Creating an Associative Hatch in AutoCAD

Hatched areas created with BHATCH are associative by default. You can remove hatch associativity at any time or you can change the default to create a nonassociative hatch. If you specify points to create an associative hatch, specify only one internal point per hatch block placement. Specifying more than one internal point can produce unexpected results when you edit the hatch boundary.


To hatch an enclosed area

  1. From the Draw menu, choose Hatch.
  2. In the Boundary Hatch dialog box, choose Pick Points.
  3. Specify a point in your drawing inside each area you want to hatch. If you make a mistake, you can right-click and choose Clear All or Undo Last Select/Pick from the shortcut menu.
  4. To preview the hatch, right-click and choose Preview.
  5. Press ENTER to return to the Boundary Hatch dialog box.
  6. Choose OK to apply the hatch.

By default, AutoCAD uses the Flood island detection method to define boundaries from the specified points, and the Normal island detection style to apply the hatch. See “Defining Hatch Boundaries” and “Using Island Detection Styles.”

To hatch selected objects

  1. From the Draw menu, choose Hatch.
  2. In the Boundary Hatch dialog box, choose Select Objects.
  3. Select the object or objects you want to hatch. The objects need not form a closed boundary. You can also specify any islands by selecting objects within other selected objects. If you make a mistake, you can right-click and choose Clear All or Undo Last Select/Pick from the shortcut menu.
  4. To preview the hatch, right-click and choose Preview.
  5. Press ENTER to return to the Boundary Hatch dialog box.
  6. Choose OK to apply the hatch.

By default, AutoCAD uses the Normal island detection style to apply the hatch. See “Using Island Detection Styles.”

Command line:
BHATCH
Related : HATCH creates a nonassociative hatch. BOUNDARY creates a polyline or region boundary.
NOTE: Due to the large number of combinations of objects that can be hatched, editing hatched geometry can produce unexpected results. If an error occurs, delete the hatch object and rehatch.

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