Draft PathArray/cs: Difference between revisions

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<languages/>
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|[[Draft_CircularArray|CircularArray]]
|[[Draft_CircularArray|CircularArray]]
|[[Draft_PathLinkArray|PathLinkArray]]
|[[Draft_PathLinkArray|PathLinkArray]]
|[[Draft_Module|Draft]]
|[[Draft_Workbench|Draft]]
|IconL=Draft_CircularArray.svg
|IconL=Draft_CircularArray.svg
|IconR=Draft_PathLinkArray.svg
|IconR=Draft_PathLinkArray.svg
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<div class="mw-translate-fuzzy">
<div class="mw-translate-fuzzy">
{{GuiCommand/cs|Name=Draft PathArray|Name/cs=Kreslení TrasovéPole|Workbenches=[[Draft Module/cs|Kreslení]], [[Arch Module/cs|Architektura]]|MenuLocation=Draft → PathArray|SeeAlso=[[Draft Array/cs|Draft Array]] }}
{{GuiCommand/cs|Name=Draft PathArray|Name/cs=Kreslení TrasovéPole|Workbenches=[[Draft_Workbench/cs|Kreslení]], [[Arch_Workbench/cs|Architektura]]|MenuLocation=Draft → PathArray|SeeAlso=[[Draft Array/cs|Draft Array]] }}
</div>
</div>


<span id="Description"></span>
==Popis==
==Popis==


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The PathArray tool can be used on any object that has a [[Part_TopoShape|Part TopoShape]], meaning 2D shapes created with the [[Draft_Workbench|Draft Workbench]], but also 3D solids created with other workbenches, for example, [[Part_Workbench|Part]], [[PartDesign_Workbench|PartDesign]], or [[Arch_Workbench|Arch]].
Both commands can be used on 2D objects created with the [[Draft_Workbench|Draft Workbench]] or [[Sketcher_Workbench|Sketcher Workbench]], but also on many 3D objects such as those created with the [[Part_Workbench|Part Workbench]], [[PartDesign_Workbench|PartDesign Workbench]] or [[Arch_Workbench|Arch Workbench]].

* To create orthogonal, polar or circular arrays, use the corresponding {{Button|[[File:Draft_OrthoArray.svg|16px]] [[Draft_OrthoArray|OrthoArray]]}}, {{Button|[[File:Draft_PolarArray.svg|16px]] [[Draft_PolarArray|PolarArray]]}}, or {{Button|[[File:Draft_CircularArray.svg|16px]] [[Draft_CircularArray|CircularArray]]}} tools.
* To position [[App_Link|App Link]] copies along a path use {{Button|[[File:Draft_PathLinkArray.svg|16px]] [[Draft_PathLinkArray|PathLinkArray]]}}.
* To position copies at specified points use {{Button|[[File:Draft_PointArray.svg|16px]] [[Draft_PointArray|PointArray]]}} or {{Button|[[File:Draft_PointLinkArray.svg|16px]] [[Draft_PointLinkArray|PointLinkArray]]}}.
* To create copies and manually place them use {{Button|[[File:Draft_Move.svg|16px]] [[Draft_Move|Move]]}} or {{Button|[[File:Draft_Rotate.svg|16px]] [[Draft_Rotate|Rotate]]}}.
* To create exact copies and manually place or scale them, use {{Button|[[File:Draft_Clone.svg|16px]] [[Draft_Clone|Clone]]}} or {{Button|[[File:Std_LinkMake.svg|16px]] [[Std_LinkMake|Std LinkMake]]}}.


[[Image:Draft_PathArray_Example.png|400px]]
[[Image:Draft_PathArray_Example.png|400px]]
{{Caption|Object arranged along a path}}
{{Caption|Draft PathArray}}


<span id="Usage"></span>
<div class="mw-translate-fuzzy">
<div class="mw-translate-fuzzy">
==Použití==
==Použití==
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</div>
</div>


==Alignment==
Each element in the array is an exact clone of the original object, but the entire array is considered a single unit in terms of properties and appearance.


