Before deleting a geometric entity user must be aware of the hierarchy of solid model and finite element model entities. A lower order entity cannot be deleted if it is attached to a higher-order entity. Thus, a point cannot be deleted if it is attached to a line, an area cannot be deleted if it has been meshed or belongs to a structural element, a volume was involved in a boolean operation and so forth.
Geometric attributes
Once the geometric entity is created geometric attributes are generated as well. These attributes depend on each entity:
Bounding box X-axis
It refers to the X-axis coordinate pair of a projected box with the smallest measure (area, volume) within which all the points lie.
Bounding box Y-axis
It refers to the Y-axis coordinate pair of a projected box with the smallest measure (area, volume) within which all the points lie.
Bounding box Z-axis
It refers to the Z-axis coordinate pair of a projected box with the smallest measure (area, volume) within which all the points lie.
Volume
Volume of the entity.
Number of edges
Number of edges.
Number of vertices
Number of vertices.
Number of faces
Number of faces.
Primitives button
Create a primitive volume
A solid is a volume that is bounded by a number of faces. Solid faces are bounded by edges and solid edges are bounded by solid vertices.
The type of volume and data to be created depends on the current primitive volume types, that are:
Cylinder
A cylinder defined by the center of its base, radius and height or by the centers of its bases and a point on its lateral surface. A cylindrical sector can be created by changing the truncate angle (by default 360º).
Cone
A cone defined by the center of its base and radius.
Sphere
A sphere defined by its center point and radius. A spherical sector can be created by changing the angle in the U parametric direction (by default 360º) and the angle in V parametric direction (by default 180º).
Box
A box defined by its vertex and dimensions or by two opposite vertices.
Torus
A torus is defined by the coordinates of the center, an axis, both of the radius and an ending angle. A toroidal sector can be created by changing the portion angle (by default 360º).
