Rename the project to FieldCraft

Crates fieldcraft-*, binaries fieldcraft and fieldcraft-cli, the .fieldcraft file (format tag
fieldcraft/1, manifest fieldcraft.json), FIELDCRAFT_* environment variables, the MCP server
name, egui widget ids (fc_*), the app icon document FieldCraft.icon and its generated family,
docs and licences. No compatibility shim: no files of the earlier name exist.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NmAttHhUZTokgPeEJia8sm

crates/decks/src/abaqus.rs

@@ -6,7 +6,7 @@
 //! # Layout
 //!
 //! The deck is *flat*: nodes, elements, sets, materials, sections and couplings sit at model level,
-//! with no parts, assembly or instances. ModelCraft has one mesh with model-wide labels and no
+//! with no parts, assembly or instances. FieldCraft has one mesh with model-wide labels and no
 //! instance transforms, so a part/assembly wrapper would only prefix every set name with an
 //! instance name (`Part-1-1.root`) and bring the 80-character limit on the joined name closer. When
 //! the model gains several parts or instances the writer switches to the part/assembly form.
@@ -53,7 +53,7 @@
 //!
 //! # Element types
 //!
-//! | ModelCraft | Solid section | Shell section | Beam | Rod |
+//! | FieldCraft | Solid section | Shell section | Beam | Rod |
 //! |---|---|---|---|---|
 //! | tet4 | C3D4 (H) | | | |
 //! | tet10 | C3D10 (H) | | | |
@@ -76,7 +76,7 @@
 //! differs by direction and a spring along a skew fixed vector are reported (they need a local
 //! orientation, not written yet).
 //!
-//! | ModelCraft | Plane stress | Plane strain | Axisymmetric |
+//! | FieldCraft | Plane stress | Plane strain | Axisymmetric |
 //! |---|---|---|---|
 //! | tri3 | CPS3 | CPE3 | CAX3 |
 //! | tri6 | CPS6 | CPE6 | CAX6 |
@@ -115,7 +115,7 @@
 use std::collections::{BTreeMap, BTreeSet};
 use std::fmt::Write as _;
 
-use modelcraft_model::{
+use fieldcraft_model::{
     BeamProfile, BoundaryCondition, CouplingKind, Elastic, Element, ElementKind, Hardening, Integration, Load, Model, OutputVariable, Plastic,
     Procedure, Resolved, Section, SectionKind, Step, Symmetry, Target,
 };
@@ -330,10 +330,10 @@ fn discrete_groups<'r>(model: &Model, r: &'r Resolved) -> Result<Vec<DiscreteGro
     let mut next = model.elements().keys().next_back().map_or(1, |l| l.saturating_add(1));
     let mut label = || -> Result<u32> {
         let l = next;
-        if l > modelcraft_model::MAX_LABEL {
+        if l > fieldcraft_model::MAX_LABEL {
             return Err(Error::Limit(format!(
                 "no element label left below {} for point masses, springs and dashpots",
-                modelcraft_model::MAX_LABEL as u64 + 1
+                fieldcraft_model::MAX_LABEL as u64 + 1
             )));
         }
         next += 1;
@@ -371,7 +371,7 @@ fn discrete_groups<'r>(model: &Model, r: &'r Resolved) -> Result<Vec<DiscreteGro
     }
     for s in &r.springs {
         let what = s.kind();
-        let line = matches!(s.direction, modelcraft_model::ResolvedDirection::Line(_));
+        let line = matches!(s.direction, fieldcraft_model::ResolvedDirection::Line(_));
         let (element_type, dofs, nodes) = match (s.second, crate::axis_dof(s.direction), line) {
             (Some(b), _, true) => (if s.dashpot { "DASHPOTA" } else { "SPRINGA" }, String::new(), vec![s.first, b]),
             (Some(b), Some(d), false) => (if s.dashpot { "DASHPOT2" } else { "SPRING2" }, format!("{d}, {d}"), vec![s.first, b]),
@@ -556,7 +556,7 @@ impl<'a> StepLoads<'a> {
     /// `everything` is every element and the section sets that hold them (gravity on the whole
     /// model).
     fn new(model: &'a Model, r: &'a Resolved, step: &'a Step, everything: &'a (Vec<&'a str>, Vec<u32>)) -> StepLoads<'a> {
-        let axisymmetric = r.extent() == Some(modelcraft_model::Extent::Revolved);
+        let axisymmetric = r.extent() == Some(fieldcraft_model::Extent::Revolved);
         let mut s = StepLoads { concentrated: crate::concentrated_loads(model, r, &step.loads), axisymmetric, ..StepLoads::default() };
         let (mut gravity, mut body) = (Vec::new(), Vec::new());
         for name in &step.loads {
@@ -637,8 +637,8 @@ impl Deck {
             None => "units not specified".to_string(),
         };
         self.line("*HEADING");
-        self.line(&format!("ModelCraft model, {units}"));
-        self.comment("Written by ModelCraft. The numbers are in one consistent unit system and are not converted.");
+        self.line(&format!("FieldCraft model, {units}"));
+        self.comment("Written by FieldCraft. The numbers are in one consistent unit system and are not converted.");
     }
 
