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- Coordinates for 3D CAD Modeling
- Geometric Entities
- 4.1 Manually Bisecting a Line or Circular Arc
- 4.2 Drawing Tangents to Two Circles
- 4.3 Drawing an Arc Tangent to a Line or Arc and Through a Point
- 4.4 Bisecting an Angle
- 4.5 Drawing a Line through a Point and Parallel to a Line
- 4.6 Drawing a Triangle with Sides Given
- 4.7 Drawing a Right Triangle with Hypotenuse and One Side Given
- 4.8 Laying Out an Angle
- 4.9 Drawing an Equilateral Triangle
- 4.10 Polygons
- 4.11 Drawing a Regular Pentagon
- 4.12 Drawing a Hexagon
- 4.13 Ellipses
- 4.14 Spline Curves
- 4.15 Geometric Relationships
- 4.16 Solid Primitives
- 4.17 Recognizing Symmetry
- 4.18 Extruded Forms
- 4.19 Revolved Forms
- 4.20 Irregular Surfaces
- 4.21 User Coordinate Systems
- 4.22 Transformations
- Key Words
- Chapter Summary
- Skills Summary
- Review Questions
- Chapter Exercises
This chapter is from the book
This chapter is from the book
This chapter is from the book
This chapter is from the book
4.5 Drawing a Line through a Point and Parallel to a Line
With given point P as center, and any convenient radius R, draw arc CD to intersect the given line AB at E (Figure 4.27). With E as center and the same radius, strike arc R′ to intersect the given line at G. With PG as radius and E as center, strike arc r to locate point H. The line PH is the required parallel line.
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4.27 Drawing a Line through a Point
Using AutoCAD, you can quickly draw a new line parallel to a given line and through a given point using the Offset command with the Through option. Another method is to use the Parallel object snap while drawing the line as shown in Figure 4.28. You can also copy the original line and place the copy through the point.
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4.28 Drawing a Line through a Point