Yamyam: 1版をインポートしました

2018-06-28T20:52:30Z

1版をインポートしました

wiki>Jaredr122: /* Set Bézier Handle Type */

2013-01-12T06:26:30Z

‎Set Bézier Handle Type

新規ページ

= Curve Editing =
This page covers the basics of curve editing – more advanced topics, like extrusion (and bevel and taper), are addressed in the next sections:[[Doc:2.6/Manual/Modeling/Curves/Editing/Advanced|Curve Deform and Extruding]]
{{clr}}

==Creating Curves==
Blender has five different curve primitives, two Bézier and three NURBS:
;{{Literal|Bezier Curve}}
:adds an open 2D Bézier curve with two control points.
;{{Literal|Bezier Circle}}:adds a closed, circle-shaped 2D Bézier curve (made of four control points).
;{{Literal|NURBS Curve}}:adds an open 2D NURBS curve, with four control points, with {{Literal|Uniform}} knots.
;{{Literal|NURBS Circle}}:adds a closed, circle-shaped 2D NURBS curve (made of height control points).
;{{Literal|Path}}:adds a NURBS open 3D curve made of five aligned control points, and with {{Literal|Endpoint}} knots and the {{Literal|CurvePath}} setting enabled.
{{clr}}

==Curve Display==
===Display Options===
When in edit mode, the properties window contains options under {{Literal|Curve Display}} for how curves are displayed in the 3d viewport.

;{{Literal|Handles}}:Toggles the display of Bezier handles while in edit moe. This does not affect the appearance of the curve itself. See [[Doc:2.6/Manual/Modeling/Curves|Curves]] for more about handle types.
;{{Literal|Normals}}: Toggles the display of [[Doc:2.6/Manual/Modeling/Curves|Curve Normals]].
;{{Literal|Normal Size}}: Sets the display scale of curve normals. Not that this is relative to the control point scale which can be explicitly set, and is reflected in the normals as well.

=== Hiding Elements ===
As in {{Literal|Object}} mode, you can hide what is selected, and then reveal what was hidden. This is very handy to clean up a bit your views, when you are working on a complex model with thousands of vertices…

To hide, use {{Shortcut|ctrl|alt|H}}, the {{Literal|Hide}} button of the {{Literal|Curve Tools1}} panel, or use the {{Menu|Curve|Show/Hide Control Points|Hide Selected}} menu option.

To reveal what was hidden, use {{Shortcut|alt|H}}, the {{Literal|Reveal}} button of the {{Literal|Curve Tools1}} panel, or the relevant option in the same {{Menu|Curve|Show/Hide Control Points}} menu.
{{clr}}

----
== Basic Curve Editing (translation, rotation, scale) ==
{{RefBox
|mode={{Literal|Edit}} mode
|hotkey={{Shortcut|G}}/{{Shortcut|R}}/{{Shortcut|S}}
|menu={{Menu|Curve|Transform|Grab/Move, Rotate, Scale, …}}
|lang=en
}}
Once you have a selection of one or more control points, you can grab/move ({{Shortcut|G}}), rotate ({{Shortcut|R}}) or scale ({{Shortcut|S}}) them, like many other things in Blender, as described in the [[Doc:2.4/Manual/3D interaction/Transformations/Basics|Manipulation in 3D Space]] section.

Note that Bézier control points contain three vertices (the central one and the two handles), so a whole selected control point is equivalent to three selected vertices for transform tools (i.e. you can rotate and scale it, unlike standard mesh or NURBS vertices).

Note that in general, Bézier curves are easier to edit than NURBS, as when you modify a control point, you only affect the two curve segments on both side of the point. With NURBS, when you move a vertex, the curve can be modified up to three point on both side, depending on the order of the curve… Moreover, a Bézier curve always pass through the center of all its control points – NURBS are far from being so simple!

