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Simple Filters do not work in all installations

2

## Summary Trying to run any filter from `Simple Filters` results in an error: ``` --------------------------- Exception before execution of AbsImageFilter --------------------------- --------------------------- OK --------------------------- ``` content in the log:...

Support rendering point clouds

3

## Is your feature request related to a problem? Please describe. Loading a .ply file as a model works, but nothing is rendered. ## Describe the solution you'd like When...

## Is your feature request related to a problem? Please describe. Slicer does not properly open 2D transforms, which are meant to transform 2D images. ## Describe the solution you'd...

`longflag` is required, `name` is optional in SEM XML

2

This should spare someone else from the same issue I encountered [here](https://github.com/Slicer/SlicerExecutionModel/issues/140) by changing the input and output image from positional to flag argument.