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1bc73c4a75
solvespace/src/group.cpp
Daniel Richard G 1bc73c4a75 Renamed the RGB() macro to RGBi() to avoid collisions with Microsoft 
Microsoft defines an RGB() macro that at one point was compatible with our
version (returning a packed integer containing 8-bit red, green and blue
channels), but is no longer, and the incompatibility led to an awkward
situation in w32main.cpp where we had to restore Microsoft's form of the
macro in order for the commctrl.h header to compile. By renaming the macro
to RGBi()---analogous to the RGBf() macro we already define---we avoid the
hassle entirely.
2013-12-02 04:27:34 -05:00

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//-----------------------------------------------------------------------------
// Implementation of the Group class, which represents a set of entities and
// constraints that are solved together, in some cases followed by another
// operation, like to extrude surfaces from the entities or to step and
// repeat them parametrically.
//
// Copyright 2008-2013 Jonathan Westhues.
//-----------------------------------------------------------------------------
#include "solvespace.h"
const hParam Param::NO_PARAM = { 0 };
#define NO_PARAM (Param::NO_PARAM)
const hGroup Group::HGROUP_REFERENCES = { 1 };
#define gs (SS.GW.gs)
//-----------------------------------------------------------------------------
// The group structure includes pointers to other dynamically-allocated
// memory. This clears and frees them all.
//-----------------------------------------------------------------------------
void Group::Clear(void) {
polyLoops.Clear();
bezierLoops.Clear();
bezierOpens.Clear();
thisMesh.Clear();
runningMesh.Clear();
thisShell.Clear();
runningShell.Clear();
displayMesh.Clear();
displayEdges.Clear();
impMesh.Clear();
impShell.Clear();
impEntity.Clear();
// remap is the only one that doesn't get recreated when we regen
remap.Clear();
}
void Group::AddParam(IdList<Param,hParam> *param, hParam hp, double v) {
Param pa;
memset(&pa, 0, sizeof(pa));
pa.h = hp;
pa.val = v;
param->Add(&pa);
}
bool Group::IsVisible(void) {
if(!visible) return false;
if(SS.GroupsInOrder(SS.GW.activeGroup, h)) return false;
return true;
}
void Group::MenuGroup(int id) {
Group g;
ZERO(&g);
g.visible = true;
g.color = RGBi(100, 100, 100);
g.scale = 1;
if(id >= RECENT_IMPORT && id < (RECENT_IMPORT + MAX_RECENT)) {
strcpy(g.impFile, RecentFile[id-RECENT_IMPORT]);
id = GraphicsWindow::MNU_GROUP_IMPORT;
}
SS.GW.GroupSelection();
switch(id) {
case GraphicsWindow::MNU_GROUP_3D:
g.type = DRAWING_3D;
g.name.strcpy("sketch-in-3d");
break;
case GraphicsWindow::MNU_GROUP_WRKPL:
g.type = DRAWING_WORKPLANE;
g.name.strcpy("sketch-in-plane");
if(gs.points == 1 && gs.n == 1) {
g.subtype = WORKPLANE_BY_POINT_ORTHO;
Vector u = SS.GW.projRight, v = SS.GW.projUp;
u = u.ClosestOrtho();
v = v.Minus(u.ScaledBy(v.Dot(u)));
v = v.ClosestOrtho();
g.predef.q = Quaternion::From(u, v);
g.predef.origin = gs.point[0];
} else if(gs.points == 1 && gs.lineSegments == 2 && gs.n == 3) {
g.subtype = WORKPLANE_BY_LINE_SEGMENTS;
g.predef.origin = gs.point[0];
g.predef.entityB = gs.entity[0];
g.predef.entityC = gs.entity[1];
Vector ut = SK.GetEntity(g.predef.entityB)->VectorGetNum();
Vector vt = SK.GetEntity(g.predef.entityC)->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);
g.predef.swapUV = true;
}
if(SS.GW.projRight.Dot(ut) < 0) g.predef.negateU = true;
if(SS.GW.projUp. Dot(vt) < 0) g.predef.negateV = true;
