tailieunhanh - Beginning AutoCAD 2002 Episode 7

Tham khảo tài liệu 'beginning autocad 2002 episode 7', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Hatching 173 1 2 3 4 5 6 7 8 1 2 3 4 5 6 Text and hatching Text which is placed in an area to be hatched can be displayed with a clear border around it. Refer to Fig. B and draw four 50 diameter circles. Add any suitable text as shown. This text can have any height rotation angle position etc. With the HATCH icon a Type Predefined STARS with scale and angle 0 b Pick Points and pick any point in first circle c Preview-right click-OK and result as fig. k . Use the HATCH icon with a Type Predefined BRSTONE scale 1 angle 20 b Pick Points and pick any point inside second circle c Preview-right click-OK and result as fig. l . HATCH icon using a User defined at 45 with 4 spacing b Select Objects and pick third circle only c Preview etc. - fig. m . Final HATCH with a User defined angle 45 spacing 4 b Select Objects and pick fourth circle AND text items c Preview etc. - fig. n . Associative hatching works with text items fig. o moving and scaling the two items of text fig. p rotating the text item fig. q mirroring the text item then erase part of it. Save if required - the exercise is complete and will not be used again. Summary Hatching is a draw command activated a from the menu bar b by icon selection c with keyboard entry - HATCH or BHATCH. AutoCAD has three types of hatch pattern a User-defined this is line only hatching. The user specifies the angle for the hatch lines the spacing between these lines and whether the hatching is to be single or double . cross-hatching. b Predefined these are stored hatch patterns. The user specifies the pattern scale and angle. c Custom are patterns designed by the user but are outside the scope of this book. The hatch boundary can be determined by a selecting the objects which make the boundary b picking an internal point within the hatch area. Hatching is a single object but can be exploded. AutoCAD 2002 has associative hatching which allows added hatching to alter when the hatch boundary changes. Added hatching can be