     fn nodes(&mut self, model: &Model) -> Result<()> {

crates/decks/src/lib.rs

@@ -1,7 +1,7 @@
 //! Solver decks: the solver-neutral model written as Abaqus input, Nastran bulk data and LS-DYNA
 //! keyword files. Each format is its own module (`abaqus`, `nastran`, `lsdyna`), written from the
 //! vendor's public reference manual in our own words; examples and expected files are our own.
-//! Writers read [`modelcraft_model::Model`] and its `resolve()` result, never another format.
+//! Writers read [`fieldcraft_model::Model`] and its `resolve()` result, never another format.
 //!
 //! Writers produce text; saving it is the caller's business (the engine's `deck.write`), so the
 //! crate stays free of the file system. [`FORMATS`] lists every writer by the name `deck.write`
@@ -15,8 +15,8 @@ pub mod nastran;
 
 use std::collections::{BTreeMap, BTreeSet};
 
-use modelcraft_model::nodal::edge_pressure;
-use modelcraft_model::{Diagnostic, Load, Model, Resolved, ResolvedDirection};
+use fieldcraft_model::nodal::edge_pressure;
+use fieldcraft_model::{Diagnostic, Load, Model, Resolved, ResolvedDirection};
 
 #[derive(Debug, Clone, PartialEq, thiserror::Error)]
 pub enum Error {
@@ -25,7 +25,7 @@ pub enum Error {
     Unsupported { format: &'static str, what: String },
     /// The model is not ready to write (its check failed).
     #[error(transparent)]
-    Model(#[from] modelcraft_model::Error),
+    Model(#[from] fieldcraft_model::Error),
     #[error("limit reached: {0}")]
     Limit(String),
 }
@@ -70,11 +70,11 @@ impl Format {
 /// stay (the check warns about the ones no step uses).
 pub fn with_steps(model: &Model, names: &[String]) -> Result<Model> {
     if names.is_empty() {
-        return Err(Error::Model(modelcraft_model::Error::Invalid("choose at least one step to write".into())));
+        return Err(Error::Model(fieldcraft_model::Error::Invalid("choose at least one step to write".into())));
     }
     if let Some(n) = names.iter().find(|n| model.step(n).is_none()) {
-        let shown: String = n.chars().take(modelcraft_model::MAX_NAME_LEN).collect();
-        return Err(Error::Model(modelcraft_model::Error::NotFound(format!("step `{shown}`"))));
+        let shown: String = n.chars().take(fieldcraft_model::MAX_NAME_LEN).collect();
+        return Err(Error::Model(fieldcraft_model::Error::NotFound(format!("step `{shown}`"))));
     }
     let mut out = model.clone();
     let dropped: Vec<String> = model.steps().iter().map(|s| s.name.clone()).filter(|s| !names.contains(s)).collect();
@@ -84,7 +84,7 @@ pub fn with_steps(model: &Model, names: &[String]) -> Result<Model> {
     Ok(out)
 }
 