} else {
Error("Bad selection for new sketch in workplane. This "
"group can be created with:\n\n"
" * a point (orthogonal to coordinate axes, "
"through the point)\n"
" * a point and two line segments (parallel to the "
"lines, through the point)\n");
return;
}
break;
case GraphicsWindow::MNU_GROUP_EXTRUDE:
if(!SS.GW.LockedInWorkplane()) {
Error("Select a workplane (Sketch -> In Workplane) before "
"extruding. The sketch will be extruded normal to the "
"workplane.");
return;
}
g.type = EXTRUDE;
g.opA = SS.GW.activeGroup;
g.predef.entityB = SS.GW.ActiveWorkplane();
g.subtype = ONE_SIDED;
g.name.strcpy("extrude");
break;
case GraphicsWindow::MNU_GROUP_LATHE:
if(gs.points == 1 && gs.vectors == 1 && gs.n == 2) {
g.predef.origin = gs.point[0];
g.predef.entityB = gs.vector[0];
} else if(gs.lineSegments == 1 && gs.n == 1) {
g.predef.origin = SK.GetEntity(gs.entity[0])->point[0];
g.predef.entityB = gs.entity[0];
// since a line segment is a vector
} else {
Error("Bad selection for new lathe group. This group can "
"be created with:\n\n"
" * a point and a line segment or normal "
"(revolved about an axis parallel to line / "
"normal, through point)\n"
" * a line segment (revolved about line segment)\n");
return;
}
g.type = LATHE;
g.opA = SS.GW.activeGroup;
g.name.strcpy("lathe");
break;
case GraphicsWindow::MNU_GROUP_ROT: {
if(gs.points == 1 && gs.n == 1 && SS.GW.LockedInWorkplane()) {
g.predef.origin = gs.point[0];
Entity *w = SK.GetEntity(SS.GW.ActiveWorkplane());
g.predef.entityB = w->Normal()->h;
g.activeWorkplane = w->h;
} else if(gs.points == 1 && gs.vectors == 1 && gs.n == 2) {
g.predef.origin = gs.point[0];
g.predef.entityB = gs.vector[0];
} else {
Error("Bad selection for new rotation. This group can "
"be created with:\n\n"
" * a point, while locked in workplane (rotate "
"in plane, about that point)\n"
" * a point and a line or a normal (rotate about "
"an axis through the point, and parallel to "
"line / normal)\n");
return;
}
g.type = ROTATE;
g.opA = SS.GW.activeGroup;
g.valA = 3;
g.subtype = ONE_SIDED;
g.name.strcpy("rotate");
break;
}
case GraphicsWindow::MNU_GROUP_TRANS:
g.type = TRANSLATE;
g.opA = SS.GW.activeGroup;
g.valA = 3;
g.subtype = ONE_SIDED;
g.predef.entityB = SS.GW.ActiveWorkplane();
g.activeWorkplane = SS.GW.ActiveWorkplane();
g.name.strcpy("translate");
break;
case GraphicsWindow::MNU_GROUP_IMPORT: {
g.type = IMPORTED;
g.opA = SS.GW.activeGroup;
if(strlen(g.impFile) == 0) {
if(!GetOpenFile(g.impFile, SLVS_EXT, SLVS_PATTERN)) return;
}
// Assign the default name of the group based on the name of
// the imported file.
char groupName[MAX_PATH];
strcpy(groupName, g.impFile);
char *dot = strrchr(groupName, '.');
if(dot) *dot = '\0';
char *s, *start = groupName;
for(s = groupName; *s; s++) {
if(*s == '/' || *s == '\\') {
start = s + 1;
} else if(isalnum(*s)) {
// do nothing, valid character
} else {
// convert invalid characters (like spaces) to dashes
*s = '-';
}
}
if(strlen(start) > 0) {
g.name.strcpy(start);
} else {
g.name.strcpy("import");
}
g.meshCombine = COMBINE_AS_ASSEMBLE;
break;
}
default: oops();
}
SS.GW.ClearSelection();
SS.UndoRemember();
SK.group.AddAndAssignId(&g);
Group *gg = SK.GetGroup(g.h);
if(gg->type == IMPORTED) {
SS.ReloadAllImported();
}
gg->clean = false;
SS.GW.activeGroup = gg->h;
SS.GenerateAll();
if(gg->type == DRAWING_WORKPLANE) {
// Can't set the active workplane for this one until after we've
// regenerated, because the workplane doesn't exist until then.
