Auto Trace settings You can choose options and preset configurations in the Auto Trace dialog box. A   To use a preset configura- tion, select its name in the pop-up menu. Preset configu- rations and those you save ap- pear in the menu. Channel. Choose a channel of the image to trace. Curves or Polygons. Click an option to set the trace meth- od. Curves creates paths with smooth anchor points as needed. Polygon creates paths without curved seg- ments. Polygon can be better for tracing straight lines, but can make jagged shapes. Curves makes segments with fewer anchor points. Fixed End. Aligns the trace with the end points of the image. Available when you select the Curves option. Corners. Creates corner points that let you modify one curve segment without affect- ing the other. Use the Round- Sharp slider to control the cor- ner sensitivity. Available when you select the Curves option. Smooth. Traces without corner points when the Corners option is off. If Smooth and Corners are on, angles within the speci- fied sharpness are traced as corner points. Available when you select the Curves option. Centerline. Traces one line through the middle of large solid areas instead of tracing along edges. Available when you select the Curves and Polygons options. Filter. Prevents the tracing of small, random elements, such as tiny lines and dots. Avail- able when you select the Curves and Polygons options. Invert Map. Inverts lightness values (as in a negative image) of the channel for tracing. Available when you select the Curves and Polygons options Loose-Tight. Drag the slider toward Tight for more exact tracing with more anchor points. Drag the slider toward Loose for a looser tracing with fewer anchor points. Round-Sharp. Drag the slider toward Round to get rounder corners. Drag the slider toward Sharp to get sharper corners. B   Choose Save Settings to save the current settings as a configuration you can select later. Choose Delete Settings to delete the current configura- tion. You can delete configura- tions that you save. Apply. Click to preview the trace. OK. Click to trace the image. A B
Canvas 8 Help: Scanning, sizing, and tracing images (16 of 18)                                      Page #648