Calculator filter grants forbidden calculation and do not prevent errors
This issue was created automatically from an original Mantis Issue. Further discussion may take place here.
When using the calculator filter in ParaView, it has been noticed 2 issues :
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forbidden calculations as /0, sqrt(negative number), ln(0)... return 0 value as a result which is not intuitive;
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if we fill in a wrong formula, for instance cossin(my_field) or my_field**2, there is no warning or error message display. The "Result" field is simply not available which is, once more, not really intuitive.