=== Object Snap Points & EM.Cube's Snap Modes===
Every [[EM.Cube]] standard geometric object has a number of '''Snap Points''' that are strategically located on it for a variety of purposes. Snap points are very important in [[EM.Cube]]. Many CAD operations and object transformation tools work based on snap points. Each solid object in general has a number of faces, edges and vertices (or nodes).A surface object normally has one face, a number of edges and vertices. A curve usually has one edge and two or more nodes. In most [[EM.Cube]] objects, the centers of faces, the midpoints of edges and the nodes or vertices constitute the snap points of that object. For example, a Box has six face snap points, twelve edge snap points and eight vertex snap points.
When you start the [[EM.Cube]] application, it is by default in the '''Snap to Object''' mode. This means that when you move the mouse over the surface of an object (without clicking), the object becomes highlighted with a translucent shade of the selection color (yellow by default). If the object is a solid, you can see inside of the object. If you get close to a vertex, the mouse snaps to that vertex. Similarly, if you get close to the middle of an edge, the mouse snaps to the edge's midpoint. Or on a face, the mouse snaps to the center of that face. When the mouse snaps to an object's snap point, a small circle in the complementary selection color (dark blue by default) appears on the snapped point. We refer to this as a "Mouse-Over" state. At this state, the '''Status Bar''' reports the coordinates of the snapped point. If the snapped point is the center of a face, the perimeter of that face is also highlighted in the same color. If the snapped point is the midpoint of an edge, that edge is also highlighted. If you move the mouse slightly away from the snapped point, it unsnaps and starts moving freely on the work plane until it snaps again to another available snap point.