Набросок Массив по Траектории (Draft PathArray)
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| Расположение в меню |
|---|
| Черчение → Массив по направляющей |
| Верстаки |
| Draft, Arch |
| Быстрые клавиши |
| Нет |
| Представлено в версии |
| - |
| См. также |
| Массив |
Description
The Draft PathArray command creates a regular array from a selected object by placing copies along a path. Use the Draft PathLinkArray command to create a more efficient Link array instead. Except for the type of array that is created, Link array or regular array, the Draft PathLinkArray command is identical to this command.
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 BIM Workbench.
Draft PathArray
Usage
- Select the object you wish to array.
- Add the path object to the selection. It is also possible to select edges instead. The edges must belong to the same object and they must be connected.
- There are several ways to invoke the command:
- Press the
Path Array button.
- Draft: Select the Modification → Array Tools →
Path Array option from the menu.
- BIM: Select the Modify →
Path Array option from the menu.
- Press the
- The array is created.
- Optionally change the properties of the array in the Property View.
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 ДанныеAlign 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 ДанныеAlign Mode property of the array. Other array properties involved in the alignment include ДанныеTangent Vector, ДанныеForce Vertical and ДанныеVertical 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 ДанныеAlign 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 ДанныеAlign Mode Original but includes the possibility to pre-rotate the source object by specifying a ДанныеTangent Vector.
Force Vertical and Vertical Vector
These properties are only available if ДанныеAlign Mode is Original or Tangent. If ДанныеForce Vertical is set to true the local coordinate system is calculated in a different manner. The ДанныеVertical 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.
Notes
- Fused Link arrays are not displayed properly, in the 3D View their elements always appear unfused.
Properties
See also: Property View.
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.
- ДанныеScale (
Float) - Данные (Hidden)Scale Vector (
Vector) - ДанныеScale List (
VectorList) - Данные (Hidden)Visibility List (
BoolList) - Данные (Hidden)Placement List (
PlacementList) - Данные (Hidden)Element List (
LinkList) - Данные (Hidden)_ Link Touched (
Bool) - Данные (Hidden)_ Child Cache (
LinkList) - Данные (Hidden)_ Link Owner (
Integer) - Данные (Hidden)Colored Elements (
LinkSubHidden) - ДанныеLink Copy On Change (
Enumeration) - ДанныеLink Transform (
Bool)
Alignment
- ДанныеAlign (
Bool): specifies if the elements in the array are aligned along the path or not. If it isfalseall other properties in this group, except ДанныеExtra Translation, do not apply and are hidden. - ДанныеAlign Mode (
Enumeration): specifies the align mode, which can beOriginal,FrenetorTangent. - ДанныеExtra Translation (
VectorDistance): specifies an additional displacement for each element along the path. - ДанныеForce Vertical (
Bool): specifies whether to override the default normal direction with the value of ДанныеVertical Vector. Only used if ДанныеAlign Mode isOriginalorTangent. - ДанныеReverse Path (
Bool): specifies whether to walk the path backwards. introduced in 1.1 - ДанныеTangent Vector (
Vector): specifies the alignment vector. Only used if ДанныеAlign Mode isTangent. - ДанныеVertical Vector (
Vector): specifies the override for the default normal direction. Only used if ДанныеVertical Vector istrue.
Draft
- ДанныеAlways Sync Placement (
Bool)
Objects
- ДанныеBase (
LinkGlobal): specifies the object to duplicate in the array. - ДанныеExpand 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. - ДанныеFuse (
Bool): specifies if overlapping elements in the array are fused or not. introduced in 1.0 - ДанныеPath Object (
LinkGlobal): specifies the object to be used for the path. It must containEdgesin its Part TopoShape. - ДанныеPath Subelements (
LinkSubListGlobal): specifies a list of edges of the ДанныеPath Object. If supplied only these edges are used for the path. - ДанныеPlacement List (
PlacementList): the placement for each element. Appears in the Link group for Link arrays. introduced in 1.1
Spacing
- ДанныеCount (
Integer): specifies the number of elements in the array. - ДанныеEnd Offset (
Length): specifies the length from the end of the path to the last copy. Must be smaller than the length of the path minus the ДанныеStart Offset. introduced in 0.21 - ДанныеSpacing Mode (
Enumeration): specifies how elements are spaced. The options are: introduced in 1.1Fixed count: available path length (minus start and end offsets) is evenly divided to accommodate ДанныеCount elements.Fixed spacing: start at start offset and place new elements after traveling a fixed distance along the path.Fixed count and spacing: same asFixed spacing, but also stop at ДанныеCount elements.
