ILLineResults Interface Reference

This interface holds a collection of line detection results. More...

Inheritance diagram for ILLineResults:

Public Member Functions
void	Draw (HDC hdc, int index, LPVLineDrawFlags drawFlags, double zoomX, double zoomY, double panX, double panY)
void	DrawAll (HDC hdc, LPVLineDrawFlags drawFlags, double zoomX, double zoomY, double panX, double panY)
void	DrawScoreChart (HDC hdc, LPVChartDrawFlags drawFlags, int xGridStep, int yGridStep)
ILLineResult *	Item (int index)
Public Member Functions inherited from ILObjects
int	Count ()
BOOL	Empty ()
ILObject *	ItemObject (int objIndex)
Public Member Functions inherited from ILObject
ILObject *	Copy ()
LPVErrorCode	Load (LString filename)
void	Reset ()
LPVErrorCode	Save (LString filename)
BOOL	Valid ()

Detailed Description

This interface holds a collection of line detection results.

Usually you get the LLineResults object from the ILLineDetector::Detect() as detection result. You can then use this interface to access individual result and draw the results on graphics windows.

Example Code

C++

ILLineResultsPtr lineResults;
LPVErrorCode err = lineDetector->Detect(img, rotRectRoi, &lineResults);
if (err != LPVErrorCode::LPVNoError) return;
int c = lineResults->Count();
for (int i = 0; i < c; ++i) {
    ILLineResultPtr result = lineResults->Item(i);
    // handle each line result
}

C#

LLineResults lineResults;
LPVErrorCode err = lineDetector.Detect(img, rotRectRoi, out lineResults);
if (err != LPVErrorCode.LPVNoError) return;
int c = lineResults.Count();
for (int i = 0; i < c; ++i) {
    LLineResult result = lineResults.Item(i);
    // handle each line result
}

COM

ILLineResultsPtr lineResults;
LPVErrorCode err = lineDetector->Detect(img, rotRectRoi, &lineResults);
if (err != LPVErrorCode::LPVNoError) return;
int c = lineResults->Count();
for (int i = 0; i < c; ++i) {
    ILLineResultPtr result = lineResults->Item(i);
    // handle each line result
}

Member Function Documentation

Draw()

void Draw	(	HDC	hdc,
		int	index,
		LPVLineDrawFlags	drawFlags,
		double	zoomX,
		double	zoomY,
		double	panX,
		double	panY
	)

Draw one line result of given index onto provide device context.

Parameters

[in]	index	Input index, it should be a 0-based number smaller than total count.
[in]	drawFlags	Flags to control the line drawing behavior, see LPVLineDrawFlags for usage.

See also

DrawAll()

Use Draw Functions

Remarks

This function is currently not available on Linux / MacOS platform.

DrawAll()

void DrawAll	(	HDC	hdc,
		LPVLineDrawFlags	drawFlags,
		double	zoomX,
		double	zoomY,
		double	panX,
		double	panY
	)

Draw all line results onto provide device context.

Parameters

[in]

drawFlags

Control the drawing behavior, see LPVLineDrawFlags

See also

Draw()

Use Draw Functions

Remarks

This function is currently not available on Linux / MacOS platform.

DrawScoreChart()

void DrawScoreChart	(	HDC	hdc,
		LPVChartDrawFlags	drawFlags,
		int	xGridStep,
		int	yGridStep
	)

Draw a score chart onto provide device context. It represents the score(y axis) distributions along the region's direction(x axis). It's useful for determining a proper acceptable score.

Parameters

[in]	hdc	Handle to the device context of the destination window or bitmap.
[in]	drawFlags	Flags to control which part of a data chart should be drawn, see LPVChartDrawFlags for usage.
[in]	xGridStep	Specify the step of label on x axis, 0 means we'll determine it on the fly according to the score data.
[in]	yGridStep	Specify the step of label on y axis, 0 means we'll determine it on the fly according to the score data. This function is currently not available on Linux / MacOS platform.

Item()

ILLineResult* Item

(

int

index

)

Fetch one result with given index.

Parameters

[in]

index

Input index, it should be a 0-based number smaller than total count.

Return values

result

Return the line result of given index.