Jeremy Sanders <jeremy@...> writes: > This is tricky as Veusz tries to preserve the 2D grid spacing (WCS) > information when possible. I should add a WCS option to the fits import > dialog. > > So you can either > 1. Remove the WCS from the fits file by deleting the various header keywords > > 2. Do something kludgy to create a new 2D dataset based on the imported > fits data. Unfortunately Veusz tries to preserve this information. You > can import your data, then go to Data->Create 2D. Choose from X,Y,Z > values based on 1D datasets. For the expressions use something like > > X: indices(img.shape)[0].ravel() > Y: indices(img.shape)[1].ravel() > Z: img.ravel() > > Where img is your dataset name. You might have to swap the X and Y > expressions here. >
Perhaps a related question, but I am using VEUSZ to read in a FITS file, and the WCS information is not correctly incorporated -- I get pixel values and intensity, and not RA/DEC. How can I go about extracting the X and Y pixel locations (and intensity values) from the 2D file (and placing them into 1D vectors) so that I can (manually) create new RA and DEC arrays to use for plotting purposes? Pat Durrell _______________________________________________ Veusz-discuss mailing list [email protected] https://mail.gna.org/listinfo/veusz-discuss
