The group of elements in the section Hide of the Viewer tab enables you to hide and show lineweight, measurements and text and show objects like sequences of short lines or using bent lines.
The Arcs Splitted button (Viewer tab -> CAD Image -> Arcs Splitted) causes drawing of all arcs and circles in the loaded CAD file as a sequence of short lines. Deactivating this button (releasing) causes drawing of the most of arcs and circles in the image by means of Windows GDI functions like Ellipse, Arc, etc., not linearized, that implies some inaccuracy in the drawings display. Dotted arcs and circles are always linearized.
The Show Measurements button (Viewer tab -> Hide -> Show Dimensions) shows or hides dimension lines on the loaded CAD file.
The Show Texts button (Viewer tab -> Hide -> Show Texts) shows or hides texts on the loaded CAD file.
The Show Lineweight button (Viewer tab -> Hide -> Show Lineweight) causes drawing of the all image lines with their real weight. Deactivating this button (releasing) causes drawing of the all image lines with one pixel weight. The scale of the lineweight display is set in the tab Visualization of the dialog box Options.
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