- ДанныеSpacing Pattern (
FloatList): the spacing is multiplied by a corresponding number in this sequence. Only used if ДанныеUse Spacing Pattern istrue, otherwise hidden. introduced in 1.1 - ДанныеSpacing Unit (
Length): the base fixed distance between elements. Only used if ДанныеSpacing Mode isFixed spacingorFixed count and spacing, otherwise hidden. introduced in 1.1 - ДанныеStart Offset (
Length): specifies the length from the start of the path to the first copy. Must be smaller than the length of the path. introduced in 0.21 - ДанныеUse Spacing Pattern (
Bool): use repeating spacing patterns instead of uniform spacing. introduced in 1.1
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.
- ВидDraw Style (
Enumeration) - ВидLine Width (
FloatConstraint) - ВидOverride Material (
Bool) - ВидPoint Size (
FloatConstraint) - ВидSelectable (
Bool): this is an inherited property that appears in the Selection group for other arrays. - ВидShape 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.
- Вид (Hidden)Child View Provider (
PersistentObject) - Вид (Hidden)Material List (
MaterialList) - Вид (Hidden)Override Color List (
ColorList) - Вид (Hidden)Override Material List (
BoolList) - Вид (Hidden)Proxy (
PythonObject): this is an inherited property.
Display Options
The properties in this group are inherited properties. See Part Feature for more information.
- ВидBounding Box (
Bool): this property is not inherited by Link arrays. - ВидDisplay Mode (
Enumeration): for Link arrays it can beLinkorChildView. For other arrays it can be:Flat Lines,Shaded,WireframeorPoints. - ВидShow In Tree (
Bool) - ВидVisibility (
Bool)
Draft
- ВидPattern (
Enumeration): not used. - ВидPattern Size (
Float): not used.
Object style
The properties in this group are not inherited by Link arrays.
Scripting
See also: Autogenerated API documentation and FreeCAD Scripting Basics.
To create a path array use the make_path_array method (introduced in 0.19) of the Draft module. This method replaces the deprecated makePathArray method.
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)
base_objectis the object to be arrayed. It can also be theLabel(string) of an object in the current document.path_objectis the path object. It can also be theLabel(string) of an object in the current document.countis the number of elements in the array.extrais a vector that displaces each element.subelementsis a list of edges ofpath_object, for example["Edge1", "Edge2"]. If supplied only these edges are used for the path.- If
alignisTruethe elements are aligned along the path depending on the value ofalign_mode, which can be"Original","Frenet"or"Tangent". tan_vectoris a unit vector that defines the local tangent direction of the elements along the path. It is used whenalign_modeis"Tangent".- If
force_verticalisTruevertical_vectoris used for the local Z direction of the elements along the path. It is used whenalign_modeis"Original"or"Tangent". - If
use_linkisTruethe created elements are App Links instead of regular copies. path_arrayis returned with the created array object.
Example:
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()
- Drafting: Line, Polyline, Fillet, Arc, Arc From 3 Points, Circle, Ellipse, Rectangle, Polygon, B-Spline, Cubic Bézier Curve, Bézier Curve, Point, Facebinder, ShapeString, Hatch
- Annotation: Text, Dimension, Label, Annotation Styles, Annotation Scale
- Modification: Move, Rotate, Scale, Mirror, Offset, Trimex, Stretch, Clone, Array, Polar Array, Circular Array, Path Array, Path Link Array, Point Array, Point Link Array, Edit, Highlight Subelements, Join, Split, Upgrade, Downgrade, Convert Wire/B-Spline, Draft to Sketch, Set Slope, Flip Dimension, Shape 2D View
- Draft Tray: Working Plane, Set Style, Toggle Construction Mode, AutoGroup
- Snapping: Snap Lock, Snap Endpoint, Snap Midpoint, Snap Center, Snap Angle, Snap Intersection, Snap Perpendicular, Snap Extension, Snap Parallel, Snap Special, Snap Near, Snap Ortho, Snap Grid, Snap Working Plane, Snap Dimensions, Toggle Grid
- Miscellaneous: Apply Current Style, New Layer, Manage Layers, New Named Group, SelectGroup, Add to Layer, Add to Group, Add to Construction Group, Toggle Wireframe, Working Plane Proxy, Heal, Show Snap Toolbar
- Additional: Constraining, Pattern, Preferences, Import Export Preferences, DXF/DWG, SVG, OCA, DAT
- Context menu:
- Most objects: Edit
- Layer container: Add New Layer, Reassign Properties of All Layers, Merge Layer Duplicates
- Layer: Activate Layer, Reassign Properties of Layer, Select Layer Contents
- Text and label: Open Links
- Wire: Flatten
- Working plane proxy: Save Camera Position, Save Visibility of Objects
- Начинающим
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- Помощь: Учебники, Видео учебники
- Верстаки: Std Base, Arch, Assembly, CAM, Draft, FEM, Inspection, Mesh, OpenSCAD, Part, PartDesign, Points, Reverse Engineering, Robot, Sketcher, Spreadsheet, Surface, TechDraw, Test Framework
