TANC ( Tangent to Construction Circle -- for 2nd point location)

Tool summary :

• TANC stands for "Tangent to Construction Circle." It can be used to add a construction line or a straight grid line that is tangent to a construction circle.
• TANC can add the 2nd point of the construction line or straight grid line , but not the first point. The first point must be added using a different Locate option.
• The construction circle can be a perfect circle or an ellipse.
• See the examples and the step-by-step instructions .

Also see :

• Modeling and the Drawing Editor (where TANC can be found)
• Construction circle (must exist on screen for TANC to function)
• X-Y-Z display (shows the point's coordinates)
• Offset Controls (affect TANC )
• Annotation text ( Display Options in Modeling )
• Annotation text ( Display Options in the Drawing Editor )

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   Examples :

The red construction line was located using INCL , then TANC . In effect, locating the same point twice.

Here's a red construction line that is tangent to an elliptical construction circle.

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   Step-by-step instructions :

TANC is a Locate option that can be used in Modeling or the Drawing Editor to add a construction line that is tangent to a construction circle. TANC can only be used to add the 2nd point of the construction line. The first point must be added using a different Locate option. The construction circle can be a perfect circle or an ellipse. The following instructions assume that you are using a 3-button mouse. A construction circle must exist for TANC to function.

	1 . Invoke Construction Line Add .
	2 . With any of the Locate options for point location selected , place the mouse pointer ( ) so the target ( ) snaps to the point you want, then left-click ( Locate ).
	3 . When the status line prompts, " Locate second point ," select TANC , Left-click ( Locate ) when the target ( ) snaps to the nearest point of tangency on the construction circle.
	4 . The construction line is drawn tangent to the construction circle through the points that you located. Right-click ( Return ) if you are done.

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