918 lines
26 KiB
C++
918 lines
26 KiB
C++
#include "solvespace.h"
|
|
#include <png.h>
|
|
|
|
SolveSpace SS;
|
|
|
|
void SolveSpace::Init(char *cmdLine) {
|
|
int i;
|
|
// Default list of colors for the model material
|
|
modelColor[0] = CnfThawDWORD(RGB(150, 150, 150), "ModelColor_0");
|
|
modelColor[1] = CnfThawDWORD(RGB(100, 100, 100), "ModelColor_1");
|
|
modelColor[2] = CnfThawDWORD(RGB( 30, 30, 30), "ModelColor_2");
|
|
modelColor[3] = CnfThawDWORD(RGB(150, 0, 0), "ModelColor_3");
|
|
modelColor[4] = CnfThawDWORD(RGB( 0, 100, 0), "ModelColor_4");
|
|
modelColor[5] = CnfThawDWORD(RGB( 0, 80, 80), "ModelColor_5");
|
|
modelColor[6] = CnfThawDWORD(RGB( 0, 0, 130), "ModelColor_6");
|
|
modelColor[7] = CnfThawDWORD(RGB( 80, 0, 80), "ModelColor_7");
|
|
// Light intensities
|
|
lightIntensity[0] = ((int)CnfThawDWORD( 700, "LightIntensity_0"))/1000.0;
|
|
lightIntensity[1] = ((int)CnfThawDWORD( 400, "LightIntensity_1"))/1000.0;
|
|
// Light positions
|
|
lightDir[0].x = ((int)CnfThawDWORD(-500, "LightDir_0_Right" ))/1000.0;
|
|
lightDir[0].y = ((int)CnfThawDWORD( 500, "LightDir_0_Up" ))/1000.0;
|
|
lightDir[0].z = ((int)CnfThawDWORD( 0, "LightDir_0_Forward" ))/1000.0;
|
|
lightDir[1].x = ((int)CnfThawDWORD( 500, "LightDir_1_Right" ))/1000.0;
|
|
lightDir[1].y = ((int)CnfThawDWORD( 0, "LightDir_1_Up" ))/1000.0;
|
|
lightDir[1].z = ((int)CnfThawDWORD( 0, "LightDir_1_Forward" ))/1000.0;
|
|
// Mesh tolerance
|
|
meshTol = ((int)CnfThawDWORD(1000, "MeshTolerance"))/1000.0;
|
|
// View units
|
|
viewUnits = (Unit)CnfThawDWORD((DWORD)UNIT_MM, "ViewUnits");
|
|
// Camera tangent (determines perspective)
|
|
cameraTangent = ((int)CnfThawDWORD(0, "CameraTangent"))/1e6;
|
|
// Color for edges (drawn as lines for emphasis)
|
|
edgeColor = CnfThawDWORD(RGB(0, 0, 0), "EdgeColor");
|
|
// Recent files menus
|
|
for(i = 0; i < MAX_RECENT; i++) {
|
|
char name[100];
|
|
sprintf(name, "RecentFile_%d", i);
|
|
strcpy(RecentFile[i], "");
|
|
CnfThawString(RecentFile[i], MAX_PATH, name);
|
|
}
|
|
RefreshRecentMenus();
|
|
|
|
// Start with either an empty file, or the file specified on the
|
|
// command line.
|
|
NewFile();
|
|
AfterNewFile();
|
|
if(strlen(cmdLine) != 0) {
|
|
if(LoadFromFile(cmdLine)) {
|
|
strcpy(saveFile, cmdLine);
|
|
} else {
|
|
NewFile();
|
|
}
|
|
}
|
|
AfterNewFile();
|
|
}
|
|
|
|
void SolveSpace::Exit(void) {
|
|
int i;
|
|
char name[100];
|
|
// Recent files
|
|
for(i = 0; i < MAX_RECENT; i++) {
|
|
sprintf(name, "RecentFile_%d", i);
|
|
CnfFreezeString(RecentFile[i], name);
|
|
}
|
|
// Model colors
|
|
for(i = 0; i < MODEL_COLORS; i++) {
|
|
sprintf(name, "ModelColor_%d", i);
|
|
CnfFreezeDWORD(modelColor[i], name);
|
|
}
|
|
// Light intensities
|
|
CnfFreezeDWORD((int)(lightIntensity[0]*1000), "LightIntensity_0");
|
|
CnfFreezeDWORD((int)(lightIntensity[1]*1000), "LightIntensity_1");
|
|
// Light directions
|
|
CnfFreezeDWORD((int)(lightDir[0].x*1000), "LightDir_0_Right");
|
|
CnfFreezeDWORD((int)(lightDir[0].y*1000), "LightDir_0_Up");
|
|
CnfFreezeDWORD((int)(lightDir[0].z*1000), "LightDir_0_Forward");
|
|
CnfFreezeDWORD((int)(lightDir[1].x*1000), "LightDir_1_Right");
|
|
CnfFreezeDWORD((int)(lightDir[1].y*1000), "LightDir_1_Up");
|
|
CnfFreezeDWORD((int)(lightDir[1].z*1000), "LightDir_1_Forward");
|
|
// Mesh tolerance
|
|
