ZwCAD
            2006i, More Stable & Speed Up 
            
           
           

            

            

            
           
           

            

            
ZwCAD Inc.
            announced the new release of ZwCAD 2006i on October 31, 2006. We,
            as ZwCAD Inc., are pleased to have your kindly attention to its
            powerful new features and enhancements. 
            
The new
            release version-ZwCAD 2006i, has been improved many supported features
            and added over 50 new ones. Improvements include AutoLISP, ttf font
            display, Offset, drawing mark, etc; new features contain VBA
            manager, Oselect, WMF import, PLT file import to CDW file and so
            on. With the great enhancements, ZwCAD 2006i is more stable than
            ever before and also offers better features for drafting. It is
            your best alternative to AutoCAD® with attractive price. 
            
Whatever
            you are going to have a try or own any license of ZwCAD, we will
            provide you excellent support and services. Are you ready to try it
            now, please click: http://www.zwcad.org/en/download.asp
            
           
           

            

            About ZwCAD
            
           
           

            

            

            
           
           

            

            
ZwCAD
            Incorporation is a world leading CAD software provider and has over
            15 software patents. We mainly offer a reliable DWG-based CAD
            solution-ZwCAD at an affordable price. ZwCAD, which based on
            IntelliCAD, is a low-cost AutoCAD® alternative for designers,
            architects and engineers. Through years' improvements and
            developments, ZwCAD has been added a great many unique features and
            completed thousands of projects. 
            
           
           

            

            

            
           
          



           

            

            
 
            
           
           

            

            
Tutorial 5: 
            
           
           

            

            

            
           
           

            

            
Draw Spline 
            
           
           

            

            
The SPLINE
            command creates a particular type of spline known as a nonuniform
            rational B-spline (NURBS) curve. A NURBS curve produces a smooth
            curve between control points. 
            
           
           

            

            

            
           
           

            

            

            
           
           

            

            
You create
            splines by specifying points. You can close the spline so that the
            start and endpoints are coincident and tangent. 
            
Tolerance
            describes how closely the spline fits the set of fit points you
            specify. The lower the tolerance, the more closely the spline fits
            the points. At zero tolerance, the spline passes through the
            points. You can change the spline-fitting tolerance while drawing
            the spline to see the effect. 
            
You can use
            two methods for creating splines: 
            
           
           

            

            

            
            

            
Create
            spline curves with the Spline option of PEDIT to smooth existing
            polylines created with PLINE.
            
           
           

            

            

            
            

            
Create
            splines, which are NURBS curves, with SPLINE. Drawings containing
            splines use less memory and disk space than those containing
            spline-fit polylines of similar shape. 
            
           
           

            

            


            You can easily convert spline-fit polylines into true splines with
            SPLINE. 
            
           
           

            

            

            
           
           

            

            
If you have
            further questions, please feel free to contact us at mail to: sales@zwcad.com 
            
           
           

            

            
Kind Regards, 
            
           
           

            

            
ZwCAD Team 

            Guangzhou Chinaweal Longteng Technology Co., Ltd. 

            Rm.508, No. 886, Tianhe
              North Road , 

Guangzhou 510 635, P. R. China
            


            http://www.zwcad.org

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