Arcane  4.1.12.0
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SimpleHTMLMeshAMRPatchExporter.cc
1// -*- tab-width: 2; indent-tabs-mode: nil; coding: utf-8-with-signature -*-
2//-----------------------------------------------------------------------------
3// Copyright 2000-2026 CEA (www.cea.fr) IFPEN (www.ifpenergiesnouvelles.com)
4// See the top-level COPYRIGHT file for details.
5// SPDX-License-Identifier: Apache-2.0
6//-----------------------------------------------------------------------------
7/*---------------------------------------------------------------------------*/
8/* SimpleHTMLMeshAMRPatchExporter.cc (C) 2000-2026 */
9/* */
10/* HTML mesh writer, with SVG. */
11/*---------------------------------------------------------------------------*/
12/*---------------------------------------------------------------------------*/
13
14// This must be put first for MSVC otherwise we won't have 'M_PI'
15#define _USE_MATH_DEFINES
16#include <cmath>
17
18#include "arcane/cartesianmesh/SimpleHTMLMeshAMRPatchExporter.h"
19
20#include "arcane/cartesianmesh/AMRPatchPosition.h"
21
22#include "arcane/utils/Iostream.h"
23#include "arcane/utils/StringBuilder.h"
24
25#include "arcane/core/ItemGroup.h"
26#include "arcane/core/IMesh.h"
27#include "arcane/core/VariableTypes.h"
28
29#include <set>
30#include <map>
31
32/*---------------------------------------------------------------------------*/
33/*---------------------------------------------------------------------------*/
34
35namespace Arcane
36{
37using std::ostream;
38
39/*---------------------------------------------------------------------------*/
40/*---------------------------------------------------------------------------*/
41
42class SimpleHTMLMeshAMRPatchExporter::Impl
43{
44 public:
45
46 Impl() = default;
47 void addPatch(const CartesianPatch& patch);
48 void write(ostream& ofile);
49
50 private:
51
52 void _writeJs(ostream& ofile);
53 void _writeCss(ostream& ofile);
54 void _writeBodyHtml(ostream& ofile);
55 void _writeHeaderSvg(const CartesianPatch& ground_patch);
56 void _writeText(Real x, Real y, StringView color, StringView text, Real rotation, bool do_background);
57 void _writePatch(const CartesianPatch& patch);
58
59 private:
60
61 Real m_font_size = 0;
62 bool m_has_ground = false;
63 bool m_has_patch = false;
64 StringBuilder m_header_svg{};
65 StringBuilder m_patches{};
66};
67
68/*---------------------------------------------------------------------------*/
69/*---------------------------------------------------------------------------*/
70
71/*---------------------------------------------------------------------------*/
72/*---------------------------------------------------------------------------*/
73
74void SimpleHTMLMeshAMRPatchExporter::Impl::
75addPatch(const CartesianPatch& patch)
76{
77 if (patch.position().isNull()) {
78 return;
79 }
80 if (patch.level() == 0) {
81 if (m_has_ground) {
82 ARCANE_FATAL("Ground patch already wrote");
83 }
84 _writeHeaderSvg(patch);
85 m_has_ground = true;
86 }
87 Int32 level = patch.level();
88 Int32 index = patch.index();
89
90 m_patches += String::format("<g class='level-{0}' id='patch-{1}'>\n", level, index);
91 _writePatch(patch);
92 m_patches += "</g>\n";
93 m_has_patch = true;
94}
95
96/*---------------------------------------------------------------------------*/
97/*---------------------------------------------------------------------------*/
98
99void SimpleHTMLMeshAMRPatchExporter::Impl::
100write(ostream& ofile)
101{
102 if (!m_has_patch) {
103 return;
104 }
105 if (!m_has_ground) {
106 ARCANE_FATAL("Need ground patch to write");
107 }
108 ofile << "<!DOCTYPE html>\n";
109 ofile << "<html>\n";
110
111 ofile << "<head>\n";
112 _writeJs(ofile);
113 _writeCss(ofile);
114 ofile << "</head>\n";
115
116 ofile << "<body>\n";
117 _writeBodyHtml(ofile);
118 ofile << "</body>\n";
119
120 ofile << "</html>\n";
121}
122
123/*---------------------------------------------------------------------------*/
124/*---------------------------------------------------------------------------*/
125
126void SimpleHTMLMeshAMRPatchExporter::Impl::
127_writeJs(ostream& ofile)
128{
129 ofile << "<script>\n";