-/// A fluid step: solved by ModelCraft's lattice Boltzmann solver, never written to a deck.
+/// A fluid step: solved by FieldCraft's lattice Boltzmann solver, never written to a deck.
 pub(crate) fn fluid_step(format: &'static str, step: &str) -> Error {
     Error::Unsupported { format, what: format!("fluid step `{step}` (solve it with solve.fluid; write the structural steps only)") }
 }
@@ -155,7 +155,7 @@ pub fn concentrated_loads<'a>(model: &Model, r: &Resolved, active: impl IntoIter
 
 /// The consistent nodal forces (degrees of freedom 1 and 2) of the active pressures on a 2D
 /// model's element edges, for formats that write them as concentrated loads: the model's edge
-/// integration ([`modelcraft_model::nodal::edge_pressure`]), a positive pressure pushing
+/// integration ([`fieldcraft_model::nodal::edge_pressure`]), a positive pressure pushing
 /// into the element, summed per node and direction; zero sums are left out.
 pub fn edge_pressure_loads<'a>(model: &Model, r: &Resolved, active: impl IntoIterator<Item = &'a str>) -> Result<BTreeMap<(u32, u8), f64>> {
     let mut out: BTreeMap<(u32, u8), f64> = BTreeMap::new();

crates/decks/src/lsdyna/elements.rs

@@ -17,7 +17,7 @@
 //!
 //! Every mapping is checked by the sign of the element Jacobian in the tests.
 
-use modelcraft_model::{ElementKind, Formulation, Integration, SectionKind};
+use fieldcraft_model::{ElementKind, Formulation, Integration, SectionKind};
 
 /// How an element is written: its keyword and its node list in LS-DYNA order.
 #[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord)]

crates/decks/src/lsdyna/mod.rs

@@ -61,7 +61,7 @@ mod elements;
 
 use std::collections::{BTreeMap, BTreeSet};
 
-use modelcraft_model::{
+use fieldcraft_model::{
     BoundaryCondition, CouplingKind, Diagnostic, Dofs, Elastic, Element, ElementKind, Hardening, Load, Material, Model, OutputVariable, Plastic,
     Procedure, Resolved, ResolvedDirection, Section, SectionKind, Step, Target,
 };
@@ -102,7 +102,7 @@ const MAX_SHELL_POINTS: u32 = 10;
 
 /// A resolved model that breaks its own invariants (unreachable after `resolve`).
 fn broken(what: String) -> Error {
-    Error::Model(modelcraft_model::Error::Invalid(format!("inconsistent resolved model: {what}")))
+    Error::Model(fieldcraft_model::Error::Invalid(format!("inconsistent resolved model: {what}")))
 }
 
 /// One `*PART`: a section's elements of one kind.
@@ -159,7 +159,7 @@ fn write_with(model: &Model, r: &Resolved) -> Result<Written> {
     let cases = if steps.len() > 1 { steps.len() } else { 0 };
 
