Autotek autocad raster design 2010 用户手册
Pick Aperture (Pixels)
Specifies the size of the aperture for pick gravity. Enter a numerical pixel
width to define a new aperture size.
width to define a new aperture size.
Multi-Pick Options
Float Tolerance (Pixels)
Specifies the maximum pixel distance between raster and vector for the
raster to be selected. The distance between the vector being followed and
the underlying raster is constantly tested to ensure the raster falls within
the float tolerance. For example, if your REM primitive arc selection is
further from the raster at one endpoint than the float tolerance allows, only
that portion of the raster within the float tolerance is selected.
raster to be selected. The distance between the vector being followed and
the underlying raster is constantly tested to ensure the raster falls within
the float tolerance. For example, if your REM primitive arc selection is
further from the raster at one endpoint than the float tolerance allows, only
that portion of the raster within the float tolerance is selected.
Non-Continuous Linetype Detection
Max Dash Length (Pixels)
Specifies the maximum length of dash segments for Raster Design to consider
an entity as a non-continuous line.
Click Pick < to select the dash length directly from an image.
an entity as a non-continuous line.
Click Pick < to select the dash length directly from an image.
Max Blank Length (Pixels)
Specifies the maximum distance between dashes for Raster Design to
consider an entity as a non-continuous line.
Click Pick < to select the blank length directly from an image.
consider an entity as a non-continuous line.
Click Pick < to select the blank length directly from an image.
User Preferences Tab (Raster Design Options Dialog
Box)
Box)
Use this tab to configure global settings for the drawing, such as the display
quality of images, how frames are displayed, drawing units, and so on.
quality of images, how frames are displayed, drawing units, and so on.
Image Detach Options
Ask Before Detach
Prompts you to detach an image if it is not referenced by any frames in the
drawing.
drawing.
Always Detach
Automatically detaches an image if its frame is erased.
Never Detach
Retains an attached image, even if the frame is erased.
358 | Appendix B Raster Design Dialog Boxes