draw_nurbs_interp_modT_draw_nurbs_interp_modDrawNurbsInterpModDrawNurbsInterpModdraw_nurbs_interp_mod (Operator)
Name
draw_nurbs_interp_modT_draw_nurbs_interp_modDrawNurbsInterpModDrawNurbsInterpModdraw_nurbs_interp_mod — Interactive modification of a NURBS curve using interpolation.
Warning
This operator does not work in an HDevelop graphics window opened with
dev_open_window.
Signature
draw_nurbs_interp_mod( : ContOut : WindowHandle, Rotate, Move, Scale, KeepRatio, Edit, Degree, RowsIn, ColsIn, TangentsIn : ControlRows, ControlCols, Knots, Rows, Cols, Tangents)
Herror T_draw_nurbs_interp_mod(Hobject* ContOut, const Htuple WindowHandle, const Htuple Rotate, const Htuple Move, const Htuple Scale, const Htuple KeepRatio, const Htuple Edit, const Htuple Degree, const Htuple RowsIn, const Htuple ColsIn, const Htuple TangentsIn, Htuple* ControlRows, Htuple* ControlCols, Htuple* Knots, Htuple* Rows, Htuple* Cols, Htuple* Tangents)
void DrawNurbsInterpMod(HObject* ContOut, const HTuple& WindowHandle, const HTuple& Rotate, const HTuple& Move, const HTuple& Scale, const HTuple& KeepRatio, const HTuple& Edit, const HTuple& Degree, const HTuple& RowsIn, const HTuple& ColsIn, const HTuple& TangentsIn, HTuple* ControlRows, HTuple* ControlCols, HTuple* Knots, HTuple* Rows, HTuple* Cols, HTuple* Tangents)
void HXLDCont::DrawNurbsInterpMod(const HWindow& WindowHandle, const HString& Rotate, const HString& Move, const HString& Scale, const HString& KeepRatio, const HString& Edit, Hlong Degree, const HTuple& RowsIn, const HTuple& ColsIn, const HTuple& TangentsIn, HTuple* ControlRows, HTuple* ControlCols, HTuple* Knots, HTuple* Rows, HTuple* Cols, HTuple* Tangents)
void HXLDCont::DrawNurbsInterpMod(const HWindow& WindowHandle, const char* Rotate, const char* Move, const char* Scale, const char* KeepRatio, const char* Edit, Hlong Degree, const HTuple& RowsIn, const HTuple& ColsIn, const HTuple& TangentsIn, HTuple* ControlRows, HTuple* ControlCols, HTuple* Knots, HTuple* Rows, HTuple* Cols, HTuple* Tangents)
void HXLDCont::DrawNurbsInterpMod(const HWindow& WindowHandle, const wchar_t* Rotate, const wchar_t* Move, const wchar_t* Scale, const wchar_t* KeepRatio, const wchar_t* Edit, Hlong Degree, const HTuple& RowsIn, const HTuple& ColsIn, const HTuple& TangentsIn, HTuple* ControlRows, HTuple* ControlCols, HTuple* Knots, HTuple* Rows, HTuple* Cols, HTuple* Tangents)
(
Windows only)
HXLDCont HWindow::DrawNurbsInterpMod(const HString& Rotate, const HString& Move, const HString& Scale, const HString& KeepRatio, const HString& Edit, Hlong Degree, const HTuple& RowsIn, const HTuple& ColsIn, const HTuple& TangentsIn, HTuple* ControlRows, HTuple* ControlCols, HTuple* Knots, HTuple* Rows, HTuple* Cols, HTuple* Tangents) const
HXLDCont HWindow::DrawNurbsInterpMod(const char* Rotate, const char* Move, const char* Scale, const char* KeepRatio, const char* Edit, Hlong Degree, const HTuple& RowsIn, const HTuple& ColsIn, const HTuple& TangentsIn, HTuple* ControlRows, HTuple* ControlCols, HTuple* Knots, HTuple* Rows, HTuple* Cols, HTuple* Tangents) const
HXLDCont HWindow::DrawNurbsInterpMod(const wchar_t* Rotate, const wchar_t* Move, const wchar_t* Scale, const wchar_t* KeepRatio, const wchar_t* Edit, Hlong Degree, const HTuple& RowsIn, const HTuple& ColsIn, const HTuple& TangentsIn, HTuple* ControlRows, HTuple* ControlCols, HTuple* Knots, HTuple* Rows, HTuple* Cols, HTuple* Tangents) const
(
Windows only)
