Autotek autocad raster design 2010 用户手册
Preferences
Show Aperture
(page 381) while using raster snap.
Aperture Size
Specifies a size for the aperture in pixels. The maximum size is 300 pixels.
Where raster entities are close together, a large aperture can make it difficult
to select specific entities when several entities are inside the aperture.
Where raster entities are close together, a large aperture can make it difficult
to select specific entities when several entities are inside the aperture.
NOTE Aperture is defined in image pixels, not screen pixels, so the size of the
aperture changes with the zoom level. Therefore, if you are at the extents of an
image and the aperture is 10 pixels, the window may appear small. However,
if you zoom in, the same aperture appears larger.
aperture changes with the zoom level. Therefore, if you are at the extents of an
image and the aperture is 10 pixels, the window may appear small. However,
if you zoom in, the same aperture appears larger.
Raster Snap Overrides
When Raster Snap is active, it takes priority over any cursor control mode
selected here.
selected here.
Snap
Raster Snap overrides the AutoCAD SNAP command.
Polar Tracking
Raster Snap overrides the AutoCAD Polar Tracking feature.
Ortho
Raster Snap overrides the AutoCAD ORTHO command.
Options
Displays the Drafting tab on the AutoCAD Options dialog box. In this dialog
box, you can define your AutoSnap Marker Size and your Aperture Size.
box, you can define your AutoSnap Marker Size and your Aperture Size.
See AutoCAD Help for further information about the AutoCAD Options dialog
box.
box.
Related procedures:
■
(page 237)
Edit Status Dialog Box
Use this dialog box to see any restrictions on how an image can be edited and
saved.
saved.
310 | Appendix B Raster Design Dialog Boxes