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draw_nurbs_interp_modT_draw_nurbs_interp_modDrawNurbsInterpModdraw_nurbs_interp_modDrawNurbsInterpModDrawNurbsInterpMod (Operator)

Name

draw_nurbs_interp_modT_draw_nurbs_interp_modDrawNurbsInterpModdraw_nurbs_interp_modDrawNurbsInterpModDrawNurbsInterpMod — Interactive modification of a NURBS curve using interpolation.

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)

Herror 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)

HXLDCont HXLDCont::DrawNurbsInterpMod(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)

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

void HOperatorSetX.DrawNurbsInterpMod(
[out] IHUntypedObjectX*ContOut, [in] VARIANT WindowHandle, [in] VARIANT Rotate, [in] VARIANT Move, [in] VARIANT Scale, [in] VARIANT KeepRatio, [in] VARIANT Edit, [in] VARIANT Degree, [in] VARIANT RowsIn, [in] VARIANT ColsIn, [in] VARIANT TangentsIn, [out] VARIANT* ControlRows, [out] VARIANT* ControlCols, [out] VARIANT* Knots, [out] VARIANT* Rows, [out] VARIANT* Cols, [out] VARIANT* Tangents)

VARIANT HXLDContX.DrawNurbsInterpMod(
[in] IHWindowX* WindowHandle, [in] BSTR Rotate, [in] BSTR Move, [in] BSTR Scale, [in] BSTR KeepRatio, [in] BSTR Edit, [in] Hlong Degree, [in] VARIANT RowsIn, [in] VARIANT ColsIn, [in] VARIANT TangentsIn, [out] VARIANT* ControlCols, [out] VARIANT* Knots, [out] VARIANT* Rows, [out] VARIANT* Cols, [out] VARIANT* Tangents)

IHXLDContX* HWindowX.DrawNurbsInterpMod(
[in] BSTR Rotate, [in] BSTR Move, [in] BSTR Scale, [in] BSTR KeepRatio, [in] BSTR Edit, [in] Hlong Degree, [in] VARIANT RowsIn, [in] VARIANT ColsIn, [in] VARIANT TangentsIn, [out] VARIANT* ControlRows, [out] VARIANT* ControlCols, [out] VARIANT* Knots, [out] VARIANT* Rows, [out] VARIANT* Cols, [out] VARIANT* Tangents)

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)

Description

draw_nurbs_interp_moddraw_nurbs_interp_modDrawNurbsInterpModdraw_nurbs_interp_modDrawNurbsInterpModDrawNurbsInterpMod returns the contour ContOutContOutContOutContOutContOutcontOut of a NURBS curve of degree DegreeDegreeDegreeDegreeDegreedegree, which has been modified interactively by the user in the window WindowHandleWindowHandleWindowHandleWindowHandleWindowHandlewindowHandle.

In addition to ContOutContOutContOutContOutContOutcontOut the control information of the curve (ControlRowsControlRowsControlRowsControlRowsControlRowscontrolRows, ControlColsControlColsControlColsControlColsControlColscontrolCols, and KnotsKnotsKnotsKnotsKnotsknots), the interpolation points (RowsRowsRowsRowsRowsrows, ColsColsColsColsColscols) specified by the user and the tangents at the first and the last point (TangentsTangentsTangentsTangentsTangentstangents) are returned. TangentsTangentsTangentsTangentsTangentstangents 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""auto" as weight vector, if the control information is used in a subsequent call to the operator gen_contour_nurbs_xldgen_contour_nurbs_xldGenContourNurbsXldgen_contour_nurbs_xldGenContourNurbsXldGenContourNurbsXld. For more information on NURBS see the documentation of gen_contour_nurbs_xldgen_contour_nurbs_xldGenContourNurbsXldgen_contour_nurbs_xldGenContourNurbsXldGenContourNurbsXld.

