RubarBE: show bed evolution in the results window (cross section and longitudinal profile), from the bed level in profil and the sections of geomac-N

src/Model/Results/River/River.py

@@ -104,7 +104,10 @@ class Profile(SQLSubModel):
         return any(map(lambda ts: "sl" in self._data[ts], self._data))
 
     def has_bedload(self):
-        return any(map(lambda ts: "sl" in self._data[ts], self._data))
+        # Sediment layers (Mage) or bed level of the section (RubarBE)
+        return any(map(lambda ts: ("sl" in self._data[ts] or
+                                   "zfd" in self._data[ts]),
+                       self._data))
 
     @classmethod
     def _db_create(cls, execute, ext=""):

src/Solver/RubarBE.py

@@ -17,6 +17,7 @@
 # -*- coding: utf-8 -*-
 
 import os
+import re
 import logging
 import math
 from decimal import Decimal, InvalidOperation, localcontext
@@ -76,11 +77,14 @@ class Rubar3(CommandLineSolver):
             ("rubarbe_fdeb2", "10"),
             ("rubarbe_fdeb3", "100"),
             ("rubarbe_tf_1", "y"),
-            ("rubarbe_tf_2", "y"),
+            # TF(2) and TF(4) need the abscissas and times below
+            ("rubarbe_tf_2", "n"),
             ("rubarbe_tf_3", "y"),
-            ("rubarbe_tf_4", "y"),
+            ("rubarbe_tf_4", "n"),
             ("rubarbe_tf_5", "y"),
             ("rubarbe_tf_6", "n"),
+            ("rubarbe_abshyd", ""),
+            ("rubarbe_tnprof", ""),
             ("rubarbe_trased", "n"),
             ("rubarbe_optfpc", "0"),
             # trased parameters
@@ -160,23 +164,14 @@ class Rubar3(CommandLineSolver):
             return False
 
         trased = self._parameter_flag(study, "trased") == "O"
-        if trased:
-            # Notice §3.6: HYDROS is required at each upstream boundary
-            missing = self._reaches_without_solid_boundary(study)
-            if missing:
-                trad = RunSolverTranslate()
-                message = trad["missing_solid_boundary"].format(
-                    reaches=", ".join(missing)
-                )
-                logger.warning(message)
-                if qlog is not None:
-                    qlog.put(trad["warning"].format(message=message))
-                return False
 
         # Check the hydraulic data before writing any file
         try:
             hydraulics = self._hydraulic_data(study, values)
             geometry = self._geometry_data(hydraulics["edge"], trased)
+            solid = self._solid_boundary(
+                study.river, hydraulics["edge"], values, trased)
+            saves = self._save_data(values, hydraulics)
         except RubarExportError as error:
             self._cancel(qlog, str(error))
             return False
@@ -197,7 +192,12 @@ class Rubar3(CommandLineSolver):
         self._export_condin(hydraulics, repertory, qlog, name=name)
         self._export_stricklers(hydraulics, repertory, qlog, name=name)
         self._export_boundaries(hydraulics, repertory, qlog, name=name)
-        # self._export_abshyd(study, repertory, qlog, name=name)
+        if solid is not None:
+            self._export_hydros(solid, repertory, qlog, name=name)
+        if trased:
+            self._export_condins(geometry, hydraulics["tinit"], repertory,
+                                 qlog, name=name)
+        self._export_saves(saves, repertory, qlog, name=name)
 
         return True
 
@@ -217,7 +217,10 @@ class Rubar3(CommandLineSolver):
                          "5": (), "7": ()}
     _boundary_kinds = {"TD": "hydrograph Q(t)", "TZ": "water level Z(t)",
                        "ZD": "rating curve Q(Z)",
-                       "PC": "punctual contribution"}
+                       "PC": "punctual contribution",
+                       "SL": "solid discharge Qs(t)"}
+    # NCLMAX (variables.f90): points of all the solid hydrographs
+    _max_solid_points = 1000
 
     def _hydraulic_data(self, study, values):
         """Check the single reach data needed by DONNEE, MAIL, CONDIN,
@@ -307,17 +310,11 @@ class Rubar3(CommandLineSolver):
                     name=names[marker], profile=self._profile_label(profile),
                     reach=edge.name))
 