CnfFreezeDWORD((int)(meshTol*1000), "MeshTolerance");
|
|
// Display/entry units
|
|
CnfFreezeDWORD((int)viewUnits, "ViewUnits");
|
|
// Camera tangent (determines perspective)
|
|
CnfFreezeDWORD((int)(cameraTangent*1e6), "CameraTangent");
|
|
// Color for edges (drawn as lines for emphasis)
|
|
CnfFreezeDWORD(edgeColor, "EdgeColor");
|
|
ExitNow();
|
|
}
|
|
|
|
void SolveSpace::DoLater(void) {
|
|
if(later.generateAll) GenerateAll();
|
|
if(later.showTW) TW.Show();
|
|
ZERO(&later);
|
|
}
|
|
|
|
int SolveSpace::CircleSides(double r) {
|
|
int s = 7 + (int)(sqrt(r*SS.GW.scale/meshTol));
|
|
return min(s, 40);
|
|
}
|
|
|
|
char *SolveSpace::MmToString(double v) {
|
|
static int WhichBuf;
|
|
static char Bufs[8][128];
|
|
|
|
WhichBuf++;
|
|
if(WhichBuf >= 8 || WhichBuf < 0) WhichBuf = 0;
|
|
|
|
char *s = Bufs[WhichBuf];
|
|
if(viewUnits == UNIT_INCHES) {
|
|
sprintf(s, "%.3f", v/25.4);
|
|
} else {
|
|
sprintf(s, "%.2f", v);
|
|
}
|
|
return s;
|
|
}
|
|
double SolveSpace::ExprToMm(Expr *e) {
|
|
if(viewUnits == UNIT_INCHES) {
|
|
return (e->Eval())*25.4;
|
|
} else {
|
|
return e->Eval();
|
|
}
|
|
}
|
|
|
|
|
|
void SolveSpace::AfterNewFile(void) {
|
|
ReloadAllImported();
|
|
GenerateAll(-1, -1);
|
|
|
|
TW.Init();
|
|
GW.Init();
|
|
|
|
unsaved = false;
|
|
|
|
int w, h;
|
|
GetGraphicsWindowSize(&w, &h);
|
|
GW.width = w;
|
|
GW.height = h;
|
|
|
|
// The triangles haven't been generated yet, but zoom to fit the entities
|
|
// roughly in the window, since that sets the mesh tolerance.
|
|
GW.ZoomToFit();
|
|
|
|
GenerateAll(0, INT_MAX);
|
|
later.showTW = true;
|
|
// Then zoom to fit again, to fit the triangles
|
|
GW.ZoomToFit();
|
|
}
|
|
|
|
void SolveSpace::MarkGroupDirtyByEntity(hEntity he) {
|
|
Entity *e = SS.GetEntity(he);
|
|
MarkGroupDirty(e->group);
|
|
}
|
|
|
|
void SolveSpace::MarkGroupDirty(hGroup hg) {
|
|
int i;
|
|
bool go = false;
|
|
for(i = 0; i < group.n; i++) {
|
|
Group *g = &(group.elem[i]);
|
|
if(g->h.v == hg.v) {
|
|
go = true;
|
|
}
|
|
if(go) {
|
|
g->clean = false;
|
|
}
|
|
}
|
|
unsaved = true;
|
|
}
|
|
|
|
bool SolveSpace::PruneOrphans(void) {
|
|
int i;
|
|
for(i = 0; i < request.n; i++) {
|
|
Request *r = &(request.elem[i]);
|
|
if(GroupExists(r->group)) continue;
|
|
|
|
(deleted.requests)++;
|
|
request.RemoveById(r->h);
|
|
return true;
|
|
}
|
|
|
|
for(i = 0; i < constraint.n; i++) {
|
|
Constraint *c = &(constraint.elem[i]);
|
|
if(GroupExists(c->group)) continue;
|
|
|
|
(deleted.constraints)++;
|
|
constraint.RemoveById(c->h);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool SolveSpace::GroupsInOrder(hGroup before, hGroup after) {
|
|
if(before.v == 0) return true;
|
|
if(after.v == 0) return true;
|
|
|
|
int beforep = -1, afterp = -1;
|
|
int i;
|
|
for(i = 0; i < group.n; i++) {
|
|
Group *g = &(group.elem[i]);
|
|
if(g->h.v == before.v) beforep = i;
|
|
if(g->h.v == after.v) afterp = i;
|
|
}
|
|
if(beforep < 0 || afterp < 0) return false;
|
|
if(beforep >= afterp) return false;
|
|
return true;
|
|
}
|
|
|
|
bool SolveSpace::GroupExists(hGroup hg) {
|
|
// A nonexistent group is not acceptable
|
|
return group.FindByIdNoOops(hg) ? true : false;
|
|
}
|
|
bool SolveSpace::EntityExists(hEntity he) {
|
|
// A nonexstient entity is acceptable, though, usually just means it
|
|
// doesn't apply.
