Name
gen_ellipsegen_ellipseGenEllipseGenEllipse — Create an ellipse.
Herror gen_ellipse(Hobject* Ellipse, double Row, double Column, double Phi, double Radius1, double Radius2)
Herror T_gen_ellipse(Hobject* Ellipse, const Htuple Row, const Htuple Column, const Htuple Phi, const Htuple Radius1, const Htuple Radius2)
void GenEllipse(HObject* Ellipse, const HTuple& Row, const HTuple& Column, const HTuple& Phi, const HTuple& Radius1, const HTuple& Radius2)
void HRegion::GenEllipse(const HTuple& Row, const HTuple& Column, const HTuple& Phi, const HTuple& Radius1, const HTuple& Radius2)
void HRegion::GenEllipse(double Row, double Column, double Phi, double Radius1, double Radius2)
static void HOperatorSet.GenEllipse(out HObject ellipse, HTuple row, HTuple column, HTuple phi, HTuple radius1, HTuple radius2)
void HRegion.GenEllipse(HTuple row, HTuple column, HTuple phi, HTuple radius1, HTuple radius2)
void HRegion.GenEllipse(double row, double column, double phi, double radius1, double radius2)
The operator gen_ellipsegen_ellipseGenEllipseGenEllipseGenEllipse generates one or more ellipses with the
center
(RowRowRowRowrow, ColumnColumnColumnColumncolumn), the orientation PhiPhiPhiPhiphi
and the half-radii Radius1Radius1Radius1Radius1radius1 and Radius2Radius2Radius2Radius2radius2.
The angle is indicated in arc measure according to the x axis
in mathematically positive direction.
More than one region can be created by
passing tuples of parameter values.
The center must be located within the image coordinates.
The coordinate system runs from (0,0) (upper left corner) to
(Width-1,Height-1). See get_systemget_systemGetSystemGetSystemGetSystem
and reset_obj_dbreset_obj_dbResetObjDbResetObjDbResetObjDb in this context.
If the ellipse reaches beyond the edge of the image it is clipped
to the current image format according to the value of
the system flag 'clip_region' (set_systemset_systemSetSystemSetSystemSetSystem).
- Multithreading type: reentrant (runs in parallel with non-exclusive operators).
- Multithreading scope: global (may be called from any thread).
- Processed without parallelization.
RowRowRowRowrow (input_control) ellipse.center.y(-array) → HTupleHTupleHtuple (real / integer) (double / int / long) (double / Hlong) (double / Hlong)
Line index of center.
Default value: 200.0
Suggested values: 0.0, 10.0, 20.0, 50.0, 100.0, 256.0, 300.0, 400.0
Typical range of values: 1.0
≤
Row
Row
Row
Row
row
≤
1024.0 (lin)
Minimum increment: 1.0
Recommended increment: 10.0
Column index of center.
Default value: 200.0
Suggested values: 0.0, 10.0, 20.0, 50.0, 100.0, 256.0, 300.0, 400.0
Typical range of values: 1.0
≤
Column
Column
Column
Column
column
≤
1024.0 (lin)
Minimum increment: 1.0
Recommended increment: 10.0
PhiPhiPhiPhiphi (input_control) ellipse.angle.rad(-array) → HTupleHTupleHtuple (real / integer) (double / int / long) (double / Hlong) (double / Hlong)
Orientation of the longer radius (Radius1).
Default value: 0.0
Suggested values: -1.178097, -0.785398, -0.392699, 0.0, 0.392699, 0.785398, 1.178097
Typical range of values: -1.178097
≤
Phi
Phi
Phi
Phi
phi
≤
1.178097 (lin)
Longer radius.
Default value: 100.0
Suggested values: 2.0, 5.0, 10.0, 20.0, 50.0, 100.0, 256.0, 300.0, 400.0
Typical range of values: 1.0
≤
Radius1
Radius1
Radius1
Radius1
radius1
≤
1024.0 (lin)
Minimum increment: 1.0
Recommended increment: 10.0
Restriction: Radius1 > 0
Shorter radius.
Default value: 60.0
Suggested values: 1.0, 2.0, 4.0, 5.0, 10.0, 20.0, 50.0, 100.0, 256.0, 300.0, 400.0
Typical range of values: 1.0
≤
Radius2
Radius2
Radius2
Radius2
radius2
≤
1024.0 (lin)
Minimum increment: 1.0
Recommended increment: 10.0
Restriction: Radius2 > 0 && Radius2 <= Radius1
read_image (Image, 'fabrik')
gen_ellipse (Ellipse, 200, 200, rad(10), 160, 90)
reduce_domain (Image, Ellipse, ImageReduced)
dev_clear_window ()
dev_display (ImageReduced)
open_window(0,0,-1,-1,"root","visible","",&WindowHandle);
set_insert(WindowHandle,"xor");
do {
get_mbutton(WindowHandle,&Row,&Column,&Button);
gen_ellipse(&Ellipse,(double)Row,(double)Column,Column / 300.0,
(Row % 100)+1.0,(Column % 50) + 1.0);
disp_region(Ellipse,WindowHandle);
} while(Button != 1);
read_image (Image, 'fabrik')
gen_ellipse (Ellipse, 200, 200, rad(10), 160, 90)
reduce_domain (Image, Ellipse, ImageReduced)
dev_clear_window ()
dev_display (ImageReduced)
read_image (Image, 'fabrik')
gen_ellipse (Ellipse, 200, 200, rad(10), 160, 90)
reduce_domain (Image, Ellipse, ImageReduced)
dev_clear_window ()
dev_display (ImageReduced)
read_image (Image, 'fabrik')
gen_ellipse (Ellipse, 200, 200, rad(10), 160, 90)
reduce_domain (Image, Ellipse, ImageReduced)
dev_clear_window ()
dev_display (ImageReduced)
Runtime complexity: O(Radius1Radius1Radius1Radius1radius1 * 2)
Storage complexity (byte): O(Radius1Radius1Radius1Radius1radius1 * 8)
If the parameter values are correct, the operator gen_ellipsegen_ellipseGenEllipseGenEllipseGenEllipse
returns the value 2 (H_MSG_TRUE). Otherwise an exception is raised.
The clipping according to the current image format is set via the
operator set_system('clip_region',<'true'/'false'>)set_system("clip_region",<"true"/"false">)SetSystem("clip_region",<"true"/"false">)SetSystem("clip_region",<"true"/"false">)SetSystem("clip_region",<"true"/"false">).
paint_regionpaint_regionPaintRegionPaintRegionPaintRegion,
reduce_domainreduce_domainReduceDomainReduceDomainReduceDomain
gen_circlegen_circleGenCircleGenCircleGenCircle,
gen_region_polygon_filledgen_region_polygon_filledGenRegionPolygonFilledGenRegionPolygonFilledGenRegionPolygonFilled,
draw_ellipsedraw_ellipseDrawEllipseDrawEllipseDrawEllipse
disp_ellipsedisp_ellipseDispEllipseDispEllipseDispEllipse,
set_shapeset_shapeSetShapeSetShapeSetShape,
smallest_circlesmallest_circleSmallestCircleSmallestCircleSmallestCircle,
reduce_domainreduce_domainReduceDomainReduceDomainReduceDomain
Foundation