten_Gray = 0
Use grayscale or average value
- GM_LidarColorizeInten_Red = 1
Use red band for intensity
- GM_LidarColorizeInten_Green = 2
Use green band for intensity
- GM_LidarColorizeInten_Blue = 3
Use blue band for intensity
- GM_LidarColorizeInten_NumTypes = 4
Count of intensity band types
- GM_LidarColorizeInten_Default = GM_LidarColorizeInten_Gray
Default value is grayscale
- globalmapper.GM_SwathSeparationImageFlags_t32¶
Define flags for Swath Separation Image (SSI) creation
- Values:
- GM_SSI_UseLayerForFlightLine = 0x00000001
Treat each layer as a separate flight line rather than using the point source ID
- GM_SSI_HideProgress = 0x00000002
Hide progress for operation
- GM_SSI_SaveDebugLayers = 0x00000004
Save temporary layers generated during the process for debugging
- GM_SSI_SaveWorldFile = 0x00000008
Save a world file alongside the image
- GM_SSI_SavePRJFile = 0x00000010
Save a PRJ file alongside the image
- GM_SSI_LoadGeneratedImage = 0x00000020
Automatically load the generated image
GM_SSI_DefaultFlags = GM_SSI_SaveWorldFile | GM_SSI_SavePRJFile | GM_SSI_LoadGeneratedImage