I am looking for more info about algorithms which connect vertices: How the vertices are connected for each primitives available.

There are ten (10) different drawing primitives recognized by OpenGL and, as a result, by objects such as jit.gl.render and jit.gl.sketch. 

They are points, lines, line_strip, line_loop, triangles, triangle_strip (abbreviated tri_strip), triangle_fan (abbreviated tri_fan), quads, quad_strip, and polygon. 

These primitives each specify the algorithm by which a series of vertices will be connected. 

Table 2-2 and Figure 2-7 of the OpenGL “Redbook” give descriptions and examples of each and describe their common uses. 

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Unfortunately I can't find the table 2-2 and 2-7 from RedBook.

Could anyone point me to the source or something.

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There are ten (10) different drawing primitives recognized by OpenGL and, as a result, by objects such as jit.gl.render and jit.gl.sketch. 
They are points, lines, line_strip, line_loop, triangles, triangle_strip (abbreviated tri_strip), triangle_fan (abbreviated tri_fan), quads, quad_strip, and polygon. 
These primitives each specify the algorithm by which a series of vertices will be connected. 
Tutorial 37: Geometry Under the Hood 
and 
Table 2-2 and Figure 2-7 of the OpenGL “Redbook” give descriptions and examples of each and describe their common uses. 
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primitives-explained

http://www.cs.uregina.ca/Links/class-info/405/WWW/Lab2/

primitives explained