static void HOperatorSet.DrawNurbsInterpMod(out HObject contOut, HTuple windowHandle, HTuple rotate, HTuple move, HTuple scale, HTuple keepRatio, HTuple edit, HTuple degree, HTuple rowsIn, HTuple colsIn, HTuple tangentsIn, out HTuple controlRows, out HTuple controlCols, out HTuple knots, out HTuple rows, out HTuple cols, out HTuple tangents)
void HXLDCont.DrawNurbsInterpMod(HWindow windowHandle, string rotate, string move, string scale, string keepRatio, string edit, int degree, HTuple rowsIn, HTuple colsIn, HTuple tangentsIn, out HTuple controlRows, out HTuple controlCols, out HTuple knots, out HTuple rows, out HTuple cols, out HTuple tangents)
HXLDCont HWindow.DrawNurbsInterpMod(string rotate, string move, string scale, string keepRatio, string edit, int degree, HTuple rowsIn, HTuple colsIn, HTuple tangentsIn, out HTuple controlRows, out HTuple controlCols, out HTuple knots, out HTuple rows, out HTuple cols, out HTuple tangents)
def draw_nurbs_interp_mod(window_handle: HHandle, rotate: str, move: str, scale: str, keep_ratio: str, edit: str, degree: int, rows_in: Sequence[float], cols_in: Sequence[float], tangents_in: Sequence[float]) -> Tuple[HObject, Sequence[float], Sequence[float], Sequence[float], Sequence[float], Sequence[float], Sequence[float]]
Description
draw_nurbs_interp_moddraw_nurbs_interp_modDrawNurbsInterpModDrawNurbsInterpModdraw_nurbs_interp_mod returns the contour ContOutContOutContOutcontOutcont_out of a
NURBS curve of degree DegreeDegreeDegreedegreedegree, which has been modified
interactively by the user in the window WindowHandleWindowHandleWindowHandlewindowHandlewindow_handle.
In addition to ContOutContOutContOutcontOutcont_out the control information of
the curve (ControlRowsControlRowsControlRowscontrolRowscontrol_rows, ControlColsControlColsControlColscontrolColscontrol_cols, and KnotsKnotsKnotsknotsknots),
the interpolation points (RowsRowsRowsrowsrows, ColsColsColscolscols) specified by the
user and the tangents at the first and the last point (TangentsTangentsTangentstangentstangents)
are returned. TangentsTangentsTangentstangentstangents consists of four values. The first two
values correspond to the y (row) and the x (column) value of the tangent at
the start of the curve and the second two values to the tangent at the end
of the curve, respectively.
The weight vector is not returned because it consists of
equal entries. As a consequence one can use 'auto'"auto""auto""auto""auto" as weight vector,
if the control information is used in a subsequent call to the operator
gen_contour_nurbs_xldgen_contour_nurbs_xldGenContourNurbsXldGenContourNurbsXldgen_contour_nurbs_xld. For more information on NURBS see the
documentation of gen_contour_nurbs_xldgen_contour_nurbs_xldGenContourNurbsXldGenContourNurbsXldgen_contour_nurbs_xld.
The input curve is specified by the interpolation points (RowsInRowsInRowsInrowsInrows_in,
ColsInColsInColsIncolsIncols_in), its degree DegreeDegreeDegreedegreedegree and the tangents
TangentsInTangentsInTangentsIntangentsIntangents_in, such that draw_nurbs_interp_moddraw_nurbs_interp_modDrawNurbsInterpModDrawNurbsInterpModdraw_nurbs_interp_mod can be applied
to the output data of draw_nurbs_interpdraw_nurbs_interpDrawNurbsInterpDrawNurbsInterpdraw_nurbs_interp.
You can modify the curve in two ways: by editing the interpolation points,
e.g., by inserting or moving points, or by transforming the curve
as a whole, e.g., by rotating moving or scaling it. Note that you can only
edit the curve if EditEditEditeditedit is set to 'true'"true""true""true""true".
