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moved all projection-related parameters to a special struct; another copy of that struct created for rug

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Zeno Rogue
2020-04-17 00:53:58 +02:00
parent f8cbf67a8e
commit 0472bf764f
29 changed files with 580 additions and 562 deletions
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92
drawing.cpp
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@@ -264,13 +264,13 @@ void add1(const hyperpoint& H) {
}
bool is_behind(const hyperpoint& H) {
return pmodel == mdDisk && (hyperbolic ? H[2] >= 0 : true) && (nonisotropic ? false : vid.alpha + H[2] <= BEHIND_LIMIT);
return pmodel == mdDisk && (hyperbolic ? H[2] >= 0 : true) && (nonisotropic ? false : pconf.alpha + H[2] <= BEHIND_LIMIT);
}
hyperpoint be_just_on_view(const hyperpoint& H1, const hyperpoint &H2) {
// H1[2] * t + H2[2] * (1-t) == BEHIND_LIMIT - vid.alpha
// H2[2]- BEHIND_LIMIT + vid.alpha = t * (H2[2] - H1[2])
ld t = (H2[2] - BEHIND_LIMIT + vid.alpha) / (H2[2] - H1[2]);
// H1[2] * t + H2[2] * (1-t) == BEHIND_LIMIT - pconf.alpha
// H2[2]- BEHIND_LIMIT + pconf.alpha = t * (H2[2] - H1[2])
ld t = (H2[2] - BEHIND_LIMIT + pconf.alpha) / (H2[2] - H1[2]);
return H1 * t + H2 * (1-t);
}
@@ -291,14 +291,14 @@ EX bool two_sided_model() {
if(pmodel == mdDisk) return sphere;
if(pmodel == mdHemisphere) return true;
if(pmodel == mdRotatedHyperboles) return true;
if(pmodel == mdSpiral && models::spiral_cone < 360) return true;
if(pmodel == mdSpiral && pconf.spiral_cone < 360) return true;
return false;
}
EX int get_side(const hyperpoint& H) {
if(pmodel == mdDisk && sphere) {
double curnorm = H[0]*H[0]+H[1]*H[1]+H[2]*H[2];
double horizon = curnorm / vid.alpha;
double horizon = curnorm / pconf.alpha;
return (H[2] <= -horizon) ? -1 : 1;
}
if(pmodel == mdRotatedHyperboles)
@@ -312,7 +312,7 @@ EX int get_side(const hyperpoint& H) {
applymodel(H, res);
return res[2] < 0 ? -1 : 1;
}
if(pmodel == mdSpiral && models::spiral_cone < 360) {
if(pmodel == mdSpiral && pconf.spiral_cone < 360) {
return cone_side(H);
}
return 0;
@@ -336,13 +336,13 @@ void fixpoint(glvertex& hscr, hyperpoint H) {
}
hyperpoint Hscr;
applymodel(good, Hscr);
hscr = glhr::makevertex(Hscr[0]*current_display->radius, Hscr[1]*current_display->radius*vid.stretch, Hscr[2]*current_display->radius);
hscr = glhr::makevertex(Hscr[0]*current_display->radius, Hscr[1]*current_display->radius*pconf.stretch, Hscr[2]*current_display->radius);
}
void addpoint(const hyperpoint& H) {
if(true) {
ld z = current_display->radius;
// if(vid.alpha + H[2] <= BEHIND_LIMIT && pmodel == mdDisk) poly_flags |= POLY_BEHIND;
// if(pconf.alpha + H[2] <= BEHIND_LIMIT && pmodel == mdDisk) poly_flags |= POLY_BEHIND;
if(spherespecial) {
@@ -352,7 +352,7 @@ void addpoint(const hyperpoint& H) {
}
else if(sphere && (poly_flags & POLY_ISSIDE)) {
double curnorm = H[0]*H[0]+H[1]*H[1]+H[2]*H[2];
double horizon = curnorm / vid.alpha;
double horizon = curnorm / pconf.alpha;
poly_flags |= POLY_NOTINFRONT;
if(last_infront && nif_error_in(glcoords.back()[0], glcoords.back()[1], H[0], H[1]))
poly_flags |= POLY_NIF_ERROR;
@@ -360,8 +360,8 @@ void addpoint(const hyperpoint& H) {
last_infront = true;
z *=
(sqrt(curnorm - horizon*horizon) / (vid.alpha - horizon)) /
(sqrt(curnorm - H[2]*H[2]) / (vid.alpha+H[2]));
(sqrt(curnorm - horizon*horizon) / (pconf.alpha - horizon)) /
(sqrt(curnorm - H[2]*H[2]) / (pconf.alpha+H[2]));
}
else {
poly_flags |= POLY_NOTINFRONT;
@@ -387,12 +387,12 @@ void addpoint(const hyperpoint& H) {
}
if(GDIM == 2) {
for(int i=0; i<3; i++) Hscr[i] *= z;
Hscr[1] *= vid.stretch;
Hscr[1] *= pconf.stretch;
}
else {
Hscr[0] *= z;
Hscr[1] *= z * vid.stretch;
Hscr[2] = 1 - 2 * (-Hscr[2] - models::clip_min) / (models::clip_max - models::clip_min);
Hscr[1] *= z * pconf.stretch;
Hscr[2] = 1 - 2 * (-Hscr[2] - pconf.clip_min) / (pconf.clip_max - pconf.clip_min);
}
add1(Hscr);
}
@@ -484,11 +484,11 @@ void addpoly(const transmatrix& V, const vector<glvertex> &tab, int ofs, int cnt
/*
hyperpoint Hscr;
applymodel(goodpoint, Hscr);
glcoords.push_back(make_array<GLfloat>(Hscr[0]*current_display->radius+10, Hscr[1]*current_display->radius*vid.stretch, Hscr[2]*vid.radius));
glcoords.push_back(make_array<GLfloat>(Hscr[0]*current_display->radius, Hscr[1]*current_display->radius*vid.stretch+10, Hscr[2]*vid.radius));
glcoords.push_back(make_array<GLfloat>(Hscr[0]*current_display->radius-10, Hscr[1]*current_display->radius*vid.stretch, Hscr[2]*vid.radius));
glcoords.push_back(make_array<GLfloat>(Hscr[0]*current_display->radius, Hscr[1]*current_display->radius*vid.stretch-10, Hscr[2]*vid.radius));
glcoords.push_back(make_array<GLfloat>(Hscr[0]*current_display->radius+10, Hscr[1]*current_display->radius*vid.stretch, Hscr[2]*vid.radius)); */
glcoords.push_back(make_array<GLfloat>(Hscr[0]*current_display->radius+10, Hscr[1]*current_display->radius*pconf.stretch, Hscr[2]*vid.radius));
glcoords.push_back(make_array<GLfloat>(Hscr[0]*current_display->radius, Hscr[1]*current_display->radius*pconf.stretch+10, Hscr[2]*vid.radius));
glcoords.push_back(make_array<GLfloat>(Hscr[0]*current_display->radius-10, Hscr[1]*current_display->radius*pconf.stretch, Hscr[2]*vid.radius));
glcoords.push_back(make_array<GLfloat>(Hscr[0]*current_display->radius, Hscr[1]*current_display->radius*pconf.stretch-10, Hscr[2]*vid.radius));
glcoords.push_back(make_array<GLfloat>(Hscr[0]*current_display->radius+10, Hscr[1]*current_display->radius*pconf.stretch, Hscr[2]*vid.radius)); */
}
}
@@ -717,7 +717,7 @@ EX ld scale_at(const transmatrix& T) {
EX ld linewidthat(const hyperpoint& h) {
if(!(vid.antialias & AA_LINEWIDTH)) return 1;
else if(hyperbolic && pmodel == mdDisk && vid.alpha == 1 && !ISWEB) {
else if(hyperbolic && pmodel == mdDisk && pconf.alpha == 1 && !ISWEB) {
double dz = h[LDIM];
if(dz < 1) return 1;
else {
@@ -752,7 +752,7 @@ vector<ld> periods;
ld period_at(ld y) {
ld m = current_display->radius;
y /= (m * vid.stretch);
y /= (m * pconf.stretch);
switch(pmodel) {
case mdBand:
@@ -762,8 +762,8 @@ ld period_at(ld y) {
case mdMollweide:
return m * 2 * sqrt(1 - y*y*4);
case mdCollignon: {
if(vid.collignon_reflected && y > 0) y = -y;
y += signed_sqrt(vid.collignon_parameter);
if(pconf.collignon_reflected && y > 0) y = -y;
y += signed_sqrt(pconf.collignon_parameter);