130 //TODO
131 ofile << "</script>\n";
132}
133
134/*---------------------------------------------------------------------------*/
135/*---------------------------------------------------------------------------*/
136
137void SimpleHTMLMeshAMRPatchExporter::Impl::
138_writeCss(ostream& ofile)
139{
140 ofile << "<style>\n";
141
142 ofile << ".uid-text {font-size: " << m_font_size << "px;}\n";
143
144 ofile << "</style>\n";
145}
146
147/*---------------------------------------------------------------------------*/
148/*---------------------------------------------------------------------------*/
149
150void SimpleHTMLMeshAMRPatchExporter::Impl::
151_writeBodyHtml(ostream& ofile)
152{
153 ofile << m_header_svg;
154 ofile << m_patches;
155 ofile << "</g>\n";
156 ofile << "</svg>\n";
157}
158
159/*---------------------------------------------------------------------------*/
160/*---------------------------------------------------------------------------*/
161
162void SimpleHTMLMeshAMRPatchExporter::Impl::
163_writeHeaderSvg(const CartesianPatch& ground_patch)
164{
165 CellGroup cells = ground_patch.patchInterface()->cells();
166 if (ground_patch.level() != 0) {
167 ARCANE_FATAL("Not ground patch");
168 }
169 if (cells.null()) {
170 ARCANE_FATAL("Empty patch");
171 }
172 IMesh* mesh = cells.mesh();
173 Int32 mesh_dim = mesh->dimension();
174 if (mesh_dim != 2)
175 ARCANE_FATAL("Invalid dimension ({0}) for mesh. Only 2D mesh is allowed", mesh_dim);
176
177 // Note: since by default in SVG the origin is top left, we take for each
178 // 'Y' value its opposite for display.
179 // NOTE: we could use SVG transformations but it is more complicated to
180 // handle for text display
181
182 VariableNodeReal3& nodes_coord = mesh->nodesCoordinates();
183 Real mul_value = 1000.0;
184 const Real min_val = std::numeric_limits<Real>::lowest();
185 const Real max_val = std::numeric_limits<Real>::max();
186 Real2 min_bbox(max_val, max_val);
187 Real2 max_bbox(min_val, min_val);
188 // Calculate the center of the cells and the bounding box of the cell group.
189 std::map<Int32, Real2> cells_center;
190 ENUMERATE_CELL (icell, cells) {
191 Cell cell = *icell;
192 Real3 center;
193 Integer nb_node = cell.nbNode();
194 if (nb_node > 0) {
195 for (Integer i = 0; i < nb_node; ++i) {
196 Real3 node_coord_3d = nodes_coord[cell.node(i)] * mul_value;
197 Real2 node_coord(node_coord_3d.x, -node_coord_3d.y);
198 min_bbox = math::min(min_bbox, node_coord);
199 max_bbox = math::max(max_bbox, node_coord);
200 center += node_coord_3d;
201 }
202 center /= nb_node;
203 }
204 Real2 center_2d(center.x, -center.y);
205 cells_center[cell.localId()] = center_2d;
206 }
207
208 Real bbox_width = math::abs(max_bbox.x - min_bbox.x);
209 Real bbox_height = math::abs(max_bbox.y - min_bbox.y);
210 Real max_dim = math::max(bbox_width, bbox_height);
211 m_font_size = max_dim / 80.0;
212
213 // Add 10% of the patch dimensions on both sides of the viewBox to ensure
214 // that the text is properly written (as it might overflow the bounding box)
215 m_header_svg += "<?xml version=\"1.0\"?>\n";
216 m_header_svg += String::format("<svg viewBox='{0},{1},{2},{3}' xmlns='http://www.w3.org/2000/svg' version='1.1'>\n",
217 (min_bbox.x - bbox_width * 0.1),
218 (min_bbox.y - bbox_height * 0.1),
219 (bbox_width * 1.2),
220 (bbox_height * 1.2));
221 m_header_svg += String::format("<!-- V3 bbox min_x={0} min_y={1} max_x={2} max_y={3} -->",
222 min_bbox.x,
223 min_bbox.y,
224 max_bbox.x,
225 max_bbox.y);
226
227 m_header_svg += "<title>Mesh</title>\n";
228 m_header_svg += "<desc>MeshExample</desc>\n";
229
230 //ofile << "<g transform='matrix(1,0,0,-1,0,200)'>\n";
231 //ofile << "<g transform='translate(" << min_bbox.x << "," << -min_bbox.y << ")'>\n";
232 m_header_svg += "<g>\n";
233}
234
235/*---------------------------------------------------------------------------*/
236/*---------------------------------------------------------------------------*/
237
238void SimpleHTMLMeshAMRPatchExporter::Impl::
239_writeText(Real x, Real y, StringView color, StringView text, Real rotation, bool do_background)
240{
241 // Displays a white background below the text.
