Python: Start 1D Support (#2582)

* Python: Start 1D Support

Start supporting 1D builds in Python.

* Fix 1D: PML FillZero unused

... since PMLs are not yet supported in 1D.

* BeamRelevant: Fix unused p_pos0

* FromTXYEFileLaserProfile: Not Impl in 1D

* QED Schwinger: 1D not Implemented

Fix unused warnings, add aborts.

* 1D RealVect/IntVect: Initialization

Use explicit scalar constructors, no braces.
Fix warning in clang 10.

* 1D NCI Filter: Fix unused members & Init

Unimplemented, but throws warnings.

* PSATD: 1D not Implemented

- remove compile warnings
- start porting some parts

* NCIGodfreyFilter: Clean up 2D & Else

1 files changed, 3 insertions, 1 deletions

diff --git a/Source/Particles/MultiParticleContainer.cpp b/Source/Particles/MultiParticleContainer.cpp
index 70254aadd..fa0ffd2ee 100644
--- a/Source/Particles/MultiParticleContainer.cpp
+++ b/Source/Particles/MultiParticleContainer.cpp
@@ -1314,7 +1314,9 @@ MultiParticleContainer::doQEDSchwinger ()
 // Get cell volume. In 2D the transverse size is
 // chosen by the user in the input file.
     amrex::Geometry const & geom = warpx.Geom(level_0);
-#if (AMREX_SPACEDIM == 2)
+#if (AMREX_SPACEDIM == 1)
+    const auto dV = geom.CellSize(0); // TODO: scale properly
+#elif (AMREX_SPACEDIM == 2)
     const auto dV = geom.CellSize(0) * geom.CellSize(1)
         * m_qed_schwinger_y_size;
 #elif (AMREX_SPACEDIM == 3)