gg->activeWorkplane = gg->h.entity(0);
}
gg->Activate();
SS.GW.AnimateOntoWorkplane();
TextWindow::ScreenSelectGroup(0, gg->h.v);
SS.later.showTW = true;
}
void Group::TransformImportedBy(Vector t, Quaternion q) {
if(type != IMPORTED) oops();
hParam tx, ty, tz, qw, qx, qy, qz;
tx = h.param(0);
ty = h.param(1);
tz = h.param(2);
qw = h.param(3);
qx = h.param(4);
qy = h.param(5);
qz = h.param(6);
Quaternion qg = Quaternion::From(qw, qx, qy, qz);
qg = q.Times(qg);
Vector tg = Vector::From(tx, ty, tz);
tg = tg.Plus(t);
SK.GetParam(tx)->val = tg.x;
SK.GetParam(ty)->val = tg.y;
SK.GetParam(tz)->val = tg.z;
SK.GetParam(qw)->val = qg.w;
SK.GetParam(qx)->val = qg.vx;
SK.GetParam(qy)->val = qg.vy;
SK.GetParam(qz)->val = qg.vz;
}
char *Group::DescriptionString(void) {
static char ret[100];
if(name.str[0]) {
sprintf(ret, "g%03x-%s", h.v, name.str);
} else {
sprintf(ret, "g%03x-(unnamed)", h.v);
}
return ret;
}
void Group::Activate(void) {
if(type == EXTRUDE || type == IMPORTED) {
SS.GW.showFaces = true;
} else {
SS.GW.showFaces = false;
}
SS.MarkGroupDirty(h); // for good measure; shouldn't be needed
SS.later.generateAll = true;
SS.later.showTW = true;
}
void Group::Generate(IdList<Entity,hEntity> *entity,
IdList<Param,hParam> *param)
{
Vector gn = (SS.GW.projRight).Cross(SS.GW.projUp);
Vector gp = SS.GW.projRight.Plus(SS.GW.projUp);
Vector gc = (SS.GW.offset).ScaledBy(-1);
gn = gn.WithMagnitude(200/SS.GW.scale);
gp = gp.WithMagnitude(200/SS.GW.scale);
int a, i;
switch(type) {
case DRAWING_3D:
break;
case DRAWING_WORKPLANE: {
Quaternion q;
if(subtype == WORKPLANE_BY_LINE_SEGMENTS) {
Vector u = SK.GetEntity(predef.entityB)->VectorGetNum();
Vector v = SK.GetEntity(predef.entityC)->VectorGetNum();
u = u.WithMagnitude(1);
Vector n = u.Cross(v);
v = (n.Cross(u)).WithMagnitude(1);
if(predef.swapUV) SWAP(Vector, u, v);
if(predef.negateU) u = u.ScaledBy(-1);
if(predef.negateV) v = v.ScaledBy(-1);
q = Quaternion::From(u, v);
} else if(subtype == WORKPLANE_BY_POINT_ORTHO) {
// Already given, numerically.
q = predef.q;
} else oops();
Entity normal;
memset(&normal, 0, sizeof(normal));
normal.type = Entity::NORMAL_N_COPY;
normal.numNormal = q;
normal.point[0] = h.entity(2);
normal.group = h;
normal.h = h.entity(1);
entity->Add(&normal);
Entity point;
memset(&point, 0, sizeof(point));
point.type = Entity::POINT_N_COPY;
point.numPoint = SK.GetEntity(predef.origin)->PointGetNum();
point.group = h;
point.h = h.entity(2);
entity->Add(&point);
Entity wp;
memset(&wp, 0, sizeof(wp));
wp.type = Entity::WORKPLANE;
wp.normal = normal.h;
wp.point[0] = point.h;
wp.group = h;
wp.h = h.entity(0);
entity->Add(&wp);
break;
}
case EXTRUDE: {
AddParam(param, h.param(0), gn.x);
AddParam(param, h.param(1), gn.y);
AddParam(param, h.param(2), gn.z);
int ai, af;
if(subtype == ONE_SIDED) {
ai = 0; af = 2;
} else if(subtype == TWO_SIDED) {
ai = -1; af = 1;
} else oops();
// Get some arbitrary point in the sketch, that will be used
// as a reference when defining top and bottom faces.
hEntity pt = { 0 };
for(i = 0; i < entity->n; i++) {
Entity *e = &(entity->elem[i]);
if(e->group.v != opA.v) continue;
if(e->IsPoint()) pt = e->h;
e->CalculateNumerical(false);
hEntity he = e->h; e = NULL;
// As soon as I call CopyEntity, e may become invalid! That
// adds entities, which may cause a realloc.
