ICLR 2020 Update

[holl-]

New features:

• TensorFlow: Seamless TensorFlow data pipeline integration, standard U-net architecture in phi.tf.standard_networks, CUDA resampling operator
• Improved support for point clouds and sampled fields (SampledField), RK4 advection
• Symbolic field math, Noise field to replace math.randfreq()
• Support for STICKY / NO_SLIP domain boundaries and moving/rotating obstacles
• Web interface: Quad view, improved color maps and more configuration settings, configurable axis order using physics_config.x_first()

Breaking changes:

• Change in math.resample() for 'constant' boundaries. This affects only values sampled close to the boundary.
• (minor) Removed keyword arguments from Field.at() and Field.sample_at().
• (minor) Scene.copy_calling_script() now has different keyword arguments.
• (minor) GeometryMask only holds one Geometry and behaves in line with AnalyticField.
• (minor) math.resample(): No longer accepts boundary 'zero' as an alias for 'constant'.

Deprecations:

• load_state(): Use build_graph_input() instead.
• buoyancy(): Use density * -gravity * factor in conjunction with Field.at() instead.
• StaggeredGrid.from_scalar(): Use Field.at() instead.
• world.add_all(): Use world.add() instead.
• Dataset.add(), Dataset.remove(): Mutable datasets are not supported.
• Geometry.value_at(): Use Geometry.lies_inside() instead.
• union_mask(): Use mask(union()) instead.

Version 1.4