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Allow exporting Three.js either as bare mesh or mesh with viewer.

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Most people just want a single self-contained .html file, but more
advanced usage will involve embedding in a webpage, where the default
viewer would be copied and customized, and fed with bare mesh export.
This commit is contained in:
whitequark 2016-01-11 10:53:04 +00:00
parent 750842610c
commit 86315b2b1f
2 changed files with 31 additions and 17 deletions
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42
src/export.cpp
View File

@ -575,7 +575,8 @@ void SolveSpaceUI::ExportMeshTo(const std::string &filename) {
ExportMeshAsStlTo(f, m);
} else if(FilenameHasExtension(filename, ".obj")) {
ExportMeshAsObjTo(f, m);
} else if(FilenameHasExtension(filename, ".js")) {
} else if(FilenameHasExtension(filename, ".js") ||
FilenameHasExtension(filename, ".html")) {
SEdgeList *e = &(SK.GetGroup(SS.GW.activeGroup)->displayEdges);
ExportMeshAsThreeJsTo(f, filename, m, e);
} else {
@ -658,15 +659,14 @@ void SolveSpaceUI::ExportMeshAsObjTo(FILE *f, SMesh *sm) {
//-----------------------------------------------------------------------------
// Export the mesh as a JavaScript script, which is compatible with Three.js.
//-----------------------------------------------------------------------------
void SolveSpaceUI::ExportMeshAsThreeJsTo(FILE *f, const std::string &filename, SMesh *sm,
SEdgeList *sel)
void SolveSpaceUI::ExportMeshAsThreeJsTo(FILE *f, const std::string &filename,
SMesh *sm, SEdgeList *sel)
{
SPointList spl = {};
STriangle *tr;
SEdge *e;
Vector bndl, bndh;
const char html[] =
"/* Autogenerated Three.js viewer for Solvespace Model (copy into another document):\n"
const char htmlbegin[] =
"<!DOCTYPE html>\n"
"<html lang=\"en\">\n"
" <head>\n"
@ -674,7 +674,9 @@ void SolveSpaceUI::ExportMeshAsThreeJsTo(FILE *f, const std::string &filename, S
" <title>Three.js Solvespace Mesh</title>\n"
" <script src=\"http://threejs.org/build/three.min.js\"></script>\n"
" <script src=\"http://threejs.org/examples/js/controls/OrthographicTrackballControls.js\"></script>\n"
" <script src=\"%s.js\"></script>\n"
" <style type=\"text/css\">\n"
" body { margin: 0; overflow: hidden; }\n"
" </style>\n"
" </head>\n"
" <body>\n"
" <script>\n"
@ -848,11 +850,13 @@ void SolveSpaceUI::ExportMeshAsThreeJsTo(FILE *f, const std::string &filename, S
" }\n"
" };\n"
"\n"
" document.body.appendChild(solvespace(three_js_%s));\n"
" </script>\n"
" <script>\n";
const char htmlend[] =
" document.body.appendChild(solvespace(solvespace_model_%s));\n"
" </script>\n"
" </body>\n"
"</html>\n"
"*/\n\n";
"</html>\n";
// A default three.js viewer with OrthographicTrackballControls is
// generated as a comment preceding the data.
@ -875,23 +879,27 @@ void SolveSpaceUI::ExportMeshAsThreeJsTo(FILE *f, const std::string &filename, S
double largerBoundXY = max((bndh.x - bndl.x), (bndh.y - bndl.y));
double largerBoundZ = max(largerBoundXY, (bndh.z - bndl.z + 1));
std::string baseFilename = filename;
std::string extension = filename,
noExtFilename = filename;
size_t dot = noExtFilename.rfind('.');
extension.erase(0, dot + 1);
noExtFilename.erase(dot);
std::string baseFilename = noExtFilename;
size_t lastSlash = baseFilename.rfind(PATH_SEP);
if(lastSlash == std::string::npos) oops();
baseFilename.erase(0, lastSlash + 1);
size_t dot = baseFilename.rfind('.');
baseFilename.erase(dot);
for(int i = 0; i < baseFilename.length(); i++) {
if(!isalpha(baseFilename[i]) &&
/* also permit UTF-8 */ !((unsigned char)baseFilename[i] >= 0x80))
baseFilename[i] = '_';
}
fprintf(f, html, baseFilename.c_str(), baseFilename.c_str());
fprintf(f, "var three_js_%s = {\n"
if(extension == "html")
fputs(htmlbegin, f);
fprintf(f, "var solvespace_model_%s = {\n"
" bounds: {\n"
" x: %f, y: %f, near: %f, far: %f, z: %f, edgeBias: %f\n"
" },\n",
@ -974,6 +982,10 @@ void SolveSpaceUI::ExportMeshAsThreeJsTo(FILE *f, const std::string &filename, S
}
fputs(" ]\n};\n", f);
if(extension == "html")
fprintf(f, htmlend, baseFilename.c_str());
spl.Clear();
}

6
src/solvespace.h
View File

@ -188,7 +188,8 @@ int LoadAutosaveYesNo(void);
#define MESH_PATTERN \
PAT1("STL Mesh", "stl") \
PAT1("Wavefront OBJ Mesh", "obj") \
PAT1("Three.js-compatible JavaScript Mesh", "js") \
PAT1("Three.js-compatible Mesh, with viewer", "html") \
PAT1("Three.js-compatible Mesh, mesh only", "js") \
ENDPAT
// NURBS surfaces
#define SRF_PATTERN PAT2("STEP File", "step", "stp") ENDPAT
@ -856,7 +857,8 @@ public:
void ExportMeshTo(const std::string &filename);
void ExportMeshAsStlTo(FILE *f, SMesh *sm);
void ExportMeshAsObjTo(FILE *f, SMesh *sm);
void ExportMeshAsThreeJsTo(FILE *f, const std::string &filename, SMesh *sm, SEdgeList *sel);
void ExportMeshAsThreeJsTo(FILE *f, const std::string &filename,
SMesh *sm, SEdgeList *sel);
void ExportViewOrWireframeTo(const std::string &filename, bool wireframe);
void ExportSectionTo(const std::string &filename);
void ExportWireframeCurves(SEdgeList *sel, SBezierList *sbl,