Snap to endpoints, midpoints and intersections

Snap to a point

1. Start a tool that needs a point, for example 3D Polyline on the toolbar.

2. Move the mouse over a line in the drawing. A red marker shows where VCAD snaps, and its shape shows what it snaps to. At the bottom, to the right of the message line, X, Y and Z turn blue and show the point's coordinates and elevation.

3. Click while the marker is there. The point lands exactly on the marker.

Choose what it snaps to

1. Right-click Snap, the button with the magnet on the toolbar.

   

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2. Click what you want to turn on or off.

3. To snap to one of them only, click None first and then the one you want.

In the list	Snaps to	The marker
Endpoint	the ends and the vertices of a line
Midpoint	the middle of a line segment
Center	the center of a circle and a survey point
Perpendicular	the spot on a line where the new line meets it at a right angle
Intersection	the spot where two lines cross
Nearest	the spot on a line nearest the mouse

Turn snap off and on again

1. Click Snap on the toolbar, or press F3. The magnet is crossed out.

   

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2. Click Snap again, or press F3.

Lock the angle

1. Right-click Snap.

2. Click Angle Lock.

3. Click the number to the right of Angle Lock until it shows the angle you want. The number switches between 15°, 30° and 45°.

4. Start a tool that draws lines, for example 3D Polyline on the toolbar or a line in one of the palettes.

5. Click the first point in the drawing. Guide lines run out from the point for every angle.

6. Move the mouse close to a guide line. The line follows it, and the guide line lights up.

   

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The angles are counted from the previous line segment, and the first segment is counted from the horizontal.