I am using Voronoi polygon coordinates and respective node coordinates together. To apply the load to that particular node which is obtained by summing up the loads that lies within the polygon. By exporting geometry property I am getting nodal and polygon coordinates in separate files. Can I able to get those files together? Or else the polygon coordinates for one shape id within one row?
You need to make sure that the polygons have an id attribute. Then vector -> Geometry Tools --> Extract Nodes. This will give you a point file with the attributes of the source polygons for each node. Then save the layer as a CSV. This will give a table with the attributes (including your id) and x, y values.