You also have in {{Literal|Edit}} mode an extra option when using these basic manipulations: the [[Doc:2.6/Manual/3D interaction/Transform Control/Proportional Edit|proportional editing]].
{{clr}}

== Snapping==
{{RefBox
|mode={{Literal|Edit}} mode
|panel={{Literal|Curve Tools1}} ({{Literal|Editing}} context)
|lang=en
}}
[[Doc:2.6/Manual/Modeling/Meshes/Snapping|Mesh snapping]] also works with curve components.

Both control points and their handles will be affected by snapping, except for within itself (other components of the active curve).

Snapping works with 2D curves, however points will be constrained to the curve's local XY axis.

{{clr}}

== Deforming Tools ==
{{RefBox
|mode={{Literal|Edit}} mode
|menu={{Menu|Curve|Transform}}
|lang=en
}}
The {{Literal|To Sphere}}, {{Literal|Shear}}, {{Literal|Wrap}} and {{Literal|Push/Pull}} transform tools are described in the [[Doc:2.6/Manual/3D interaction/Transformations/Advanced|Manipulation in 3D]] chapter.

The two other tools, {{Literal|Tilt}} and {{Literal|Shrink/Fatten Radius}} are related to [[Doc:2.6/Manual/Modeling/Curves/Editing/Advanced|Curve Extrusion]].
{{clr}}

===Smoothing===
{{RefBox
|mode={{Literal|Edit}} mode
|hotkey={{Menu|{{Shortcut|W|}}|smooth}}
|lang=en
}}
Curve smoothing is available through the specials menu. For Bezier curves, this smoothing operation currently only smooths the positions of control points and not their tangents. End points are also constrained when smoothing.

==Mirror==
{{RefBox
|mode={{Literal|Edit}} mode
|menu={{Menu|Curve|Mirror}}
|hotkey = {{shortcut|ctrl|M}}
|lang=en
}}
The {{Literal|Mirror}} tool is also available, behaving exactly as with [[Doc:2.6/Manual/Modeling/Meshes/Edge_and_Face_Tools#Mirror|mesh vertices]],
{{clr}}

----
== Set Bézier Handle Type ==
{{RefBox
|mode={{Literal|Edit}} mode
|hotkey={{Shortcut|V}}
|menu={{Menu|Curve|Control Points|Set Handle Type}}
|panel={{Menu|Curve Tools|Handles}}
|lang=en
}}
This only concerns Bézier curves. As we saw in a [[Doc:2.6/Manual/Modeling/Curves#Béziers|previous page]], these curves can have four types of handles (giving smooth or angled curve…). {{Shortcut|shift|H}} makes all selected control points automatic, {{Shortcut|H}} toggles between free and aligned, and {{Shortcut|V}} makes them vector. Follow above link for more details.
{{clr}}

==Extending Curves ==
{{RefBox
|mode={{Literal|Edit}} mode
|hotkey={{Shortcut|ctrl|lmb}} or {{Shortcut|E}}
|menu={{Menu|Curve|Extrude}}
|lang=en
}}
Once a curve is created you can add new segments (in fact, new control points defining new segments…), either by extruding it, or placing new handles with {{Shortcut|ctrl|lmb}} clicks. Each new segment is added to one end of the curve. A new segment will only be added if a single vertex, or handle, at one end of the curve is selected. If two or more control points are selected nothing is added (however, if you used the {{Shortcut|E}} Extrude command, all selected control points are placed in {{Literal|Grab}} mode…).

Note that unlike with meshes, you can’t create a new curve inside the edited object by just {{Shortcut|ctrl|lmb}}-clicking with nothing selected – to do so, you can cut an existing curve in two parts (by [[#Deleting Elements|deleting a segment]]), [[#Duplication|copy]] an existing one ({{Shortcut|shift|D}}), or add a new one ({{Literal|Add}} menu)…
{{clr}}

== Subdivision ==
{{RefBox
|mode={{Literal|Edit}} mode
|hotkey={{Menu|{{Shortcut|W}}|{{Shortcut|1}}}}
|menu={{Menu|Curve|Segments|Subdivide}}
|panel={{Literal|Curve Tools}} ({{Literal|Editing}} context)
|lang=en
}}
Curve subdivision simply subdivides all selected segments by adding one or more control points between the selected segments.