Similarly, you can only rotate, move or scale it if RotateRotateRotaterotaterotate,
MoveMoveMovemovemove, and ScaleScaleScalescalescale, respectively, are set to 'true'"true""true""true""true".
draw_nurbs_interp_moddraw_nurbs_interp_modDrawNurbsInterpModDrawNurbsInterpModdraw_nurbs_interp_mod starts in the transformation mode. In this
mode, the curve is displayed together with 3 symbols: a cross in the middle
and an arrow to the right if RotateRotateRotaterotaterotate is set to 'true'"true""true""true""true", and a
double-headed arrow to the upper right if ScaleScaleScalescalescale is set to
'true'"true""true""true""true".
To switch into the edit mode, press the Shift key; by pressing it again,
you can switch back into the transformation mode.
Transformation Mode
In this mode a NURBS curve can be rotated, moved and scaled, as long as the
respective parameter RotateRotateRotaterotaterotate, MoveMoveMovemovemove and ScaleScaleScalescalescale
are set to 'true'"true""true""true""true". The NURBS curve is displayed along with a cross in
its center, an arrow pointing to the right (if RotateRotateRotaterotaterotate is set to
'true'"true""true""true""true"), and a double arrow (if ScaleScaleScalescalescale is set to
'true'"true""true""true""true").
-
To move the curve, click with the left mouse button on the cross
in the center and then drag it to the new position, i.e., keep the
mouse button pressed while moving the mouse.
-
To rotate it, click with the left mouse button on the arrow and
then drag it, till the curve has the right direction.
-
Scaling is achieved by dragging the double arrow. To keep the
ratio, the parameter KeepRatioKeepRatioKeepRatiokeepRatiokeep_ratio has to be set to
'true'"true""true""true""true".
Edit Mode
In this mode, the curve is displayed together with its interpolation
points and the start and end tangent.
Start and end point are marked by an additional square. You can
perform the following modifications:
-
To append new points, click with the left mouse button in the window
and a new point is added at this position.
-
You can delete the point appended last by pressing the Ctrl key.
-
To move a point, drag it with the mouse.
-
To insert a point on the curve, click on the desired
position on the curve.
-
To close respectively open the curve, click on the first or on
the last point.
Pressing the right mouse button terminates the procedure.
The appearance of the curve while drawing is determined by the line width,
size and color set via the operators set_colorset_colorSetColorSetColorset_color, set_coloredset_coloredSetColoredSetColoredset_colored,
set_line_widthset_line_widthSetLineWidthSetLineWidthset_line_width, and set_line_styleset_line_styleSetLineStyleSetLineStyleset_line_style. The tangents and
all handles are displayed in the second color set by set_colorset_colorSetColorSetColorset_color or
set_coloredset_coloredSetColoredSetColoredset_colored. Their line width is fixed to 1 and their line style is
fixed to a drawn-through line.
Attention
In contrast to draw_nurbsdraw_nurbsDrawNurbsDrawNurbsdraw_nurbs, each point specified by the user
influences the whole curve. Thus, if one point is moved, the whole curve can
and will change. To minimize this effects, it is recommended to use a small
degree (3-5) and to place the points such that they are approximately equally
spaced. In general, uneven degrees will perform slightly better than even
degrees.
Execution Information
- Multithreading type: reentrant (runs in parallel with non-exclusive operators).
- Multithreading scope: global (may be called from any thread).
- Processed without parallelization.
Parameters
ContOutContOutContOutcontOutcont_out (output_object) xld_cont → objectHXLDContHObjectHObjectHobject *
Contour of the modified curve.
WindowHandleWindowHandleWindowHandlewindowHandlewindow_handle (input_control) window → HWindow, HTupleHHandleHTupleHtuple (handle) (IntPtr) (HHandle) (handle)
Window handle.
RotateRotateRotaterotaterotate (input_control) string → HTuplestrHTupleHtuple (string) (string) (HString) (char*)
Enable rotation?
Default:
'true'
"true"
"true"
"true"
"true"
List of values:
'false'"false""false""false""false", 'true'"true""true""true""true"
MoveMoveMovemovemove (input_control) string → HTuplestrHTupleHtuple (string) (string) (HString) (char*)
Enable moving?
Default:
'true'
"true"
"true"
"true"
"true"
List of values:
'false'"false""false""false""false", 'true'"true""true""true""true"
ScaleScaleScalescalescale (input_control) string → HTuplestrHTupleHtuple (string) (string) (HString) (char*)
Enable scaling?
Default:
'true'
"true"
"true"
"true"
"true"
List of values:
'false'"false""false""false""false", 'true'"true""true""true""true"
KeepRatioKeepRatioKeepRatiokeepRatiokeep_ratio (input_control) string → HTuplestrHTupleHtuple (string) (string) (HString) (char*)
Keep ratio while scaling?
Default:
'true'
"true"
"true"
"true"
"true"
List of values:
'false'"false""false""false""false", 'true'"true""true""true""true"
EditEditEditeditedit (input_control) string → HTuplestrHTupleHtuple (string) (string) (HString) (char*)
Enable editing?
Default:
'true'
"true"
"true"
"true"
"true"
List of values:
'false'"false""false""false""false", 'true'"true""true""true""true"
DegreeDegreeDegreedegreedegree (input_control) integer → HTupleintHTupleHtuple (integer) (int / long) (Hlong) (Hlong)
The degree p of the NURBS curve.
Reasonable values are 3 to 5.
Default:
3
Suggested values:
2, 3, 4, 5
Restriction:
Degree >= 2 && Degree <= 9
RowsInRowsInRowsInrowsInrows_in (input_control) coordinates.y-array → HTupleSequence[float]HTupleHtuple (real) (double) (double) (double)
Row coordinates of the input interpolation points.
ColsInColsInColsIncolsIncols_in (input_control) coordinates.x-array → HTupleSequence[float]HTupleHtuple (real) (double) (double) (double)
Column coordinates of the input interpolation points.
TangentsInTangentsInTangentsIntangentsIntangents_in (input_control) real-array → HTupleSequence[float]HTupleHtuple (real) (double) (double) (double)
Input tangents.
ControlRowsControlRowsControlRowscontrolRowscontrol_rows (output_control) coordinates.y-array → HTupleSequence[float]HTupleHtuple (real) (double) (double) (double)
Row coordinates of the control polygon.
ControlColsControlColsControlColscontrolColscontrol_cols (output_control) coordinates.x-array → HTupleSequence[float]HTupleHtuple (real) (double) (double) (double)
Column coordinates of the control polygon.
KnotsKnotsKnotsknotsknots (output_control) real-array → HTupleSequence[float]HTupleHtuple (real) (double) (double) (double)
Knot vector.
RowsRowsRowsrowsrows (output_control) coordinates.y-array → HTupleSequence[float]HTupleHtuple (real) (double) (double) (double)
Row coordinates of the points specified by the user.
ColsColsColscolscols (output_control) coordinates.x-array → HTupleSequence[float]HTupleHtuple (real) (double) (double) (double)
Column coordinates of the points specified by the user.
TangentsTangentsTangentstangentstangents (output_control) real-array → HTupleSequence[float]HTupleHtuple (real) (double) (double) (double)
Tangents specified by the user.
Result
draw_nurbs_interp_moddraw_nurbs_interp_modDrawNurbsInterpModDrawNurbsInterpModdraw_nurbs_interp_mod returns 2 (
H_MSG_TRUE)
, if the window is valid.
If necessary, an exception is raised.
Possible Predecessors
open_windowopen_windowOpenWindowOpenWindowopen_window
Possible Successors
set_coloredset_coloredSetColoredSetColoredset_colored,
set_line_widthset_line_widthSetLineWidthSetLineWidthset_line_width,
set_drawset_drawSetDrawSetDrawset_draw,
set_insertset_insertSetInsertSetInsertset_insert
Alternatives
draw_xld_moddraw_xld_modDrawXldModDrawXldModdraw_xld_mod,
draw_nurbs_moddraw_nurbs_modDrawNurbsModDrawNurbsModdraw_nurbs_mod
See also
draw_nurbs_interpdraw_nurbs_interpDrawNurbsInterpDrawNurbsInterpdraw_nurbs_interp,
gen_contour_nurbs_xldgen_contour_nurbs_xldGenContourNurbsXldGenContourNurbsXldgen_contour_nurbs_xld
Module
Foundation