-        # Defaults of RubarBE: first and last points for G and D, G and D
-        # for g and d. Erosion only applies strictly between g and d
-        def index(marker, default):
-            return markers.index(marker) if marker in markers else default
-
-        left = index("G", 0)
-        right = index("D", len(points) - 1)
+        left, right, active_left, active_right = self._bed_limits(markers)
         limits = [("main_channel", "rg", "rd", left, right)]
         if trased:
             limits.append(("active_bed", "g", "d",
-                           index("g", left), index("d", right)))
+                           active_left, active_right))
         for bed, lname, rname, i, j in limits:
             if j - i < 2:
                 raise RubarExportError(trad["bed_limits_invalid"].format(
@@ -325,6 +322,18 @@ class Rubar3(CommandLineSolver):
                     profile=self._profile_label(profile), reach=edge.name))
         return markers
 
+    @staticmethod
+    def _bed_limits(markers):
+        """Indices of the G, D, g and d points of a section. Defaults of
+        RubarBE: first and last points for G and D, G and D for g and d.
+        Erosion only applies strictly between g and d"""
+        def index(marker, default):
+            return markers.index(marker) if marker in markers else default
+
+        left = index("G", 0)
+        right = index("D", len(markers) - 1)
+        return left, right, index("g", left), index("d", right)
+
     def _compartments(self, edge, profile, number, point):
         """Sediment layers of a point as RubarBE compartments, from the
         top: (top elevation, D, S, critical stress). A non erodible
@@ -452,6 +461,140 @@ class Rubar3(CommandLineSolver):
 
