To Change the Default Settings for Raster Entity Detection

1. Click Raster menu Options. The Raster Design Options dialog box is displayed.
2. Click the Raster Entity Detection tab.
3. In the Single Pick Options section, enter a value in the Max Jump Length (Pixels) text box, or click Pick to select the jump length from an image.
4. Select Stop At Intersections to determine whether AutoCAD Raster Design toolset detects segments or entire primitives.
5. Select Use Raster Pick Gravity check box to define the size of the area around the point you pick in which AutoCAD Raster Design toolset can search for raster.
6. If you selected Use Raster Pick Gravity, enter a numerical pixel width value in the Pick Aperture (Pixels) text box to define a new aperture size.
7. Under Multi Pick Options, enter a value in the Float Tolerance (Pixels) box.
8. Under Non-Continuous Linetype Detection, enter a value in the Max Dash Length (Pixels) and the Max Blank Length (Pixels) box, or click Pick to select the length from an image.
9. Click OK to exit the dialog box.