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几何尺寸与公差论坛------致力于产品几何量公差标准GD&T (GDT:ASME)|New GPS(ISO)研究/CAD设计/CAM加工/CMM测量 (http://www.dimcax.com/hust/index.php)
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-   -   【转帖】oddbsystemservices (http://www.dimcax.com/hust/showthread.php?t=17613)

yang686526 2009-05-06 08:14 PM

【转帖】oddbsystemservices
 
oddbsystemservices
oddbsystemservices
how many of the members of this do i need to provide implementations of (in a derived class) which don't return null pointers, etc. i don't require rendering, just access to the data in a dwg file and conversion of a dxf file to a dwg file. i've tried making members such as loadrasterimage return null pointers, and as far as i can tell it's working fine (although the vectors set by oddbrasterimage::getorientation seem to be pre-multiplied by the image size which i hadn't expected).
i'm starting from the example code, but am trying to cut it down to what i need.


所有的时间均为北京时间。 现在的时间是 11:36 PM.