MantisBT - ParaView

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Date Submitted

Last Update

0006693

ParaView

(No Category)

public

2008-04-01 10:21

2009-05-13 13:59

Reporter

Ken Moreland

Assigned To

Berk Geveci

Priority

normal

Severity

feature

Reproducibility

have not tried

Status

closed

Resolution

fixed

Platform

OS Version

Product Version

Target Version

3.4

Fixed in Version

3.4

Project

Topic Name

Type

Summary

0006693: Add result array name feature to gradient and gradient magnitude filters

Description

The gradient and gradient magnitude filters replace the input array with an array of the same name with the gradient vector or magnitude. This is problematic for two reasons. First, it is misleading; the name no longer reflects the nature of the data. Second, it makes working with the data. If I want to do any operation on both the scalar and its gradient I have to jump through a bunch of hoops to get both arrays because they are attached to different data objects with the same name.

The unstructured gradient filter has a much better way around this. It has a result array name parameter that will be used to name the output. This way, a user may add an appropriate name for the data.

Steps To Reproduce

Additional Information

The change should be made in a backward compatible way. The VTK filter should replicate the previous behavior if a result array name is not given. I guess the ParaView defaults should also have this backward compatible behavior so that saved states and scripts still work.