CopyEntity(entity, SK.GetEntity(he), ai, REMAP_BOTTOM,
h.param(0), h.param(1), h.param(2),
NO_PARAM, NO_PARAM, NO_PARAM, NO_PARAM,
true, false);
CopyEntity(entity, SK.GetEntity(he), af, REMAP_TOP,
h.param(0), h.param(1), h.param(2),
NO_PARAM, NO_PARAM, NO_PARAM, NO_PARAM,
true, false);
MakeExtrusionLines(entity, he);
}
// Remapped versions of that arbitrary point will be used to
// provide points on the plane faces.
MakeExtrusionTopBottomFaces(entity, pt);
break;
}
case LATHE: {
break;
}
case TRANSLATE: {
// The translation vector
AddParam(param, h.param(0), gp.x);
AddParam(param, h.param(1), gp.y);
AddParam(param, h.param(2), gp.z);
int n = (int)valA, a0 = 0;
if(subtype == ONE_SIDED && skipFirst) {
a0++; n++;
}
for(a = a0; a < n; a++) {
for(i = 0; i < entity->n; i++) {
Entity *e = &(entity->elem[i]);
if(e->group.v != opA.v) continue;
e->CalculateNumerical(false);
CopyEntity(entity, e,
a*2 - (subtype == ONE_SIDED ? 0 : (n-1)),
(a == (n - 1)) ? REMAP_LAST : a,
h.param(0), h.param(1), h.param(2),
NO_PARAM, NO_PARAM, NO_PARAM, NO_PARAM,
true, false);
}
}
break;
}
case ROTATE: {
// The center of rotation
AddParam(param, h.param(0), gc.x);
AddParam(param, h.param(1), gc.y);
AddParam(param, h.param(2), gc.z);
// The rotation quaternion
AddParam(param, h.param(3), 30*PI/180);
AddParam(param, h.param(4), gn.x);
AddParam(param, h.param(5), gn.y);
AddParam(param, h.param(6), gn.z);
int n = (int)valA, a0 = 0;
if(subtype == ONE_SIDED && skipFirst) {
a0++; n++;
}
for(a = a0; a < n; a++) {
for(i = 0; i < entity->n; i++) {
Entity *e = &(entity->elem[i]);
if(e->group.v != opA.v) continue;
e->CalculateNumerical(false);
CopyEntity(entity, e,
a*2 - (subtype == ONE_SIDED ? 0 : (n-1)),
(a == (n - 1)) ? REMAP_LAST : a,
h.param(0), h.param(1), h.param(2),
h.param(3), h.param(4), h.param(5), h.param(6),
false, true);
}
}
break;
}
case IMPORTED:
// The translation vector
AddParam(param, h.param(0), gp.x);
AddParam(param, h.param(1), gp.y);
AddParam(param, h.param(2), gp.z);
// The rotation quaternion
AddParam(param, h.param(3), 1);
AddParam(param, h.param(4), 0);
AddParam(param, h.param(5), 0);
AddParam(param, h.param(6), 0);
for(i = 0; i < impEntity.n; i++) {
Entity *ie = &(impEntity.elem[i]);
CopyEntity(entity, ie, 0, 0,
h.param(0), h.param(1), h.param(2),
h.param(3), h.param(4), h.param(5), h.param(6),
false, false);
}
break;
default: oops();
}
}
void Group::AddEq(IdList<Equation,hEquation> *l, Expr *expr, int index) {
Equation eq;
eq.e = expr;
eq.h = h.equation(index);
l->Add(&eq);
}
void Group::GenerateEquations(IdList<Equation,hEquation> *l) {
Equation eq;
ZERO(&eq);
if(type == IMPORTED) {
// Normalize the quaternion
ExprQuaternion q = {
Expr::From(h.param(3)),
Expr::From(h.param(4)),
Expr::From(h.param(5)),
Expr::From(h.param(6)) };
AddEq(l, (q.Magnitude())->Minus(Expr::From(1)), 0);
} else if(type == ROTATE) {
// The axis and center of rotation are specified numerically
#define EC(x) (Expr::From(x))
#define EP(x) (Expr::From(h.param(x)))
ExprVector orig = SK.GetEntity(predef.origin)->PointGetExprs();
AddEq(l, (orig.x)->Minus(EP(0)), 0);
AddEq(l, (orig.y)->Minus(EP(1)), 1);
AddEq(l, (orig.z)->Minus(EP(2)), 2);
// param 3 is the angle, which is free
Vector axis = SK.GetEntity(predef.entityB)->VectorGetNum();
axis = axis.WithMagnitude(1);
AddEq(l, (EC(axis.x))->Minus(EP(4)), 3);
AddEq(l, (EC(axis.y))->Minus(EP(5)), 4);
AddEq(l, (EC(axis.z))->Minus(EP(6)), 5);
#undef EC
#undef EP
} else if(type == EXTRUDE) {
if(predef.entityB.v != Entity::FREE_IN_3D.v) {
// The extrusion path is locked along a line, normal to the
// specified workplane.
