draw_nurbs_modT_draw_nurbs_modDrawNurbsModDrawNurbsMod (Operator)
Name
draw_nurbs_modT_draw_nurbs_modDrawNurbsModDrawNurbsMod — Interactive modification of a NURBS curve.
Warning
This operator does not work in an HDevelop graphics window opened with
dev_open_window.
Signature
draw_nurbs_mod( : ContOut : WindowHandle, Rotate, Move, Scale, KeepRatio, Edit, Degree, RowsIn, ColsIn, WeightsIn : Rows, Cols, Weights)
Herror T_draw_nurbs_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 WeightsIn, Htuple* Rows, Htuple* Cols, Htuple* Weights)
void DrawNurbsMod(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& WeightsIn, HTuple* Rows, HTuple* Cols, HTuple* Weights)
void HXLDCont::DrawNurbsMod(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& WeightsIn, HTuple* Rows, HTuple* Cols, HTuple* Weights)
void HXLDCont::DrawNurbsMod(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& WeightsIn, HTuple* Rows, HTuple* Cols, HTuple* Weights)
void HXLDCont::DrawNurbsMod(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& WeightsIn, HTuple* Rows, HTuple* Cols, HTuple* Weights)
(Windows only)
HXLDCont HWindow::DrawNurbsMod(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& WeightsIn, HTuple* Rows, HTuple* Cols, HTuple* Weights) const
HXLDCont HWindow::DrawNurbsMod(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& WeightsIn, HTuple* Rows, HTuple* Cols, HTuple* Weights) const
HXLDCont HWindow::DrawNurbsMod(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& WeightsIn, HTuple* Rows, HTuple* Cols, HTuple* Weights) const
(Windows only)
static void HOperatorSet.DrawNurbsMod(out HObject contOut, HTuple windowHandle, HTuple rotate, HTuple move, HTuple scale, HTuple keepRatio, HTuple edit, HTuple degree, HTuple rowsIn, HTuple colsIn, HTuple weightsIn, out HTuple rows, out HTuple cols, out HTuple weights)
void HXLDCont.DrawNurbsMod(HWindow windowHandle, string rotate, string move, string scale, string keepRatio, string edit, int degree, HTuple rowsIn, HTuple colsIn, HTuple weightsIn, out HTuple rows, out HTuple cols, out HTuple weights)
HXLDCont HWindow.DrawNurbsMod(string rotate, string move, string scale, string keepRatio, string edit, int degree, HTuple rowsIn, HTuple colsIn, HTuple weightsIn, out HTuple rows, out HTuple cols, out HTuple weights)
Description
draw_nurbs_moddraw_nurbs_modDrawNurbsModDrawNurbsModDrawNurbsMod returns the contour ContOutContOutContOutContOutcontOut and control
information (RowsRowsRowsRowsrows, ColsColsColsColscols, and WeightsWeightsWeightsWeightsweights) of a NURBS
curve of degree DegreeDegreeDegreeDegreedegree, which has been interactively
modified by the user in the window WindowHandleWindowHandleWindowHandleWindowHandlewindowHandle. For additional
information concerning NURBS curves, see the documentation of
gen_contour_nurbs_xldgen_contour_nurbs_xldGenContourNurbsXldGenContourNurbsXldGenContourNurbsXld. To use the control information
RowsRowsRowsRowsrows, ColsColsColsColscols, and WeightsWeightsWeightsWeightsweights in a subsequent call to
the operator gen_contour_nurbs_xldgen_contour_nurbs_xldGenContourNurbsXldGenContourNurbsXldGenContourNurbsXld, the knot vector KnotsKnotsKnotsKnotsknots
should be set to 'auto'"auto""auto""auto""auto".
The input NURBS curve is specified by its control polygon
(RowsInRowsInRowsInRowsInrowsIn, ColsInColsInColsInColsIncolsIn), its weight vector WeightsInWeightsInWeightsInWeightsInweightsIn and
its degree DegreeDegreeDegreeDegreedegree. The knot vector is assumed to be uniform (i.e.
'auto'"auto""auto""auto""auto" in gen_contour_nurbs_xldgen_contour_nurbs_xldGenContourNurbsXldGenContourNurbsXldGenContourNurbsXld).
You can modify the curve in two ways: by editing the control polygon,
e.g., by inserting or moving control points, or by transforming the contour
as a whole, e.g., by rotating moving or scaling it. Note that you can only
edit the control polygon 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_moddraw_nurbs_modDrawNurbsModDrawNurbsModDrawNurbsMod 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
-
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 KeepRatioKeepRatioKeepRatioKeepRatiokeepRatio has to be set to
'true'"true""true""true""true".
Edit Mode
In this mode, the curve is displayed together with its control polygon.
Start and end point are marked by an additional square and the point which
was handled last is surrounded by a circle representing its weight. You can
perform the following modifications:
-
To append control 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 control polygon, click on the
desired position on the polygon.
-
To close respectively open the curve, click on the first or on
the last control point.
-
You can modify the weight of a control point by first clicking on the
point itself (if it is not already the point which was modified or
created last) and then dragging the circle around the point.