The alignment of the elements in a Draft PathArray depends on the properties of the array and the orientation of the source object. The position of the source object is ignored: for the purpose of the array the {{Value|x}}, {{Value|y}} and {{Value|z}} are set to {{Value|0}}. If the {{PropertyData|Align}} property of the array is set to {{FALSE}} the orientation of the array elements is identical to that of the source object. If it is set to {{TRUE}} the X axis of the local coordinate system of each element placement is tangent to the path. The Y and Z axes of the local coordinate systems depend on the {{PropertyData|Align Mode}} property of the array. Other array properties involved in the alignment include {{PropertyData|Tangent Vector}}, {{PropertyData|Force Vertical}} and {{PropertyData|Vertical Vector}}.
{{Emphasis|Note:}} if the {{PropertyData|Base}} object doesn't seem to be positioned correctly in the path, check that its {{PropertyData|Placement}} is in the origin {{Value|(0,0,0)}}. Certain objects can be placed anywhere in the 3D space when used with the {{Button|[[Image:Draft_PathArray.svg|16px]] [[Draft_PathArray|PathArray]]}} tool, but others must be at the origin, particularly those created by using {{Button|[[File:Part_Extrude.svg|16px]] [[Part_Extrude|Part Extrude]]}} with a 2D profile like a {{Button|[[File:Sketcher_NewSketch.svg|16px]] [[Sketch|Sketch]]}}.


[[Image:Draft_PathArray_example2.png|600px]]
==Volby==
{{Caption|3 arrays based on the same non-planar path. From left to right: Align is false, Align is true with Align Mode Original and Align is true with Align Mode Frenet}}.


===Align Mode===
<div class="mw-translate-fuzzy">

* Pole začne s kopiemi tvaru, které nejsou zarovnány podle trasy ani defaultně posunuty na novou pozici. Ve vlastnostech můžete měnit počet, zarovnání a/nebo vektor posunutí.
Three modes are available:
</div>

====Original====

This mode comes closest to the single {{PropertyData|Align Mode}} available in version 0.18. It relies on a fixed normal vector. If the path is planar this vector is perpendicular to the plane of the path, else a default vector, the positive Z axis, is used. From this normal vector and the local tangent vector (the local X axis) a [https://en.wikipedia.org/wiki/Cross_product cross product] is calculated. This new vector is used as the local Z axis. The orientation of the local Y axis is determined from the local X and Z axes.

====Frenet====

This mode uses the local normal vector derived from the path at each element placement. If this vector cannot be determined (for example in the case of a straight segment) a default vector, again the positive Z axis, is used instead. With this vector and the local tangent vector the local coordinate system is determined using the same procedure as in the previous paragraph.

====Tangent====

This mode is similar to {{PropertyData|Align Mode}} {{Value|Original}} but includes the possibility to pre-rotate the source object by specifying a {{PropertyData|Tangent Vector}}.

===Force Vertical and Vertical Vector===

These properties are only available if {{PropertyData|Align Mode}} is {{Value|Original}} or {{Value|Tangent}}. If {{PropertyData|Force Vertical}} is set to {{TRUE}} the local coordinate system is calculated in a different manner. The {{PropertyData|Vertical Vector}} is used as a fixed normal vector. From this normal vector and the local tangent vector (the local X axis) again a cross product is calculated. But now this vector is used as the local Y axis. The orientation of the local Z axis is determined from the local X and Y axes.

Using these properties can be required if one of the edged of the path is (almost) parallel to the default normal of the path.


<span id="Properties"></span>
==Vlastnosti==
==Vlastnosti==


See also: [[property_editor|Property editor]].
A [[Draft_PathArray|PathArray]] is derived from a [[Part_Feature|Part Feature]] ({{incode|Part::Feature}} class), therefore it shares all the latter's properties. In addition to the properties described in [[Part_Feature|Part Feature]], the PathArray has the following properties in the [[property_editor|property editor]].

A Draft PathArray object is derived from a [[Part_Feature|Part Feature]] object and inherits all its properties (with the exception of some View properties that are not inherited by Link arrays). The following properties are additional unless otherwise stated:

===Data===

{{TitleProperty|Link}}

The properties in this group are only available for Link arrays. See [[Std_LinkMake#Properties|Std LinkMake]] for more information.