         return selected
 
+    def _solid_boundary(self, river, edge, values, trased):
+        """Solid boundary condition written in HYDROS. RubarBE reads it
+        at the upstream node when TRASED is enabled and CONDAM=1 (CONDAM=2
+        is refused), and has no downstream solid condition (rubar_init.f90,
+        inits). Without sediment transport the solid conditions are
+        ignored. Return the condition or None"""
+        if not trased:
+            return None
+        trad = RunSolverTranslate()
+        condam = values.get("rubarbe_condam", "")
+
+        solid = [
+            bc for bc in river.boundary_condition.get_tab("solid")
+            if not bc.is_deleted() and bc.bctype == "SL"
+        ]
+        for bc in solid:
+            if bc.node == edge.node2:
+                raise RubarExportError(
+                    trad["solid_boundary_downstream"].format(
+                        name=bc.name, node=edge.node2.name))
+
+        expected = ("SL",) if condam == "1" else ()
+        selected = self._select_boundaries(
+            [bc for bc in solid if bc.node == edge.node1], expected,
+            edge.node1, {"SL": f"TRASED=O, CONDAM={condam}"},
+            f"CONDAM={condam}"
+        )
+        bc = selected.get("SL")
+        if bc is None:
+            return None
+
+        if len(bc) > self._max_solid_points:
+            raise RubarExportError(trad["solid_boundary_too_long"].format(
+                name=bc.name, node=edge.node1.name, count=len(bc),
+                maximum=self._max_solid_points))
+        # RubarBE stops on a zero D or S
+        if not (bc.d50 > 0 and bc.sigma >= 1):
+            raise RubarExportError(trad["solid_boundary_invalid"].format(
+                name=bc.name, node=edge.node1.name))
+        return bc
+
+    #########
+    # Saves #
+    #########
+
+    # NBHYPR (variables.f90): abscissas of ABSHYD and times of TNPROF.
+    # RubarBE does not check this size
+    _max_saves = 100
+
+    @staticmethod
+    def save_list(text, times=False):
+        """Numbers of a list parameter (ABSHYD abscissas, TNPROF times),
+        separated by spaces or semicolons. Times are in seconds or in
+        days:hours:minutes:seconds. Raise ValueError with the invalid
+        token"""
+        values = []
+        for token in re.split(r"[\s;]+", text.strip()):
+            if token == "":
+                continue
+            try:
+                if times and ":" in token:
+                    parts = token.split(":")
+                    if len(parts) != 4 or not all(
+                            p.isascii() and p.isdigit() for p in parts):
+                        raise ValueError(token)
+                    value = float(sum(
+                        int(p) * factor for p, factor in
+                        zip(parts, (86400, 3600, 60, 1))))
+                else:
+                    value = float(token)
+            except ValueError:
+                raise ValueError(token) from None
+            if not math.isfinite(value):
+                raise ValueError(token)
+            values.append(value)
+        return values
+
+    def _save_data(self, values, hydraulics):
+        """Abscissas of ABSHYD, read when TF(2)=O, and times of TNPROF,
+        always read: they give the saves of PROFIL and PROFILS when
+        TF(4)=O and of the complementary outputs when IOVIS=O
+        (rubar_init.f90, init2; rubarbe.f90, SAVEVISU). Return
+        {'abshyd': [rk] or None, 'tnprof': [t]}"""
+        trad = RunSolverTranslate()
+        lists = {}
+        for key, times in (("abshyd", False), ("tnprof", True)):
+            key = f"rubarbe_{key}"
+            try:
+                lists[key] = self.save_list(values.get(key, ""), times)
+            except ValueError as error:
+                raise RubarExportError(trad["save_list_invalid"].format(
+                    key=key, value=str(error)))
+            if len(lists[key]) > self._max_saves:
+                raise RubarExportError(trad["save_list_too_long"].format(
+                    key=key, count=len(lists[key]),
+                    maximum=self._max_saves))
+
+        def enabled(flag):
+            return values.get(f"rubarbe_{flag}", "n").lower() in ("y", "o")
+
+        for flag, key in (("tf_2", "rubarbe_abshyd"),
+                          ("tf_4", "rubarbe_tnprof")):
+            if enabled(flag) and not lists[key]:
+                raise RubarExportError(trad["save_list_required"].format(
+                    flag=f"rubarbe_{flag}", key=key))
+
+        # RubarBE looks for each abscissa between two centres of cells,
+        # from the first to the last section
+        abshyd = None
+        if enabled("tf_2"):
+            edge = hydraulics["edge"]
+            first = self._section_rk(hydraulics["profiles"][0])
+            last = self._section_rk(hydraulics["profiles"][-1])
+            for rk in lists["rubarbe_abshyd"]:
+                if not first <= round(rk, 3) <= last:
+                    raise RubarExportError(trad["abshyd_outside"].format(
+                        rk=f"{rk:g}", first=f"{first:g}", last=f"{last:g}",
+                        reach=edge.name))
+            abshyd = lists["rubarbe_abshyd"]
+
+        # Times outside the computation do not falsify it: RubarBE saves
+        # the earlier ones at the first time steps and never reaches the
+        # later ones
+        tinit = hydraulics["tinit"]
+        tmax = self._seconds(values.get("rubarbe_tmax", "0"))
+        tnprof = sorted(lists["rubarbe_tnprof"])
+        outside = [t for t in tnprof if not tinit <= t <= tmax]
+        if outside:
+            hydraulics["warnings"].append(trad["tnprof_outside"].format(
+                times=" ".join(f"{t:g}" for t in outside),
+                tinit=f"{tinit:g}", tmax=f"{tmax:g}"))
+
+        return {"abshyd": abshyd, "tnprof": tnprof}
+
     @staticmethod
     def _interpolated_frictions(edge):
         """Minor and medium Strickler at each centre of cell. The model
@@ -578,20 +721,6 @@ class Rubar3(CommandLineSolver):
             return False
         return True
 
-    @staticmethod
-    def _reaches_without_solid_boundary(study):
-        river = study.river
-        solid = [
-            bc for bc in river.boundary_condition.get_tab("solid")
-            if not bc.is_deleted() and bc.bctype == "SL" and len(bc) > 0
-        ]
-
-        return [
-            edge.name for edge in river.enable_edges()
-            if river.is_upstream_node(edge.node1)
-            and not any(bc.node == edge.node1 for bc in solid)
-        ]
-
     def _parameter_values(self, study):
         return {p.name: str(p.value).strip()
                 for p in study.river.get_params(self.type).parameters}
@@ -825,27 +954,28 @@ class Rubar3(CommandLineSolver):
 
         self._write_parameters(repertory, f"mail.{name}", lines)
 
-    def _export_abshyd(self, study, repertory, qlog, name="0"):
+    def _export_saves(self, saves, repertory, qlog, name="0"):
+        """ABSHYD (number, then I4, 1X, F11.3 per abscissa; single reach,
+        its number is omitted) when TF(2)=O, and TNPROF (number, then
+        index and time per line). TNPROF is always read by RubarBE: an
+        empty list is written as 0, so that a previous TNPROF of the
+        directory is not used"""
+        if saves["abshyd"] is not None:
             if qlog is not None:
                 qlog.put("Export ABSHYD file")
+            lines = [f"{len(saves['abshyd']):>4}\n"] + [
+                f"{i:>4} {rk:>11.3f}\n"
+                for i, rk in enumerate(saves["abshyd"], 1)
+            ]
+            self._write_parameters(repertory, f"abshyd.{name}", lines)
 
