Exercise B3: Defining Primitive Objects

In this exercise you create REM primitive objects from raster data in bitonal images.

You can create line, arc, or circle primitives. You can also use Smart Pick to click a raster entity and let AutoCAD Raster Design toolset determine whether to create a primitive line, arc, or circle.

In this exercise, you create different primitive objects and operate on them using various methods to better understand how AutoCAD Raster Design toolset applies the commands to different REM primitive entities.

Related Exercises

Before doing this exercise, ensure that AutoCAD Raster Design toolset options are set as described in the exercise Exercise A1: Setting AutoCAD Raster Design Toolset Options.

Exercise

1. In the ..\Program Files\Autodesk\ApplicationPlugins\RasterDesign2024.Bundle\Contents\Tutorials\Tutorial3 folder, open the drawing file REM_04.dwg.
2. On the ribbon, click View tab Named Views panel View Manager . Then expand the Model Views node and select the view named TU_index_plate, click Set Current, and click OK.

   Define REM line, arc, and circle primitives

3. On the ribbon, click Raster Tools tab REM panel Create Primitive drop-down menu Line .
4. Select the line that enters the circular part from the left.

   AutoCAD Raster Design toolset defines the line as a REM primitive.

   
5. On the ribbon, click Raster Tools tab REM panel Create Primitive drop-down menu Circle .
6. Select the outer circle defined by a solid line.

   AutoCAD Raster Design toolset defines the circle as a REM primitive. The line you selected in the previous step remains defined.

   
7. On the ribbon, click Raster Tools tab REM panel Create Primitive drop-down menu Arc .
8. Select an arc on the outer edge of the part.

   AutoCAD Raster Design toolset defines the arc as a REM primitive. The line and circle primitives remain defined.

   

   Define primitive objects using Smart Pick

9. On the ribbon, click Raster Tools tab REM panel Create Primitive drop-down menu Smart .

   This option interprets the raster entities you select and creates REM lines, circles, or arcs to represent them.

10. Select any line in the image.

    AutoCAD Raster Design toolset detects that you selected a line, and creates a REM line.

11. Press Enter to repeat the command.

    You can also right-click and select Repeat ISSMART.

12. Select a circle defined by a solid line.

    AutoCAD Raster Design toolset creates a REM circle.

13. Press Enter to repeat the command.
14. Select an arc on the outer edge of the part.

    AutoCAD Raster Design toolset creates a REM arc.

    This exercise demonstrates how you can use REM primitives to selectively create REM objects as a basis for editing the image.

    Clear the REM objects

15. Right-click and click REM Clear All to clear the REM objects from the image.
16. Close the drawing without saving changes.