* {{PropertyData|Scale|Float}}
* {{PropertyData|Scale Vector|Vector|Hidden}}
* {{PropertyData|Scale List|VectorList}}
* {{PropertyData|Visibility List|BoolList|Hidden}}
* {{PropertyData|Placement List|PlacementList|Hidden}}
* {{PropertyData|Element List|LinkList|Hidden}}
* {{PropertyData|_ Link Touched|Bool|Hidden}}
* {{PropertyData|_ Child Cache|LinkList|Hidden}}
* {{PropertyData|Colored Elements|LinkSubHidden|Hidden}}
* {{PropertyData|Link Transform|Bool}}


{{TitleProperty|Alignment}}
{{TitleProperty|Alignment}}
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{{TitleProperty|Objects}}
{{TitleProperty|Objects}}


* {{PropertyData|Base|LinkGlobal}}: specifies the object to duplicate in the path.
* {{PropertyData|Base|LinkGlobal}}: specifies the object to duplicate in the array.
* {{PropertyData|Count|Integer}}: specifies the number of copies to create in the path.
* {{PropertyData|Count|Integer}}: specifies the number of elements in the array.
* {{PropertyData|Expand Array|Bool}}: specifies whether to expand the array in the [[Tree_view|Tree view]] to enable the selection of its individual elements. Only available for Link arrays.
* {{PropertyData|Path Object|LinkGlobal}}: specifies the object along which the copies will be distributed. It must contain {{Value|'Edges'}} in its [[Part_TopoShape|Part TopoShape]]; for example, it could be a {{Button|[[File:Draft_Wire.svg|16px]] [[Draft_Wire|Wire]]}} or {{Button|[[File:Draft_BSpline.svg|16px]] [[Draft_BSpline|BSpline]]}}.
* {{PropertyData|Fuse|Bool}}: specifies if overlapping elements in the array are fused or not. Not used for Link arrays. {{Version|1.0}}
* {{PropertyData|Path Subelements|LinkSubListGlobal}}: specifies the sub-elements (edges) of the {{PropertyData|Path Object}} on which the copies will be created. The copies will be created only on these edges. If this property is empty, the copies will be distributed on the entire {{PropertyData|Path Object}}.
* {{PropertyData|Path Object|LinkGlobal}}: specifies the object to be used for the path. It must contain {{Value|Edges}} in its [[Part_TopoShape|Part TopoShape]].
* {{PropertyData|Path Subelements|LinkSubListGlobal}}: specifies a list of edges of the {{PropertyData|Path Object}}. If supplied only these edges are used for the path.

===View===

{{TitleProperty|Link}}

The properties in this group, with the exception of the inherited property, are only available for Link arrays. See [[Std_LinkMake#Properties|Std LinkMake]] for more information.

* {{PropertyView|Draw Style|Enumeration}}
* {{PropertyView|Line Width|FloatConstraint}}
* {{PropertyView|Override Material|Bool}}
* {{PropertyView|Point Size|FloatConstraint}}
* {{PropertyView|Selectable|Bool}}: this is an inherited property that appears in the Selection group for other arrays
* {{PropertyView|Shape Material|Material}}

{{TitleProperty|Base}}

The properties in this group, with the exception of the inherited property, are only available for Link arrays. See [[Std_LinkMake#Properties|Std LinkMake]] for more information.

* {{PropertyView|Child View Provider|PersistentObject|Hidden}}
* {{PropertyView|Material List|MaterialList|Hidden}}
* {{PropertyView|Override Color List|ColorList|Hidden}}
* {{PropertyView|Override Material List|BoolList|Hidden}}
* {{PropertyView|Proxy|PythonObject|Hidden}}: this is an inherited property.

{{TitleProperty|Display Options}}

The properties in this group are inherited properties. See [[Part_Feature#Properties|Part Feature]] for more information.

* {{PropertyView|Bounding Box|Bool}}: this property is not inherited by Link arrays.
* {{PropertyView|Display Mode|Enumeration}}: for Link arrays it can be {{value|Link}} or {{value|ChildView}}. For other arrays it can be: {{value|Flat Lines}}, {{value|Shaded}}, {{value|Wireframe}} or {{value|Points}}
* {{PropertyView|Show In Tree|Bool}}
* {{PropertyView|Visibility|Bool}}

{{TitleProperty|Draft}}

* {{PropertyView|Pattern|Enumeration}}: not used.
* {{PropertyView|Pattern Size|Float}}: not used.

{{TitleProperty|Object style}}

The properties in this group are not inherited by Link arrays.


