disp_arcT_disp_arcDispArcDispArcdisp_arc (算子)
名称
disp_arcT_disp_arcDispArcDispArcdisp_arc — 在窗口中显示圆弧。
签名
void DispArc(const HTuple& WindowHandle, const HTuple& CenterRow, const HTuple& CenterCol, const HTuple& Angle, const HTuple& BeginRow, const HTuple& BeginCol)
void HWindow::DispArc(const HTuple& CenterRow, const HTuple& CenterCol, const HTuple& Angle, const HTuple& BeginRow, const HTuple& BeginCol) const
void HWindow::DispArc(double CenterRow, double CenterCol, double Angle, Hlong BeginRow, Hlong BeginCol) const
static void HOperatorSet.DispArc(HTuple windowHandle, HTuple centerRow, HTuple centerCol, HTuple angle, HTuple beginRow, HTuple beginCol)
void HWindow.DispArc(HTuple centerRow, HTuple centerCol, HTuple angle, HTuple beginRow, HTuple beginCol)
void HWindow.DispArc(double centerRow, double centerCol, double angle, int beginRow, int beginCol)
def disp_arc(window_handle: HHandle, center_row: Union[int, float], center_col: Union[int, float], angle: Union[int, float], begin_row: MaybeSequence[Union[int, float]], begin_col: MaybeSequence[Union[int, float]]) -> None
描述
disp_arcdisp_arcDispArcDispArcDispArcdisp_arc displays one or several circular arcs in the
output window. An arc is described by its center point
(CenterRowCenterRowCenterRowCenterRowcenterRowcenter_row,CenterColCenterColCenterColCenterColcenterColcenter_col), the angle between start and end
of the arc (AngleAngleAngleAngleangleangle in radians) and the first point of the arc
(BeginRowBeginRowBeginRowBeginRowbeginRowbegin_row,BeginColBeginColBeginColBeginColbeginColbegin_col). The arc is displayed in clockwise
direction. The parameters for output can be determined - as with the output
of regions - with the operators set_colorset_colorSetColorSetColorSetColorset_color, set_grayset_graySetGraySetGraySetGrayset_gray,
set_drawset_drawSetDrawSetDrawSetDrawset_draw, etc. It is possible to draw several arcs with
one call by using tuple parameters. For the use of colors with
several arcs, see set_colorset_colorSetColorSetColorSetColorset_color。
注意
The center point has to be within the window. The radius of the arc has be
at least 2 pixel.
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。
参数
WindowHandleWindowHandleWindowHandleWindowHandlewindowHandlewindow_handle (输入控制) window → HWindow, HTupleHHandleHTupleHtuple (handle) (IntPtr) (HHandle) (handle)
窗口句柄。
CenterRowCenterRowCenterRowCenterRowcenterRowcenter_row (输入控制) arc.center.y → HTupleUnion[int, float]HTupleHtuple (real / integer) (double / int / long) (double / Hlong) (double / Hlong)
Row coordinate of center point.
默认值：
64
建议值：
0, 64, 128, 256
值范围：
0
≤
CenterRow
CenterRow
CenterRow
CenterRow
centerRow
center_row
≤
511 (lin)
最小增量：
1
建议增量：
1
CenterColCenterColCenterColCenterColcenterColcenter_col (输入控制) arc.center.x → HTupleUnion[int, float]HTupleHtuple (real / integer) (double / int / long) (double / Hlong) (double / Hlong)
Column coordinate of center point.
默认值：
64
建议值：
0, 64, 128, 256
值范围：
0
≤
CenterCol
CenterCol
CenterCol
CenterCol
centerCol
center_col
≤
511 (lin)
最小增量：
1
建议增量：
1
AngleAngleAngleAngleangleangle (输入控制) arc.angle.rad → HTupleUnion[int, float]HTupleHtuple (real / integer) (double / int / long) (double / Hlong) (double / Hlong)
Angle between start and end of the arc (in radians).
默认值：
3.1415926
建议值：
0.0, 0.785398, 1.570796, 3.1415926, 6.283185
值范围：
0.0
≤
Angle
Angle
Angle
Angle
angle
angle
≤
6.283185 (lin)
最小增量：
0.01
建议增量：
0.1
限制：
Angle > 0.0
BeginRowBeginRowBeginRowBeginRowbeginRowbegin_row (输入控制) arc.begin.y(-array) → HTupleMaybeSequence[Union[int, float]]HTupleHtuple (integer / real) (int / long / double) (Hlong / double) (Hlong / double)
Row coordinate of the start of the arc.
默认值：
32
建议值：
0, 64, 128, 256
值范围：
0
≤
BeginRow
BeginRow
BeginRow
BeginRow
beginRow
begin_row
≤
511 (lin)
最小增量：
1
建议增量：
1
BeginColBeginColBeginColBeginColbeginColbegin_col (输入控制) arc.begin.x(-array) → HTupleMaybeSequence[Union[int, float]]HTupleHtuple (integer / real) (int / long / double) (Hlong / double) (Hlong / double)
Column coordinate of the start of the arc.
默认值：
32
建议值：
0, 64, 128, 256
值范围：
0
≤
BeginCol
BeginCol
BeginCol
BeginCol
beginCol
begin_col
≤
511 (lin)
最小增量：
1
建议增量：
1
示例（HDevelop）
open_window(0,0,-1,-1,'root','visible','',WindowHandle)
set_draw(WindowHandle,'fill')
set_color(WindowHandle,'white')
Row := 100
Column := 100
disp_arc(WindowHandle,Row,Column,3.14,Row+10,Column+10)
close_window(WindowHandle)
结果
disp_arcdisp_arcDispArcDispArcDispArcdisp_arc 返回 2 ( H_MSG_TRUE )。
可能的前趋
open_windowopen_windowOpenWindowOpenWindowOpenWindowopen_window,
set_drawset_drawSetDrawSetDrawSetDrawset_draw,
set_colorset_colorSetColorSetColorSetColorset_color,
set_coloredset_coloredSetColoredSetColoredSetColoredset_colored,
set_line_widthset_line_widthSetLineWidthSetLineWidthSetLineWidthset_line_width,
set_rgbset_rgbSetRgbSetRgbSetRgbset_rgb,
set_hsiset_hsiSetHsiSetHsiSetHsiset_hsi
替代
disp_circledisp_circleDispCircleDispCircleDispCircledisp_circle,
disp_ellipsedisp_ellipseDispEllipseDispEllipseDispEllipsedisp_ellipse,
disp_regiondisp_regionDispRegionDispRegionDispRegiondisp_region,
gen_circlegen_circleGenCircleGenCircleGenCirclegen_circle,
gen_ellipsegen_ellipseGenEllipseGenEllipseGenEllipsegen_ellipse
另见
open_windowopen_windowOpenWindowOpenWindowOpenWindowopen_window,
set_colorset_colorSetColorSetColorSetColorset_color,
set_drawset_drawSetDrawSetDrawSetDrawset_draw,
set_rgbset_rgbSetRgbSetRgbSetRgbset_rgb,
set_hsiset_hsiSetHsiSetHsiSetHsiset_hsi
模块
基础