AutoCAD Raster Design toolset provides separate vectorization tools to convert raster lines, polylines, rectangles, circles, and arcs.
Depending on which raster line type you select, AutoCAD Raster Design toolset creates an AutoCAD line or polyline entity with the same position and dimensions as the raster original. Once AutoCAD Raster Design toolset has vectorized a line segment, you can verify its geometry (including angle and length), switch the start point and endpoint, and trim or extend the line.
Settings on the VTools General tab of the Raster Design Options dialog box specify whether the Line tool removes the underlying raster when you exit the command, forces the vector lines to conform to current drafting settings, or assigns layers to the vectors based on the width of the underlying raster lines.
If Dynamic Input is active, prompts appear near the cursor during vectorization; otherwise, the prompts appear only on the command line.
When you use the Line or Polyline tool, you can select the raster line for vectorizing using one of the following two selection methods.
This default method vectorizes a bitonal raster line with a single click. The one-pick method is especially useful when you want to quickly vectorize many separate lines, which can include polylines, circles, and arcs. The endpoint nearest the point you select is considered the start point (an arrow glyph points away from the start-point). Depending on which AutoCAD drafting settings are active, SmartCorrect automatically corrects the resulting line to conform to current drafting settings. For more information, see Using SmartCorrect.
This method vectorizes a raster line that you define by clicking two or more points. The multi-pick method provides you with more control over the vectorizing process. It is useful for creating vector polylines, rectangles, circles, and arcs.
After you select a raster line to vectorize, the AutoCAD command line displays several editing options that vary according to the line type. In general, you can select another entity to vectorize using the one-pick method, or you can edit the vector line by entering numeric attributes or picking additional points.