Topics in this section

• RAY

  Creates a line that starts at a point and continues to infinity.

• RECOVER

  Repairs and then opens a damaged drawing file.

• RECOVERALL

  Repairs a damaged drawing file along with all attached xrefs.

• RECTANG

  Creates a rectangular polyline.

• REDEFINE

  Restores AutoCAD internal commands overridden by UNDEFINE.

• REDO

  Reverses the effects of previous UNDO or U command.

• REDRAW

  Refreshes the display in the current viewport.

• REDRAWALL

  Refreshes the display in all viewports.

• REFCLOSE

  Saves back or discards changes made during in-place editing of a reference, either an xref or a block definition.

• REFEDIT

  Edits an xref or a block definition directly within the current drawing.

• REFSET

  Adds or removes objects from a working set during in-place editing of a reference, either an xref or a block definition.

• REGEN

  Regenerates the entire drawing from the current viewport.

• REGENALL

  Regenerates the drawing and refreshes all viewports.

• REGENAUTO

  Controls automatic regeneration of a drawing.

• REGION

  Converts an object that encloses an area into a region object.

• REINIT

  Reinitializes the digitizer, digitizer input/output port, and program parameters file.

• RENAME

  Changes the names assigned to items such as layers and dimension styles.

• RENDER

  Creates a photorealistic or realistically shaded image of a 3D solid or surface model.

• RENDERCROP

  Renders a specified rectangular area, called a crop window, within a viewport.

• RENDERENVIRONMENT

  Controls visual cues for the apparent distance of objects.

• RENDEREXPOSURE

  Provides settings to adjust the global lighting for the most recently rendered output.

• RENDERPRESETS

  Specifies render presets, reusable rendering parameters, for rendering an image.

• RENDERWIN

  Displays the Render window without starting a rendering operation.

• RESETBLOCK

  Resets one or more dynamic block references to the default values of the block definition.

• RESUME

  Continues an interrupted script.

• REVCLOUD

  Creates a revision cloud using a polyline.

• REVERSE

  Reverses the vertices of selected lines, polylines, splines, and helixes, which is useful for linetypes with included text, or wide polylines with differing beginning and ending widths.

• REVOLVE

  Creates a 3D solid or surface by sweeping an object around an axis.

• REVSURF

  Creates a mesh by revolving a profile about an axis.

• RIBBON

  Opens the ribbon window.

• RIBBONCLOSE

  Closes the ribbon window.

• ROTATE

  Rotates objects around a base point.

• ROTATE3D

  Moves objects about a 3D axis.

• RPREF

  Displays or hides the Advanced Render Settings palette for access to advanced rendering settings.

• RPREFCLOSE

  Closes the Render Settings palette.

• RSCRIPT

  Repeats a script file.

• RULESURF

  Creates a mesh that represents the surface between two lines or curves.