Operator Reference

HALCON Operator Reference / Legacy / Graphics

• HDevelop
• .NET
• Python
• C++
• C

ClassesClasses | | Operators

slide_imageT_slide_imageSlideImageSlideImageslide_image (Operator)

slide_imageT_slide_imageSlideImageSlideImageslide_image — Interactive output from two window buffers.

Warning

The operator slide_imageslide_imageSlideImageSlideImageslide_image does not work with HDevelop graphics windows. It is only provided for reasons of backward compatibility.

Signature

slide_image( : : WindowHandleSource1, WindowHandleSource2, WindowHandle : )

Herror T_slide_image(const Htuple WindowHandleSource1, const Htuple WindowHandleSource2, const Htuple WindowHandle)

void SlideImage(const HTuple& WindowHandleSource1, const HTuple& WindowHandleSource2, const HTuple& WindowHandle)

void HWindow::SlideImage(const HWindow& WindowHandleSource2, const HWindow& WindowHandle) const

static void HOperatorSet.SlideImage(HTuple windowHandleSource1, HTuple windowHandleSource2, HTuple windowHandle)

void HWindow.SlideImage(HWindow windowHandleSource2, HWindow windowHandle)

def slide_image(window_handle_source_1: HHandle, window_handle_source_2: HHandle, window_handle: HHandle) -> None

Description

slide_imageslide_imageSlideImageSlideImageslide_image divides the window horizontal in two logical areas dependent of the mouse position. The content of the first indicated window is copied in the upper area, the content of the second window is copied in the lower area. If you press the left mouse button you may scroll the delimitation between the two areas (you may move the mouse outside the window, too. In doing so the position of the mouse relative to the window determines the borderline).

Pressing the right mouse button in the window terminates the operator slide_imageslide_imageSlideImageSlideImageslide_image.

A useful application of the operator slide_imageslide_imageSlideImageSlideImageslide_image might be the visualization of the effect of a filtering operation for an image. The output is directed to the currently set window (WindowHandleWindowHandleWindowHandlewindowHandlewindow_handle).

Attention

The three windows must have the same size and have to reside on the same computer.

Execution Information

• Multithreading type: reentrant (runs in parallel with non-exclusive operators).
• Multithreading scope: global (may be called from any thread).
• Processed without parallelization.

Parameters

WindowHandleSource1WindowHandleSource1WindowHandleSource1windowHandleSource1window_handle_source_1 (input_control)  window → HWindow, HTupleHHandleHTupleHtuple (handle) (IntPtr) (HHandle) (handle)

Source window handle of the “upper window”.

WindowHandleSource2WindowHandleSource2WindowHandleSource2windowHandleSource2window_handle_source_2 (input_control)  window → HWindow, HTupleHHandleHTupleHtuple (handle) (IntPtr) (HHandle) (handle)

Source window handle of the “lower window”.

WindowHandleWindowHandleWindowHandlewindowHandlewindow_handle (input_control)  window → HWindow, HTupleHHandleHTupleHtuple (handle) (IntPtr) (HHandle) (handle)

Output window handle.

Example (HDevelop)

read_image (Image, 'fabrik')
sobel_dir (Image, EdgeAmplitude, EdgeDirection, 'sum_abs', 3)
dev_open_window (0, 0, 512, 512, 'black', WindowHandle1)
dev_display (EdgeAmplitude)
dev_open_window (0, 0, 512, 512, 'black', WindowHandle2)
dev_display (EdgeDirection)
dev_open_window (0, 0, 512, 512, 'black', WindowHandle)
slide_image (WindowHandle1, WindowHandle2, WindowHandle)

Example (C)

read_image(&Image,"fabrik");
sobel_amp(Image,&Amp,"sum_abs",3);
open_window(0,0,-1,-1,"root","buffer","",&Buffer1);
disp_image(Amp,Buffer1);
sobel_dir(Image,&Amp,&Dir,"sum_abs",3);
open_window(0,0,-1,-1,"root","buffer","",&Buffer2);
disp_image(Dir,Buffer2);
open_window(0,0,-1,-1,"root","visible","",&WindowHandle);
slide_image(Buffer1,Buffer2,WindowHandle);

Example (HDevelop)

read_image (Image, 'fabrik')
sobel_dir (Image, EdgeAmplitude, EdgeDirection, 'sum_abs', 3)
dev_open_window (0, 0, 512, 512, 'black', WindowHandle1)
dev_display (EdgeAmplitude)
dev_open_window (0, 0, 512, 512, 'black', WindowHandle2)
dev_display (EdgeDirection)
dev_open_window (0, 0, 512, 512, 'black', WindowHandle)
slide_image (WindowHandle1, WindowHandle2, WindowHandle)

Example (HDevelop)

read_image (Image, 'fabrik')
sobel_dir (Image, EdgeAmplitude, EdgeDirection, 'sum_abs', 3)
dev_open_window (0, 0, 512, 512, 'black', WindowHandle1)
dev_display (EdgeAmplitude)
dev_open_window (0, 0, 512, 512, 'black', WindowHandle2)
dev_display (EdgeDirection)
dev_open_window (0, 0, 512, 512, 'black', WindowHandle)
slide_image (WindowHandle1, WindowHandle2, WindowHandle)

Result

If the both windows exist and one of these windows is valid slide_imageslide_imageSlideImageSlideImageslide_image returns 2 ( H_MSG_TRUE) . If necessary an exception is raised.

Possible Predecessors

open_windowopen_windowOpenWindowOpenWindowopen_window

Alternatives

copy_rectanglecopy_rectangleCopyRectangleCopyRectanglecopy_rectangle, get_mpositionget_mpositionGetMpositionGetMpositionget_mposition

See also

open_windowopen_windowOpenWindowOpenWindowopen_window, move_rectanglemove_rectangleMoveRectangleMoveRectanglemove_rectangle

Module

Foundation

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ClassesClasses | | Operators