;{{Literal|Number of Cuts}}: Subdivides the segment multiple times evenly spacing this number of control points.

{{clr}}

== Duplication ==
{{RefBox
|mode={{Literal|Edit}} mode
|hotkey={{Shortcut|shift|D}}
|menu={{Menu|Curve|Duplicate}}
|lang=en
}}
This command duplicates the selected control points, along with the curve segments implicitly selected (if any). The copy is selected and placed in {{Literal|Grab}} mode, so you can move it to another place.
{{clr}}

== Joining Curve Segments ==
{{RefBox
|mode={{Literal|Edit}} mode
|hotkey={{Shortcut|F}}
|menu={{Menu|Curve|Make Segment}}
|lang=en
}}
Two open curves can be combined into one by creating a segment between the two curves. To join two separated use one end control point from each curve. The two curves are joined by a segment to become a single curve.

{|align=center
|[[File:Manual-Part-II-Curves-Bezier-Joining-Ex1.png|frame|none|Two curves.]]
|[[File:Manual-Part-II-Curves-Bezier-Joining-Ex2.png|frame|none|One curve joined.]]
|}

Additionally, you can close a curve by joining the endpoints

Note that you can only join curves of the same type (i.e. Bézier with Bézier, NURBS with NURBS)
{{clr}}

==Separating Curves==
{{RefBox
|mode={{Literal|Edit}} mode
|hotkey={{Shortcut|P}}
|menu={{Menu|Curve|Separate}}
|lang=en
}}

Curve object that are made of multiple distinct splines can be separated into their own objects. Note, if there is only one spline in a curve object, separating when something is selected will create a new curve object with no control points.

== Deleting Elements ==
{{RefBox
|mode={{Literal|Edit}} mode
|hotkey={{Shortcut|X}} or {{Shortcut|Del}}
|menu={{Menu|Curve|Delete...}}
|lang=en
}}
The {{Literal|Erase}} pop-up menu of curves offers you three options:

;{{Literal|Selected}}
:This will delete the selected control points, ''without'' breaking the curve (i.e. the adjacent points will be directly linked, joined, once the intermediary ones are deleted). Remember that NURBS order cannot be higher than its number of control points, so it might decrease when you delete some control points… Of course, when only one point remains, there is no more visible curve, and when all points are deleted, the curve itself is deleted.

;{{Literal|Segment}}
:This option is somewhat the opposite to the preceding one, as it will cut the curve, without removing any control point, by erasing one selected segment.
:This option always removes ''only one segment'' (the last “selected” one), even when several are in the selection. So to delete all segments in your selection, you’ll have to repetitively use the same erase option…

;{{Literal|All}}
:As with meshes, this deletes everything in the object!
{{clr}}

== Opening and Closing a Curve ==
{{RefBox
|mode={{Literal|Edit}} mode
|hotkey={{Shortcut|Alt|C}}
|menu={{Menu|Curve|Toggle Cyclic}}
|lang=en
}}
This toggles between an open curve and closed curve (Cyclic). Only curves with at least one selected control point will be closed/open.

The shape of the closing segment is based on the start and end handles for Bézier curves, and as usual on adjacent control points for NURBS. The only time a handle is adjusted after closing is if the handle is an {{Literal|Auto}} one. (''Open curve'') and (''Closed curve'') is the same Bézier curve open and closed.

This action only works on the original starting control-point or the last control-point added. Deleting a segment(s) dosen’t change how the action applies; it still operates only on the starting and last control-points. This means that {{Shortcut|Alt|C}} may actually join two curves instead of closing a single curve!

Remember that when a 2D curve is closed, it creates a renderable flat face.