==Scripting==
==Scripting==
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Nástroj TrasovéPole může být využit v [[macros|makrech]] a z konzoly Pythonu použitím následující funkce:
Nástroj TrasovéPole může být využit v [[macros|makrech]] a z konzoly Pythonu použitím následující funkce:
</div>
</div>

Older call:

{{Code|code=
path_array = makePathArray(base_object, path_object, count, xlate=None, align=False, pathobjsubs=[])
}}

New call:


{{Code|code=
{{Code|code=
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align=False, align_mode="Original", tan_vector=App.Vector(1, 0, 0),
align=False, align_mode="Original", tan_vector=App.Vector(1, 0, 0),
force_vertical=False, vertical_vector=App.Vector(0, 0, 1),
force_vertical=False, vertical_vector=App.Vector(0, 0, 1),
use_link=True):
use_link=True)
}}
}}


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doc.recompute()
doc.recompute()
}}
}}

==Technical explanation for the Align property==

When {{PropertyData|Align}} is {{FALSE}}, the placement of the copied shapes is easy to understand; they are just moved to a different position in their original orientation.

[[Image:patharray_NoAlign.png|600px|left|Align false]]
{{clear}}
{{Caption|Object arranged along a closed path in the original orientation}}

When {{PropertyData|Align}} is {{TRUE}}, the positioning of the shapes becomes a bit more complex:
# First, Frenet coordinate systems are built on the path: X is tangent, Z is normal, Y is binormal.
# Then the original object is copied to every on-path coordinate system, so that the global origin is matched with the on-path coordinate system origin.

[[Image:patharray alignment annotated.png|600px|left]]
{{clear}}
{{Caption|Object arranged along a closed path; description of components and path}}

The following images show how the array is produced, depending on which plane the path is.

Path on XY Plane:

[[Image:patharray_alignment.png|600px|left]]
{{clear}}
{{Caption|Object arranged along a closed path which is aligned to the XY plane}}

Path on XZ Plane:

[[Image:patharray_alignment-XZ.png|600px|left]]
{{clear}}
{{Caption|Object arranged along a closed path which is aligned to the XZ plane}}

Path on YZ Plane:

[[Image:patharray_alignment-YZ.png|600px|left]]
{{clear}}
{{Caption|Object arranged along a closed path which is aligned to the YZ plane}}

As you reorient the path but not the object, the result is consistent: the object remains aligned to the path the way it was before reorienting the path.

{{Emphasis|Editor:}} thank you to user DeepSOIC for this explanation.

==Additional alignment modes and options introduced in v0.19==

'''Original''' mode (the default) is the historic alignment mode as in version 0.18.
It is not really the Frenet alignment. Original mode uses the normal parameter
from Draft.getNormal (or the default) as a constant - it does not calculate
curve normal. X follows the curve tangent, Y is the normal parameter, Z is
X.Cross(Y).

'''Tangent''' mode is similar to '''Original''', but includes a rotation to align the
Base object's X to the TangentVector before placing copies. After the
rotation, Tangent behaves the same as Original. In previous versions this
rotation would be performed manually before invoking PathArray.

'''Frenet''' mode orients the copies to a coordinate system along the path. X is
tangent to curve, Y is curve normal, Z is curve binormal. If a normal can not
be computed (ex a straight line), the default is used.

The ForceVertical option applies to Original and Tangent modes. When this
option is applied, the normal parameter from Draft.getNormal is ignored. X
follows the curve tangent, Z is the VerticalVector property and Y is
X.Cross(Z).

Version 18 cycle chain - Original mode
[[Image:patharray_cycleChain.png|600px|left|Align false]]
{{clear}}

Railway cross ties (sleepers) - Tangent mode + ForceVertical
[[Image:patharray_railwayTies.png|600px|left|Align false]]
{{clear}}

Frenet Mode
[[Image:patharray_FrenetMode.png|600px|left|Align false]]
{{clear}}




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|[[Draft_CircularArray|CircularArray]]
|[[Draft_CircularArray|CircularArray]]
|[[Draft_PathLinkArray|PathLinkArray]]
|[[Draft_PathLinkArray|PathLinkArray]]
|[[Draft_Module|Draft]]
|[[Draft_Workbench|Draft]]
|IconL=Draft_CircularArray.svg
|IconL=Draft_CircularArray.svg
|IconR=Draft_PathLinkArray.svg
|IconR=Draft_PathLinkArray.svg