Entity *w = SK.GetEntity(predef.entityB);
ExprVector u = w->Normal()->NormalExprsU();
ExprVector v = w->Normal()->NormalExprsV();
ExprVector extruden = {
Expr::From(h.param(0)),
Expr::From(h.param(1)),
Expr::From(h.param(2)) };
AddEq(l, u.Dot(extruden), 0);
AddEq(l, v.Dot(extruden), 1);
}
} else if(type == TRANSLATE) {
if(predef.entityB.v != Entity::FREE_IN_3D.v) {
Entity *w = SK.GetEntity(predef.entityB);
ExprVector n = w->Normal()->NormalExprsN();
ExprVector trans;
trans = ExprVector::From(h.param(0), h.param(1), h.param(2));
// The translation vector is parallel to the workplane
AddEq(l, trans.Dot(n), 0);
}
}
}
hEntity Group::Remap(hEntity in, int copyNumber) {
// A hash table is used to accelerate the search
int hash = ((unsigned)(in.v*61 + copyNumber)) % REMAP_PRIME;
int i = remapCache[hash];
if(i >= 0 && i < remap.n) {
EntityMap *em = &(remap.elem[i]);
if(em->input.v == in.v && em->copyNumber == copyNumber) {
return h.entity(em->h.v);
}
}
// but if we don't find it in the hash table, then linear search
for(i = 0; i < remap.n; i++) {
EntityMap *em = &(remap.elem[i]);
if(em->input.v == in.v && em->copyNumber == copyNumber) {
// We already have a mapping for this entity.
remapCache[hash] = i;
return h.entity(em->h.v);
}
}
// And if we still don't find it, then create a new entry.
EntityMap em;
em.input = in;
em.copyNumber = copyNumber;
remap.AddAndAssignId(&em);
return h.entity(em.h.v);
}
void Group::MakeExtrusionLines(IdList<Entity,hEntity> *el, hEntity in) {
Entity *ep = SK.GetEntity(in);
Entity en;
ZERO(&en);
if(ep->IsPoint()) {
// A point gets extruded to form a line segment
en.point[0] = Remap(ep->h, REMAP_TOP);
en.point[1] = Remap(ep->h, REMAP_BOTTOM);
en.group = h;
en.construction = ep->construction;
en.style = ep->style;
en.h = Remap(ep->h, REMAP_PT_TO_LINE);
en.type = Entity::LINE_SEGMENT;
el->Add(&en);
} else if(ep->type == Entity::LINE_SEGMENT) {
// A line gets extruded to form a plane face; an endpoint of the
// original line is a point in the plane, and the line is in the plane.
Vector a = SK.GetEntity(ep->point[0])->PointGetNum();
Vector b = SK.GetEntity(ep->point[1])->PointGetNum();
Vector ab = b.Minus(a);
en.param[0] = h.param(0);
en.param[1] = h.param(1);
en.param[2] = h.param(2);
en.numPoint = a;
en.numNormal = Quaternion::From(0, ab.x, ab.y, ab.z);
en.group = h;
en.construction = ep->construction;
en.style = ep->style;
en.h = Remap(ep->h, REMAP_LINE_TO_FACE);
en.type = Entity::FACE_XPROD;
el->Add(&en);
}
}
void Group::MakeExtrusionTopBottomFaces(IdList<Entity,hEntity> *el, hEntity pt)
{
if(pt.v == 0) return;
Group *src = SK.GetGroup(opA);
Vector n = src->polyLoops.normal;
Entity en;
ZERO(&en);
en.type = Entity::FACE_NORMAL_PT;
en.group = h;
en.numNormal = Quaternion::From(0, n.x, n.y, n.z);
en.point[0] = Remap(pt, REMAP_TOP);
en.h = Remap(Entity::NO_ENTITY, REMAP_TOP);
el->Add(&en);
en.point[0] = Remap(pt, REMAP_BOTTOM);
en.h = Remap(Entity::NO_ENTITY, REMAP_BOTTOM);
el->Add(&en);
}
void Group::CopyEntity(IdList<Entity,hEntity> *el,
Entity *ep, int timesApplied, int remap,
hParam dx, hParam dy, hParam dz,
hParam qw, hParam qvx, hParam qvy, hParam qvz,
bool asTrans, bool asAxisAngle)
{
Entity en;
ZERO(&en);
en.type = ep->type;
en.extraPoints = ep->extraPoints;
en.h = Remap(ep->h, remap);
en.timesApplied = timesApplied;
en.group = h;
en.construction = ep->construction;
en.style = ep->style;
en.str.strcpy(ep->str.str);
en.font.strcpy(ep->font.str);
switch(ep->type) {
case Entity::WORKPLANE:
// Don't copy these.