{|align=center
|[[File:Manual-Part-II-Curves-Bezier-Open-Ex1.png|frame|none|Open curve.]]
|[[File:Manual-Part-II-Curves-Bezier-Closed-Ex1.png|frame|none|Closed curve.]]
|[[File:Manual-Part-II-Curves-Bezier-Closed-Ex2.png|frame|none|Closed curve (Solid).]]
|}
{{clr}}

== Switch Direction ==
{{RefBox
|mode={{Literal|Edit}} mode
|hotkey={{Menu|{{Shortcut|W}}|{{Shortcut|pad2}}}}
|menu={{Menu|Curve|Segments|Switch Direction}}, {{Menu|Specials|Switch Direction}}
|lang=en
}}
This command will “reverse” the direction of any curve with at least one selected element (i.e. start point will begin end one, and ''vice-versa''). Mainly useful when using curve as path, or the bevel and taper options…
{{clr}}
----
==Converting Tools==
=== Converting Curve Type ===
{{RefBox
|mode={{Literal|Edit}} mode
|panel={{Literal|Curve Tools1|Set Spline type}}
|lang=en
}}
You can convert splines in a curve object between Bézier, NURBS, any Poly curves.

The {{Literal|Set Spline type}} button of the {{Literal|Curve}} group, in the {{Literal|Curve Tools}} panel, allow you to convert selected splines to the chosen type. Note this is not a “smart” conversion, i.e. Blender do not tries to keep the same shape, nor the same number of control points… For example, when converting a NURBS to a Bézier, each group of three NURBS control points become a unique Bézier one (center point and two handles).
{{clr}}

===Convert Curve to Mesh===
{{RefBox
|mode={{Literal|Object}} mode
|menu = {{menu|Object|Convert to}}
|lang=en
}}
There is also an “external” conversion, from curve to mesh, that only works in {{Literal|Object}} mode. It transforms a {{Literal|Curve}} object in a {{Literal|Mesh}} one, using the curve resolution to create edges and vertices. Note also it keeps the faces and volumes created by closed and extruded curves…

===Convert Mesh to Curve===
{{RefBox
|mode={{Literal|Object}} mode
|menu = {{menu|Object|Convert to}}
|lang=en
}}
Mesh objects that consist of a series of connected vertices can be converted into curve objects. The resulting curve will be a Poly curve type, but can be converted to have smooth segments as described above.

==Curve Parenting==
{{RefBox
|mode={{Literal|Edit}} mode
|hotkey={{shortcut|Ctrl|P}}
|lang=en
}}
You can make other selected objects [[Doc:2.5/Manual/Modeling/Objects/Groups and Parenting#Parenting objects|children]] of one or three control points ({{Shortcut|ctrl|P}}, as with mesh objects.

Select either 1 or 3 control points, then {{Shortcut|Ctrl|rmb}} another object and use {{shortcut|Ctrl|P}} to make a vertex parent.

==Hooks==
{{RefBox
|mode={{Literal|Edit}} mode
|hotkey={{shortcut|H}}
|menu = {{menu|curve|control points|hooks}}
|lang=en
}}
[[Doc:2.6/Manual/Modifiers/Deform/Hooks|Hooks]] can be added to control one or more points with other objects.

== Set Goal Weight ==
{{RefBox
|mode={{Literal|Edit}} mode
|menu={{Menu|{{Literal|W}}|Set Goal Weight}}
|lang=en
}}

;{{Literal|Set Goal Weight}}
:This sets the “goal weight” of selected control points, which is used when a curve has Soft Body physics, forcing the curve to "stick" to their original positions, based on the weight.

[[Category:Curves]]
[[Category:Editing]]

← 古い版	2018年6月28日 (木) 20:52時点における版
(相違点なし)

利用者:Jaredr122/Doc:2.6/Manual/Modeling/Curves/Editing - 版の履歴

Yamyam: 1版 をインポートしました

wiki>Jaredr122: /* Set Bézier Handle Type */

Yamyam: 1版をインポートしました