create_drawing_object_lineT_create_drawing_object_lineCreateDrawingObjectLineCreateDrawingObjectLine (Operator)
Name
create_drawing_object_lineT_create_drawing_object_lineCreateDrawingObjectLineCreateDrawingObjectLine — Create a line which can be modified interactively.
Signature
Description
create_drawing_object_linecreate_drawing_object_lineCreateDrawingObjectLineCreateDrawingObjectLineCreateDrawingObjectLine creates a line which can be modified interactively
in a HALCON window by the user. The line is defined by the coordinates
of the first line point, Row1Row1Row1Row1row1 and Column1Column1Column1Column1column1, and the
second line point, Row2Row2Row2Row2row2 and Column2Column2Column2Column2column2.
These parameters can be queried any time with get_drawing_object_paramsget_drawing_object_paramsGetDrawingObjectParamsGetDrawingObjectParamsGetDrawingObjectParams,
as well as its corresponding HALCON object with get_drawing_object_iconicget_drawing_object_iconicGetDrawingObjectIconicGetDrawingObjectIconicGetDrawingObjectIconic.
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_paramsSetDrawingObjectParamsSetDrawingObjectParamsSetDrawingObjectParams 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_windowAttachDrawingObjectToWindowAttachDrawingObjectToWindowAttachDrawingObjectToWindow for further details.
Once attached, the line is editable by the user through interaction
with the window.
There are two possible transformations for a line object: resizing and
displacement.
A line point can be moved by dragging on the point handle. The whole
line can be moved by dragging the center of the line.
In contrast to the operator draw_linedraw_lineDrawLineDrawLineDrawLine, 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
Row1Row1Row1Row1row1 (input_control) line.begin.y → HTupleHTupleHtuple (real) (double) (double) (double)
Row index of the first line point.
Default value: 100
Column1Column1Column1Column1column1 (input_control) line.begin.x → HTupleHTupleHtuple (real) (double) (double) (double)
Column index of the first line point.
Default value: 100
Row2Row2Row2Row2row2 (input_control) line.end.y → HTupleHTupleHtuple (real) (double) (double) (double)
Row index of the second line point.
Default value: 200
Column2Column2Column2Column2column2 (input_control) line.end.x → HTupleHTupleHtuple (real) (double) (double) (double)
Column index of the second line point.
Default value: 200
DrawIDDrawIDDrawIDDrawIDdrawID (output_control) drawing_object → HDrawingObject, HTupleHTupleHtuple (handle) (IntPtr) (HHandle) (handle)
Handle of the drawing object.
Result
If the parameter values are correct the operator
create_drawing_object_circle_sectorcreate_drawing_object_circle_sectorCreateDrawingObjectCircleSectorCreateDrawingObjectCircleSectorCreateDrawingObjectCircleSector returns the value 2 (H_MSG_TRUE).
Otherwise an exception is raised.
Possible Predecessors
open_windowopen_windowOpenWindowOpenWindowOpenWindow
Possible Successors
attach_drawing_object_to_windowattach_drawing_object_to_windowAttachDrawingObjectToWindowAttachDrawingObjectToWindowAttachDrawingObjectToWindow,
get_drawing_object_paramsget_drawing_object_paramsGetDrawingObjectParamsGetDrawingObjectParamsGetDrawingObjectParams,
get_drawing_object_iconicget_drawing_object_iconicGetDrawingObjectIconicGetDrawingObjectIconicGetDrawingObjectIconic
Alternatives
draw_linedraw_lineDrawLineDrawLineDrawLine,
draw_line_moddraw_line_modDrawLineModDrawLineModDrawLineMod,
create_drawing_object_xldcreate_drawing_object_xldCreateDrawingObjectXldCreateDrawingObjectXldCreateDrawingObjectXld
See also
create_drawing_object_rectangle1create_drawing_object_rectangle1CreateDrawingObjectRectangle1CreateDrawingObjectRectangle1CreateDrawingObjectRectangle1,
create_drawing_object_rectangle2create_drawing_object_rectangle2CreateDrawingObjectRectangle2CreateDrawingObjectRectangle2CreateDrawingObjectRectangle2,
create_drawing_object_ellipsecreate_drawing_object_ellipseCreateDrawingObjectEllipseCreateDrawingObjectEllipseCreateDrawingObjectEllipse,
create_drawing_object_circle_sectorcreate_drawing_object_circle_sectorCreateDrawingObjectCircleSectorCreateDrawingObjectCircleSectorCreateDrawingObjectCircleSector,
create_drawing_object_ellipse_sectorcreate_drawing_object_ellipse_sectorCreateDrawingObjectEllipseSectorCreateDrawingObjectEllipseSectorCreateDrawingObjectEllipseSector,
create_drawing_object_xldcreate_drawing_object_xldCreateDrawingObjectXldCreateDrawingObjectXldCreateDrawingObjectXld
Module
Foundation