242 if (do_background) {
243 m_patches += String::format("<text class='uid-text' x='{0}' y='{1}' dominant-baseline='central' text-anchor='middle' style='stroke:white; stroke-width:0.6em'", x, y);
244 if (rotation != 0.0) {
245 m_patches += String::format(" transform='rotate({0}, {1}, {2})'", rotation, x, y);
246 }
247 m_patches += String::format(">{0}</text>\n", text);
248 }
249
250 m_patches += String::format("<text class='uid-text' x='{0}' y='{1}' dominant-baseline='central' text-anchor='middle' fill='{2}'", x, y, color);
251
252 if (rotation != 0.0) {
253 m_patches += String::format(" transform='rotate({0}, {1}, {2})'", rotation, x, y);
254 }
255 m_patches += String::format(">{0}</text>\n", text);
256}
257
258/*---------------------------------------------------------------------------*/
259/*---------------------------------------------------------------------------*/
260
261void SimpleHTMLMeshAMRPatchExporter::Impl::
262_writePatch(const CartesianPatch& patch)
263{
264 CellGroup cells = patch.patchInterface()->cells();
265 if (cells.null())
266 return;
267 IMesh* mesh = cells.mesh();
268 Int32 mesh_dim = mesh->dimension();
269 if (mesh_dim != 2)
270 ARCANE_FATAL("Invalid dimension ({0}) for mesh. Only 2D mesh is allowed", mesh_dim);
271
272 // Note: since by default in SVG the origin is top left, we take for each
273 // 'Y' value its opposite for display.
274 // NOTE: we could use SVG transformations but it is more complicated to
275 // handle for text display
276
277 VariableNodeReal3& nodes_coord = mesh->nodesCoordinates();
278 Real mul_value = 1000.0;
279 const Real min_val = std::numeric_limits<Real>::lowest();
280 const Real max_val = std::numeric_limits<Real>::max();
281 Real2 min_bbox(max_val, max_val);
282 Real2 max_bbox(min_val, min_val);
283
284 // Calculate the center of the cells and the bounding box of the cell group.
285 std::map<Int32, Real2> cells_center;
286 ENUMERATE_CELL (icell, cells) {
287 Cell cell = *icell;
288 Real3 center;
289 Integer nb_node = cell.nbNode();
290 if (nb_node > 0) {
291 for (Integer i = 0; i < nb_node; ++i) {
292 Real3 node_coord_3d = nodes_coord[cell.node(i)] * mul_value;
293 Real2 node_coord(node_coord_3d.x, -node_coord_3d.y);
294 min_bbox = math::min(min_bbox, node_coord);
295 max_bbox = math::max(max_bbox, node_coord);
296 center += node_coord_3d;
297 }
298 center /= nb_node;
299 }
300 Real2 center_2d(center.x, -center.y);
301 cells_center[cell.localId()] = center_2d;
302 }
303
304 // Display the contour and uniqueId() for each cell.
305 ENUMERATE_CELL (icell, cells) {
306 Cell cell = *icell;
307 Real2 cell_pos = cells_center[cell.localId()];
308 Integer nb_node = cell.nbNode();
309 m_patches += "<path d='";
310 nb_node = cell.typeInfo()->linearTypeInfo()->nbLocalNode();
311 for (Integer i = 0; i < nb_node; ++i) {
312 Real3 node_coord_3d = nodes_coord[cell.node(i)];
313 Real2 node_coord(node_coord_3d.x, -node_coord_3d.y);
314 node_coord *= mul_value;
315 if (i == 0)
316 m_patches += "M ";
317 else
318 m_patches += "L ";
319 // performs a homothety to clearly see the faces in case of welding.