|
|
if(he.v == Entity::NO_ENTITY.v) return true;
|
|
return entity.FindByIdNoOops(he) ? true : false;
|
|
}
|
|
|
|
bool SolveSpace::PruneGroups(hGroup hg) {
|
|
Group *g = GetGroup(hg);
|
|
if(GroupsInOrder(g->opA, hg) &&
|
|
EntityExists(g->predef.origin) &&
|
|
EntityExists(g->predef.entityB) &&
|
|
EntityExists(g->predef.entityC))
|
|
{
|
|
return false;
|
|
}
|
|
(deleted.groups)++;
|
|
group.RemoveById(g->h);
|
|
return true;
|
|
}
|
|
|
|
bool SolveSpace::PruneRequests(hGroup hg) {
|
|
int i;
|
|
for(i = 0; i < entity.n; i++) {
|
|
Entity *e = &(entity.elem[i]);
|
|
if(e->group.v != hg.v) continue;
|
|
|
|
if(EntityExists(e->workplane)) continue;
|
|
|
|
if(!e->h.isFromRequest()) oops();
|
|
|
|
(deleted.requests)++;
|
|
request.RemoveById(e->h.request());
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool SolveSpace::PruneConstraints(hGroup hg) {
|
|
int i;
|
|
for(i = 0; i < constraint.n; i++) {
|
|
Constraint *c = &(constraint.elem[i]);
|
|
if(c->group.v != hg.v) continue;
|
|
|
|
if(EntityExists(c->workplane) &&
|
|
EntityExists(c->ptA) &&
|
|
EntityExists(c->ptB) &&
|
|
EntityExists(c->ptC) &&
|
|
EntityExists(c->entityA) &&
|
|
EntityExists(c->entityB))
|
|
{
|
|
continue;
|
|
}
|
|
|
|
(deleted.constraints)++;
|
|
constraint.RemoveById(c->h);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void SolveSpace::GenerateAll(void) {
|
|
int i;
|
|
int firstDirty = INT_MAX, lastVisible = 0;
|
|
// Start from the first dirty group, and solve until the active group,
|
|
// since all groups after the active group are hidden.
|
|
for(i = 0; i < group.n; i++) {
|
|
Group *g = &(group.elem[i]);
|
|
if((!g->clean) || (g->solved.how != Group::SOLVED_OKAY)) {
|
|
firstDirty = min(firstDirty, i);
|
|
}
|
|
if(g->h.v == SS.GW.activeGroup.v) {
|
|
lastVisible = i;
|
|
}
|
|
}
|
|
if(firstDirty == INT_MAX || lastVisible == 0) {
|
|
// All clean; so just regenerate the entities, and don't solve anything.
|
|
GenerateAll(-1, -1);
|
|
} else {
|
|
GenerateAll(firstDirty, lastVisible);
|
|
}
|
|
}
|
|
|
|
void SolveSpace::GenerateAll(int first, int last) {
|
|
int i, j;
|
|
|
|
while(PruneOrphans())
|
|
;
|
|
|
|
// Don't lose our numerical guesses when we regenerate.
|
|
IdList<Param,hParam> prev;
|
|
param.MoveSelfInto(&prev);
|
|
entity.Clear();
|
|
|
|
for(i = 0; i < group.n; i++) {
|
|
Group *g = &(group.elem[i]);
|
|
|
|
// The group may depend on entities or other groups, to define its
|
|
// workplane geometry or for its operands. Those must already exist
|
|
// in a previous group, so check them before generating.
|
|
if(PruneGroups(g->h))
|
|
goto pruned;
|
|
|
|
for(j = 0; j < request.n; j++) {
|
|
Request *r = &(request.elem[j]);
|
|
if(r->group.v != g->h.v) continue;
|
|
|
|
r->Generate(&entity, ¶m);
|
|
}
|
|
g->Generate(&entity, ¶m);
|
|
|
|
// The requests and constraints depend on stuff in this or the
|
|
// previous group, so check them after generating.
|
|
if(PruneRequests(g->h) || PruneConstraints(g->h))
|
|
goto pruned;
|
|
|
|
// Use the previous values for params that we've seen before, as
|
|
// initial guesses for the solver.
