QGIS - creating vector layer which contain boundary of each raster cell

Question

I would like to show a raster layer and beyond it another layer which contain lines (polylines) which is boundary of cells in other raster layer

I think about split each cell into new raster file and than convert it to vector - maybe there is much easier way? http://imageshack.us/photo/my-images/21/qgispyt.png/

Answer 1

I will answer to myself.

By using gdalinfo I can get exactly coordinates of raster corners and number of cells. If I use this information I can generate a GML file - unfortunately I have problem with it: qgis GML

Answer 2

If I understand what you want, there's a more easy way to do this. In Quantum GIS:
Vector > Research Tools > Vector Grid

• Copy the spatial attributes of another layer (that is opened)
• Choose a resolution that is not too small (otherwise your layer is just a black patch)
• Choose lines

Default, the resulting layer will have a fill color, even when you selected lines and not polygons. You can change this in the Properties your layer.

• Click Edit (or button with wrench icon)
• Choose 'No fill' for Fill style

You're done!