return abs(m*y*2/1.2);
}
default:
@@ -787,7 +787,7 @@ void adjust(bool tinf) {
ld cmin = -chypot/2, cmax = chypot/2, dmin = -chypot, dmax = chypot;
ld z = vid.stretch * current_display->radius;
ld z = pconf.stretch * current_display->radius;
switch(pmodel) {
case mdSinusoidal: case mdBandEquidistant: case mdMollweide:
@@ -799,9 +799,9 @@ void adjust(bool tinf) {
break;
case mdCollignon:
dmin = z * (signed_sqrt(vid.collignon_parameter - 1) - signed_sqrt(vid.collignon_parameter));
if(vid.collignon_reflected) dmax = -dmin;
else dmax = z * (signed_sqrt(vid.collignon_parameter + 1) - signed_sqrt(vid.collignon_parameter));
dmin = z * (signed_sqrt(pconf.collignon_parameter - 1) - signed_sqrt(pconf.collignon_parameter));
if(pconf.collignon_reflected) dmax = -dmin;
else dmax = z * (signed_sqrt(pconf.collignon_parameter + 1) - signed_sqrt(pconf.collignon_parameter));
break;
default: ;
@@ -891,7 +891,7 @@ void compute_side_by_centerin(dqi_poly *p, bool& nofill) {
else
nofill = true;
}
applymodel(h1, hscr); hscr[0] *= current_display->radius; hscr[1] *= current_display->radius * vid.stretch;
applymodel(h1, hscr); hscr[0] *= current_display->radius; hscr[1] *= current_display->radius * pconf.stretch;
for(int i=0; i<isize(glcoords)-1; i++) {
double x1 = glcoords[i][0] - hscr[0];
double y1 = glcoords[i][1] - hscr[1];
@@ -916,11 +916,11 @@ void compute_side_by_centerin(dqi_poly *p, bool& nofill) {
/*
if(poly_flags & POLY_BADCENTERIN) {
glcoords.push_back(glhr::makevertex(hscr[0]+10, hscr[1]*vid.stretch, hscr[2]));
glcoords.push_back(glhr::makevertex(hscr[0], hscr[1]*vid.stretch+10, hscr[2]));
glcoords.push_back(glhr::makevertex(hscr[0]-10, hscr[1]*vid.stretch, hscr[2]));
glcoords.push_back(glhr::makevertex(hscr[0], hscr[1]*vid.stretch-10, hscr[2]));
glcoords.push_back(glhr::makevertex(hscr[0]+10, hscr[1]*vid.stretch, hscr[2]));
glcoords.push_back(glhr::makevertex(hscr[0]+10, hscr[1]*pconf.stretch, hscr[2]));
glcoords.push_back(glhr::makevertex(hscr[0], hscr[1]*pconf.stretch+10, hscr[2]));
glcoords.push_back(glhr::makevertex(hscr[0]-10, hscr[1]*pconf.stretch, hscr[2]));
glcoords.push_back(glhr::makevertex(hscr[0], hscr[1]*pconf.stretch-10, hscr[2]));
glcoords.push_back(glhr::makevertex(hscr[0]+10, hscr[1]*pconf.stretch, hscr[2]));
} */
}
@@ -1432,7 +1432,7 @@ void dqi_poly::draw() {
for(int j=0; j<MAX_PHASE; j++) {
twopoint_sphere_flips = j;
hyperpoint h2; applymodel(h1, h2);
glvertex h = glhr::pointtogl(h2 * current_display->radius); h[1] *= vid.stretch;
glvertex h = glhr::pointtogl(h2 * current_display->radius); h[1] *= pconf.stretch;
if(i == 0)
phases[j].push_back(h);
else {
@@ -1460,7 +1460,7 @@ void dqi_poly::draw() {
for(int i=0; i<cnt; i++) {
hyperpoint h1 = V * glhr::gltopoint((*tab)[offset+i]);
hyperpoint mh1; applymodel(h1, mh1); mh1[1] *= vid.stretch;
hyperpoint mh1; applymodel(h1, mh1); mh1[1] *= pconf.stretch;
phases[cpha].push_back(glhr::pointtogl(mh1 * current_display->radius));
// check if the i-th edge intersects the boundary of the ellipse
@@ -1476,7 +1476,7 @@ void dqi_poly::draw() {
if(c1 < 0) c1 = -c1, c2 = -c2;
hyperpoint h = ah1 * c1 + ah2 * c2;
h /= hypot_d(3, h);
if(h[2] < 0 && abs(h[0]) < sin(vid.twopoint_param)) cpha = 1-cpha, pha = 2;
if(h[2] < 0 && abs(h[0]) < sin(pconf.twopoint_param)) cpha = 1-cpha, pha = 2;
}
if(cpha == 1) pha = 0;
}
@@ -1532,7 +1532,7 @@ void dqi_poly::draw() {
last_infront = false;
addpoly(V, *tab, offset, cnt);
if(!(sphere && vid.alpha < .9)) if(pmodel != mdJoukowsky) if(!(flags & POLY_ALWAYS_IN)) for(int i=1; i<isize(glcoords); i++) {
if(!(sphere && pconf.alpha < .9)) if(pmodel != mdJoukowsky) if(!(flags & POLY_ALWAYS_IN)) for(int i=1; i<isize(glcoords); i++) {
ld dx = glcoords[i][0] - glcoords[i-1][0];
ld dy = glcoords[i][1] - glcoords[i-1][1];
if(dx > vid.xres * 2 || dy > vid.yres * 2) return;
@@ -1558,7 +1558,7 @@ void dqi_poly::draw() {
if(poly_flags & POLY_NIF_ERROR) return;
if(spherespecial == 1 && sphere && (poly_flags & POLY_INFRONT) && (poly_flags & POLY_NOTINFRONT) && vid.alpha <= 1) {
if(spherespecial == 1 && sphere && (poly_flags & POLY_INFRONT) && (poly_flags & POLY_NOTINFRONT) && pconf.alpha <= 1) {
bool around_center = false;
for(int i=0; i<isize(glcoords)-1; i++) {
double x1 = glcoords[i][0];
@@ -1576,9 +1576,9 @@ void dqi_poly::draw() {
bool can_have_inverse = false;
if(sphere && pmodel == mdDisk && (spherespecial > 0 || equi)) can_have_inverse = true;
if(pmodel == mdJoukowsky) can_have_inverse = true;
if(pmodel == mdJoukowskyInverted && vid.skiprope) can_have_inverse = true;
if(pmodel == mdDisk && hyperbolic && vid.alpha <= -1) can_have_inverse = true;
if(pmodel == mdSpiral && vid.skiprope) can_have_inverse = true;
if(pmodel == mdJoukowskyInverted && pconf.skiprope) can_have_inverse = true;
if(pmodel == mdDisk && hyperbolic && pconf.alpha <= -1) can_have_inverse = true;
if(pmodel == mdSpiral && pconf.skiprope) can_have_inverse = true;
if(pmodel == mdCentralInversion) can_have_inverse = true;
if(can_have_inverse && !(poly_flags & POLY_ISSIDE)) {
@@ -1593,7 +1593,7 @@ void dqi_poly::draw() {
}
if(poly_flags & POLY_INVERSE) {
if(curradius < vid.alpha - 1e-6) return;
if(curradius < pconf.alpha - 1e-6) return;
if(!sphere) return;
}
@@ -1622,7 +1622,7 @@ void dqi_poly::draw() {
ld h = atan2(glcoords[0][0], glcoords[0][1]);
for(int i=0; i<=360; i++) {
ld a = i * degree + h;
glcoords.push_back(glhr::makevertex(current_display->radius * sin(a), current_display->radius * vid.stretch * cos(a), 0));
glcoords.push_back(glhr::makevertex(current_display->radius * sin(a), current_display->radius * pconf.stretch * cos(a), 0));
}
poly_flags ^= POLY_INVERSE;
}
@@ -1855,7 +1855,7 @@ int qp[PMAX], qp0[PMAX];
color_t darken_color(color_t& color, bool outline) {
int alpha = color & 255;
if(sphere && pmodel == mdDisk && vid.alpha <= 1)
if(sphere && pmodel == mdDisk && pconf.alpha <= 1)
return 0;
else {
if(outline && alpha < 255)
@@ -2360,7 +2360,7 @@ EX void getcoord0(const hyperpoint& h, int& xc, int &yc, int &sc) {
hyperpoint hscr;
applymodel(h, hscr);
xc = current_display->xcenter + current_display->radius * hscr[0];
yc = current_display->ycenter + current_display->radius * vid.stretch * hscr[1];
yc = current_display->ycenter + current_display->radius * pconf.stretch * hscr[1];
sc = 0;
// EYETODO sc = vid.eye * current_display->radius * hscr[2];
}