return;
case Entity::POINT_N_COPY:
case Entity::POINT_N_TRANS:
case Entity::POINT_N_ROT_TRANS:
case Entity::POINT_N_ROT_AA:
case Entity::POINT_IN_3D:
case Entity::POINT_IN_2D:
if(asTrans) {
en.type = Entity::POINT_N_TRANS;
en.param[0] = dx;
en.param[1] = dy;
en.param[2] = dz;
} else {
if(asAxisAngle) {
en.type = Entity::POINT_N_ROT_AA;
} else {
en.type = Entity::POINT_N_ROT_TRANS;
}
en.param[0] = dx;
en.param[1] = dy;
en.param[2] = dz;
en.param[3] = qw;
en.param[4] = qvx;
en.param[5] = qvy;
en.param[6] = qvz;
}
en.numPoint = (ep->actPoint).ScaledBy(scale);
break;
case Entity::NORMAL_N_COPY:
case Entity::NORMAL_N_ROT:
case Entity::NORMAL_N_ROT_AA:
case Entity::NORMAL_IN_3D:
case Entity::NORMAL_IN_2D:
if(asTrans) {
en.type = Entity::NORMAL_N_COPY;
} else {
if(asAxisAngle) {
en.type = Entity::NORMAL_N_ROT_AA;
} else {
en.type = Entity::NORMAL_N_ROT;
}
en.param[0] = qw;
en.param[1] = qvx;
en.param[2] = qvy;
en.param[3] = qvz;
}
en.numNormal = ep->actNormal;
if(scale < 0) en.numNormal = en.numNormal.Mirror();
en.point[0] = Remap(ep->point[0], remap);
break;
case Entity::DISTANCE_N_COPY:
case Entity::DISTANCE:
en.type = Entity::DISTANCE_N_COPY;
en.numDistance = ep->actDistance*fabs(scale);
break;
case Entity::FACE_NORMAL_PT:
case Entity::FACE_XPROD:
case Entity::FACE_N_ROT_TRANS:
case Entity::FACE_N_TRANS:
case Entity::FACE_N_ROT_AA:
if(asTrans) {
en.type = Entity::FACE_N_TRANS;
en.param[0] = dx;
en.param[1] = dy;
en.param[2] = dz;
} else {
if(asAxisAngle) {
en.type = Entity::FACE_N_ROT_AA;
} else {
en.type = Entity::FACE_N_ROT_TRANS;
}
en.param[0] = dx;
en.param[1] = dy;
en.param[2] = dz;
en.param[3] = qw;
en.param[4] = qvx;
en.param[5] = qvy;
en.param[6] = qvz;
}
en.numPoint = (ep->actPoint).ScaledBy(scale);
en.numNormal = (ep->actNormal).ScaledBy(scale);
break;
default: {
int i, points;
bool hasNormal, hasDistance;
EntReqTable::GetEntityInfo(ep->type, ep->extraPoints,
NULL, &points, &hasNormal, &hasDistance);
for(i = 0; i < points; i++) {
en.point[i] = Remap(ep->point[i], remap);
}
if(hasNormal) en.normal = Remap(ep->normal, remap);
if(hasDistance) en.distance = Remap(ep->distance, remap);
break;
}
}
// If the entity came from an imported file where it was invisible then
// ep->actiVisble will be false, and we should hide it. Or if the entity
// came from a copy (e.g. step and repeat) of a force-hidden imported
// entity, then we also want to hide it.
en.forceHidden = (!ep->actVisible) || ep->forceHidden;
el->Add(&en);
}
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