-        with open(
-                os.path.join(
-                    repertory, f"abshyd.{name}"
-                ), "w+"
-        ) as f:
-            reach_ind = 1
-            for edge in study.river.enable_edges():
-                reach = edge.reach
-                lm = len(reach) + 1
-                f.write(f"{lm:>13}\n")
-
-                ind = 1
-                for mail in reach.inter_profiles_rk():
-                    f.write(f"{ind:>4} {mail:15.3f} {reach_ind:>4}\n")
-                    ind += 1
-
-                reach_ind += 1
+        if qlog is not None:
+            qlog.put("Export TNPROF file")
+        lines = [f"{len(saves['tnprof']):>12}\n"] + [
+            f"{i:>12} {t:>24.3f}\n"
+            for i, t in enumerate(saves["tnprof"], 1)
+        ]
+        self._write_parameters(repertory, f"tnprof.{name}", lines)
 
     def _export_devers(self, study, repertory, qlog, name="0"):
         if qlog is not None:
@@ -930,6 +1060,40 @@ class Rubar3(CommandLineSolver):
             lines = [header(len(bc))] + records(bc, columns)
             self._write_parameters(repertory, f"{filename}.{name}", lines)
 
+    def _export_hydros(self, bc, repertory, qlog, name="0"):
+        """HYDROS: number of points, then Qs, t, D, S (notice annex 1).
+        Qs is a solid discharge (kg/s) or a concentration (kg/m3)
+        according to UNISOL, D and S are those of the condition"""
+        if qlog is not None:
+            qlog.put("Export HYDROS file")
+        d50, sigma = float(bc.d50), float(bc.sigma)
+        lines = [f"{len(bc)}\n"] + [
+            f"{float(qs)!r} {float(t)!r} {d50!r} {sigma!r}\n"
+            for t, qs in bc.data
+        ]
+        self._write_parameters(repertory, f"hydros.{name}", lines)
+
+    def _export_condins(self, geometry, tinit, repertory, qlog, name="0"):
+        """CONDINS: TINIT, then for each section (intermaille) its number,
+        Qs, D and S of the active layer (notice annex 1, rubar_init.f90,
+        inits). Pamhyr2 holds no initial solid condition: Qs = 0 (empty
+        active layer) and D, S are the mean of the top compartments of the
+        points strictly between g and d, as advised by the notice §3.5"""
+        if qlog is not None:
+            qlog.put("Export CONDINS file")
+        lines = [f"{tinit!r}\n"]
+        for i, (_, rows) in enumerate(geometry, 1):
+            markers = [marker for marker, _, _ in rows]
+            _, _, left, right = self._bed_limits(markers)
+            tops = [compartments[0] for _, _, compartments
+                    in rows[left + 1:right]]
+            # Rounded to 10 significant digits, so that a mean of equal
+            # values is written as these values
+            d = float(f"{sum(c[1] for c in tops) / len(tops):.10g}")
+            s = float(f"{sum(c[2] for c in tops) / len(tops):.10g}")
+            lines.append(f"{i} 0.0 {d!r} {s!r}\n")
+        self._write_parameters(repertory, f"condins.{name}", lines)
+
     def read_profil(self, study, fname, results, qlog=None, name="0"):
         logger.info(f"read: profil.{name}")
         with open(fname, "r") as f:
@@ -949,10 +1113,16 @@ class Rubar3(CommandLineSolver):
                 else:
                     return (0.0, 0.0, 0.0, 0.0)
 
-            def set_and_compute_limites(reach, ind, z, q, s):
+            # Bed level of each section (mean of the CTDF of the
+            # neighbouring cells): {(reach, ind): {timestamp: level}}
+            bed = {}
+
+            def set_and_compute_limites(reach, ind, z, q, s, zf=None):
                 reach.set(ind, timestamp, "Z", z)
                 reach.set(ind, timestamp, "Q", q)
                 reach.set(ind, timestamp, "V", s)
+                if zf is not None:
+                    bed.setdefault((reach, ind), {})[timestamp] = zf
 
                 profile = reach.profile(ind)
                 limits = profile.geometry.get_water_limits(z)
@@ -990,7 +1160,9 @@ class Rubar3(CommandLineSolver):
                 if line == "":
                     break
 
