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Commit ff8a089d authored by Kirill Terekhov's avatar Kirill Terekhov
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Some improvements for DrawGrad example

parent e495db52
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Examples/OldDrawGrid/main.cpp
View file @ ff8a089d
......@@ -91,6 +91,7 @@ char visualization_prompt[8192];
int visualization_prompt_active = 0;
Tag visualization_tag;
ElementType visualization_type;
bool visualization_smooth = false;
void printtext(const char * fmt, ... )
{
......@@ -745,6 +746,7 @@ class color_bar
std::vector<color_t> colors; //4 floats for each tick
std::string comment;
unsigned texture;
int samples;
public:
color_bar()
{
......@@ -791,14 +793,20 @@ public:
colors.push_back(color_t(0.45,0,0.55));
colors.push_back(color_t(0,0,0));
float * pixel_array = new float[1026*4];
samples = 2048;
float * pixel_array = new float[(samples+2)*4];
for(int q = 0; q < 1026; ++q)
for(int q = 0; q < samples+2; ++q)
{
float t = 1.0f*q/1025.f;
float t = 1.0f*q/static_cast<float>(samples+1);
color_t c = pick_color(t);
//countour lines
//if( ((q+1) % 64 == 0 || (q+1) % 64 == 63) && (q+1) < samples )
// c = pick_color(1-t) + color_t(0,2*t*(1-t),0);
pixel_array[(q)*4+0] = c.r();
pixel_array[(q)*4+1] = c.g();
pixel_array[(q)*4+2] = c.b();
......@@ -810,10 +818,10 @@ public:
pixel_array[2] = 0;
pixel_array[3] = 1;
pixel_array[1025*4+0] = 0;
pixel_array[1025*4+1] = 1;
pixel_array[1025*4+2] = 0;
pixel_array[1025*4+3] = 1;
pixel_array[(samples+1)*4+0] = 0;
pixel_array[(samples+1)*4+1] = 1;
pixel_array[(samples+1)*4+2] = 0;
pixel_array[(samples+1)*4+3] = 1;
......@@ -823,7 +831,7 @@ public:
glBindTexture(GL_TEXTURE_1D,texture);
glPixelStorei(GL_UNPACK_ALIGNMENT,1);
glTexImage1D(GL_TEXTURE_1D,0,4,1026,1,GL_RGBA,GL_FLOAT,pixel_array);
glTexImage1D(GL_TEXTURE_1D,0,4,samples+2,1,GL_RGBA,GL_FLOAT,pixel_array);
std::cout << "Created texture " << texture << std::endl;
......@@ -870,7 +878,7 @@ public:
}
double pick_texture(double value)
{
const double eps = 1.0/1024.0;
double eps = 1.0/static_cast<double>(samples);
return (value-min)/(max-min)*(1-2*eps) + eps;
//return std::max(std::min((value-min)/(max-min),0.99),0.01);
}
......@@ -903,12 +911,15 @@ public:
*/
glEnd();
UnbindTexture();
int tickmarks = 11;
glColor4f(0,0,0,1);
for(int i = 0; i < ticks.size(); ++i)
for(int i = 0; i < tickmarks; ++i)
{
glRasterPos2f(text_pos,bottom+ticks[i]*(top-bottom));
printtext("%f",min+ticks[i]*(max-min));
float t = 1.0f*i/static_cast<float>(tickmarks-1);
glRasterPos2f(text_pos,bottom+t*(top-bottom));
printtext("%g",min+t*(max-min));
}
if( comment != "")
{
......@@ -924,9 +935,10 @@ public:
glEnd();
glBegin(GL_LINES);
for(int i = 0; i < ticks.size(); ++i)
for(int i = 0; i < tickmarks; ++i)
{
float pos = bottom+ticks[i]*(top-bottom);
float t = 1.0f*i/static_cast<float>(tickmarks-1);
float pos = bottom+t*(top-bottom);
glVertex2f(left,pos);
glVertex2f(left+(right-left)*0.2,pos);
......@@ -2286,7 +2298,10 @@ public:
for(INMOST_DATA_ENUM_TYPE q = 0; q < clv.size(); q++)
{