|
|
for(j = 0; j < param.n; j++) {
|
|
Param *newp = &(param.elem[j]);
|
|
if(newp->known) continue;
|
|
|
|
Param *prevp = prev.FindByIdNoOops(newp->h);
|
|
if(prevp) newp->val = prevp->val;
|
|
}
|
|
|
|
if(g->h.v == Group::HGROUP_REFERENCES.v) {
|
|
ForceReferences();
|
|
g->solved.how = Group::SOLVED_OKAY;
|
|
g->clean = true;
|
|
} else {
|
|
if(i >= first && i <= last) {
|
|
// The group falls inside the range, so really solve it,
|
|
// and then regenerate the mesh based on the solved stuff.
|
|
SolveGroup(g->h);
|
|
g->GeneratePolygon();
|
|
g->GenerateMesh();
|
|
g->clean = true;
|
|
} else {
|
|
// The group falls outside the range, so just assume that
|
|
// it's good wherever we left it. The mesh is unchanged,
|
|
// and the parameters must be marked as known.
|
|
for(j = 0; j < param.n; j++) {
|
|
Param *newp = &(param.elem[j]);
|
|
|
|
Param *prevp = prev.FindByIdNoOops(newp->h);
|
|
if(prevp) newp->known = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// And update any reference dimensions with their new values
|
|
for(i = 0; i < constraint.n; i++) {
|
|
Constraint *c = &(constraint.elem[i]);
|
|
if(c->reference) {
|
|
c->ModifyToSatisfy();
|
|
}
|
|
}
|
|
|
|
prev.Clear();
|
|
InvalidateGraphics();
|
|
|
|
// Remove nonexistent selection items, for same reason we waited till
|
|
// the end to put up a dialog box.
|
|
GW.ClearNonexistentSelectionItems();
|
|
|
|
if(deleted.requests > 0 || deleted.constraints > 0 || deleted.groups > 0) {
|
|
// All sorts of interesting things could have happened; for example,
|
|
// the active group or active workplane could have been deleted. So
|
|
// clear all that out.
|
|
if(deleted.groups > 0) {
|
|
SS.TW.ClearSuper();
|
|
}
|
|
later.showTW = true;
|
|
GW.ClearSuper();
|
|
// Don't display any errors until we've regenerated fully. The
|
|
// sketch is not necessarily in a consistent state until we've
|
|
// pruned any orphaned etc. objects, and the message loop for the
|
|
// messagebox could allow us to repaint and crash. But now we must
|
|
// be fine.
|
|
Error("Additional sketch elements were deleted, because they depend "
|
|
"on the element that was just deleted explicitly. These "
|
|
"include: \r\n"
|
|
" %d request%s\r\n"
|
|
" %d constraint%s\r\n"
|
|
" %d group%s\r\n\r\n"
|
|
"Choose Edit -> Undo to undelete all elements.",
|
|
deleted.requests, deleted.requests == 1 ? "" : "s",
|
|
deleted.constraints, deleted.constraints == 1 ? "" : "s",
|
|
deleted.groups, deleted.groups == 1 ? "" : "s");
|
|
memset(&deleted, 0, sizeof(deleted));
|
|
}
|
|
|
|
FreeAllTemporary();
|
|
allConsistent = true;
|
|
return;
|
|
|
|
pruned:
|
|
// Restore the numerical guesses
|
|
param.Clear();
|
|
prev.MoveSelfInto(¶m);
|
|
// Try again
|
|
GenerateAll(first, last);
|
|
}
|
|
|
|
void SolveSpace::ForceReferences(void) {
|
|
// Force the values of the paramters that define the three reference
|
|
// coordinate systems.
|
|
static const struct {
|
|
hRequest hr;
|
|
Quaternion q;
|
|
} Quat[] = {
|
|
{ Request::HREQUEST_REFERENCE_XY, { 1, 0, 0, 0, } },
|
|
{ Request::HREQUEST_REFERENCE_YZ, { 0.5, 0.5, 0.5, 0.5, } },
|
|
{ Request::HREQUEST_REFERENCE_ZX, { 0.5, -0.5, -0.5, -0.5, } },
|
|
};
|
|
for(int i = 0; i < 3; i++) {
|
|
hRequest hr = Quat[i].hr;
|
|
Entity *wrkpl = GetEntity(hr.entity(0));
|
|
// The origin for our coordinate system, always zero
|
|
Entity *origin = GetEntity(wrkpl->point[0]);
|
|
origin->PointForceTo(Vector::From(0, 0, 0));
|
|
GetParam(origin->param[0])->known = true;
|
|
GetParam(origin->param[1])->known = true;
|
|
GetParam(origin->param[2])->known = true;
|
|
// The quaternion that defines the rotation, from the table.
