User manual AUTOTEK 222

[. . . ] The following are registered trademarks or trademarks of Autodesk Canada Co. in the USA and/or Canada and other countries: Backburner, Multi-Master Editing, River, and Sparks. The following are registered trademarks or trademarks of MoldflowCorp. in the USA and/or other countries: Moldflow, MPA, MPA (design/logo), Moldflow Plastics Advisers, MPI, MPI (design/logo), Moldflow Plastics Insight, MPX, MPX (design/logo), Moldflow Plastics Xpert. [. . . ] 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. NOTE To make the most efficient use of vectorization tools, you should adjust the settings on the VTools General (page 362) tab on the Raster Design Options dialog box. Vectorizing Raster Lines and Polylines The Polyline tool converts raster lines to vector lines or polylines. ProdNameShort creates an AutoCAD entity with the same position and dimensions as a raster line you select. Once ProdNameShort has vectorized a line, you can verify its geometry (including angle and length), switch the start point and endpoint, and trim or extend the line. Depending on the settings you specified on the VTools General (page 362) tab of the Raster Design Options dialog box, the Polyline tool can remove the underlying raster when you exit the command, force the vector polylines to conform to current drafting settings, or assign layers to the vectors based on the width of the underlying raster lines. When you use the Polyline tool, you can select the raster line for vectorizing using one of two selection methods: The default, or one-pick method, vectorizes a bitonal raster line with a single click. 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 polyline to conform to current drafting settings. Enter sw (Switch) to make the current endpoint the start point, and the current start point the endpoint. Enter t (Trim) to trim (shorten) the vector line segment you just created by clicking an intersecting vector entity. Enter x (Extend) to lengthen the vector line segment you just created by clicking an intersecting vector entity. See Options for Trimming or Extending a Line (page 211). 5 Repeat step 3, or press Enter to exit the command. Options for Verifying an Angle When you select the Angle option of the Line tool, the following prompt is displayed: Enter new angle or [Match]<"XdX'X"> NOTE ProdNameShort adjusts the angle about the start point. Do one of the following: To change the angle, enter a new angle. To match the angle of an existing vector, enter m, then select the vector line. To use an angle from the Most Recently Used or Most Frequently Used list (depending on your settings in the Raster Design Options dialog box), right-click, then click a value on the shortcut menu. Options for Verifying a Length When you select the Length option of the Line tool, the following prompt is displayed: Enter new length or [Match]<XXX>: Do one of the following: To change the length, enter a new length. 210 | Chapter 8 Converting Raster Entities to Vector To match the length of an existing vector line, enter m, then select the vector line. To use a length from the Most Recently Used or Most Frequently Used list (depending on your settings in the Raster Design Options dialog box), right-click, then click a value on the shortcut menu. Options for Trimming or Extending a Line When you select the Trim option, the following prompt is displayed: Select cutting edge or [Apparent]: When you select the Extend option, the following prompt is displayed: Select boundary edge or [Apparent]: NOTE ProdNameShort trims or extends the line by moving the endpoint. To either trim or extend the line, do one of the following: To connect the current vector line to an intersecting vector entity, select the intersecting entity. To end the current vector line at an apparent intersection with another vector entity, enter a (Apparent) and select YES, then select the other vector entity. Quick Reference Menu Image Vectorization Tools Line Click Image Vectorization Tools Polyline. Raster Design Toolbar Vectorize Line Vectorize Polyline Command Line vline vpline Vectorizing Raster Lines and Polylines | 211 Dialog Box VTools General Tab (ProductNameShort Options Dialog Box) (page 362) Vectorizing Raster Rectangles You can convert a raster rectangle to a vector rectangle by using the Rectangle tool. [. . . ] supported image types ProdNameShort supports bitonal, grayscale, and up to 24-bit color images, and generic integer data in 16- and 32-bit format. Threshold A ProdNameShort operation for converting color or grayscale images to bitonal format. Within the range of grayscale values in an image, the threshold marks the upper limit of black pixel values and the lower limit of white pixel values. ProdNameShort can set the threshold value automatically, but you can manually adjust it before conversion, using the Threshold tab of the Histogram dialog box. [. . . ]