M3dmapAlloc

• See also
User Guide:
Calibrating your 3D reconstruction setup to create a point cloud Filling missing data points (gaps) Multiple camera-laser pairs Organization of the MIL modules Partially corrected depth maps Steps to creating a cloud of 3D points using laser line profiling Using MIL add-on to Visual Studio
Reference:
M3dmapFree McalAlloc MsysAlloc
Availability
Not available in MIL-Lite
Available in MIL


Available on Windows
Available on Linux


Not supported on:
Not supported on Matrox Indio (Update 53 or Update 68) (w)
Not supported on Matrox Concord PoE with ToE (Update 82) (z)
Fully supported on:
Fully supported on Host system (a)
Fully supported on Matrox GigE Vision driver (MIL 10, Update 25, Update 54, or Update 85)* (c)
Fully supported on Matrox Morphis (g)
Fully supported on Matrox Morphis QxT (h)
Fully supported on Matrox Orion HD (i)
Fully supported on Matrox Radient eCL (j)
Fully supported on Matrox Radient eV-CXP (MIL 10 or Update 29)* (k)
Fully supported on Matrox Solios eA/XA (l)
Fully supported on Matrox Solios ecl/xcl/ev-cl (m)
Fully supported on Matrox USB3 Vision driver (Update 19) (o)
Fully supported on Matrox RadientPro-CL (Update 7) (p)
Fully supported on Matrox Radient eV-CL (Update 27 or 74) (r)
Fully supported on Matrox Iris GTR (Update 28 or Update 68) (t)
Fully supported on Matrox Clarity UHD (Update 36 or 76) (u)
Fully supported on Matrox GenTL driver (Update 34) (v)
Fully supported on Matrox Rapixo CXP (Update 75 or Update 84) (y)
Fully supported on Matrox Rapixo CL Pro (Update 96) (aa)


* Refer to the MIL system-specific information
   in the MIL Reference for the minimum update required.


For any information regarding a MIL system added during a MIL Update, see the MIL system’s release note


Available on Non-Matrox computer
Available on Matrox 4Sight-X
Available on Matrox 4Sight GP/GPm
Available on Matrox Supersight
Function map
Examples
cameralasercalibration.cpp
examplemanagerfor3d.cpp
m3dmap.cpp
m3dmap.cs
m3dmap.vb
multicameralasercalibration.cpp

M3dmapAddScan
M3dmapAllocResult

Description

Parameters

SysId INQ

Specifies the identifier of the system on which to allocate the 3D reconstruction context or 3D draw context.

For specifying the system
Value	Description
M_DEFAULT_HOST	Specifies the default Host system of the current MIL application.
MIL system identifier	Specifies a valid system identifier, previously allocated using MsysAlloc().

ContextType

Specifies to allocate a 3D reconstruction context or 3D draw context. This parameter must be set to one of the following:

For specifying the type
Value	Description
M_DRAW_3D_CONTEXT	Specifies a 3D draw context.
M_LASER	Specifies a 3D reconstruction context that will be used to perform laser line (sheet of light) profiling.

ControlFlag INQ

Specifies the 3D reconstruction mode of the context, which determines how data is represented. The data representation determines whether depth maps can be fully corrected and whether 3D point clouds can be returned.

If allocating a 3D draw context, this parameter must be set to M_DEFAULT.

If allocating a 3D reconstruction context, this parameter must be set to one of the following values:

For specifying the 3D reconstruction mode
Value	Description
M_CALIBRATED_CAMERA_LINEAR_MOTION +	Specifies that the 3D reconstruction context will include camera calibration information and depth correction information. This allows for the storage of 3D point clouds and the generation of fully corrected depth maps (shape and depth corrected). Note that the camera calibration context must have been allocated using McalAlloc() with M_TSAI_BASED or M_3D_ROBOTICS. (summarize) Specifies that the 3D reconstruction context will include camera calibration information and depth correction information. (more details...)
M_DEPTH_CORRECTION	Specifies that the 3D reconstruction context will include depth correction information, but will not include camera calibration information. This allows for only partially corrected depth maps (depth, but not shape corrected). (summarize) Specifies that the 3D reconstruction context will include depth correction information, but will not include camera calibration information. (more details...)

Combination values for M_CALIBRATED_CAMERA_LINEAR_MOTION.

You can add one or more of the following values to the above-mentioned value to set the label of the camera or laser.

This is necessary when creating a multiple camera-laser pair setup.

For specifying the camera label or laser label for a given context
Combination value	Description
M_CAMERA_LABEL( MIL_INT CameraLabel )	Specifies the label for the camera used by this 3D reconstruction context. Note that multiple 3D reconstruction contexts can share the same camera, and in those cases, they must also share the same camera label. (summarize) Specifies the label for the camera used by this 3D reconstruction context. (more details...)
		Parameters
		CameraLabel INQ Specifies the value of a camera label.
M_LASER_LABEL( MIL_INT LaserLabel )	Specifies the label for the laser used by this 3D reconstruction context. Note that multiple 3D reconstruction contexts can share the same laser, and in those cases, they must also share the same laser label. (summarize) Specifies the label for the laser used by this 3D reconstruction context. (more details...)
		Parameters
		LaserLabel INQ Specifies the value of a laser label.

ContextOrGeometry3dmapIdPtr

Specifies the address of the variable in which to write the 3D reconstruction context or 3D draw context. Since the M3dmapAlloc() function also returns the identifier, you can set this parameter to M_NULL.

Return value

The returned value is the 3D reconstruction context or 3D draw context identifier if allocation is successful. If allocation fails, M_NULL is returned.