|
|
Entity *normal = GetEntity(wrkpl->normal);
|
|
normal->NormalForceTo(Quat[i].q);
|
|
GetParam(normal->param[0])->known = true;
|
|
GetParam(normal->param[1])->known = true;
|
|
GetParam(normal->param[2])->known = true;
|
|
GetParam(normal->param[3])->known = true;
|
|
}
|
|
}
|
|
|
|
void SolveSpace::SolveGroup(hGroup hg) {
|
|
int i;
|
|
// Clear out the system to be solved.
|
|
sys.entity.Clear();
|
|
sys.param.Clear();
|
|
sys.eq.Clear();
|
|
// And generate all the params for requests in this group
|
|
for(i = 0; i < request.n; i++) {
|
|
Request *r = &(request.elem[i]);
|
|
if(r->group.v != hg.v) continue;
|
|
|
|
r->Generate(&(sys.entity), &(sys.param));
|
|
}
|
|
// And for the group itself
|
|
Group *g = SS.GetGroup(hg);
|
|
g->Generate(&(sys.entity), &(sys.param));
|
|
// Set the initial guesses for all the params
|
|
for(i = 0; i < sys.param.n; i++) {
|
|
Param *p = &(sys.param.elem[i]);
|
|
p->known = false;
|
|
p->val = GetParam(p->h)->val;
|
|
}
|
|
|
|
sys.Solve(g);
|
|
FreeAllTemporary();
|
|
}
|
|
|
|
void SolveSpace::ExportDxfTo(char *filename) {
|
|
SPolygon *sp;
|
|
SPolygon spa;
|
|
ZERO(&spa);
|
|
|
|
Vector gn = (SS.GW.projRight).Cross(SS.GW.projUp);
|
|
gn = gn.WithMagnitude(1);
|
|
|
|
SS.GW.GroupSelection();
|
|
#define gs (SS.GW.gs)
|
|
|
|
Group *g = SS.GetGroup(SS.GW.activeGroup);
|
|
|
|
// The plane in which the exported section lies; need this because we'll
|
|
// reorient from that plane into the xy plane before exporting.
|
|
Vector p, u, v, n;
|
|
double d;
|
|
|
|
if(gs.n == 0 && !(g->poly.IsEmpty())) {
|
|
// Easiest case--export the polygon drawn in this group
|
|
sp = &(g->poly);
|
|
p = sp->AnyPoint();
|
|
n = (sp->ComputeNormal()).WithMagnitude(1);
|
|
if(n.Dot(gn) < 0) n = n.ScaledBy(-1);
|
|
u = n.Normal(0);
|
|
v = n.Normal(1);
|
|
d = p.Dot(n);
|
|
goto havepoly;
|
|
}
|
|
|
|
if(g->runningMesh.l.n > 0 &&
|
|
((gs.n == 0 && g->activeWorkplane.v != Entity::FREE_IN_3D.v) ||
|
|
(gs.n == 1 && gs.faces == 1) ||
|
|
(gs.n == 3 && gs.vectors == 2 && gs.points == 1)))
|
|
{
|
|
if(gs.n == 0) {
|
|
Entity *wrkpl = SS.GetEntity(g->activeWorkplane);
|
|
p = wrkpl->WorkplaneGetOffset();
|
|
n = wrkpl->Normal()->NormalN();
|
|
u = wrkpl->Normal()->NormalU();
|
|
v = wrkpl->Normal()->NormalV();
|
|
} else if(gs.n == 1) {
|
|
Entity *face = SS.GetEntity(gs.entity[0]);
|
|
p = face->FaceGetPointNum();
|
|
n = face->FaceGetNormalNum();
|
|
if(n.Dot(gn) < 0) n = n.ScaledBy(-1);
|
|
u = n.Normal(0);
|
|
v = n.Normal(1);
|
|
} else if(gs.n == 3) {
|
|
Vector ut = SS.GetEntity(gs.entity[0])->VectorGetNum(),
|
|
vt = SS.GetEntity(gs.entity[1])->VectorGetNum();
|
|
ut = ut.WithMagnitude(1);
|
|
vt = vt.WithMagnitude(1);
|
|
|
|
if(fabs(SS.GW.projUp.Dot(vt)) < fabs(SS.GW.projUp.Dot(ut))) {
|
|
SWAP(Vector, ut, vt);
|
|
}
|
|
if(SS.GW.projRight.Dot(ut) < 0) ut = ut.ScaledBy(-1);
|
|
if(SS.GW.projUp. Dot(vt) < 0) vt = vt.ScaledBy(-1);
|
|
