qgis - How to make survey lines within polygon?

I am trying to figure out how to make survey lines within a polygon.

So first I make a polygon. Now I need to fill this polygon with lines, where I can choose the spacing between the lines, and the angle of the lines. All the lines have the same angle and spacing.

I am trying to do it in QGIS, but I also have ArcGIS for Desktop.

Does anybody have an idea of how to do this?