     d.line("*KEYWORD long=y");
-    d.comment("Written by ModelCraft: implicit linear analysis, long format (20-column fields).");
+    d.comment("Written by FieldCraft: implicit linear analysis, long format (20-column fields).");
     d.comment(&format!("Units: {} (consistent; nothing is converted).", model.units().label()));
     if cases > 0 {
         d.comment(&format!("{cases} steps are written as *CASE analyses: run LS-DYNA with CASE on its command line."));
@@ -676,7 +676,7 @@ fn discrete(d: &mut Deck, model: &Model, r: &Resolved, plan: &Plan) -> Result<()
     let limit = |what: &str| Error::Limit(format!("no {what} id left for point masses, springs and dashpots"));
     let mut eid = model.elements().keys().next_back().copied().unwrap_or(0);
     let mut next_eid = || -> Result<u32> {
-        eid = eid.checked_add(1).filter(|e| *e <= modelcraft_model::MAX_LABEL).ok_or_else(|| limit("element"))?;
+        eid = eid.checked_add(1).filter(|e| *e <= fieldcraft_model::MAX_LABEL).ok_or_else(|| limit("element"))?;
         Ok(eid)
     };
     d.comment("Point masses");
@@ -754,7 +754,7 @@ fn discrete(d: &mut Deck, model: &Model, r: &Resolved, plan: &Plan) -> Result<()
                 while taken.contains(&node) {
                     node = node.checked_add(1).ok_or_else(|| limit("node"))?;
                 }
-                if node > modelcraft_model::MAX_LABEL {
+                if node > fieldcraft_model::MAX_LABEL {
                     return Err(limit("node"));
                 }
                 ground.push((node, model.label_xyz(s.first).ok_or_else(|| broken(format!("node {}", s.first)))?));

crates/decks/src/nastran/mod.rs

@@ -52,7 +52,7 @@ mod card;
 use std::collections::{BTreeMap, BTreeSet};
 use std::fmt::Write as _;
 
-use modelcraft_model::{
+use fieldcraft_model::{
     BeamProfile, Coupling, CouplingKind, Dofs, Elastic, ElementKind, Formulation, Hardening, Integration, Load, MAX_LABEL, Model, OutputVariable,
     Plastic, Procedure, Resolved, SectionKind, Step,
 };
@@ -688,9 +688,9 @@ impl<'m> Deck<'m> {
 
     fn emit(&self) -> Result<String> {
         let mut out = String::new();
-        out.push_str("$ Nastran bulk data written by ModelCraft\n");
+        out.push_str("$ Nastran bulk data written by FieldCraft\n");
         let _ = writeln!(out, "$ units: {}", self.model.units().label());
-        let _ = writeln!(out, "SOL {}\nCEND\nTITLE = ModelCraft model\nECHO = NONE", self.sol);
+        let _ = writeln!(out, "SOL {}\nCEND\nTITLE = FieldCraft model\nECHO = NONE", self.sol);
         for (i, sub) in self.subcases.iter().enumerate() {
             let _ = writeln!(out, "SUBCASE {}", i + 1);
             let title: String = format!("  SUBTITLE = {}", sub.step.name).chars().take(72).collect();
@@ -945,7 +945,7 @@ impl<'m> Deck<'m> {
     }
 
     /// A `PLOAD4` for one element face, positive pushing into the element.
-    fn pressure(&self, sid: u32, f: modelcraft_model::ElementFace, magnitude: f64) -> Option<Card> {
+    fn pressure(&self, sid: u32, f: fieldcraft_model::ElementFace, magnitude: f64) -> Option<Card> {
         let el = self.model.element(f.element)?;
         let card = Card::new("PLOAD4").int(sid).int(f.element);
         if el.kind.dimension() == 2 {
@@ -1010,7 +1010,7 @@ fn plasticity(out: &mut String, name: &str, mid: u32, young: f64, plastic: &Plas
             write_named(out, &format!("stress-strain curve of {name}"), tid, Card::new("TABLES1").int(tid).end_line().reals(curve).text("ENDT"))
         }
         (Plastic::Table { .. }, None) | (Plastic::JohnsonCook { .. }, _) => {
-            Err(Error::Model(modelcraft_model::Error::Invalid(format!("material `{name}`: its plasticity was not planned for MATS1"))))
+            Err(Error::Model(fieldcraft_model::Error::Invalid(format!("material `{name}`: its plasticity was not planned for MATS1"))))
         }
     }
 }