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BABACAD SUPPORTS TANGENT TO ARC HOW TO

Quadrant bearing is entered by typing a hyphen ( -) and the number of the quadrant.

Keep the following in mind when working with the numeric keypad: To enter a traverse with shortcuts, the keystrokes on the numeric keypad are as follows: In the traverse grid, the default curve parameters are set to Radial for the Direction field and Arc Length for the curve parameter field.

Straight line, 80° counterclockwise from previous bearing, 45 feet.

Tangent curve turning right, radius 25, delta 45.

Curve with radial bearing, S41☂6'06'"E turning right, radius 25, delta (central angle) 45.

Straight line, 20° clockwise from previous bearing, 45 feet.

Traverse with radial bearing curve and curve parameter shortcuts

* ENTER 0 ENTER 25 ENTER 50 ENTER (The * indicates the direction should be tangent to the previous direction or tangent to the exit of a curve.).

To enter a traverse starting with a nontangent curve turning right, the keystrokes on the numeric keypad are as follows:

Tangent curve turning right, radius 25 feet, arc length 50 feet.

Nontangent curve with chord bearing, radius 50 feet, chord length 25 feet.

BABACAD SUPPORTS TANGENT TO ARC HOW TO

The following examples show how to override the curve parameters: Traverse starting with a nontangent curve (quadrant bearing, feet) In this case, the * indicates that the curve should be tangent, even though the default curve direction is set to Chord.)

* ENTER 0 ENTER 8.2 ENTER 11.6 ENTER(The * indicates the direction should be tangent to the previous direction or tangent to the exit of a curve.359.45.14 ENTER 14.2* ENTER (The * indicates that the traverse should close onto its start point regardless of the specified closure tolerance).To enter a traverse using north azimuth, meters, and a curve turning right, the keystrokes on the numeric keypad are as follows: Exit curve tangent, straight line, 32 meters.Tangent curve right, radius 8.2 meters, chord length 11.6 meters.* ENTER 0 ENTER -50 ENTER 60 ENTER (The * indicates the direction should be tangent to the previous direction or tangent to the exit of a curve.With the default curve parameters set to Chord for the curve direction field and Arc Length for the curve parameter field, the same traverse would be entered as follows: To enter a traverse using quadrant bearing, feet, and with a curve turning left, the keystrokes on the numeric keypad are as follows: In the traverse grid, the default curve parameters are set to Tangent for the Direction field and Arc Length for the curve parameter field. Exit curve tangent, straight line, 50 feet.Tangent curve left, radius 50 feet, arc length 60 feet.The following traverse examples show data entry using the numeric keypad with shortcuts and overrides: Traverse with quadrant bearing and feet See the Curve overrides subsection under the Data entry shortcuts section below. To change the default curve parameters, click the drop-down arrow in the Arc Length field and choose Chord Length or Delta Angle.Ĭurve parameters in the traverse grid can be changed with overrides at any time. The default curve parameters for new projects are radius and arclength.

Tip:You can override the default curve direction type by using curve overrides-for example, to override tangent direction with the radial direction type rb after entering your curve direction, such as 41-56-06rb.ĭefault curve parameters can also be set for a project.