Modify Geometry

You can use commands on the Draw tab to modify existing objects. Keep in mind that the objects can be of two different types:

Use as Construction: When this box is activated, the added geometry object is not part of the mesh. Instead, it is used as an aid to build a mesh (either an automatic 2D meshed region, or structured mesh, both described later). For example, four construction lines connected together to form a rectangle do not create a plate element when the analysis is performed. Construction arcs, circles, and splines are shown as their theoretical smooth objects. Construction objects are listed in the tree view either under the drawing plane/sketch branch or under the <3D Objects> branch, from which the objects can be modified (change the coordinates of the defining points, change the attributes, and so on). (See the page Drawing Planes for the distinction between a drawing plane/sketch and a 3D object, and for methods to move an item from 3D space to a sketch.)
Regular Lines: When the added object is not a construction object, it will be used as part of the mesh. For example, four lines connected together to form a rectangle do create a plate element when the analysis is performed. Since the objects are part of the mesh, non-construction arcs, circles, and splines are immediately divided into straight line segments when they are added to the model. That is, the arcs and circles are meshed.
See the page Tools: Modify Attributes and Duplicate for instructions on changing an item from a construction object to a regular line and vice versa.

Some of the commands work on both types of objects, but a few only work on one type. Since most of the commands work on lines or construction objects, the Select mode must be set to Lines or Construction Objects to activate the commands.

Note: The FEA Editor prevents identical lines from being created, where identical means that the lines have the same end points and are on the same part number. Whether two end points are the same or not is determined by the Draw Modify Set Search Tolerance dialog. This rule has an effect when adding geometry, copying, meshing, and so on.