-                timestamp = float(line)
+                # Saves at the times of TNPROF are marked 'tnprof'
+                # (rubarbe.f90, SAVEVISU)
+                timestamp = float(line.split()[0])
                 ts.add(timestamp)
 
                 logger.info(f"read: profil.{name}: timestamp = {timestamp}")
@@ -998,7 +1170,7 @@ class Rubar3(CommandLineSolver):
                 for reach, lm in reachs:
                     # First profile
                     h, s, q, z = read_data_line(f)
-                    set_and_compute_limites(reach, 0, z+h, q, s)
+                    set_and_compute_limites(reach, 0, z+h, q, s, z)
 
                     # For each profile
                     ind = 1
@@ -1009,7 +1181,8 @@ class Rubar3(CommandLineSolver):
                             reach, ind,
                             (pz + z + ph + h) / 2,
                             (pq + q) / 2,
-                            (ps + s) / 2
+                            (ps + s) / 2,
+                            (pz + z) / 2
                         )
 
                         ph = h
@@ -1020,7 +1193,7 @@ class Rubar3(CommandLineSolver):
 
                     # Last profile
                     h, s, q, z = read_data_line(f)
-                    set_and_compute_limites(reach, ind, z+h, q, s)
+                    set_and_compute_limites(reach, ind, z+h, q, s, z)
 
             # Tables and plots use timestamp rows and global profile columns.
             timestamps = sorted(ts)
@@ -1030,6 +1203,21 @@ class Rubar3(CommandLineSolver):
                 profiles.extend(reach.profiles)
                 reach.set_global_index(range(offset, len(profiles)))
 
+            # Kept only when the bed moves (sediment transport), so that
+            # the plots otherwise show the study geometry. The initial
+            # condition of the study has no bed level: the first one read
+            # in PROFIL is used
+            keys = ["Z", "Q", "V"]
+            moves = any(max(levels.values()) != min(levels.values())
+                        for levels in bed.values())
+            if moves and len(bed) == len(profiles):
+                for (reach, ind), levels in bed.items():
+                    first = levels[min(levels)]
+                    for t in timestamps:
+                        first = levels.get(t, first)
+                        reach.set(ind, t, "zfd", first)
+                keys.append("zfd")
+
             results.set("timestamps", timestamps)
             results.compute_timestamp_index()
             results.set("table", {
@@ -1037,7 +1225,7 @@ class Rubar3(CommandLineSolver):
                     [profile.get_ts_key(t, key) for profile in profiles]
                     for t in timestamps
                 ], dtype=float)
-                for key in ("Z", "Q", "V")
+                for key in keys
             })
 
     @timer
@@ -1155,8 +1343,74 @@ class Rubar3(CommandLineSolver):
             logger_exception(e)
             return None
 
+        # Without them, the hydraulic results stay readable
+        try:
+            self.read_bed_sections(results, repertory, name)
+        except Exception as e:
+            logger.warning(f"Failed to read the bed sections")
+            logger_exception(e)
+
         return results
 
