Thanks! My mistake was in this line: g.SetInputScalars(0, var) I was using 1 instead of 0 as I was getting the enum from vtkDataSet rather than vtkDataObject, which is why it couldn't find my variable (it was looking for cell data rather than point data). Confusion on my part (partly due to lack of coffee), but thank you for providing the example. Regards, Adriano ===================================
Adriano Gagliardi MEng PhD Business Sector Leader Computational Aerodynamics Aircraft Research Association Ltd. Manton Lane Bedford Tel: 01234 32 4644 E-mail: agaglia...@ara.co.uk Url: www.ara.co.uk _____ From: aur.mar...@gmail.com [mailto:aur.mar...@gmail.com] On Behalf Of Aurélien Marsan Sent: 02 July 2010 10:28 To: agaglia...@ara.co.uk Cc: paraview@paraview.org Subject: Re: [Paraview] Compute gradients Here an example to compute the gradient of var, and store the result as new_var. g = vtk.vtkGradientFilter() g.SetInput(Bloc) g.SetInputScalars(0, var) g.SetResultArrayName(new_var) g.Update() Bloc.GetPointData().AddArray(g.GetOutput().GetPointData().GetArray(new_var)) Maybe you forgot the "Update" ? 2010/7/2 Adriano Gagliardi <agaglia...@ara.co.uk> Does anyone have an example of using vtkGradientFilter to compute the gradients of a single vector in your data-set? I've tried using SetInputScalars, but it tells me that there is no input array,. although the array I pass it does exist. =================================== Adriano Gagliardi MEng PhD Business Sector Leader Computational Aerodynamics Aircraft Research Association Ltd. Manton Lane Bedford Tel: 01234 32 4644 E-mail: agaglia...@ara.co.uk Url: www.ara.co.uk ********************************************************************** This email contains information that is private and confidential and is intended only for the addressee. If you are not the intended recipient please delete it and notify us immediately by e-mailing the sender. Note: All email sent to or from this address may be accessed by someone other than the recipient, for system management and security reasons. Aircraft Research Association Ltd. Registered in England, Registration No 503668 Registered Office: Manton Lane, Bedford MK41 7PF England VAT No GB 196351245 ********************************************************************** _______________________________________________ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview -- Aurélien MARSAN Doctorant Cifre Turbomeca/LMFA aurelien.mar...@ecl2009.ec-lyon.fr 06.31.98.26.73 ********************************************************************** This email contains information that is private and confidential and is intended only for the addressee. If you are not the intended recipient please delete it and notify us immediately by e-mailing the sender. Note: All email sent to or from this address may be accessed by someone other than the recipient, for system management and security reasons. Aircraft Research Association Ltd. Registered in England, Registration No 503668 Registered Office: Manton Lane, Bedford MK41 7PF England VAT No GB 196351245 **********************************************************************
_______________________________________________ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview
