The objects with the outlined contours is another kind of Line icons. Such design elements are known as contour drawings. Also you can find another type of icons: the items are without some strict outlines. They are called gesture drawings. These kinds of drawings are being widely used by experienced designers who are able to repeat the outlines of the object right after seeing it.
One additional technique is adding some halftones and shades to the object. It can be done with the help of short lines and crosshatching. Do not afraid to alter their frequency and pencil pressure. And this variety creates more three-dimensional look to the object. So this method is really helping in creation of fantastic Line web icons, logos and buttons.Also lets get info regarding open lines. It's such sort of the lines where the dots not combining the singular elements. The lines can be also parallel, gesture-like, contour and so on. You may be wonder what's bezier curves in computer graphics? It is such type of the curves which are essential for creating complex line shapes. These curves are handy small features important for producing the vector shapes like line icons, unusual buttons etc.Nowadays computer technologies reached such a level when it becomes possible to reproduce exactly the same designs or just build new shapes that based on some older ones. The fantastic thing - it can be done without extra efforts and time. Another benefit is that it is easy to return to the previous adjustments with a help of the history panel. As a result there's no need to make Line web icons from scratch if you have made some faults.