|
|
p = SS.GetEntity(gs.point[0])->PointGetNum();
|
|
n = ut.Cross(vt);
|
|
u = ut.WithMagnitude(1);
|
|
v = (n.Cross(u)).WithMagnitude(1);
|
|
} else oops();
|
|
n = n.WithMagnitude(1);
|
|
d = p.Dot(n);
|
|
|
|
SMesh m;
|
|
ZERO(&m);
|
|
m.MakeFromCopy(&(g->runningMesh));
|
|
|
|
m.l.ClearTags();
|
|
int i;
|
|
for(i = 0; i < m.l.n; i++) {
|
|
STriangle *tr = &(m.l.elem[i]);
|
|
|
|
if((fabs(n.Dot(tr->a) - d) >= LENGTH_EPS) ||
|
|
(fabs(n.Dot(tr->b) - d) >= LENGTH_EPS) ||
|
|
(fabs(n.Dot(tr->c) - d) >= LENGTH_EPS))
|
|
{
|
|
tr->tag = 1;
|
|
}
|
|
}
|
|
m.l.RemoveTagged();
|
|
|
|
SKdNode *root = SKdNode::From(&m);
|
|
root->SnapToMesh(&m);
|
|
|
|
SEdgeList el;
|
|
ZERO(&el);
|
|
root->MakeCertainEdgesInto(&el, false);
|
|
el.AssemblePolygon(&spa, NULL);
|
|
sp = &spa;
|
|
|
|
el.Clear();
|
|
m.Clear();
|
|
|
|
SS.GW.ClearSelection();
|
|
goto havepoly;
|
|
}
|
|
|
|
Error("Geometry to export not specified.");
|
|
return;
|
|
|
|
havepoly:
|
|
|
|
FILE *f = fopen(filename, "wb");
|
|
if(!f) {
|
|
Error("Couldn't write to '%s'", filename);
|
|
spa.Clear();
|
|
return;
|
|
}
|
|
|
|
// Some software, like Adobe Illustrator, insists on a header.
|
|
fprintf(f,
|
|
" 999\n"
|
|
"file created by SolveSpace\n"
|
|
" 0\n"
|
|
"SECTION\n"
|
|
" 2\n"
|
|
"HEADER\n"
|
|
" 9\n"
|
|
"$ACADVER\n"
|
|
" 1\n"
|
|
"AC1006\n"
|
|
" 9\n"
|
|
"$INSBASE\n"
|
|
" 10\n"
|
|
"0.0\n"
|
|
" 20\n"
|
|
"0.0\n"
|
|
" 30\n"
|
|
"0.0\n"
|
|
" 9\n"
|
|
"$EXTMIN\n"
|
|
" 10\n"
|
|
"0.0\n"
|
|
" 20\n"
|
|
"0.0\n"
|
|
" 9\n"
|
|
"$EXTMAX\n"
|
|
" 10\n"
|
|
"10000.0\n"
|
|
" 20\n"
|
|
"10000.0\n"
|
|
" 0\n"
|
|
"ENDSEC\n");
|
|
|
|
// Now begin the entities, which are just line segments reproduced from
|
|
// our piecewise linear curves.
|
|
fprintf(f,
|
|
" 0\n"
|
|
"SECTION\n"
|
|
" 2\n"
|
|
"ENTITIES\n");
|
|
|
|
int i, j;
|
|
for(i = 0; i < sp->l.n; i++) {
|
|
SContour *sc = &(sp->l.elem[i]);
|
|
|
|
for(j = 1; j < sc->l.n; j++) {
|
|
Vector p0 = sc->l.elem[j-1].p,
|
|
p1 = sc->l.elem[j].p;
|
|
|
|
Point2d e0 = p0.Project2d(u, v),
|
|
e1 = p1.Project2d(u, v);
|
|
|
|
fprintf(f,
|
|
" 0\n"
|
|
"LINE\n"
|
|
" 8\n" // Layer code
|
|
"%d\n"
|
|
" 10\n" // xA
|
|
"%.6f\n"
|
|
" 20\n" // yA
|
|
"%.6f\n"
|
|
" 30\n" // zA
|
|
"%.6f\n"
|
|
" 11\n" // xB
|
|
"%.6f\n"
|
|
" 21\n" // yB
|
|
"%.6f\n"
|
|
" 31\n" // zB
|
|
"%.6f\n",
|
|
0,
|
|
e0.x, e0.y, 0.0,
|
|
e1.x, e1.y, 0.0);
|
|
}
|
|
}
|
|
|
|
fprintf(f,
|
|
" 0\n"
|
|
"ENDSEC\n"
|
|
" 0\n"
|
|
"EOF\n" );
|
|
|
|
spa.Clear();
|
|
fclose(f);
|
|
}
|
|
|
|
void SolveSpace::ExportMeshTo(char *filename) {
|
|
SMesh *m = &(SS.GetGroup(SS.GW.activeGroup)->runningMesh);
|
|
if(m->l.n == 0) {
|
|
Error("Active group mesh is empty; nothing to export.");
|
|
return;
|
|
}
|
|
SKdNode *root = SKdNode::From(m);
|
|
root->SnapToMesh(m);
|
|
SMesh vvm;
|
|
ZERO(&vvm);
|
|
root->MakeMeshInto(&vvm);
|
|
|
|
FILE *f = fopen(filename, "wb");
|
|
if(!f) {
|
|
Error("Couldn't write to '%s'", filename);
|
|
vvm.Clear();
|
|
return;
|
|
}
|
|
char str[80];
|
|
memset(str, 0, sizeof(str));
|
|
strcpy(str, "STL exported mesh");
|
|
fwrite(str, 1, 80, f);
|
|
|
|
DWORD n = vvm.l.n;
|
|
fwrite(&n, 4, 1, f);
|
|
|
|
int i;
|
|
for(i = 0; i < vvm.l.n; i++) {
|
|
STriangle *tr = &(vvm.l.elem[i]);
|
|
Vector n = tr->Normal().WithMagnitude(1);
|
|
float w;
|
|
w = (float)n.x; fwrite(&w, 4, 1, f);
|
|
w = (float)n.y; fwrite(&w, 4, 1, f);
|
|
w = (float)n.z; fwrite(&w, 4, 1, f);
|
|
w = (float)tr->a.x; fwrite(&w, 4, 1, f);
|
|
w = (float)tr->a.y; fwrite(&w, 4, 1, f);
|
|
w = (float)tr->a.z; fwrite(&w, 4, 1, f);
|
|
w = (float)tr->b.x; fwrite(&w, 4, 1, f);
|
|
w = (float)tr->b.y; fwrite(&w, 4, 1, f);
|
|
w = (float)tr->b.z; fwrite(&w, 4, 1, f);
|
|
w = (float)tr->c.x; fwrite(&w, 4, 1, f);
|
|
w = (float)tr->c.y; fwrite(&w, 4, 1, f);
|
|
w = (float)tr->c.z; fwrite(&w, 4, 1, f);
|
|
fputc(0, f);
|
|
fputc(0, f);
|
|
}
|
|
|
|
vvm.Clear();
|
|
fclose(f);
|
|
}
|
|
|
|
void SolveSpace::ExportAsPngTo(char *filename) {
|
|
int w = (int)SS.GW.width, h = (int)SS.GW.height;
|
|
// No guarantee that the back buffer contains anything valid right now,
|
|
// so repaint the scene.
|
|
SS.GW.Paint(w, h);
|
|
|
|
FILE *f = fopen(filename, "wb");
|
|
if(!f) goto err;
|
|
|
|
png_struct *png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING,
|
|
NULL, NULL, NULL);
|
|
if(!png_ptr) goto err;
|
|
|
|
png_info *info_ptr = png_create_info_struct(png_ptr);
|
|
if(!png_ptr) goto err;
|
|
|
|
if(setjmp(png_jmpbuf(png_ptr))) goto err;
|
|
|
|
png_init_io(png_ptr, f);
|
|
|
|
// glReadPixels wants to align things on 4-boundaries, and there's 3
|
|
// bytes per pixel. As long as the row width is divisible by 4, all
|
|
// works out.
|
|
w &= ~3; h &= ~3;
|
|
|
|
png_set_IHDR(png_ptr, info_ptr, w, h,
|
|
8, PNG_COLOR_TYPE_RGB, PNG_INTERLACE_NONE,
|
|
PNG_COMPRESSION_TYPE_DEFAULT,PNG_FILTER_TYPE_DEFAULT);
|
|
|
|
png_write_info(png_ptr, info_ptr);
|
|
|
|
// Get the pixel data from the framebuffer
|
|
BYTE *pixels = (BYTE *)AllocTemporary(3*w*h);
|
|
BYTE **rowptrs = (BYTE **)AllocTemporary(h*sizeof(BYTE *));
|
|
glReadPixels(0, 0, w, h, GL_RGB, GL_UNSIGNED_BYTE, pixels);
|
|
|
|
int y;
|
|
for(y = 0; y < h; y++) {
|
|
// gl puts the origin at lower left, but png puts it top left
|
|
rowptrs[y] = pixels + ((h - 1) - y)*(3*w);
|
|
}
|
|
png_write_image(png_ptr, rowptrs);
|
|
|
|
png_write_end(png_ptr, info_ptr);
|
|
png_destroy_write_struct(&png_ptr, &info_ptr);
|
|
return;
|
|
|
|
err:
|
|
Error("Error writing PNG file '%s'", filename);
|
|
if(f) fclose(f);
|
|
return;
|
|
}
|
|
|
|
void SolveSpace::RemoveFromRecentList(char *file) {
|
|
int src, dest;
|
|
dest = 0;
|
|
for(src = 0; src < MAX_RECENT; src++) {
|
|
if(strcmp(file, RecentFile[src]) != 0) {
|
|
if(src != dest) strcpy(RecentFile[dest], RecentFile[src]);
|
|
dest++;
|
|
}
|
|
}
|
|
