The River1D element, for use in xsections, does not have a tsandh='fixed' option. That should probably be added. tsandh=[(0, 0)] also works, but is slower (that won't matter much for xsection models, as they are already fast, but users may be looking for the option if they are used to the 2D River and RiverString elements).
The River1D element, for use in xsections, does not have a
tsandh='fixed'option. That should probably be added.tsandh=[(0, 0)]also works, but is slower (that won't matter much for xsection models, as they are already fast, but users may be looking for the option if they are used to the 2DRiverandRiverStringelements).