//f.add_color(CommonColorBar->pick_color(clv[q]));
f.add_texcoord(CommonColorBar->pick_texture(clv[q]));
if( visualization_type == CELL && !visualization_smooth )
f.add_texcoord(CommonColorBar->pick_texture(cells[k].RealDF(visualization_tag)));
else
f.add_texcoord(CommonColorBar->pick_texture(clv[q]));
}
}
f.compute_center();
......@@ -2316,26 +2331,26 @@ public:
cnt[1] /= static_cast<Storage::real>(cl.size()/3);
cnt[2] /= static_cast<Storage::real>(cl.size()/3);
cntv /= static_cast<Storage::real>(cl.size()/3);
for(INMOST_DATA_ENUM_TYPE q = 0; q < cl.size(); q+=3)
if( !visualization_tag.isValid() )
{
if( visualization_tag.isValid() )
for(INMOST_DATA_ENUM_TYPE q = 0; q < cl.size(); q+=3)
{
//CommonColorBar->pick_color(cntv).set_color();
glTexCoord1d(CommonColorBar->pick_texture(cntv));
glVertex3dv(cnt);
glVertex3dv(&cl[q]);
glVertex3dv(&cl[(q+3)%cl.size()]);
}
glVertex3dv(cnt);
if( visualization_tag.isValid() )
{
//CommonColorBar->pick_color(clv[q/3]).set_color();
}
else
{
for(INMOST_DATA_ENUM_TYPE q = 0; q < cl.size(); q+=3)
{
glTexCoord1d(CommonColorBar->pick_texture(cntv));
glVertex3dv(cnt);
glTexCoord1d(CommonColorBar->pick_texture(clv[q/3]));
}
glVertex3dv(&cl[q]);
if( visualization_tag.isValid() )
{
//CommonColorBar.pick_color(clv[(q/3+1)%clv.size()]).set_color();
glVertex3dv(&cl[q]);
glTexCoord1d(CommonColorBar->pick_texture(clv[(q/3+1)%clv.size()]));
glVertex3dv(&cl[(q+3)%cl.size()]);
}
glVertex3dv(&cl[(q+3)%cl.size()]);
}
}
glEnd();
......@@ -2418,7 +2433,10 @@ public:
if( visualization_tag.isValid() )
{
//f.add_color(CommonColorBar->pick_color(nodes[q].RealDF(visualization_tag)));
f.add_texcoord(CommonColorBar->pick_texture(nodes[q].RealDF(visualization_tag)));
if( visualization_type == CELL && !visualization_smooth )
f.add_texcoord(CommonColorBar->pick_texture(Face(mm,faces[k]).BackCell().RealDF(visualization_tag)));
else
f.add_texcoord(CommonColorBar->pick_texture(nodes[q].RealDF(visualization_tag)));
}
}
f.compute_center();
......@@ -2449,7 +2467,10 @@ public:
if( visualization_tag.isValid() )
{
//f.add_color(CommonColorBar->pick_color(nodes[q].RealDF(visualization_tag)));
f.add_texcoord(CommonColorBar->pick_texture(nodes[q].RealDF(visualization_tag)));
if( visualization_type == CELL && !visualization_smooth )
f.add_texcoord(CommonColorBar->pick_texture(Face(mm,faces[k]).BackCell().RealDF(visualization_tag)));
else
f.add_texcoord(CommonColorBar->pick_texture(nodes[q].RealDF(visualization_tag)));
}
}
if( nodepos[q] != nodepos[(q+1)%nodes.size()] )
......@@ -2464,6 +2485,7 @@ public:
{
//f.add_color(CommonColorBar->pick_color(compute_value(nodes[q],nodes[(q+1)%nodes.size()],&sp0[0],&sp1[0],node)));
f.add_texcoord(CommonColorBar->pick_texture(compute_value(nodes[q],nodes[(q+1)%nodes.size()],&sp0[0],&sp1[0],node)));
//f.add_texcoord(CommonColorBar->pick_texture(Face(mm,faces[k]).BackCell().RealDF(visualization_tag)));
}
}
}
......@@ -2484,31 +2506,38 @@ public:
Storage::real_array coords = nodes[0].Coords();
Storage::real dot0 = n[0]*(coords[0]-p[0])+n[1]*(coords[1]-p[1])+n[2]*(coords[2]-p[2]);
if( dot0 <= 0.0 ) state = CLIP_FACE_INSIDE; else state = CLIP_FACE_OUTSIDE;
