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#include <2geom/d2.h>
#include <2geom/sbasis.h>
#include <2geom/bezier-to-sbasis.h>
#include <toys/path-cairo.h>
#include <toys/toy-framework-2.h>
#include <time.h>
#include <vector>
#include <2geom/orphan-code/sbasis-of.h>
using std::vector;
using namespace Geom;
using namespace std;
#define SIZE 4
static void plot(cairo_t* cr, SBasis const &B,double vscale=1,double a=0,double b=1){
D2<SBasis> plot;
plot[0]=SBasis(Linear(150+a*300,150+b*300));
plot[1]=B*(-vscale);
plot[1]+=300;
cairo_d2_sb(cr, plot);
// cairo_stroke(cr);
}
static void plot(cairo_t* cr, SBasisOf<Interval> const &f, double vscale=1,double /*dx*/=.05, double a=0,double b=1){
cairo_save(cr);
#if 0
double t = a;
while (t<=b){
Interval i = f.valueAt(t);
std::cout<<i.min()<<","<<i.max()<<"\n";
draw_cross(cr, Geom::Point( 150+t*300, 300-i.min()*vscale ) );
draw_cross(cr, Geom::Point( 150+t*300, 300-i.max()*vscale ) );
t+=dx;
}
#endif
D2<SBasis> plot;
Path pth;
pth.setStitching(true);
SBasis fmin(f.size(), Linear());
SBasis fmax(f.size(), Linear());
for(unsigned i = 0; i < f.size(); i++) {
for(unsigned j = 0; j < 2; j++) {
fmin[i][j] = f[i][j].min();
fmax[i][j] = f[i][j].max();
}
}
plot[0]=SBasis(Linear(150+a*300,150+b*300));
plot[1]=fmin*(-vscale);
plot[1]+=300;
pth.append(plot);
plot[1]=fmax*(-vscale);
plot[1]+=300;
pth.append(reverse(plot));
cairo_path(cr, pth);
cairo_set_source_rgba(cr, 0, 0, 0, 0.1);
cairo_fill(cr);
cairo_restore(cr);
}
class SbOfInterval: public Toy {
unsigned size;
PointHandle adjuster_a[3*SIZE];
PointHandle adjuster_b[3*SIZE];
void drawSliders(cairo_t *cr, PointHandle adjuster[], double y_min, double y_max){
for (unsigned i=0; i < size; i++){
cairo_move_to(cr, Geom::Point(adjuster[3*i].pos[X],y_min));
cairo_line_to(cr, Geom::Point(adjuster[3*i].pos[X],y_max));
}
}
void drawIntervals(cairo_t *cr, PointHandle adjuster[], double /*x*/, double /*dx*/, double /*y_min*/, double /*y_max*/){
for (unsigned i=0; i < size; i++){
cairo_move_to(cr, adjuster[3*i+1].pos);
cairo_line_to(cr, adjuster[3*i+2].pos);
}
}
void setupSliders(PointHandle adjuster[], double x, double dx, double y_min, double y_max){
for (unsigned i=0; i < size; i++){
for (unsigned j=0; j < 3; j++){
adjuster[3*i+j].pos[X] = x + dx*i;
if (adjuster[3*i+j].pos[Y] < y_min) adjuster[3*i+j].pos[Y] = y_min;
if (adjuster[3*i+j].pos[Y] > y_max) adjuster[3*i+j].pos[Y] = y_max;
}
if (adjuster[3*i+1].pos[Y] < adjuster[3*i+2].pos[Y]) adjuster[3*i+1].pos[Y] = adjuster[3*i+2].pos[Y];
if (adjuster[3*i ].pos[Y] < adjuster[3*i+2].pos[Y]) adjuster[3*i ].pos[Y] = adjuster[3*i+2].pos[Y];
if (adjuster[3*i ].pos[Y] > adjuster[3*i+1].pos[Y]) adjuster[3*i ].pos[Y] = adjuster[3*i+1].pos[Y];
}
}
PointSetHandle hand;
void draw(cairo_t *cr, std::ostringstream *notify, int width, int height, bool save, std::ostringstream *timer_stream) override {
SBasisOf<Interval> f;
double min=150, max=450;
setupSliders(adjuster_a, 100, 15, min, max);
setupSliders(adjuster_b, 500, 15, min, max);
drawSliders(cr, adjuster_a, min, max);
drawSliders(cr, adjuster_b, min, max);
cairo_set_line_width (cr, 1);
cairo_set_source_rgba (cr, 0.2, 0.2, 0.2, 1);
cairo_stroke(cr);
drawIntervals(cr, adjuster_a, 100, 15, min, max);
drawIntervals(cr, adjuster_b, 500, 15, min, max);
cairo_set_line_width (cr, 3);
cairo_set_source_rgba (cr, 0.8, 0.2, 0.2, 1);
cairo_stroke(cr);
cairo_move_to(cr, Geom::Point(150,300));
cairo_line_to(cr, Geom::Point(450,300));
cairo_set_line_width (cr, 1);
cairo_set_source_rgba (cr, 0.2, 0.2, 0.2, 1);
cairo_stroke(cr);
for (unsigned i=0; i < size; i++){
double amin = (max+min)/2 - adjuster_a[3*i+1].pos[Y];
double amax = (max+min)/2 - adjuster_a[3*i+2].pos[Y];
Interval ai(amin*std::pow(4.,(int)i), amax*std::pow(4.,(int)i));
double bmin = (max+min)/2 - adjuster_b[3*i+1].pos[Y];
double bmax = (max+min)/2 - adjuster_b[3*i+2].pos[Y];
Interval bi(bmin*std::pow(4.,(int)i), bmax*std::pow(4.,(int)i));
f.push_back(LinearOf<Interval>(ai,bi));
}
SBasis f_dble(size, Linear());
for (unsigned i=0; i < size; i++){
double ai = (max+min)/2 - adjuster_a[3*i].pos[Y];
double bi = (max+min)/2 - adjuster_b[3*i].pos[Y];
f_dble[i] = Linear(ai*std::pow(4.,(int)i),bi*std::pow(4.,(int)i));
}
plot(cr,f_dble);
plot(cr,f);
cairo_set_source_rgba (cr, 0., 0., 0.8, 1);
cairo_stroke(cr);
Toy::draw(cr, notify, width, height, save,timer_stream);
}
public:
SbOfInterval(){
size=SIZE;
for(unsigned i=0; i < size; i++){
adjuster_a[3*i].pos[X] = 0;
adjuster_a[3*i].pos[Y] = 300;
adjuster_a[3*i+1].pos[X] = 0;
adjuster_a[3*i+1].pos[Y] = 350;
adjuster_a[3*i+2].pos[X] = 0;
adjuster_a[3*i+2].pos[Y] = 250;
adjuster_b[3*i].pos[X] = 0;
adjuster_b[3*i].pos[Y] = 300;
adjuster_b[3*i+1].pos[X] = 0;
adjuster_b[3*i+1].pos[Y] = 350;
adjuster_b[3*i+2].pos[X] = 0;
adjuster_b[3*i+2].pos[Y] = 250;
}
for(unsigned i = 0; i < size; i++) {
handles.push_back(&(adjuster_a[3*i]));
handles.push_back(&(adjuster_a[3*i+1]));
handles.push_back(&(adjuster_a[3*i+2]));
handles.push_back(&(adjuster_b[3*i]));
handles.push_back(&(adjuster_b[3*i+1]));
handles.push_back(&(adjuster_b[3*i+2]));
}
}
};
int main(int argc, char **argv) {
init(argc, argv, new SbOfInterval);
return 0;
}
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype = cpp:expandtab:shiftwidth = 4:tabstop = 8:softtabstop = 4:encoding = utf-8:textwidth = 99 :
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