Draft PathArray/cs

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.



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.

Alignment
The alignment of the elements in a Draft PathArray depends on the properties of the array, and the position and orientation of the subelements of the source object, relative to its local coordinates system. The of the source object is ignored. If the property of the array is set to  the orientation of the array elements is identical to that of the original subelements. If it is set to 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 property of the array. Other array properties involved in the alignment include, and.

.

Align Mode
Three modes are available:

Original
This mode comes closest to the single 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  but includes the possibility to pre-rotate the source object by specifying a.

Force Vertical and Vertical Vector
These properties are only available if is  or. If is set to  the local coordinate system is calculated in a different manner. The 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
The properties in this group are only available for Link arrays. See Std LinkMake for more information.




 * : Objekt tvaru
 * : Objekt trasy
 * : Subelementy(hrany) objektu trasy, které budou použity jako trasa
 * : Počet kopií tvaru
 * : Vektor posunutí
 * : Hodnota True pro zarovnání tvarů podle trasy, False pro ponechání tvarů podle jejich původní orientace.


 * : specifies the object to duplicate in the array.
 * : specifies the number of elements in the array.
 * : specifies whether to expand the array in the Tree view to enable the selection of its individual elements. Only available for Link arrays.
 * : specifies the object to be used for the path. It must contain in its Part TopoShape.
 * : specifies a list of edges of the . If supplied only these edges are used for the path.

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


 * : this is an inherited property that appears in the Selection group for other arrays
 * : this is an inherited property that appears in the Selection group for other arrays
 * : this is an inherited property that appears in the Selection group for other arrays
 * : this is an inherited property that appears in the Selection group for other arrays
 * : this is an inherited property that appears in the Selection group for other arrays

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


 * : this is an inherited property.
 * : this is an inherited property.
 * : this is an inherited property.
 * : this is an inherited property.
 * : this is an inherited property.

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


 * : this property is not inherited by Link arrays.
 * : for Link arrays it can be or . For other arrays it can be:, ,  or


 * : not used.
 * : not used.

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

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


 * 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: