void GraphicsWindow::Selection::Draw(void) {
Vector refp;
if(entity.v) {
Entity *e = SK.GetEntity(entity);
e->Draw();
if(emphasized) refp = e->GetReferencePos();
}
if(constraint.v) {
Constraint *c = SK.GetConstraint(constraint);
c->Draw();
if(emphasized) refp = c->GetReferencePos();
}
if(emphasized && (constraint.v || entity.v)) {
// We want to emphasize this constraint or entity, by drawing a thick
// line from the top left corner of the screen to the reference point
// of that entity or constraint.
double s = 0.501/SS.GW.scale;
Vector topLeft = SS.GW.projRight.ScaledBy(-SS.GW.width*s);
topLeft = topLeft.Plus(SS.GW.projUp.ScaledBy(SS.GW.height*s));
topLeft = topLeft.Minus(SS.GW.offset);
glLineWidth(40);
DWORD rgb = Style::Color(Style::HOVERED);
glColor4d(REDf(rgb), GREENf(rgb), BLUEf(rgb), 0.2);
glBegin(GL_LINES);
glxVertex3v(topLeft);
glxVertex3v(refp);
glEnd();
glLineWidth(1);
}
}
void TextWindow::MakeColorTable(const Color *in, float *out) {
int i;
for(i = 0; in[i].c != 0; i++) {
int c = in[i].c;
if(c < 0 || c > 255) oops();
out[c*3 + 0] = REDf(in[i].color);
out[c*3 + 1] = GREENf(in[i].color);
out[c*3 + 2] = BLUEf(in[i].color);
}
}
void TextWindow::ShowEditControlWithColorPicker(int halfRow, int col, DWORD rgb)
{
char str[1024];
sprintf(str, "%.2f, %.2f, %.2f", REDf(rgb), GREENf(rgb), BLUEf(rgb));
SS.later.showTW = true;
editControl.colorPicker.show = true;
editControl.colorPicker.rgb = rgb;
editControl.colorPicker.h = 0;
editControl.colorPicker.s = 0;
editControl.colorPicker.v = 1;
ShowEditControl(halfRow, col, str);
}
void TextWindow::ShowGroupInfo(void) {
Group *pg, *g = SK.group.FindById(shown.group);
const char *s = "???";
if(shown.group.v == Group::HGROUP_REFERENCES.v) {
Printf(true, "%FtGROUP %E%s", g->DescriptionString());
goto list_items;
} else {
Printf(true, "%FtGROUP %E%s [%Fl%Ll%D%frename%E/%Fl%Ll%D%fdel%E]",
g->DescriptionString(),
g->h.v, &TextWindow::ScreenChangeGroupName,
g->h.v, &TextWindow::ScreenDeleteGroup);
}
if(g->type == Group::LATHE) {
Printf(true, " %Ftlathe plane sketch");
} else if(g->type == Group::EXTRUDE || g->type == Group::ROTATE ||
g->type == Group::TRANSLATE)
{
if(g->type == Group::EXTRUDE) {
s = "extrude plane sketch";
} else if(g->type == Group::TRANSLATE) {
s = "translate original sketch";
} else if(g->type == Group::ROTATE) {
s = "rotate original sketch";
}
Printf(true, " %Ft%s%E", s);
bool one = (g->subtype == Group::ONE_SIDED);
Printf(false,
"%Ba %f%Ls%Fd%c one-sided%E "
"%f%LS%Fd%c two-sided%E",
&TextWindow::ScreenChangeGroupOption,
one ? RADIO_TRUE : RADIO_FALSE,
&TextWindow::ScreenChangeGroupOption,
!one ? RADIO_TRUE : RADIO_FALSE);
if(g->type == Group::ROTATE || g->type == Group::TRANSLATE) {
if(g->subtype == Group::ONE_SIDED) {
bool skip = g->skipFirst;
Printf(false,
"%Bd %Ftstart %f%LK%Fd%c with original%E "
"%f%Lk%Fd%c with copy #1%E",
&ScreenChangeGroupOption,
!skip ? RADIO_TRUE : RADIO_FALSE,
&ScreenChangeGroupOption,
skip ? RADIO_TRUE : RADIO_FALSE);
}
int times = (int)(g->valA);
Printf(false, "%Bp %Ftrepeat%E %d time%s %Fl%Ll%D%f[change]%E",
(g->subtype == Group::ONE_SIDED) ? 'a' : 'd',
times, times == 1 ? "" : "s",
g->h.v, &TextWindow::ScreenChangeExprA);
}
} else if(g->type == Group::IMPORTED) {
Printf(true, " %Ftimport geometry from file%E");
Printf(false, "%Ba '%s'", g->impFileRel.c_str());
Printf(false, "%Bd %Ftscaled by%E %# %Fl%Ll%f%D[change]%E",
g->scale,
&TextWindow::ScreenChangeGroupScale, g->h.v);
} else if(g->type == Group::DRAWING_3D) {
Printf(true, " %Ftsketch in 3d%E");
} else if(g->type == Group::DRAWING_WORKPLANE) {
Printf(true, " %Ftsketch in new workplane%E");
} else {
Printf(true, "???");
}
Printf(false, "");
if(g->type == Group::EXTRUDE ||
g->type == Group::LATHE ||
g->type == Group::IMPORTED)
{
bool un = (g->meshCombine == Group::COMBINE_AS_UNION);
bool diff = (g->meshCombine == Group::COMBINE_AS_DIFFERENCE);
bool asy = (g->meshCombine == Group::COMBINE_AS_ASSEMBLE);
bool asa = (g->type == Group::IMPORTED);
Printf(false, " %Ftsolid model as");
Printf(false, "%Ba %f%D%Lc%Fd%c union%E "
"%f%D%Lc%Fd%c difference%E "
"%f%D%Lc%Fd%c%s%E ",
&TextWindow::ScreenChangeGroupOption,
Group::COMBINE_AS_UNION,
un ? RADIO_TRUE : RADIO_FALSE,
&TextWindow::ScreenChangeGroupOption,
Group::COMBINE_AS_DIFFERENCE,
diff ? RADIO_TRUE : RADIO_FALSE,
&TextWindow::ScreenChangeGroupOption,
Group::COMBINE_AS_ASSEMBLE,
asa ? (asy ? RADIO_TRUE : RADIO_FALSE) : 0,
asa ? " assemble" : "");
if(g->type == Group::EXTRUDE ||
g->type == Group::LATHE)
{
Printf(false,
"%Bd %Ftcolor %E%Bp %Bd (%@, %@, %@) %f%D%Lf%Fl[change]%E",
0x80000000 | g->color,
REDf(g->color), GREENf(g->color), BLUEf(g->color),
ScreenColor, top[rows-1] + 2);
} else if(g->type == Group::IMPORTED) {
Printf(false, " %Fd%f%LP%c suppress this group's solid model",
&TextWindow::ScreenChangeGroupOption,
g->suppress ? CHECK_TRUE : CHECK_FALSE);
}
Printf(false, "");
}
Printf(false, " %f%Lv%Fd%c show entities from this group",
&TextWindow::ScreenChangeGroupOption,
g->visible ? CHECK_TRUE : CHECK_FALSE);
pg = g->PreviousGroup();
if(pg && pg->runningMesh.IsEmpty() && g->thisMesh.IsEmpty()) {
Printf(false, " %f%Lf%Fd%c force NURBS surfaces to triangle mesh",
&TextWindow::ScreenChangeGroupOption,
g->forceToMesh ? CHECK_TRUE : CHECK_FALSE);
} else {
Printf(false, " (model already forced to triangle mesh)");
}
Printf(true, " %f%Lr%Fd%c relax constraints and dimensions",
&TextWindow::ScreenChangeGroupOption,
g->relaxConstraints ? CHECK_TRUE : CHECK_FALSE);
Printf(false, " %f%Ld%Fd%c treat all dimensions as reference",
&TextWindow::ScreenChangeGroupOption,
g->allDimsReference ? CHECK_TRUE : CHECK_FALSE);
if(g->booleanFailed) {
Printf(false, "");
Printf(false, "The Boolean operation failed. It may be ");
Printf(false, "possible to fix the problem by choosing ");
Printf(false, "'force NURBS surfaces to triangle mesh'.");
}
list_items:
Printf(false, "");
Printf(false, "%Ft requests in group");
int i, a = 0;
for(i = 0; i < SK.request.n; i++) {
Request *r = &(SK.request.elem[i]);
if(r->group.v == shown.group.v) {
char *s = r->DescriptionString();
Printf(false, "%Bp %Fl%Ll%D%f%h%s%E",
(a & 1) ? 'd' : 'a',
r->h.v, (&TextWindow::ScreenSelectRequest),
&(TextWindow::ScreenHoverRequest), s);
a++;
}
}
if(a == 0) Printf(false, "%Ba (none)");
a = 0;
Printf(false, "");
Printf(false, "%Ft constraints in group (%d DOF)", g->solved.dof);
for(i = 0; i < SK.constraint.n; i++) {
Constraint *c = &(SK.constraint.elem[i]);
if(c->group.v == shown.group.v) {
char *s = c->DescriptionString();
Printf(false, "%Bp %Fl%Ll%D%f%h%s%E %s",
(a & 1) ? 'd' : 'a',
c->h.v, (&TextWindow::ScreenSelectConstraint),
(&TextWindow::ScreenHoverConstraint), s,
c->reference ? "(ref)" : "");
a++;
}
}
if(a == 0) Printf(false, "%Ba (none)");
}
void SolveSpace::ExportLinesAndMesh(SEdgeList *sel, SBezierList *sbl, SMesh *sm,
Vector u, Vector v, Vector n,
Vector origin, double cameraTan,
VectorFileWriter *out)
{
double s = 1.0 / SS.exportScale;
// Project into the export plane; so when we're done, z doesn't matter,
// and x and y are what goes in the DXF.
SEdge *e;
for(e = sel->l.First(); e; e = sel->l.NextAfter(e)) {
// project into the specified csys, and apply export scale
(e->a) = e->a.InPerspective(u, v, n, origin, cameraTan).ScaledBy(s);
(e->b) = e->b.InPerspective(u, v, n, origin, cameraTan).ScaledBy(s);
}
SBezier *b;
if(sbl) {
for(b = sbl->l.First(); b; b = sbl->l.NextAfter(b)) {
*b = b->InPerspective(u, v, n, origin, cameraTan);
int i;
for(i = 0; i <= b->deg; i++) {
b->ctrl[i] = (b->ctrl[i]).ScaledBy(s);
}
}
}
// If cutter radius compensation is requested, then perform it now
if(fabs(SS.exportOffset) > LENGTH_EPS) {
// assemble those edges into a polygon, and clear the edge list
SPolygon sp;
ZERO(&sp);
sel->AssemblePolygon(&sp, NULL);
sel->Clear();
SPolygon compd;
ZERO(&compd);
sp.normal = Vector::From(0, 0, -1);
sp.FixContourDirections();
sp.OffsetInto(&compd, SS.exportOffset*s);
sp.Clear();
compd.MakeEdgesInto(sel);
compd.Clear();
}
// Now the triangle mesh; project, then build a BSP to perform
// occlusion testing and generated the shaded surfaces.
SMesh smp;
ZERO(&smp);
if(sm) {
Vector l0 = (SS.lightDir[0]).WithMagnitude(1),
l1 = (SS.lightDir[1]).WithMagnitude(1);
STriangle *tr;
for(tr = sm->l.First(); tr; tr = sm->l.NextAfter(tr)) {
STriangle tt = *tr;
tt.a = (tt.a).InPerspective(u, v, n, origin, cameraTan).ScaledBy(s);
tt.b = (tt.b).InPerspective(u, v, n, origin, cameraTan).ScaledBy(s);
tt.c = (tt.c).InPerspective(u, v, n, origin, cameraTan).ScaledBy(s);
// And calculate lighting for the triangle
Vector n = tt.Normal().WithMagnitude(1);
double lighting = SS.ambientIntensity +
max(0, (SS.lightIntensity[0])*(n.Dot(l0))) +
max(0, (SS.lightIntensity[1])*(n.Dot(l1)));
double r = min(1, REDf (tt.meta.color)*lighting),
g = min(1, GREENf(tt.meta.color)*lighting),
b = min(1, BLUEf (tt.meta.color)*lighting);
tt.meta.color = RGBf(r, g, b);
smp.AddTriangle(&tt);
}
}
// Use the BSP routines to generate the split triangles in paint order.
SBsp3 *bsp = SBsp3::FromMesh(&smp);
SMesh sms;
ZERO(&sms);
bsp->GenerateInPaintOrder(&sms);
// And cull the back-facing triangles
STriangle *tr;
sms.l.ClearTags();
for(tr = sms.l.First(); tr; tr = sms.l.NextAfter(tr)) {
Vector n = tr->Normal();
if(n.z < 0) {
tr->tag = 1;
}
}
sms.l.RemoveTagged();
// And now we perform hidden line removal if requested
SEdgeList hlrd;
ZERO(&hlrd);
if(sm && !SS.GW.showHdnLines) {
SKdNode *root = SKdNode::From(&smp);
// Generate the edges where a curved surface turns from front-facing
// to back-facing.
if(SS.GW.showEdges) {
root->MakeCertainEdgesInto(sel, SKdNode::TURNING_EDGES,
false, NULL, NULL);
}
root->ClearTags();
int cnt = 1234;
SEdge *se;
for(se = sel->l.First(); se; se = sel->l.NextAfter(se)) {
if(se->auxA == Style::CONSTRAINT) {
// Constraints should not get hidden line removed; they're
// always on top.
hlrd.AddEdge(se->a, se->b, se->auxA);
continue;
}
SEdgeList out;
ZERO(&out);
// Split the original edge against the mesh
out.AddEdge(se->a, se->b, se->auxA);
root->OcclusionTestLine(*se, &out, cnt);
// the occlusion test splits unnecessarily; so fix those
out.MergeCollinearSegments(se->a, se->b);
cnt++;
// And add the results to our output
SEdge *sen;
for(sen = out.l.First(); sen; sen = out.l.NextAfter(sen)) {
hlrd.AddEdge(sen->a, sen->b, sen->auxA);
}
out.Clear();
}
sel = &hlrd;
}
// We kept the line segments and Beziers separate until now; but put them
// all together, and also project everything into the xy plane, since not
// all export targets ignore the z component of the points.
for(e = sel->l.First(); e; e = sel->l.NextAfter(e)) {
SBezier sb = SBezier::From(e->a, e->b);
sb.auxA = e->auxA;
sbl->l.Add(&sb);
}
for(b = sbl->l.First(); b; b = sbl->l.NextAfter(b)) {
for(int i = 0; i <= b->deg; i++) {
b->ctrl[i].z = 0;
}
}
// If possible, then we will assemble these output curves into loops. They
// will then get exported as closed paths.
SBezierLoopSetSet sblss;
ZERO(&sblss);
SBezierList leftovers;
ZERO(&leftovers);
SSurface srf = SSurface::FromPlane(Vector::From(0, 0, 0),
Vector::From(1, 0, 0),
Vector::From(0, 1, 0));
SPolygon spxyz;
ZERO(&spxyz);
bool allClosed;
SEdge notClosedAt;
sbl->l.ClearTags();
sblss.FindOuterFacesFrom(sbl, &spxyz, &srf,
SS.ChordTolMm()*s,
&allClosed, ¬ClosedAt,
NULL, NULL,
&leftovers);
for(b = leftovers.l.First(); b; b = leftovers.l.NextAfter(b)) {
sblss.AddOpenPath(b);
}
// Now write the lines and triangles to the output file
out->Output(&sblss, &sms);
leftovers.Clear();
spxyz.Clear();
sblss.Clear();
smp.Clear();
sms.Clear();
hlrd.Clear();
}
void GraphicsWindow::Paint(void) {
int i;
havePainted = true;
int w, h;
GetGraphicsWindowSize(&w, &h);
width = w; height = h;
glViewport(0, 0, w, h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glScaled(scale*2.0/w, scale*2.0/h, scale*1.0/30000);
double mat[16];
// Last thing before display is to apply the perspective
double clp = SS.CameraTangent()*scale;
MakeMatrix(mat, 1, 0, 0, 0,
0, 1, 0, 0,
0, 0, 1, 0,
0, 0, clp, 1);
glMultMatrixd(mat);
// Before that, we apply the rotation
Vector n = projUp.Cross(projRight);
MakeMatrix(mat, projRight.x, projRight.y, projRight.z, 0,
projUp.x, projUp.y, projUp.z, 0,
n.x, n.y, n.z, 0,
0, 0, 0, 1);
glMultMatrixd(mat);
// And before that, the translation
MakeMatrix(mat, 1, 0, 0, offset.x,
0, 1, 0, offset.y,
0, 0, 1, offset.z,
0, 0, 0, 1);
glMultMatrixd(mat);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glShadeModel(GL_SMOOTH);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_BLEND);
glEnable(GL_LINE_SMOOTH);
// don't enable GL_POLYGON_SMOOTH; that looks ugly on some graphics cards,
// drawn with leaks in the mesh
glEnable(GL_POLYGON_OFFSET_LINE);
glEnable(GL_POLYGON_OFFSET_FILL);
glEnable(GL_DEPTH_TEST);
glHint(GL_LINE_SMOOTH_HINT, GL_NICEST);
glEnable(GL_NORMALIZE);
// At the same depth, we want later lines drawn over earlier.
glDepthFunc(GL_LEQUAL);
if(SS.AllGroupsOkay()) {
glClearColor(REDf(SS.backgroundColor),
GREENf(SS.backgroundColor),
BLUEf(SS.backgroundColor), 1.0f);
} else {
// Draw a different background whenever we're having solve problems.
DWORD rgb = Style::Color(Style::DRAW_ERROR);
glClearColor(0.4f*REDf(rgb), 0.4f*GREENf(rgb), 0.4f*BLUEf(rgb), 1.0f);
// And show the text window, which has info to debug it
ForceTextWindowShown();
}
glClear(GL_COLOR_BUFFER_BIT);
glClearDepth(1.0);
glClear(GL_DEPTH_BUFFER_BIT);
if(SS.bgImage.fromFile) {
// If a background image is loaded, then we draw it now as a texture.
// This handles the resizing for us nicely.
glBindTexture(GL_TEXTURE_2D, TEXTURE_BACKGROUND_IMG);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB,
SS.bgImage.rw, SS.bgImage.rh,
0,
GL_RGB, GL_UNSIGNED_BYTE,
SS.bgImage.fromFile);
double tw = ((double)SS.bgImage.w) / SS.bgImage.rw,
th = ((double)SS.bgImage.h) / SS.bgImage.rh;
double mmw = SS.bgImage.w / SS.bgImage.scale,
mmh = SS.bgImage.h / SS.bgImage.scale;
Vector origin = SS.bgImage.origin;
origin = origin.DotInToCsys(projRight, projUp, n);
// Place the depth of our origin at the point that corresponds to
// w = 1, so that it's unaffected by perspective.
origin.z = (offset.ScaledBy(-1)).Dot(n);
origin = origin.ScaleOutOfCsys(projRight, projUp, n);
// Place the background at the very back of the Z order, though, by
// mucking with the depth range.
glDepthRange(1, 1);
glEnable(GL_TEXTURE_2D);
glBegin(GL_QUADS);
glTexCoord2d(0, 0);
glxVertex3v(origin);
glTexCoord2d(0, th);
glxVertex3v(origin.Plus(projUp.ScaledBy(mmh)));
glTexCoord2d(tw, th);
glxVertex3v(origin.Plus(projRight.ScaledBy(mmw).Plus(
projUp. ScaledBy(mmh))));
glTexCoord2d(tw, 0);
glxVertex3v(origin.Plus(projRight.ScaledBy(mmw)));
glEnd();
glDisable(GL_TEXTURE_2D);
}
glxDepthRangeOffset(0);
// Nasty case when we're reloading the imported files; could be that
// we get an error, so a dialog pops up, and a message loop starts, and
// we have to get called to paint ourselves. If the sketch is screwed
// up, then we could trigger an oops trying to draw.
if(!SS.allConsistent) return;
// Let's use two lights, at the user-specified locations
GLfloat f;
glEnable(GL_LIGHT0);
f = (GLfloat)SS.lightIntensity[0];
GLfloat li0[] = { f, f, f, 1.0f };
glLightfv(GL_LIGHT0, GL_DIFFUSE, li0);
glLightfv(GL_LIGHT0, GL_SPECULAR, li0);
glEnable(GL_LIGHT1);
f = (GLfloat)SS.lightIntensity[1];
GLfloat li1[] = { f, f, f, 1.0f };
glLightfv(GL_LIGHT1, GL_DIFFUSE, li1);
glLightfv(GL_LIGHT1, GL_SPECULAR, li1);
Vector ld;
ld = VectorFromProjs(SS.lightDir[0]);
GLfloat ld0[4] = { (GLfloat)ld.x, (GLfloat)ld.y, (GLfloat)ld.z, 0 };
glLightfv(GL_LIGHT0, GL_POSITION, ld0);
ld = VectorFromProjs(SS.lightDir[1]);
GLfloat ld1[4] = { (GLfloat)ld.x, (GLfloat)ld.y, (GLfloat)ld.z, 0 };
glLightfv(GL_LIGHT1, GL_POSITION, ld1);
if(SS.drawBackFaces) {
// For debugging, draw the backs of the triangles in red, so that we
// notice when a shell is open
glLightModelf(GL_LIGHT_MODEL_TWO_SIDE, 1);
} else {
glLightModelf(GL_LIGHT_MODEL_TWO_SIDE, 0);
}
GLfloat ambient[4] = { (float)SS.ambientIntensity,
(float)SS.ambientIntensity,
(float)SS.ambientIntensity, 1 };
glLightModelfv(GL_LIGHT_MODEL_AMBIENT, ambient);
glxUnlockColor();
if(showSnapGrid && LockedInWorkplane()) {
hEntity he = ActiveWorkplane();
EntityBase *wrkpl = SK.GetEntity(he),
*norm = wrkpl->Normal();
Vector wu, wv, wn, wp;
wp = SK.GetEntity(wrkpl->point[0])->PointGetNum();
wu = norm->NormalU();
wv = norm->NormalV();
wn = norm->NormalN();
double g = SS.gridSpacing;
double umin = VERY_POSITIVE, umax = VERY_NEGATIVE,
vmin = VERY_POSITIVE, vmax = VERY_NEGATIVE;
int a;
for(a = 0; a < 4; a++) {
// Ideally, we would just do +/- half the width and height; but
// allow some extra slop for rounding.
Vector horiz = projRight.ScaledBy((0.6*width)/scale + 2*g),
vert = projUp. ScaledBy((0.6*height)/scale + 2*g);
if(a == 2 || a == 3) horiz = horiz.ScaledBy(-1);
if(a == 1 || a == 3) vert = vert. ScaledBy(-1);
Vector tp = horiz.Plus(vert).Minus(offset);
// Project the point into our grid plane, normal to the screen
// (not to the grid plane). If the plane is on edge then this is
// impossible so don't try to draw the grid.
bool parallel;
Vector tpp = Vector::AtIntersectionOfPlaneAndLine(
wn, wn.Dot(wp),
tp, tp.Plus(n),
¶llel);
if(parallel) goto nogrid;
tpp = tpp.Minus(wp);
double uu = tpp.Dot(wu),
vv = tpp.Dot(wv);
umin = min(uu, umin);
umax = max(uu, umax);
vmin = min(vv, vmin);
vmax = max(vv, vmax);
}
int i, j, i0, i1, j0, j1;
i0 = (int)(umin / g);
i1 = (int)(umax / g);
j0 = (int)(vmin / g);
j1 = (int)(vmax / g);
if(i0 > i1 || i1 - i0 > 400) goto nogrid;
if(j0 > j1 || j1 - j0 > 400) goto nogrid;
glLineWidth(1);
glxColorRGBa(Style::Color(Style::DATUM), 0.3);
glBegin(GL_LINES);
for(i = i0 + 1; i < i1; i++) {
glxVertex3v(wp.Plus(wu.ScaledBy(i*g)).Plus(wv.ScaledBy(j0*g)));
glxVertex3v(wp.Plus(wu.ScaledBy(i*g)).Plus(wv.ScaledBy(j1*g)));
}
for(j = j0 + 1; j < j1; j++) {
glxVertex3v(wp.Plus(wu.ScaledBy(i0*g)).Plus(wv.ScaledBy(j*g)));
glxVertex3v(wp.Plus(wu.ScaledBy(i1*g)).Plus(wv.ScaledBy(j*g)));
}
glEnd();
// Clear the depth buffer, so that the grid is at the very back of
// the Z order.
glClear(GL_DEPTH_BUFFER_BIT);
nogrid:;
}
// Draw the active group; this does stuff like the mesh and edges.
(SK.GetGroup(activeGroup))->Draw();
// Now draw the entities
if(showHdnLines) glDisable(GL_DEPTH_TEST);
Entity::DrawAll();
// Draw filled paths in all groups, when those filled paths were requested
// specially by assigning a style with a fill color, or when the filled
// paths are just being filled by default. This should go last, to make
// the transparency work.
Group *g;
for(g = SK.group.First(); g; g = SK.group.NextAfter(g)) {
if(!(g->IsVisible())) continue;
g->DrawFilledPaths();
}
glDisable(GL_DEPTH_TEST);
// Draw the constraints
for(i = 0; i < SK.constraint.n; i++) {
SK.constraint.elem[i].Draw();
}
// Draw the traced path, if one exists
glLineWidth(Style::Width(Style::ANALYZE));
glxColorRGB(Style::Color(Style::ANALYZE));
SContour *sc = &(SS.traced.path);
glBegin(GL_LINE_STRIP);
for(i = 0; i < sc->l.n; i++) {
glxVertex3v(sc->l.elem[i].p);
}
glEnd();
// And the naked edges, if the user did Analyze -> Show Naked Edges.
glLineWidth(Style::Width(Style::DRAW_ERROR));
glxColorRGB(Style::Color(Style::DRAW_ERROR));
glxDrawEdges(&(SS.nakedEdges), true);
// Then redraw whatever the mouse is hovering over, highlighted.
glDisable(GL_DEPTH_TEST);
glxLockColorTo(Style::Color(Style::HOVERED));
hover.Draw();
// And finally draw the selection, same mechanism.
glxLockColorTo(Style::Color(Style::SELECTED));
for(Selection *s = selection.First(); s; s = selection.NextAfter(s)) {
s->Draw();
}
glxUnlockColor();
// If a marquee selection is in progress, then draw the selection
// rectangle, as an outline and a transparent fill.
if(pending.operation == DRAGGING_MARQUEE) {
Point2d begin = ProjectPoint(orig.marqueePoint);
double xmin = min(orig.mouse.x, begin.x),
xmax = max(orig.mouse.x, begin.x),
ymin = min(orig.mouse.y, begin.y),
ymax = max(orig.mouse.y, begin.y);
Vector tl = UnProjectPoint(Point2d::From(xmin, ymin)),
tr = UnProjectPoint(Point2d::From(xmax, ymin)),
br = UnProjectPoint(Point2d::From(xmax, ymax)),
bl = UnProjectPoint(Point2d::From(xmin, ymax));
glLineWidth((GLfloat)1.3);
glxColorRGB(Style::Color(Style::HOVERED));
glBegin(GL_LINE_LOOP);
glxVertex3v(tl);
glxVertex3v(tr);
glxVertex3v(br);
glxVertex3v(bl);
glEnd();
glxColorRGBa(Style::Color(Style::HOVERED), 0.10);
glBegin(GL_QUADS);
glxVertex3v(tl);
glxVertex3v(tr);
glxVertex3v(br);
glxVertex3v(bl);
glEnd();
}
// An extra line, used to indicate the origin when rotating within the
// plane of the monitor.
if(SS.extraLine.draw) {
glLineWidth(1);
glxLockColorTo(Style::Color(Style::DATUM));
glBegin(GL_LINES);
glxVertex3v(SS.extraLine.ptA);
glxVertex3v(SS.extraLine.ptB);
glEnd();
}
// A note to indicate the origin in the just-exported file.
if(SS.justExportedInfo.draw) {
glxColorRGB(Style::Color(Style::DATUM));
Vector p = SS.justExportedInfo.pt,
u = SS.justExportedInfo.u,
v = SS.justExportedInfo.v;
glLineWidth(1.5);
glBegin(GL_LINES);
glxVertex3v(p.Plus(u.WithMagnitude(-15/scale)));
glxVertex3v(p.Plus(u.WithMagnitude(30/scale)));
glxVertex3v(p.Plus(v.WithMagnitude(-15/scale)));
glxVertex3v(p.Plus(v.WithMagnitude(30/scale)));
glEnd();
glxWriteText("(x, y) = (0, 0) for file just exported",
DEFAULT_TEXT_HEIGHT,
p.Plus(u.ScaledBy(10/scale)).Plus(v.ScaledBy(10/scale)),
u, v, NULL, NULL);
glxWriteText("press Esc to clear this message",
DEFAULT_TEXT_HEIGHT,
p.Plus(u.ScaledBy(40/scale)).Plus(
v.ScaledBy(-(DEFAULT_TEXT_HEIGHT)/scale)),
u, v, NULL, NULL);
}
// And finally the toolbar.
if(SS.showToolbar) {
ToolbarDraw();
}
}