create_drawing_object_xldT_create_drawing_object_xldCreateDrawingObjectXldCreateDrawingObjectXldcreate_drawing_object_xld (Operator)

Name

create_drawing_object_xldT_create_drawing_object_xldCreateDrawingObjectXldCreateDrawingObjectXldcreate_drawing_object_xld — Create a XLD contour which can be modified interactively.

Signature

create_drawing_object_xld( : : Row, Column : DrawID)

Description

create_drawing_object_xldcreate_drawing_object_xldCreateDrawingObjectXldCreateDrawingObjectXldCreateDrawingObjectXldcreate_drawing_object_xld creates an XLD contour which can be modified interactively in a HALCON window by the user. The contour is defined by the coordinates RowRowRowRowrowrow and ColumnColumnColumnColumncolumncolumn of its points.

These parameters can be queried any time with get_drawing_object_paramsget_drawing_object_paramsGetDrawingObjectParamsGetDrawingObjectParamsGetDrawingObjectParamsget_drawing_object_params, as well as its corresponding HALCON object with get_drawing_object_iconicget_drawing_object_iconicGetDrawingObjectIconicGetDrawingObjectIconicGetDrawingObjectIconicget_drawing_object_iconic.

In addition to those parameters, every drawing object has a number of parameters which determine the appearance of the object in the HALCON window. See set_drawing_object_paramsset_drawing_object_paramsSetDrawingObjectParamsSetDrawingObjectParamsSetDrawingObjectParamsset_drawing_object_params for details on the number and meaning of those parameters.

In order to enable the interactive modification with the drawing object, the object must be attached to an existing window. See attach_drawing_object_to_windowattach_drawing_object_to_windowAttachDrawingObjectToWindowAttachDrawingObjectToWindowAttachDrawingObjectToWindowattach_drawing_object_to_window for further details. Once attached, the contour is editable by the user through interaction with the window. Further points can be added by left clicking on the window. When clicking the contour segment between two consecutive points, a new point is added between those points. Each contour point can be moved by dragging its point handle. A single contour point can be deleted by dragging it over one of the neighboring contour points directly connected to it. The contour can be closed by moving the last point onto the first contour point. The contour can be moved as a whole by dragging it by the handle in the center. In addition, it is possible to assign a new contour to a drawing object with set_drawing_object_xldset_drawing_object_xldSetDrawingObjectXldSetDrawingObjectXldSetDrawingObjectXldset_drawing_object_xld.

In contrast to the operator draw_xlddraw_xldDrawXldDrawXldDrawXlddraw_xld, this interaction does not block the calling thread.

Execution Information

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

This operator returns a handle. Note that the state of an instance of this handle type may be changed by specific operators even though the handle is used as an input parameter by those operators.

Parameters

RowRowRowRowrowrow (input_control) coordinates.y-array → (real / integer)

Row coordinates of the polygon.

Default value: [100,200,200,100]

Suggested values: 0, 10, 20, 50, 100, 200, 500

ColumnColumnColumnColumncolumncolumn (input_control) coordinates.x-array → (real / integer)

Column coordinates of the polygon.

Default value: [100,100,200,200]

Suggested values: 0, 10, 20, 50, 100, 200, 500

DrawIDDrawIDDrawIDDrawIDdrawIDdraw_id (output_control) drawing_object → (handle)

Handle of the drawing object.

Result

If the parameter values are correct the operator create_drawing_object_xldcreate_drawing_object_xldCreateDrawingObjectXldCreateDrawingObjectXldCreateDrawingObjectXldcreate_drawing_object_xld returns the value TRUE. Otherwise an exception is raised.