The input curve is specified by the interpolation points (RowsInRowsInRowsInRowsInRowsInrowsIn, ColsInColsInColsInColsInColsIncolsIn), its degree DegreeDegreeDegreeDegreeDegreedegree and the tangents TangentsInTangentsInTangentsInTangentsInTangentsIntangentsIn, such that draw_nurbs_interp_moddraw_nurbs_interp_modDrawNurbsInterpModdraw_nurbs_interp_modDrawNurbsInterpModDrawNurbsInterpMod can be applied to the output data of draw_nurbs_interpdraw_nurbs_interpDrawNurbsInterpdraw_nurbs_interpDrawNurbsInterpDrawNurbsInterp.

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 EditEditEditEditEditedit is set to 'true'"true""true""true""true""true". Similarly, you can only rotate, move or scale it if RotateRotateRotateRotateRotaterotate, MoveMoveMoveMoveMovemove, and ScaleScaleScaleScaleScalescale, respectively, are set to 'true'"true""true""true""true""true".

draw_nurbs_interp_moddraw_nurbs_interp_modDrawNurbsInterpModdraw_nurbs_interp_modDrawNurbsInterpModDrawNurbsInterpMod 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 RotateRotateRotateRotateRotaterotate is set to 'true'"true""true""true""true""true", and a double-headed arrow to the upper right if ScaleScaleScaleScaleScalescale is set to 'true'"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

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:

Pressing the right mouse button terminates the procedure. On Mac OS X draw_nurbs_interp_moddraw_nurbs_interp_modDrawNurbsInterpModdraw_nurbs_interp_modDrawNurbsInterpModDrawNurbsInterpMod 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_colorSetColorset_colorSetColorSetColor, set_coloredset_coloredSetColoredset_coloredSetColoredSetColored, set_line_widthset_line_widthSetLineWidthset_line_widthSetLineWidthSetLineWidth, and set_line_styleset_line_styleSetLineStyleset_line_styleSetLineStyleSetLineStyle. The tangents and all handles are displayed in the second color set by set_colorset_colorSetColorset_colorSetColorSetColor or set_coloredset_coloredSetColoredset_coloredSetColoredSetColored. Their line width is fixed to 1 and their line style is fixed to a drawn-through line.

Attention

In contrast to draw_nurbsdraw_nurbsDrawNurbsdraw_nurbsDrawNurbsDrawNurbs, 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.

Parallelization

Parameters

ContOutContOutContOutContOutContOutcontOut (output_object)  xld_cont objectHXLDContHXLDContHXLDContHXLDContXHobject *

Contour of the modified curve.

WindowHandleWindowHandleWindowHandleWindowHandleWindowHandlewindowHandle (input_control)  window HWindow, HTupleHTupleHTupleHWindowX, VARIANTHtuple (integer) (IntPtr) (Hlong) (Hlong) (Hlong) (Hlong)

Window identifier.

RotateRotateRotateRotateRotaterotate (input_control)  string HTupleHTupleHTupleVARIANTHtuple (string) (string) (HString) (char*) (BSTR) (char*)

Enable rotation?

Default value: 'true' "true" "true" "true" "true" "true"

List of values: 'false'"false""false""false""false""false", 'true'"true""true""true""true""true"

MoveMoveMoveMoveMovemove (input_control)  string HTupleHTupleHTupleVARIANTHtuple (string) (string) (HString) (char*) (BSTR) (char*)

Enable moving?

Default value: 'true' "true" "true" "true" "true" "true"

List of values: 'false'"false""false""false""false""false", 'true'"true""true""true""true""true"

ScaleScaleScaleScaleScalescale (input_control)  string HTupleHTupleHTupleVARIANTHtuple (string) (string) (HString) (char*) (BSTR) (char*)

Enable scaling?

Default value: 'true' "true" "true" "true" "true" "true"

List of values: 'false'"false""false""false""false""false", 'true'"true""true""true""true""true"

KeepRatioKeepRatioKeepRatioKeepRatioKeepRatiokeepRatio (input_control)  string HTupleHTupleHTupleVARIANTHtuple (string) (string) (HString) (char*) (BSTR) (char*)

Keep ratio while scaling?

