how to create a custom mesh?

Hi, i have a matrix containing the nodes of my domain. i also created a matrix containing the boundry elements, each row of this matrix has [first node, second node, left side domain (usually 1), right side domain (usually 0)]. what is my next step in order to creat the mesh? thank you for your help.

[Walter Roberson]

http://www.mathworks.com/matlabcentral/answers/7924-where-can-i-upload-images-and-files-for-use-on-matlab-answers

Please show a brief example of inputs and the result you want.