MedgeSave

Save an Edge Finder context to a file, or save edge chains and/or edge approximations from an Edge Finder result buffer to a CAD (Computer-Aided Design) file.

Syntax

void MedgeSave(

MIL_CONST_TEXT_PTR FileName,	//in
MIL_ID ContextOrResultId,	//in
MIL_INT64 ControlFlag	//in

)

Description

This function saves all the information about the previously allocated Edge Finder context to disk. This information can be reloaded, using MedgeRestore() or MedgeStream(). However, any associated calibration contexts are not saved.

This function also saves calculated edges (edge chains and/or edge approximations) included in a previously calculated Edge Finder result buffer to disk, in a standard DXF format CAD file. Note that edge chains and edge approximations are saved in the DXF file in separate layers.

Note that the Edge Finder context or the calculated edges are saved in real-world units if there is a calibration context associated with them. Otherwise, they are saved in pixel units.

Note that this function reference has not been updated for a MIL system added during a MIL update. Refer to the MIL system's release note to see if there is complementary information.

Parameters

This function is not supported on the selected boards.

Parameters

FileName

Specifies the name and path of the file in which to save the Edge Finder context, or the destination CAD file. For easier use with other Matrox Imaging software products, when saving an Edge Finder context to a file, use the MEF file extension, and when saving calculated edges from an Edge Result buffer to a CAD file, use the DXF file extension. The function internally handles the opening and closing of this file. If this file already exists, it will be overwritten.

This parameter can be set to one of the following values:

For specifying the file name and path
Value	Description
M_INTERACTIVE	[This is only applicable to Windows] Opens the File Save As dialog box from which you can interactively specify the drive, directory, and name of the file.
MIL_TEXT("FileName") ¹	Specifies the drive, directory, and name of the file (for example, "C:\mydirectory\myfile"). To save the file on the remote computer (under Distributed MIL), prefix the specified file name string with "remote:///" (for example, "remote:///C:\mydirectory\myfile"). (summarize) Specifies the drive, directory, and name of the file (for example, "C:\mydirectory\myfile"). (more details...)

¹ If you are passing the value in a variable, don't enclose it in MIL_TEXT().

ContextOrResultId

Specifies either the identifier of the Edge Finder context to save, or the identifier of the Edge Finder result buffer from which to save to a CAD file.

ControlFlag

Specifies whether to save edge chains or edge approximations to the DXF CAD file for Edge Finder result buffers. For Edge Finder contexts, this parameter must be set to M_DEFAULT.

For Edge Finder result buffers, this parameter must at least be set to one of the following values. Note that to save both edge chains and edge approximations, ControlFlag values can be combined (M_CHAIN + M_CHAIN_APPROXIMATION).

For Edge Finder result buffers
Value	Description
M_CHAIN	Specifies that edge chains will be saved.
M_CHAIN_APPROXIMATION	Specifies that edge approximations will be saved.

Compilation information

Header	Include mil.h.
Library	Use mil.lib; miledge.lib.
DLL	Requires mil.dll; miledge.dll.