![]() The default method for creating the line is the two-point method: you specify two points to define the orientation. ![]() You can specify its orientation in several ways. You may want to create infinite lines on a construction line layer that can be frozen or turned off before plotting.Ī construction line () can be placed anywhere in three-dimensional space. You can move, rotate, and copy infinite lines just as you can move, rotate, and copy other objects. Therefore, their infinite dimensions have no effect on zooming or viewpoints, and they are ignored by commands that display the drawing extents. Infinite lines do not change the total area of the drawing. User's Guide > Create and Modify Objects > Draw Geometric Objects > Draw Construction and Reference Geometry >Ī wealth of free AutoLISP programs and functions to demonstrate a sample of the work by Lee Mac Programming.įor example, you can use construction lines to find the center of a triangle, prepare multiple views of the same item, or create temporary intersections to use for object snaps.
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