I am working with mathematical-ecological modeling and I am also a new user of QGIS Software. First I am creating 3 circular buffers with same center (shape center) covering a region with roads (shape roads), so I have initialy two shapes and after I create 3 circular buffers. All mathematical work I use R software to produce the number of intermediary rings and distances with each these intermediary rings that will be between the pair of main circular buffers.
My firsts questions are: How could I create automated the process of rings or buffers between the main circulars buffers? Are there scripts or other solution for this?
My second and last: I have roads crossing the buffers and in case of creation of rings (or intermediary buffers) how could I calculate the length of the roads between the two intermediary rings?
The problem is the rings made with a non automate process and also made in atribute table. So I wish make together the automate process with the calculation of the roads that cross the pair of rings. Using R like you said it is possible, but I would like to know the both process because it will be better to know how will be more easy for me. it is my first work with QGIS.