CogPolarUnwrap.GetInputPointFromOutputPoint Method

CogPolarUnwrap GetInputPointFromOutputPoint Method

Cognex VisionPro 9.23

Maps a point in the root space of the output image to the corresponding point in the selected space of the input image.

Namespace: Cognex.VisionPro.ImageProcessing
Assembly: Cognex.VisionPro.ImageProcessing (in Cognex.VisionPro.ImageProcessing.dll) Version: 91.0.0.0

Syntax

C++

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public void GetInputPointFromOutputPoint(
	ICogImage inputImage,
	ICogRegion annularRegion,
	double outputPointX,
	double outputPointY,
	out double inputPointX,
	out double inputPointY
)

public void GetInputPointFromOutputPoint(
	ICogImage inputImage,
	ICogRegion annularRegion,
	double outputPointX,
	double outputPointY,
	out double inputPointX,
	out double inputPointY
)

Public Sub GetInputPointFromOutputPoint ( 
	inputImage As ICogImage,
	annularRegion As ICogRegion,
	outputPointX As Double,
	outputPointY As Double,
	<OutAttribute> ByRef inputPointX As Double,
	<OutAttribute> ByRef inputPointY As Double
)

Public Sub GetInputPointFromOutputPoint ( 
	inputImage As ICogImage,
	annularRegion As ICogRegion,
	outputPointX As Double,
	outputPointY As Double,
	<OutAttribute> ByRef inputPointX As Double,
	<OutAttribute> ByRef inputPointY As Double
)

public:
void GetInputPointFromOutputPoint(
	ICogImage^ inputImage, 
	ICogRegion^ annularRegion, 
	double outputPointX, 
	double outputPointY, 
	[OutAttribute] double% inputPointX, 
	[OutAttribute] double% inputPointY
)

public:
void GetInputPointFromOutputPoint(
	ICogImage^ inputImage, 
	ICogRegion^ annularRegion, 
	double outputPointX, 
	double outputPointY, 
	[OutAttribute] double% inputPointX, 
	[OutAttribute] double% inputPointY
)

Parameters

inputImage: Type: Cognex.VisionPro ICogImage
The input image. Corresponds to the InputImage property.

annularRegion: Type: Cognex.VisionPro ICogRegion
The input region. Corresponds to the Region property.

outputPointX: Type: System Double
The x-coordinate of the mapped point.

outputPointY: Type: System Double
The y-coordinate of the mapped point.

inputPointX: Type: System Double
The x-coordinate of the point to map.

inputPointY: Type: System Double
The y-coordinate of the point to map.

Exceptions

Exception	Condition
NullReferenceException	inputPointX or inputPointY is NULL. (C++ only)
CogOperatorNoInputImageException	inputImage is NULL.
CogImageBadTypeException	inputImage is not an 8-bit image.
CogImageNoPixelsException	inputImage is not allocated.
CogIPPolarUnwrapNullRegionException	annularRegion is NULL.
CogIPPolarUnwrapInvalidRegionException	annularRegion is neither a CogCircularAnnulusSection nor a CogEllipticalAnnulusSection.
CogTransformNotLinearException	The transform from the selected space of the annularRegion to the pixel space of inputImage is not linear.
CogIPPolarUnwrapRegionClippedException	Some of the sampling points require data that is outside the inputImage.
CogImageBadSelectedSpaceNameException	The selected space name of inputImage is not a valid name.
CogImageBadSelectedSpaceNameException	The selected space name of inputImage does not exist within inputImage's space tree.
CogImageBadSelectedSpaceNameException	The selected space name of inputImage is not unique within inputImage's space tree.
CogOperatorInvalidRegionException	The selected space name of annularRegion is not a valid name.
CogOperatorInvalidRegionException	The selected space name of annularRegion does not exist within inputImage's space tree.
CogOperatorInvalidRegionException	The selected space name of annularRegion is not unique within inputImage's space tree.
CogIPPolarUnwrapSamplingXOverflowException	The resulting number of samples in the x-direction is greater than 32767.
CogIPPolarUnwrapSamplingYOverflowException	The resulting number of samples in the y-direction is greater than 32767.

Remarks

Maps a point in the root space of the output image to the corresponding point in the selected space of the input image.

This function maps the points based on the input parameters you supply to the function, not the parameters that you used to configure the object. You can perform a mapping that corresponds to the current state of the object by supplying the object properties as parameters to this function, as shown in the example.

Examples

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Imports Cognex.VisionPro
Imports Cognex.VisionPro.ImageProcessing

Dim UnwrapTool As New CogPolarUnwrapTool

Dim xIn As Integer
Dim yIn As Integer
Dim xOut As Integer
Dim yOut As Integer

UnwrapTool.RunParams.GetInputPointFromOutputPoint (_
    UnwrapTool.InputImage, _
    UnwrapTool.Region, _
    xOut, yOut, _
    xIn, yIn)

Imports Cognex.VisionPro
Imports Cognex.VisionPro.ImageProcessing

Dim UnwrapTool As New CogPolarUnwrapTool

Dim xIn As Integer
Dim yIn As Integer
Dim xOut As Integer
Dim yOut As Integer

UnwrapTool.RunParams.GetInputPointFromOutputPoint (_
    UnwrapTool.InputImage, _
    UnwrapTool.Region, _
    xOut, yOut, _
    xIn, yIn)

C++

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using Cognex.VisionPro;
using Cognex.VisionPro.ImageProcessing;

CogPolarUnwrapTool UnwrapTool = new CogPolarUnwrapTool();
int xIn, yIn, xOut, yOut;

UnwrapTool.RunParams.GetInputPointFromOutputPoint (UnwrapTool.InputImage,
    UnwrapTool.Region,
    xOut, yOut,
    out xIn, out yIn);

using Cognex.VisionPro;
using Cognex.VisionPro.ImageProcessing;

CogPolarUnwrapTool UnwrapTool = new CogPolarUnwrapTool();
int xIn, yIn, xOut, yOut;

UnwrapTool.RunParams.GetInputPointFromOutputPoint (UnwrapTool.InputImage,
    UnwrapTool.Region,
    xOut, yOut,
    out xIn, out yIn);