Mechanical EntitySnap Modes¶

Use EntitySnaps (ESnaps) to detect and snap to points on drawing entities, for example, end points, intersections, and center points. Snapping to a point provides an exact position for drawing and editing commands.

A distinction is made between two types of EntitySnaps:

Geometry EntitySnaps
Reference EntitySnaps

Geometry EntitySnaps

EntitySnap Mode	Abbreviation	Description
Nearest	nea	Snaps to the next situated point of an entity when at least one point of the entity lies within the borders of the GravityBox. If you select a point without using Nearest mode, the selected point might not be on the desired entity. This mode ensures that the entities share a point with the specified entity.
End	end	Snaps to the end point of a Line, Arc or other entity. Planes or edges of solids are also interpreted as lines, and end points of planes and solids can be recognized by Endpoint mode. The mode does not differentiate between the start or end point of an entity.
Midpoint	mid	Snaps to the mid point of a Line or an Arc. Planes, or the edges of solids, are also interpreted as lines and can be snapped to with the Midpoint mode.
Center	cen	Snaps to the center of a Circle, Arc, Ellipse, or elliptical arc.
Geometric center	gce	Snaps to the centroid of a closed Polyline, planar 3D Polyline, Spline, Region, or planar face of a 3D Solid object.
Quadrant	qua	Snaps to the nearest quadrant of a Circle, Arc, Ellipse, or elliptical arc. Quadrants refer to the points of a Circle, Arc or Ellipse on the circumference at 0°, 90°, 180° and 270°. These are the intersecting points of the axes of a coordinate system upon whose origin lies at the center of the Circle or Arc with the circumference of the Circle or Arc. Only the next visible quadrant of an Arc or elliptical arc can be snapped.
Node	nod	Snaps to a point entity, dimension definition point, or dimension text origin.
Insert	ins	Snaps to the insertion point of a Block insertion, a BlockAttribute, or a Text entity.

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Reference EntitySnaps

EntitySnap Mode	Abbreviation	Description
Extension	ext	Snaps to the extension of an entity or to the intersection of the extension of two entities. A temporary extension line or arc displays as a dotted line when you pass the pointer over the end point of entities and lets you specify a point for the extension. To snap to the extension of two entities, first move the pointer over the end point of an entity. The entity is marked for extension. Then move the pointer over the end point of another entity. This entity is marked too. Finally, move the pointer near the intersection of the extensions. An X indicates the intersection. Click to accept the snap.
Intersection	int	Snaps to the intersection points of Lines, Arcs, and Circles, or any combination of them.
Parallel	par	Constrains a linear entity to be parallel to another linear entity. When prompted to specify a second or next point when drawing a vector, move the pointer over an existing linear entity until you see the Parallel EntitySnap marker. Move the pointer close to a parallel position. A dotted line appears, indicating the parallel ESnap. Click the second point of the line on the parallel.
Perpendicular	per	Requires that a start point for a function has been selected. Activating the EntitySnap mode relates this point to the snapped point. For instance, select the end point for the perpendicular, and Perpendicular mode is activated. The result is a perpendicular Line from the end point to the selected entity.
Tangent	tan	Requires that a start point for a function has been selected. Activating the EntitySnap mode relates this point to the snapped point. For instance, to create a Line tangent to a Circle, select the end point for the tangent Line, and Tangent mode is activated. The result is a tangent Line from the end point to the chosen entity.
Visual Intersection	appint	Snaps to the location in the plan view of the current coordinate system where two entities would intersect if they were projected onto the plan view. In 3D space, Visual Intersection mode (also known as Apparent Intersetion mode) snaps to two entities that might or might not actually intersect, whereas, in 2D drafting, it snaps to the projected intersection of two Line entities. If the GravityBox covers only one drawing entity when snapping, you are prompted to select a second entity.
Arc Radial Lines	arcr	Snaps to a point on the phantom line that passes through an arc center point and one of the arc endpoints.
Arc Tangent Lines	arct	Snaps to a point on the phantom line that passes tangentially through an arc endpoint.
Symmetry	symp	Snaps symmetrically to a specified line.