129 lines
4.1 KiB
C++
129 lines
4.1 KiB
C++
// heat-flow FFI body: opaque doc, pipeline, mesh accessors. delegates to hsolv's Chsolvdoc.
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#include "../hsolv/StdAfx.h"
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#include "../hsolv/hsolvDlg.h"
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#include "../hsolv/mesh.h"
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#include "../hsolv/spars.h"
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#include "../hsolv/hsolvdoc.h"
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#include "femm_heat.h"
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#include <cstdio>
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#include <cstdarg>
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#include <string>
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// stub view: math files reference TheView globally, math methods call SetPos/SetDlgItemText/InvalidateRect on it.
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static ChsolvDlg s_stub_view;
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ChsolvDlg* TheView = &s_stub_view;
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// math files declare and call these for error reporting.
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int MsgBox(const char* fmt, ...) {
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va_list ap; va_start(ap, fmt);
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std::vfprintf(stderr, fmt, ap);
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std::fputc('\n', stderr);
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va_end(ap);
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return 0;
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}
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int MsgBox(const std::string& s) {
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std::fprintf(stderr, "%s\n", s.c_str());
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return 0;
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}
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// referenced by hsolv/main.cpp's old_main wait loop; main.cpp itself is not linked here.
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inline bool IsWindow(void*) { return true; }
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struct FemmHeatDoc {
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Chsolvdoc doc;
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FemmHeatProgressFn cb = nullptr;
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void* user = nullptr;
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std::string path_buf;
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};
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extern "C" {
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FemmHeatDoc* femm_heat_doc_new(void) {
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auto* d = new FemmHeatDoc();
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d->doc.TheView = &s_stub_view;
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return d;
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}
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void femm_heat_doc_free(FemmHeatDoc* d) {
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delete d;
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}
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void femm_heat_doc_set_progress(FemmHeatDoc* d, FemmHeatProgressFn fn, void* user) {
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if (!d) return;
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d->cb = fn;
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d->user = user;
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}
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int femm_heat_doc_load_feh(FemmHeatDoc* d, const char* path) {
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if (!d || !path) return 0;
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d->path_buf = path;
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d->doc.PathName = const_cast<char*>(d->path_buf.c_str());
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return d->doc.OnOpenDocument() ? 1 : 0;
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}
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int femm_heat_doc_load_mesh(FemmHeatDoc* d) {
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return (d && d->doc.LoadMesh()) ? 1 : 0;
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}
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// loads the previous temperature solution referenced by the .feh.
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int femm_heat_doc_load_prev(FemmHeatDoc* d) {
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return (d && d->doc.LoadPrev()) ? 1 : 0;
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}
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int femm_heat_doc_renumber(FemmHeatDoc* d) {
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return (d && d->doc.Cuthill()) ? 1 : 0;
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}
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// allocates a real-valued CBigLinProb and runs AnalyzeProblem + WriteResults.
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int femm_heat_doc_solve(FemmHeatDoc* d) {
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if (!d) return 0;
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CBigLinProb L;
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L.TheView = &s_stub_view;
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L.Precision = d->doc.Precision;
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if (!L.Create(d->doc.NumNodes + d->doc.NumCircProps, d->doc.BandWidth)) return 0;
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if (!d->doc.AnalyzeProblem(L)) return 0;
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if (!d->doc.WriteResults(L)) return 0;
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return 1;
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}
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int femm_heat_doc_write_results(FemmHeatDoc* /*d*/, const char* /*out_path*/) {
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// results currently emitted inline by solve(); reserved hook for explicit output redirection.
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return 1;
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}
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int femm_heat_doc_axisymmetric (const FemmHeatDoc* d) { return (d && d->doc.ProblemType) ? 1 : 0; }
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double femm_heat_doc_depth (const FemmHeatDoc* d) { return d ? d->doc.Depth : 0.0; }
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double femm_heat_doc_precision (const FemmHeatDoc* d) { return d ? d->doc.Precision : 0.0; }
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double femm_heat_doc_dt (const FemmHeatDoc* d) { return d ? d->doc.dT : 0.0; }
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int femm_heat_doc_num_nodes (const FemmHeatDoc* d) { return d ? d->doc.NumNodes : 0; }
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void femm_heat_doc_node (const FemmHeatDoc* d, int i, double* x, double* y) {
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if (!d || !d->doc.meshnode) return;
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if (x) *x = d->doc.meshnode[i].x;
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if (y) *y = d->doc.meshnode[i].y;
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}
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int femm_heat_doc_num_elements (const FemmHeatDoc* d) { return d ? d->doc.NumEls : 0; }
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void femm_heat_doc_element (const FemmHeatDoc* d, int i, int* p0, int* p1, int* p2) {
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if (!d || !d->doc.meshele) return;
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if (p0) *p0 = d->doc.meshele[i].p[0];
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if (p1) *p1 = d->doc.meshele[i].p[1];
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if (p2) *p2 = d->doc.meshele[i].p[2];
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}
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int femm_heat_doc_num_materials (const FemmHeatDoc* d) { return d ? d->doc.NumBlockProps : 0; }
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int femm_heat_doc_num_boundaries (const FemmHeatDoc* d) { return d ? d->doc.NumLineProps : 0; }
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int femm_heat_doc_num_conductors (const FemmHeatDoc* d) { return d ? d->doc.NumCircProps : 0; }
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// field sampling is post-processor territory; not exposed by the solver alone.
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double femm_heat_doc_field_at (const FemmHeatDoc* /*d*/, double /*x*/, double /*y*/, FemmHeatField /*c*/) {
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return 0.0;
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}
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} // extern "C"
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