create_drawing_object_circleT_create_drawing_object_circleCreateDrawingObjectCircleCreateDrawingObjectCirclecreate_drawing_object_circle (算子)
名称
create_drawing_object_circleT_create_drawing_object_circleCreateDrawingObjectCircleCreateDrawingObjectCirclecreate_drawing_object_circle — 创建一个可以交互式修改的圆。
签名
Herror T_create_drawing_object_circle(const Htuple Row, const Htuple Column, const Htuple Radius, Htuple* DrawID)
def create_drawing_object_circle(row: float, column: float, radius: float) -> HHandle
描述
create_drawing_object_circlecreate_drawing_object_circleCreateDrawingObjectCircleCreateDrawingObjectCircleCreateDrawingObjectCirclecreate_drawing_object_circle creates a circular region which can be
interactively modified in a HALCON window by the user. The circle is defined
by the coordinates RowRowRowRowrowrow and ColumnColumnColumnColumncolumncolumn of its center, and
by its RadiusRadiusRadiusRadiusradiusradius. The created circle is returned in the handle
DrawIDDrawIDDrawIDDrawIDdrawIDdraw_id。
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 circle is editable by the user
through interaction within the window.
There are two possible transformations for a circle object: resizing and displacement.
By clicking close to the circular arc you can modify the RadiusRadiusRadiusRadiusradiusradius of
the circle. By clicking on the center, the circle can be dragged
across the HALCON window.
In contrast to the operator draw_circledraw_circleDrawCircleDrawCircleDrawCircledraw_circle, this interaction does not
block the calling thread.
执行信息
- 多线程类型：可重入（与非独占算子并行运行）。
- 多线程作用域：全局（可从任何线程调用）。
- 未采用并行化处理。
此算子返回一个句柄。请注意，即使该句柄被用作特定算子的输入参数，这些算子仍可能改变此句柄类型的实例状态。
参数
RowRowRowRowrowrow (输入控制) circle.center.y → HTuplefloatHTupleHtuple (real) (double) (double) (double)
Row coordinate of the center.
默认值：
100
ColumnColumnColumnColumncolumncolumn (输入控制) circle.center.x → HTuplefloatHTupleHtuple (real) (double) (double) (double)
Column coordinate of the center.
默认值：
100
RadiusRadiusRadiusRadiusradiusradius (输入控制) circle.radius → HTuplefloatHTupleHtuple (real) (double) (double) (double)
Radius of the circle.
默认值：
80
DrawIDDrawIDDrawIDDrawIDdrawIDdraw_id (输出控制) drawing_object → HDrawingObject, HTupleHHandleHTupleHtuple (handle) (IntPtr) (HHandle) (handle)
绘图对象的句柄。
结果
如果参数值正确，算子 create_drawing_object_circlecreate_drawing_object_circleCreateDrawingObjectCircleCreateDrawingObjectCircleCreateDrawingObjectCirclecreate_drawing_object_circle 返回值 2 ( H_MSG_TRUE )。否则将抛出异常。
可能的前趋
open_windowopen_windowOpenWindowOpenWindowOpenWindowopen_window
可能的后继
attach_drawing_object_to_windowattach_drawing_object_to_windowAttachDrawingObjectToWindowAttachDrawingObjectToWindowAttachDrawingObjectToWindowattach_drawing_object_to_window,
get_drawing_object_paramsget_drawing_object_paramsGetDrawingObjectParamsGetDrawingObjectParamsGetDrawingObjectParamsget_drawing_object_params,
get_drawing_object_iconicget_drawing_object_iconicGetDrawingObjectIconicGetDrawingObjectIconicGetDrawingObjectIconicget_drawing_object_iconic
替代
draw_circledraw_circleDrawCircleDrawCircleDrawCircledraw_circle,
draw_regiondraw_regionDrawRegionDrawRegionDrawRegiondraw_region,
create_drawing_object_circle_sectorcreate_drawing_object_circle_sectorCreateDrawingObjectCircleSectorCreateDrawingObjectCircleSectorCreateDrawingObjectCircleSectorcreate_drawing_object_circle_sector,
create_drawing_object_ellipsecreate_drawing_object_ellipseCreateDrawingObjectEllipseCreateDrawingObjectEllipseCreateDrawingObjectEllipsecreate_drawing_object_ellipse,
create_drawing_object_ellipse_sectorcreate_drawing_object_ellipse_sectorCreateDrawingObjectEllipseSectorCreateDrawingObjectEllipseSectorCreateDrawingObjectEllipseSectorcreate_drawing_object_ellipse_sector
另见
create_drawing_object_rectangle1create_drawing_object_rectangle1CreateDrawingObjectRectangle1CreateDrawingObjectRectangle1CreateDrawingObjectRectangle1create_drawing_object_rectangle1,
create_drawing_object_rectangle2create_drawing_object_rectangle2CreateDrawingObjectRectangle2CreateDrawingObjectRectangle2CreateDrawingObjectRectangle2create_drawing_object_rectangle2,
create_drawing_object_ellipsecreate_drawing_object_ellipseCreateDrawingObjectEllipseCreateDrawingObjectEllipseCreateDrawingObjectEllipsecreate_drawing_object_ellipse,
create_drawing_object_circle_sectorcreate_drawing_object_circle_sectorCreateDrawingObjectCircleSectorCreateDrawingObjectCircleSectorCreateDrawingObjectCircleSectorcreate_drawing_object_circle_sector,
create_drawing_object_ellipse_sectorcreate_drawing_object_ellipse_sectorCreateDrawingObjectEllipseSectorCreateDrawingObjectEllipseSectorCreateDrawingObjectEllipseSectorcreate_drawing_object_ellipse_sector,
create_drawing_object_xldcreate_drawing_object_xldCreateDrawingObjectXldCreateDrawingObjectXldCreateDrawingObjectXldcreate_drawing_object_xld
模块
基础