while(dest < MAX_RECENT) strcpy(RecentFile[dest++], "");
|
|
RefreshRecentMenus();
|
|
}
|
|
void SolveSpace::AddToRecentList(char *file) {
|
|
RemoveFromRecentList(file);
|
|
|
|
int src;
|
|
for(src = MAX_RECENT - 2; src >= 0; src--) {
|
|
strcpy(RecentFile[src+1], RecentFile[src]);
|
|
}
|
|
strcpy(RecentFile[0], file);
|
|
RefreshRecentMenus();
|
|
}
|
|
|
|
bool SolveSpace::GetFilenameAndSave(bool saveAs) {
|
|
char newFile[MAX_PATH];
|
|
strcpy(newFile, saveFile);
|
|
if(saveAs || strlen(newFile)==0) {
|
|
if(!GetSaveFile(newFile, SLVS_EXT, SLVS_PATTERN)) return false;
|
|
}
|
|
|
|
if(SaveToFile(newFile)) {
|
|
AddToRecentList(newFile);
|
|
strcpy(saveFile, newFile);
|
|
unsaved = false;
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
bool SolveSpace::OkayToStartNewFile(void) {
|
|
if(!unsaved) return true;
|
|
|
|
switch(SaveFileYesNoCancel()) {
|
|
case IDYES:
|
|
return GetFilenameAndSave(false);
|
|
|
|
case IDNO:
|
|
return true;
|
|
|
|
case IDCANCEL:
|
|
return false;
|
|
|
|
default: oops();
|
|
}
|
|
}
|
|
|
|
void SolveSpace::MenuFile(int id) {
|
|
|
|
if(id >= RECENT_OPEN && id < (RECENT_OPEN+MAX_RECENT)) {
|
|
char newFile[MAX_PATH];
|
|
strcpy(newFile, RecentFile[id-RECENT_OPEN]);
|
|
RemoveFromRecentList(newFile);
|
|
if(SS.LoadFromFile(newFile)) {
|
|
strcpy(SS.saveFile, newFile);
|
|
AddToRecentList(newFile);
|
|
} else {
|
|
strcpy(SS.saveFile, "");
|
|
SS.NewFile();
|
|
}
|
|
SS.AfterNewFile();
|
|
return;
|
|
}
|
|
|
|
switch(id) {
|
|
case GraphicsWindow::MNU_NEW:
|
|
if(!SS.OkayToStartNewFile()) break;
|
|
|
|
strcpy(SS.saveFile, "");
|
|
SS.NewFile();
|
|
SS.AfterNewFile();
|
|
break;
|
|
|
|
case GraphicsWindow::MNU_OPEN: {
|
|
if(!SS.OkayToStartNewFile()) break;
|
|
|
|
char newFile[MAX_PATH] = "";
|
|
if(GetOpenFile(newFile, SLVS_EXT, SLVS_PATTERN)) {
|
|
if(SS.LoadFromFile(newFile)) {
|
|
strcpy(SS.saveFile, newFile);
|
|
AddToRecentList(newFile);
|
|
} else {
|
|
strcpy(SS.saveFile, "");
|
|
SS.NewFile();
|
|
}
|
|
SS.AfterNewFile();
|
|
}
|
|
break;
|
|
}
|
|
|
|
case GraphicsWindow::MNU_SAVE:
|
|
SS.GetFilenameAndSave(false);
|
|
break;
|
|
|
|
case GraphicsWindow::MNU_SAVE_AS:
|
|
SS.GetFilenameAndSave(true);
|
|
break;
|
|
|
|
case GraphicsWindow::MNU_EXPORT_PNG: {
|
|
char exportFile[MAX_PATH] = "";
|
|
if(!GetSaveFile(exportFile, PNG_EXT, PNG_PATTERN)) break;
|
|
SS.ExportAsPngTo(exportFile);
|
|
break;
|
|
}
|
|
|
|
case GraphicsWindow::MNU_EXPORT_DXF: {
|
|
char exportFile[MAX_PATH] = "";
|
|
if(!GetSaveFile(exportFile, DXF_EXT, DXF_PATTERN)) break;
|
|
SS.ExportDxfTo(exportFile);
|
|
break;
|
|
}
|
|
|
|
case GraphicsWindow::MNU_EXPORT_MESH: {
|
|
char exportFile[MAX_PATH] = "";
|
|
if(!GetSaveFile(exportFile, STL_EXT, STL_PATTERN)) break;
|
|
SS.ExportMeshTo(exportFile);
|
|
break;
|
|
}
|
|
|
|
case GraphicsWindow::MNU_EXIT:
|
|
if(!SS.OkayToStartNewFile()) break;
|
|
SS.Exit();
|
|
break;
|
|
|
|
default: oops();
|
|
}
|
|
}
|