+    def read_bed_sections(self, results, repertory, name):
+        """Bed sections for the cross section plot of the results window:
+        - 'bed_points' {global index: [bool, ...]}: the points whose level
+          changes, strictly between g and d (step 4);
+        - 'bed_sections' {timestamp: {global index: [z, ...]}}: exact
+          sections saved at the times of TNPROF when IOVIS=O ('geomac-N',
+          GEOMAC-I format; rubarbe.f90, SAVEVISU).
+        Between two exact sections, the plot shifts the points of the last
+        one by the change of the section bed level 'zfd' since then"""
+        if "zfd" not in results.get("table") or len(results.river) != 1:
+            return
+        profiles = results.river.reach(0).profiles
+
+        moving = {}
+        for profile in profiles:
+            markers = [self._point_markers.get(p.name.strip(), " ")
+                       for p in profile.geometry.points]
+            _, _, left, right = self._bed_limits(markers)
+            moving[profile.global_index] = [
+                left < i < right for i in range(len(markers))
+            ]
+        results.set("bed_points", moving)
+
+        timestamps = results.get("timestamps")
+        sections = {}
+        pattern = re.compile(rf"geomac-\d+\.{re.escape(name)}")
+        for fname in sorted(os.listdir(repertory)):
+            if not pattern.fullmatch(fname):
+                continue
+            t, levels = self._read_geomac(os.path.join(repertory, fname))
+            if (len(levels) != len(profiles) or
+                    any(len(z) != len(p.geometry.points)
+                        for z, p in zip(levels, profiles))):
+                logger.warning(f"{fname}: sections differ from the study "
+                               "geometry, ignored")
+                continue
+            # Same save as in PROFIL, with fewer digits (F15.3)
+            timestamp = min(timestamps, key=lambda ts: abs(ts - t))
+            if abs(timestamp - t) > 0.01:
+                continue
+            sections[timestamp] = {
+                p.global_index: np.array(z) for p, z in zip(profiles, levels)
+            }
+        results.set("bed_sections", sections)
+
+    @staticmethod
+    def _read_geomac(path):
+        """Time and level of each point of each section of a GEOMAC file
+        (GEOMAC-I format: top of the first compartment)"""
+        with open(path) as f:
+            lines = iter([line for line in f if line.strip()])
+        count, time = next(lines).split()[:2]
+        levels = []
+        for _ in range(int(count)):
+            points = int(next(lines).split()[2])
+            levels.append([float(next(lines)[1:].split()[1])
+                           for _ in range(points)])
+        return float(time), levels
+
 
 class RubarBE(Rubar3):
     _type = "rubarbe"

src/View/Results/PlotAC.py

@@ -286,6 +286,10 @@ class PlotAC(PamhyrPlot):
         initial_z = np.asarray(profile.geometry.z(), dtype=float)
         result = self.results[self._current_res_id]
 
+        bed = self._get_bed_from_sections(profile, result, initial_z)
+        if bed is not None:
+            return bed
+
         try:
             sediment_timestamps = sorted(result.get("sediment_timestamps"))
         except (KeyError, TypeError):
@@ -324,6 +328,38 @@ class PlotAC(PamhyrPlot):
 
         return initial_z
 
+    def _get_bed_from_sections(self, profile, result, initial_z):
+        """Bed of the solvers that give the bed level of each section at
+        each time ('zfd') and exact sections at some times
+        ('bed_sections', RubarBE): the last exact section before the
+        current time, or the study geometry, with its moving points
+        ('bed_points') shifted by the change of the bed level since then.
+        None for the other results"""
+        try:
+            sections = result.get("bed_sections")
+            moving = result.get("bed_points")[profile.global_index]
+        except KeyError:
+            return None
+
+        current = profile.get_ts_key(self._current_timestamp, "zfd")
+        if current is None:
+            return None
+
+        index = profile.global_index
+        saved = [ts for ts in sorted(sections)
+                 if ts <= self._current_timestamp and index in sections[ts]]
+        if saved:
+            base_timestamp = saved[-1]
+            base = np.asarray(sections[base_timestamp][index], dtype=float)
+        else:
+            base_timestamp = min(result.get("timestamps"))
+            base = initial_z
+
+        level = profile.get_ts_key(base_timestamp, "zfd")
+        if level is None or len(base) != len(moving):
+            return None
+        return base + np.where(moving, current - level, 0.0)
+
     def _get_wet_mask(self, profile, elevation):
         result = self.results[self._current_res_id]
 