for(INMOST_DATA_ENUM_TYPE q = 1; q < nodes.size(); ++q)
if( state == CLIP_FACE_INSIDE )
{
coords = nodes[q].Coords();
Storage::real dot = n[0]*(coords[0]-p[0])+n[1]*(coords[1]-p[1])+n[2]*(coords[2]-p[2]);
if( dot*dot0 <= 0.0 )
for(INMOST_DATA_ENUM_TYPE q = 1; q < nodes.size(); ++q)
{
state = CLIP_FACE_INTERSECT;
break;
coords = nodes[q].Coords();
Storage::real dot = n[0]*(coords[0]-p[0])+n[1]*(coords[1]-p[1])+n[2]*(coords[2]-p[2]);
if( dot*dot0 <= 0.0 )
{
state = CLIP_FACE_INTERSECT;
break;
}
}
}
if( state == CLIP_FACE_INSIDE )
{
ElementArray<Node> nodes = Face(mm,faces[k])->getNodes();
glBegin(GL_POLYGON);
for(INMOST_DATA_ENUM_TYPE q = 0; q < nodes.size(); q++)
if( state == CLIP_FACE_INSIDE )
{
if( visualization_tag.isValid() )
ElementArray<Node> nodes = Face(mm,faces[k])->getNodes();
glBegin(GL_POLYGON);
if( visualization_tag.isValid() )
{
//CommonColorBar->pick_color(nodes[q].RealDF(visualization_tag)).set_color();
glTexCoord1f(CommonColorBar->pick_texture(nodes[q].RealDF(visualization_tag)));
for(INMOST_DATA_ENUM_TYPE q = 0; q < nodes.size(); q++)
{
CommonColorBar->pick_color(nodes[q].RealDF(visualization_tag)).set_color();
glTexCoord1f(CommonColorBar->pick_texture(nodes[q].RealDF(visualization_tag)));
glVertex3dv(&nodes[q].Coords()[0]);
}
}
glVertex3dv(&nodes[q].Coords()[0]);
else
{
for(INMOST_DATA_ENUM_TYPE q = 0; q < nodes.size(); q++)
glVertex3dv(&nodes[q].Coords()[0]);
}
glEnd();
}
glEnd();
}
mm->IntegerDF(faces[k],clip_state) = state;
}
......@@ -3512,11 +3541,14 @@ void draw_screen()
INMOST_DATA_ENUM_TYPE opace = !planecontrol ? std::max<INMOST_DATA_ENUM_TYPE>(1,std::min<INMOST_DATA_ENUM_TYPE>(15,oclipper->size()/100)) : 1;
INMOST_DATA_ENUM_TYPE bpace = std::max<INMOST_DATA_ENUM_TYPE>(1,std::min<INMOST_DATA_ENUM_TYPE>(15,bclipper->size()/100));
glColor4f(0.6,0.6,0.6,1);
if( visualization_tag.isValid() ) CommonColorBar->BindTexture();
oclipper->draw_clip(opace);
bclipper->draw_clip(bpace);
if( visualization_tag.isValid() ) CommonColorBar->UnbindTexture();
glColor4f(0,0,0,1);
oclipper->draw_clip_edges(opace);
bclipper->draw_clip_edges(bpace);
}
else
{
......@@ -3847,7 +3879,16 @@ void draw_screen()
if( stype == "node" ) visualization_type = NODE;
else if ( stype == "edge" ) visualization_type = EDGE;
else if ( stype == "face" ) visualization_type = FACE;
else if ( stype == "cell" ) visualization_type = CELL;
else if ( stype == "cell" )
{
visualization_type = CELL;
visualization_smooth = false;
}
else if ( stype == "smooth_cell" )
{
visualization_type = CELL;
visualization_smooth = true;
}
if( visualization_type != NONE )
{
......@@ -3916,7 +3957,7 @@ void draw_screen()
}
else printf("tag %s is not defined on element type %s\n",name, typen);
}
else printf("do not understand element type %s, should be: node, edge, face, cell\n",typen);
else printf("do not understand element type %s, should be: node, edge, face, cell, smooth_cell\n",typen);
}
else printf("component is out of range for tag %s of size %u\n",name,source_tag.GetSize());
}
......
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