Before you begin creating 2D geometry in 2D Layout for 3D Design, make
sure you are familiar with concepts such as:
About 2D Geometry Creation in 2D Layout for 3D Design
Remember the following points:
- Construction elements contained in 2D geometry are displayed only in
the current view (in the 2D window).
- To ensure that 2D geometry is not altered once it has been created,
geometry edition is only allowed in the active view. Therefore, if you
want to edit or move 2D geometry, you need to activate the view which
contains the geometry. You can prevent 2D geometry from being
involuntarily moved (and distorted) in active views by clearing the
Allow direct manipulation check box from Tools > Options > Mechanical
Design > Drafting > Geometry tab.
- While creating 2D geometry, you can create detected constraints
automatically by activating the Create Detected Constraints
in the Tools toolbar. You can view the created constraints by
activating the Show Constraints
in Visualization toolbar..
- You can create as many 2D geometry elements of a given type as needed
by double-clicking the appropriate icon (instead of single-clicking it).
About Smartpick on 2D/3D Background
From R17, in addition with the elements of the active view, Smartpick takes into account the following elements:
2D geometries sketched in other views and visible through edited view background
3D points, vertex, curves, edges visible through edited view background
Use Smartpick on 2D/3D background as usual (refer to Creating
Geometry Using SmartPick in the Sketcher user guide).
While using Smartpick to create geometries with any Sketcher command, Smartpick allows you to pick their position or direction directly on background elements.
According to existing geometry
The following commands directly manage the selection of background entities. This means that when creating a new geometry, you can define inputs by picking background elements.
Intersection Point (on
line, circle, ellipse but not on spline)
Line Normal to curve
Offset (only with the
Project 3D element
Intersect 3D element
Project 3D silhouette edges
Rotate and Scale commands does not transform background elements,
transformations can be defined using Smartpick on background elements.
- Background elements selection:
- The trap selection does not detect elements of the background. This limitation prevents the selection of an undetermined set of projected
objects. It also prevents the generation of numerous projections on view plane that would reduce commands performances.
- For the
same reasons, Smartpick only takes into account the last background elements flown over by the mouse cursor. Each time
you launch a new command, move the mouse over the concerned elements.
- Background elements must be selected after the command.
First you click the command, then you select elements.
- Geometries created on background elements are not constrained. For example, an intersection point created on background edges has no
- Constraints available on a background element can differ from the constraints available on the original element (especially for a 2D
background element). For example, an arc of spline in the background can be projected as an arc of circle projection on view plane, which will make concentric
constraint available by Smartpick.
- Contextual menu:
General commands available via the contextual menu on selectable elements cannot be performed on background elements.
Background points are not taken into account in the compute of isobary center.
does not detect surface, silhouette edges, bodies nor FTA construction geometries.
- These Sketcher commands do not manage nor take
|Points by using coordinates
|Circle using coordinates