Pressing the right mouse button terminates the procedure. On macOS
draw_nurbs_moddraw_nurbs_modDrawNurbsModDrawNurbsModDrawNurbsMod can also be terminated by pressing the escape key.
The appearance of the curve while drawing is determined by the line width,
size and color set via the operators set_colorset_colorSetColorSetColorSetColor, set_coloredset_coloredSetColoredSetColoredSetColored,
set_line_widthset_line_widthSetLineWidthSetLineWidthSetLineWidth, and set_line_styleset_line_styleSetLineStyleSetLineStyleSetLineStyle. The control polygon and
all handles are displayed in the second color set by set_colorset_colorSetColorSetColorSetColor or
set_coloredset_coloredSetColoredSetColoredSetColored. Their line width is fixed to 1 and their line style is
fixed to a drawn-through line.
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
ContOutContOutContOutContOutcontOut (output_object) xld_cont → objectHXLDContHXLDContHobject *
Contour of the modified curve.
WindowHandleWindowHandleWindowHandleWindowHandlewindowHandle (input_control) window → HWindow, HTupleHTupleHtuple (handle) (IntPtr) (HHandle) (handle)
Window handle.
RotateRotateRotateRotaterotate (input_control) string → HTupleHTupleHtuple (string) (string) (HString) (char*)
Enable rotation?
Default value:
'true'
"true"
"true"
"true"
"true"
List of values: 'false'"false""false""false""false", 'true'"true""true""true""true"
MoveMoveMoveMovemove (input_control) string → HTupleHTupleHtuple (string) (string) (HString) (char*)
Enable moving?
Default value:
'true'
"true"
"true"
"true"
"true"
List of values: 'false'"false""false""false""false", 'true'"true""true""true""true"
ScaleScaleScaleScalescale (input_control) string → HTupleHTupleHtuple (string) (string) (HString) (char*)
Enable scaling?
Default value:
'true'
"true"
"true"
"true"
"true"
List of values: 'false'"false""false""false""false", 'true'"true""true""true""true"
KeepRatioKeepRatioKeepRatioKeepRatiokeepRatio (input_control) string → HTupleHTupleHtuple (string) (string) (HString) (char*)
Keep ratio while scaling?
Default value:
'true'
"true"
"true"
"true"
"true"
List of values: 'false'"false""false""false""false", 'true'"true""true""true""true"
EditEditEditEditedit (input_control) string → HTupleHTupleHtuple (string) (string) (HString) (char*)
Enable editing?
Default value:
'true'
"true"
"true"
"true"
"true"
List of values: 'false'"false""false""false""false", 'true'"true""true""true""true"
DegreeDegreeDegreeDegreedegree (input_control) integer → HTupleHTupleHtuple (integer) (int / long) (Hlong) (Hlong)
The degree p of the NURBS curve.
Reasonable values are 3 to 25.
Default value: 3
Suggested values: 2, 3, 4, 5
Restriction: Degree >= 2
RowsInRowsInRowsInRowsInrowsIn (input_control) coordinates.y-array → HTupleHTupleHtuple (real) (double) (double) (double)
Row coordinates of the input control polygon.
ColsInColsInColsInColsIncolsIn (input_control) coordinates.x-array → HTupleHTupleHtuple (real) (double) (double) (double)
Column coordinates of the input control polygon.
WeightsInWeightsInWeightsInWeightsInweightsIn (input_control) real-array → HTupleHTupleHtuple (real) (double) (double) (double)
Input weight vector.
RowsRowsRowsRowsrows (output_control) coordinates.y-array → HTupleHTupleHtuple (real) (double) (double) (double)
Row coordinates of the control polygon.
ColsColsColsColscols (output_control) coordinates.x-array → HTupleHTupleHtuple (real) (double) (double) (double)
Columns coordinates of the control polygon.
WeightsWeightsWeightsWeightsweights (output_control) real-array → HTupleHTupleHtuple (real) (double) (double) (double)
Weight vector.
Result
draw_nurbs_moddraw_nurbs_modDrawNurbsModDrawNurbsModDrawNurbsMod returns 2 (H_MSG_TRUE), if the window is valid.
If necessary, an exception is raised.
Possible Predecessors
open_windowopen_windowOpenWindowOpenWindowOpenWindow
Possible Successors
set_coloredset_coloredSetColoredSetColoredSetColored,
set_line_widthset_line_widthSetLineWidthSetLineWidthSetLineWidth,
set_drawset_drawSetDrawSetDrawSetDraw,
set_insertset_insertSetInsertSetInsertSetInsert
Alternatives
draw_nurbs_interp_moddraw_nurbs_interp_modDrawNurbsInterpModDrawNurbsInterpModDrawNurbsInterpMod,
draw_xld_moddraw_xld_modDrawXldModDrawXldModDrawXldMod
See also
draw_nurbsdraw_nurbsDrawNurbsDrawNurbsDrawNurbs,
draw_nurbs_interpdraw_nurbs_interpDrawNurbsInterpDrawNurbsInterpDrawNurbsInterp,
gen_contour_nurbs_xldgen_contour_nurbs_xldGenContourNurbsXldGenContourNurbsXldGenContourNurbsXld
Module
Foundation