320 Real2 coord = cell_pos + (node_coord - cell_pos) * 0.98;
321 m_patches += String::format("{0} {1} ", coord.x, coord.y);
322 }
323 m_patches += "z'";
324 if (icell->hasFlags(ItemFlags::II_Overlap) && icell->hasFlags(ItemFlags::II_InPatch)) {
325 if (cell.isOwn())
326 m_patches += " fill='magenta'";
327 else
328 m_patches += " fill='darkmagenta'";
329 }
330 if (icell->hasFlags(ItemFlags::II_Overlap)) {
331 if (cell.isOwn())
332 m_patches += " fill='orange'";
333 else
334 m_patches += " fill='darkorange'";
335 }
336 else {
337 if (cell.isOwn())
338 m_patches += " fill='yellow'";
339 else
340 m_patches += " fill='gold'";
341 }
342 m_patches += " stroke='black'";
343 m_patches += " stroke-width='1'/>\n";
344 _writeText(cell_pos.x, cell_pos.y, "blue", String::fromNumber(cell.uniqueId().asInt64()), 0.0, false);
345 }
346
347 // Display the uniqueId() for each node.
348 {
349 // Set of nodes already processed to display them only once.
350 std::set<Int32> nodes_done;
351 ENUMERATE_CELL (icell, cells) {
352 Cell cell = *icell;
353 Integer nb_node = cell.nbNode();
354 for (Integer i = 0; i < nb_node; ++i) {
355 Node node = cell.node(i);
356 Int32 lid = node.localId();
357 if (nodes_done.find(lid) != nodes_done.end())
358 continue;
359 nodes_done.insert(lid);
360 Real3 coord_3d = nodes_coord[node];
361 Real2 coord(coord_3d.x, -coord_3d.y);
362 coord *= mul_value;
363 _writeText(coord.x, coord.y, "green", String::fromNumber(node.uniqueId().asInt64()), 0.0, true);
364 }
365 }
366 }
367
368 // Display the uniqueId() for each face.
369 // Performs a possible rotation so that the display of the face number is aligned
370 // with its segment.
371 {
372 // Set of faces already processed to display them only once.
373 std::set<Int32> faces_done;
374 ENUMERATE_CELL (icell, cells) {
375 Cell cell = *icell;
376 Integer nb_face = cell.nbFace();
377 for (Integer i = 0; i < nb_face; ++i) {
378 Face face = cell.face(i);
379 Int32 lid = face.localId();
380 if (faces_done.find(lid) != faces_done.end())
381 continue;
382 faces_done.insert(lid);
383 // In case of multi-dimensional mesh, it is possible
384 // to have faces reduced to a point.
385 if (face.nbNode() < 2)
386 continue;
387 Real3 node0_coord = nodes_coord[face.node(0)];
388 Real3 node1_coord = nodes_coord[face.node(1)];
389 Real3 face_coord_3d = (node0_coord + node1_coord) / 2.0;
390
391 Real2 face_coord(face_coord_3d.x, -face_coord_3d.y);
392 face_coord *= mul_value;
393 Real3 direction = node1_coord - node0_coord;
394 direction = math::mutableNormalize(direction);
395 // TODO: check between -1.0 and 1.0
396 // Calculates the rotation angle so that the display of the face number is aligned with
397 // the edge line of the face.