src/View/RunSolver/Translate.py

@@ -49,12 +49,50 @@ class RunSolverTranslate(PamhyrTranslate):
             "use a dimensionless critical stress given by the user. "
             "Fill it in the parameters (tab Solid Transport)."
         )
-        self._dict["missing_solid_boundary"] = _translate(
+        self._dict["solid_boundary_downstream"] = _translate(
             "Solver",
-            "Export cancelled: sediment transport (TRASED) is enabled but "
-            "no solid boundary condition is defined at the upstream node "
-            "of reach(es): {reaches}. Add a solid boundary condition, or "
-            "disable sediment transport in the solver parameters."
+            "Export cancelled: solid boundary condition {name} at node "
+            "{node}: RubarBE only reads a solid boundary condition at the "
+            "upstream node. Remove it."
+        )
+        self._dict["solid_boundary_too_long"] = _translate(
+            "Solver",
+            "Export cancelled: solid boundary condition {name} at node "
+            "{node} has {count} points, RubarBE accepts at most {maximum}."
+        )
+        self._dict["save_list_invalid"] = _translate(
+            "Solver",
+            "Export cancelled: {key}: '{value}' is not a valid value. "
+            "Separate the values with spaces or semicolons, use a dot as "
+            "decimal separator, and give the times in seconds or "
+            "days:hours:minutes:seconds."
+        )
+        self._dict["save_list_too_long"] = _translate(
+            "Solver",
+            "Export cancelled: {key} has {count} values, RubarBE accepts "
+            "at most {maximum}."
+        )
+        self._dict["save_list_required"] = _translate(
+            "Solver",
+            "Export cancelled: {flag} is enabled but {key} is empty. Fill "
+            "it in the solver parameters (tab Saves), or disable {flag}."
+        )
+        self._dict["abshyd_outside"] = _translate(
+            "Solver",
+            "Export cancelled: rubarbe_abshyd: abscissa {rk} is outside "
+            "reach {reach}, whose sections go from {first} to {last}."
+        )
+        self._dict["tnprof_outside"] = _translate(
+            "Solver",
+            "rubarbe_tnprof: times {times} s are outside the computation, "
+            "from {tinit} s to {tmax} s. RubarBE saves the earlier ones at "
+            "the first time steps and never reaches the later ones."
+        )
+        self._dict["solid_boundary_invalid"] = _translate(
+            "Solver",
+            "Export cancelled: solid boundary condition {name} at node "
+            "{node} must have D50 > 0 m and sigma >= 1 (1 for a uniform "
+            "sediment)."
         )
         self._dict["multireach_unsupported"] = _translate(
             "Solver",

src/View/SolverParameters/RubarFields.py

@@ -262,6 +262,17 @@ def fields():
                'Les abscisses ou instants demandés '
                'doivent être définis dans les données correspondantes.',
                YES_NO)
+    add('abshyd', 4, 'Abscisses des hydrogrammes (m)',
+        'Abscisses (PK) où sont enregistrés hydrogrammes et limnigrammes '
+        'au pas de sauvegarde des hydrogrammes, séparées par des espaces '
+        'ou des points-virgules ; 100 au plus. Nécessaires si '
+        '« Hydrogrammes aux abscisses choisies » vaut Oui.',
+        kind='rk_list')
+    add('tnprof', 4, 'Instants de sauvegarde des profils (j:h:min:s ou s)',
+        'Instants séparés par des espaces ou des points-virgules ; 100 au '
+        'plus. Nécessaires si « Profils aux instants choisis » vaut Oui ; '
+        'les sorties complémentaires sont aussi écrites à ces instants.',
+        kind='time_list')
     for i in range(1, 4):
         add(f'fdeb{i}', 4, f'Seuil de débit du front {i} (m³/s)',
             'Débit pour lequel à chaque abscisse, est enregistré le temps '
@@ -298,6 +309,18 @@ def validate(field, value):
         return value
     if field.kind == 'text':
         return value
+    if field.kind in ('rk_list', 'time_list'):
+        try:
+            numbers = Rubar3.save_list(value, field.kind == 'time_list')
+        except ValueError as error:
+            raise ValueError(
+                f'Valeur non reconnue : {error}. Séparez les valeurs par '
+                'des espaces ou des points-virgules, avec un point pour '
+                'les décimales.') from None
+        if len(numbers) > Rubar3._max_saves:
+            raise ValueError(f'{Rubar3._max_saves} valeurs au plus '
+                             '(limite de RubarBE).')
+        return value
     if not value and field.optional:
         return value
     value = value.replace(',', '.').replace('d', 'E').replace('D', 'E')
@@ -364,4 +387,12 @@ def active(field, values):
         return values.get('rubarbe_' + source) in accepted
     if key.startswith('fdeb'):
         return values.get('rubarbe_tf_6', 'n').lower() in ('y', 'o')
+
+    def enabled(flag):
+        return values.get('rubarbe_' + flag, 'n').lower() in ('y', 'o')
+
+    if key == 'abshyd':
+        return enabled('tf_2')
+    if key == 'tnprof':
+        return enabled('tf_4') or enabled('iovis')
     return True