Latest revision as of 09:50, 21 April 2024

Kreslení TrasovéPole

Umístění Menu
Draft → PathArray
Pracovní stoly
Kreslení, Architektura
Výchozí zástupce
Nikdo
Představen ve verzi
-
Viz také
Draft Array

Popis

Nástroj TrasovéPole umístí vybraný tvar na vybranou trasu. Trasa může být drát nebo jedna nebo více hran. Tvary na trase mohou být volitelně zarovnány podle trasy. Podle potřeby může být specifikován Vektor pro posunutí tvaru tak, že těžiště tvaru bude na trase. Pokud není vybrán žádný objekt, budete vyzváni k jeho výběru.

Both commands can be used on 2D objects created with the Draft Workbench or Sketcher Workbench, but also on many 3D objects such as those created with the Part Workbench, PartDesign Workbench or Arch Workbench.

Draft PathArray

Použití

  1. Vyberte objekt tvaru, který chcete kopírovat.
  2. Vyberte objekt trasy, po které chcete tvar kopírovat -nebo-
  3. Vyberte nějaké hrany pro určení trasy.
  4. Stiskněte tlačítko Kreslení TrasovéPole.

Alignment

The alignment of the elements in a Draft PathArray depends on the properties of the array and the orientation of the source object. The position of the source object is ignored: for the purpose of the array the x, y and z are set to 0. If the ÚdajeAlign property of the array is set to false the orientation of the array elements is identical to that of the source object. If it is set to true the X axis of the local coordinate system of each element placement is tangent to the path. The Y and Z axes of the local coordinate systems depend on the ÚdajeAlign Mode property of the array. Other array properties involved in the alignment include ÚdajeTangent Vector, ÚdajeForce Vertical and ÚdajeVertical Vector.

3 arrays based on the same non-planar path. From left to right: Align is false, Align is true with Align Mode Original and Align is true with Align Mode Frenet

.

Align Mode

Three modes are available:

Original

This mode comes closest to the single ÚdajeAlign Mode available in version 0.18. It relies on a fixed normal vector. If the path is planar this vector is perpendicular to the plane of the path, else a default vector, the positive Z axis, is used. From this normal vector and the local tangent vector (the local X axis) a cross product is calculated. This new vector is used as the local Z axis. The orientation of the local Y axis is determined from the local X and Z axes.

Frenet

This mode uses the local normal vector derived from the path at each element placement. If this vector cannot be determined (for example in the case of a straight segment) a default vector, again the positive Z axis, is used instead. With this vector and the local tangent vector the local coordinate system is determined using the same procedure as in the previous paragraph.

Tangent

This mode is similar to ÚdajeAlign Mode Original but includes the possibility to pre-rotate the source object by specifying a ÚdajeTangent Vector.

Force Vertical and Vertical Vector

These properties are only available if ÚdajeAlign Mode is Original or Tangent. If ÚdajeForce Vertical is set to true the local coordinate system is calculated in a different manner. The ÚdajeVertical Vector is used as a fixed normal vector. From this normal vector and the local tangent vector (the local X axis) again a cross product is calculated. But now this vector is used as the local Y axis. The orientation of the local Z axis is determined from the local X and Y axes.

Using these properties can be required if one of the edged of the path is (almost) parallel to the default normal of the path.

Vlastnosti

See also: Property editor.

A Draft PathArray object is derived from a Part Feature object and inherits all its properties (with the exception of some View properties that are not inherited by Link arrays). The following properties are additional unless otherwise stated:

Data

Link

The properties in this group are only available for Link arrays. See Std LinkMake for more information.

  • ÚdajeScale (Float)
  • Údaje (Hidden)Scale Vector (Vector)
  • ÚdajeScale List (VectorList)
  • Údaje (Hidden)Visibility List (BoolList)
  • Údaje (Hidden)Placement List (PlacementList)
  • Údaje (Hidden)Element List (LinkList)
  • Údaje (Hidden)_ Link Touched (Bool)
  • Údaje (Hidden)_ Child Cache (LinkList)
  • Údaje (Hidden)Colored Elements (LinkSubHidden)
  • ÚdajeLink Transform (Bool)

Alignment

  • ÚdajeBase: Objekt tvaru
  • ÚdajePathObj: Objekt trasy
  • ÚdajePathSubs: Subelementy(hrany) objektu trasy, které budou použity jako trasa
  • ÚdajeCount: Počet kopií tvaru
  • ÚdajeXlate: Vektor posunutí
  • ÚdajeAlign: Hodnota True pro zarovnání tvarů podle trasy, False pro ponechání tvarů podle jejich původní orientace.