398 double angle = math::abs(std::asin(direction.y)) / M_PI * 180.0;
399 Real2 cell_center = cells_center[cell.localId()];
400 Real2 coord = cell_center + (face_coord - cell_center) * 0.92;
401 _writeText(coord.x, coord.y, "red", String::fromNumber(face.uniqueId().asInt64()), angle, true);
402 }
403 }
404 }
405}
406
407/*---------------------------------------------------------------------------*/
408/*---------------------------------------------------------------------------*/
409
410/*---------------------------------------------------------------------------*/
411/*---------------------------------------------------------------------------*/
412
413SimpleHTMLMeshAMRPatchExporter::
414SimpleHTMLMeshAMRPatchExporter()
415: m_p(new Impl())
416{}
417
418/*---------------------------------------------------------------------------*/
419/*---------------------------------------------------------------------------*/
420
421SimpleHTMLMeshAMRPatchExporter::
422~SimpleHTMLMeshAMRPatchExporter()
423{
424 delete m_p;
425}
426
427/*---------------------------------------------------------------------------*/
428/*---------------------------------------------------------------------------*/
429
430void SimpleHTMLMeshAMRPatchExporter::
431addPatch(const CartesianPatch& patch)
432{
433 m_p->addPatch(patch);
434}
435
436/*---------------------------------------------------------------------------*/
437/*---------------------------------------------------------------------------*/
438
439void SimpleHTMLMeshAMRPatchExporter::
440write(std::ostream& ofile)
441{
442 m_p->write(ofile);
443}
444
445/*---------------------------------------------------------------------------*/
446/*---------------------------------------------------------------------------*/
447
448} // End namespace Arcane
449
450/*---------------------------------------------------------------------------*/
451/*---------------------------------------------------------------------------*/
ARCANE_FATAL
#define ARCANE_FATAL(...)
Macro throwing a FatalErrorException.
Definition ArcaneGlobal.h:749
ENUMERATE_CELL
#define ENUMERATE_CELL(name, group)
Generic enumerator for a cell group.
Definition ItemEnumerator.h:446
Arcane::AMRPatchPosition::isNull
bool isNull() const
Method to know if the patch is null.
Definition AMRPatchPosition.cc:261
Arcane::CartesianPatch
AMR Patch of a Cartesian mesh.
Definition CartesianPatch.h:34
Arcane::CartesianPatch::index
Integer index() const
Index of the patch in the patch array.
Definition CartesianPatch.cc:48
Arcane::CartesianPatch::position
AMRPatchPosition position() const
Method to retrieve the patch position in the Cartesian mesh.
Definition CartesianPatch.h:140
Arcane::CartesianPatch::level
Integer level() const
Patch level.
Definition CartesianPatch.h:79
Arcane::IMeshBase::dimension
virtual Integer dimension()=0
Mesh dimension (1D, 2D, or 3D).
Arcane::ItemFlags::II_Overlap
@ II_Overlap
[AMR Patch] The entity is marked as overlapping with at least one AMR patch.
Definition ItemFlags.h:87
Arcane::ItemFlags::II_InPatch
@ II_InPatch
[AMR Patch] The entity is marked as being in an AMR patch.
Definition ItemFlags.h:92
Arcane::ItemGroup::mesh
IMesh * mesh() const
Mesh to which this group belongs (0 for the null group).
Definition ItemGroup.h:131
Arcane::StringBuilder
Unicode character string constructor.
Definition arccore/src/base/arccore/base/StringBuilder.h:48
Arcane::StringView
View of a UTF-8 character string.
Definition StringView.h:44
Arcane::math::min
__host__ __device__ Real2 min(Real2 a, Real2 b)
Returns the minimum of two Real2.
Definition MathUtils.h:346
Arcane::math::max
T max(const T &a, const T &b, const T &c)
Returns the maximum of three elements.
Definition MathUtils.h:407
Arcane::CellGroup
ItemGroupT< Cell > CellGroup
Group of cells.
Definition ItemTypes.h:184
Arcane::VariableNodeReal3
MeshVariableScalarRefT< Node, Real3 > VariableNodeReal3
Coordinate type quantity at node.
Definition VariableTypedef.h:360
Arcane::math::mutableNormalize
Real2 & mutableNormalize(Real2 &v)
Normalizes the pair.
Definition Real2.h:494
Arcane
-- tab-width: 2; indent-tabs-mode: nil; coding: utf-8-with-signature --
Definition AbstractCaseDocumentVisitor.cc:21
Arcane::Integer
Int32 Integer
Type representing an integer.
Definition ArccoreGlobal.h:293
Arcane::Real
double Real
Type representing a real number.
Definition ArccoreGlobal.h:275
Arcane::eMeshAMRKind::Cell
@ Cell
The mesh is AMR by cell.
Definition MeshKind.h:53
Arcane::Int32
std::int32_t Int32
Signed integer type of 32 bits.
Definition ArccoreGlobal.h:233