ENH: Add vmin and vmax to viewer

[PaulHax]

Closes #723

Depends on:
Kitware/itk-vtk-viewer#730 (review)

[thewtex]

Nice!

@bnmajor if / when we have an inherited ipywidget viewer class, they will be able to override these properties with the traitlets, correct?

@PaulHax could you please also add vmin, vmax arguments to view?

[bnmajor]

@bnmajor if / when we have an inherited ipywidget viewer class, they will be able to override these properties with the traitlets, correct?

Yup! Essentially you would just swap out property for observe and val.setter for default("val"). For example:

class Foo:
    ....
     @property
     def bar(self):
             return self.get_value()

     @bar.setter
     def bar(self, val):
             self.set_value(val)

should become

class Foo(HasTraits):
    bar = Int()

     @observe
     def bar(self):
             return self.get_value()

     @default("bar")
     def bar(self, val):
             self.set_value(val)

[thewtex]

👍 please bump the itk-vtk-viewer version before merge

[thewtex]

tagging