用ARX创建线型

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问题：
How can I create a linetype using ARX?

解答：
The sample code below creates a linetype using ARX:

1. 
   
2. #include "dbmain.h"         
   
3. #include "dbsymtb.h"
   
4. 
   
5. void utilsarxtest ()     {
   
6.     AcDbLinetypeTable *pLtypeTable =NULL ;
   
7.     // get the linetype table from the drawing
   
8.     if ( acdbHostApplicationServices()->workingDatabase()->getLinetypeTable (pLtypeTable, AcDb::kForWrite) ==
   
9. Acad::eOk ) {
   
10.         AcDbLinetypeTableRecord *pLtypeTableRecord =new
    
11. AcDbLinetypeTableRecord ;
    
12.         // set all of the properties of the linetype table record.
    
13.         pLtypeTableRecord->setAsciiDescription ("T E S T -") ;
    
14.         pLtypeTableRecord->setPatternLength (0.75) ;
    
15.         pLtypeTableRecord->setNumDashes (2) ;
    
16.         pLtypeTableRecord->setDashLengthAt (0, 0.5) ;
    
17.         pLtypeTableRecord->setDashLengthAt (1,-0.25) ;
    
18.         pLtypeTableRecord->setName ("ASTESTER") ;
    
19. 
    
20.         AcDbObjectId tmpId ;
    
21.         // add the pLtypeTableRecord to the linetype table
    
22.         if (pLtypeTable->add (tmpId, pLtypeTableRecord)==Acad::eOk){
    
23.             pLtypeTableRecord->close () ;
    
24.         } else {
    
25.             delete pLtypeTableRecord ;
    
26.         }
    
27.         // close everything up
    
28.         pLtypeTable->close () ;
    
29.     }
    
30. }
    

<br /> #include "dbmain.h"         <br /> #include "dbsymtb.h"<br /> <br /> void utilsarxtest ()     {<br />     AcDbLinetypeTable *pLtypeTable =NULL ;<br />     // get the linetype table from the drawing<br />     if ( acdbHostApplicationServices()->workingDatabase()->getLinetypeTable (pLtypeTable, AcDb::kForWrite) ==<br /> Acad::eOk ) {<br />         AcDbLinetypeTableRecord *pLtypeTableRecord =new<br /> AcDbLinetypeTableRecord ;<br />         // set all of the properties of the linetype table record.<br />         pLtypeTableRecord->setAsciiDescription ("T E S T -") ;<br />         pLtypeTableRecord->setPatternLength (0.75) ;<br />         pLtypeTableRecord->setNumDashes (2) ;<br />         pLtypeTableRecord->setDashLengthAt (0, 0.5) ;<br />         pLtypeTableRecord->setDashLengthAt (1,-0.25) ;<br />         pLtypeTableRecord->setName ("ASTESTER") ;<br /> <br />         AcDbObjectId tmpId ;<br />         // add the pLtypeTableRecord to the linetype table<br />         if (pLtypeTable->add (tmpId, pLtypeTableRecord)==Acad::eOk){<br />             pLtypeTableRecord->close () ;<br />         } else {<br />             delete pLtypeTableRecord ;<br />         }<br />         // close everything up<br />         pLtypeTable->close () ;<br />     }<br /> }<br />

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