Default value: 'true' "true" "true" "true" "true" "true"

List of values: 'false'"false""false""false""false""false", 'true'"true""true""true""true""true"

EditEditEditEditEditedit (input_control)  string HTupleHTupleHTupleVARIANTHtuple (string) (string) (HString) (char*) (BSTR) (char*)

Enable editing?

Default value: 'true' "true" "true" "true" "true" "true"

List of values: 'false'"false""false""false""false""false", 'true'"true""true""true""true""true"

DegreeDegreeDegreeDegreeDegreedegree (input_control)  integer HTupleHTupleHTupleVARIANTHtuple (integer) (int / long) (Hlong) (Hlong) (Hlong) (Hlong)

The degree p of the NURBS curve. Reasonable values are 3 to 5.

Default value: 3

Suggested values: 2, 3, 4, 5

Restriction: Degree >= 2 && Degree <= 9

RowsInRowsInRowsInRowsInRowsInrowsIn (input_control)  coordinates.y-array HTupleHTupleHTupleVARIANTHtuple (real) (double) (double) (double) (double) (double)

Row coordinates of the input interpolation points.

ColsInColsInColsInColsInColsIncolsIn (input_control)  coordinates.x-array HTupleHTupleHTupleVARIANTHtuple (real) (double) (double) (double) (double) (double)

Column coordinates of the input interpolation points.

TangentsInTangentsInTangentsInTangentsInTangentsIntangentsIn (input_control)  real-array HTupleHTupleHTupleVARIANTHtuple (real) (double) (double) (double) (double) (double)

Input tangents.

ControlRowsControlRowsControlRowsControlRowsControlRowscontrolRows (output_control)  coordinates.y-array HTupleHTupleHTupleVARIANTHtuple (real) (double) (double) (double) (double) (double)

Row coordinates of the control polygon.

ControlColsControlColsControlColsControlColsControlColscontrolCols (output_control)  coordinates.x-array HTupleHTupleHTupleVARIANTHtuple (real) (double) (double) (double) (double) (double)

Column coordinates of the control polygon.

KnotsKnotsKnotsKnotsKnotsknots (output_control)  real-array HTupleHTupleHTupleVARIANTHtuple (real) (double) (double) (double) (double) (double)

Knot vector.

RowsRowsRowsRowsRowsrows (output_control)  coordinates.y-array HTupleHTupleHTupleVARIANTHtuple (real) (double) (double) (double) (double) (double)

Row coordinates of the points specified by the user.

ColsColsColsColsColscols (output_control)  coordinates.x-array HTupleHTupleHTupleVARIANTHtuple (real) (double) (double) (double) (double) (double)

Column coordinates of the points specified by the user.

TangentsTangentsTangentsTangentsTangentstangents (output_control)  real-array HTupleHTupleHTupleVARIANTHtuple (real) (double) (double) (double) (double) (double)

Tangents specified by the user.

Result

draw_nurbs_interp_moddraw_nurbs_interp_modDrawNurbsInterpModdraw_nurbs_interp_modDrawNurbsInterpModDrawNurbsInterpMod returns 2 (H_MSG_TRUE), if the window is valid. If necessary, an exception is raised.

Possible Predecessors

open_windowopen_windowOpenWindowopen_windowOpenWindowOpenWindow

Possible Successors

set_coloredset_coloredSetColoredset_coloredSetColoredSetColored, set_line_widthset_line_widthSetLineWidthset_line_widthSetLineWidthSetLineWidth, set_drawset_drawSetDrawset_drawSetDrawSetDraw, set_insertset_insertSetInsertset_insertSetInsertSetInsert

Alternatives

draw_xld_moddraw_xld_modDrawXldModdraw_xld_modDrawXldModDrawXldMod, draw_nurbs_moddraw_nurbs_modDrawNurbsModdraw_nurbs_modDrawNurbsModDrawNurbsMod

See also

draw_nurbs_interpdraw_nurbs_interpDrawNurbsInterpdraw_nurbs_interpDrawNurbsInterpDrawNurbsInterp, gen_contour_nurbs_xldgen_contour_nurbs_xldGenContourNurbsXldgen_contour_nurbs_xldGenContourNurbsXldGenContourNurbsXld

Module

Foundation


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