Objects

  • ÚdajeBase (LinkGlobal): specifies the object to duplicate in the array.
  • ÚdajeCount (Integer): specifies the number of elements in the array.
  • ÚdajeExpand Array (Bool): specifies whether to expand the array in the Tree view to enable the selection of its individual elements. Only available for Link arrays.
  • ÚdajeFuse (Bool): specifies if overlapping elements in the array are fused or not. Not used for Link arrays. introduced in version 1.0
  • ÚdajePath Object (LinkGlobal): specifies the object to be used for the path. It must contain Edges in its Part TopoShape.
  • ÚdajePath Subelements (LinkSubListGlobal): specifies a list of edges of the ÚdajePath Object. If supplied only these edges are used for the path.

View

Link

The properties in this group, with the exception of the inherited property, are only available for Link arrays. See Std LinkMake for more information.

  • PohledDraw Style (Enumeration)
  • PohledLine Width (FloatConstraint)
  • PohledOverride Material (Bool)
  • PohledPoint Size (FloatConstraint)
  • PohledSelectable (Bool): this is an inherited property that appears in the Selection group for other arrays
  • PohledShape Material (Material)

Base

The properties in this group, with the exception of the inherited property, are only available for Link arrays. See Std LinkMake for more information.

  • Pohled (Hidden)Child View Provider (PersistentObject)
  • Pohled (Hidden)Material List (MaterialList)
  • Pohled (Hidden)Override Color List (ColorList)
  • Pohled (Hidden)Override Material List (BoolList)
  • Pohled (Hidden)Proxy (PythonObject): this is an inherited property.

Display Options

The properties in this group are inherited properties. See Part Feature for more information.

  • PohledBounding Box (Bool): this property is not inherited by Link arrays.
  • PohledDisplay Mode (Enumeration): for Link arrays it can be Link or ChildView. For other arrays it can be: Flat Lines, Shaded, Wireframe or Points
  • PohledShow In Tree (Bool)
  • PohledVisibility (Bool)

Draft

  • PohledPattern (Enumeration): not used.
  • PohledPattern Size (Float): not used.

Object style

The properties in this group are not inherited by Link arrays.

Scripting

Skriptování

Nástroj TrasovéPole může být využit v makrech a z konzoly Pythonu použitím následující funkce:

path_array = make_path_array(base_object, path_object,
                             count=4, extra=App.Vector(0, 0, 0), subelements=None,
                             align=False, align_mode="Original", tan_vector=App.Vector(1, 0, 0),
                             force_vertical=False, vertical_vector=App.Vector(0, 0, 1),
                             use_link=True)
  • Rozloží požadovaný počet (count) kopií objektu shapeobject podél trasy pathobject nebo subobject (vybrané hrany) pathobjectu. Volitelně posune každou kopii ve směru a vzdálenosti podle FreeCAD.Vectoru pro nastavení rozdílu mezi středem tvaru a referenčním bodem tvaru. Volitelně zarovná baseobject tangenciálně/normálně/binormálně k trase.

Příklad:

import FreeCAD as App
import Draft

doc = App.newDocument()

p1 = App.Vector(500, -1000, 0)
p2 = App.Vector(1500, 1000, 0)
p3 = App.Vector(3000, 500, 0)
p4 = App.Vector(4500, 100, 0)
spline = Draft.make_bspline([p1, p2, p3, p4])
obj = Draft.make_polygon(3, 500)

path_array = Draft.make_path_array(obj, spline, 6)
doc.recompute()

wire = Draft.make_wire([p1, -p2, -p3, -p4])
path_array2 = Draft.make_path_array(obj, wire, count=3, extra=App.Vector(0, -500, 0), subelements=["Edge2", "Edge3"], align=True, force_vertical=True)
doc.recompute()