1 files changed, 170 insertions, 0 deletions
diff --git a/src/3rdparty/2geom/src/toys/sweeper-toy.cpp b/src/3rdparty/2geom/src/toys/sweeper-toy.cpp
new file mode 100644
index 0000000..5ca28db
--- /dev/null
+++ b/src/3rdparty/2geom/src/toys/sweeper-toy.cpp
@@ -0,0 +1,170 @@
+#include <iostream>
+#include <2geom/path.h>
+#include <2geom/svg-path-parser.h>
+#include <2geom/path-intersection.h>
+#include <2geom/basic-intersection.h>
+#include <2geom/pathvector.h>
+#include <2geom/exception.h>
+
+
+#include <cstdlib>
+#include <set>
+#include <vector>
+#include <algorithm>
+
+#include <toys/path-cairo.h>
+#include <toys/toy-framework-2.h>
+#include <2geom/bezier-to-sbasis.h>
+#include <2geom/ord.h>
+
+using namespace Geom;
+using namespace std;
+
+#include "sweeper.cpp"
+
+double exp_rescale(double x){ return pow(10, x);}
+std::string exp_formatter(double x){ return default_formatter(exp_rescale(x));}
+
+
+class SweeperToy: public Toy {
+    int nb_paths;
+    int nb_curves_per_path;
+    int degree;
+
+    std::vector<PointSetHandle> paths_handles;
+    std::vector<Slider> sliders;
+    Sweeper sweeper;
+
+    void drawTile( cairo_t *cr, unsigned idx , unsigned line_width=1){
+        if (idx>=sweeper.tiles_data.size()) return;
+        Rect box;
+        box = sweeper.tiles_data[idx].fbox;
+        box[X].expandBy(1);
+        cairo_rectangle(cr, box);
+        cairo_set_source_rgba (cr, 1., 0., 0., .5);
+        cairo_set_line_width (cr, line_width);
+        cairo_stroke(cr);
+        box = sweeper.tiles_data[idx].tbox;
+        box[Y].expandBy(1);
+        cairo_rectangle(cr, box);
+        cairo_set_source_rgba (cr, 0., 0., 1., .5);
+        cairo_set_line_width (cr, line_width);
+        cairo_stroke(cr);
+
+        Sweeper::Tile tile = sweeper.tiles_data[idx];
+        D2<SBasis> p = sweeper.paths[tile.path][tile.curve].toSBasis();
+        Interval dom = Interval(tile.f,tile.t);
+        cairo_set_source_rgba (cr, 0., 1., .5, .8);
+        p = portion(p, dom);
+        cairo_d2_sb(cr, p);
+        cairo_set_line_width (cr, line_width);
+        cairo_stroke(cr);
+    }
+
+    void drawTiles( cairo_t *cr ){
+        for (unsigned i=0; i<sweeper.tiles_data.size(); i++){
+            drawTile( cr, i );
+        }
+
+//         for (unsigned i=0; i<sweeper.vtxboxes.size(); i++){
+//             cairo_rectangle(cr, sweeper.vtxboxes[i]);
+//             cairo_set_source_rgba (cr, 0., 0., 0, 1);
+//             cairo_set_line_width (cr, 1);
+//             cairo_stroke(cr);
+//         }
+    }
+
+    void enlightTile( cairo_t *cr, unsigned idx){
+        drawTile(cr, idx, 4);
+    }
+
+    void draw(cairo_t *cr, std::ostringstream *notify, int width, int height, bool save, std::ostringstream *timer_stream) override {
+        cairo_set_source_rgba (cr, 0., 0., 0, 1);
+        cairo_set_line_width (cr, 1);
+
+        PathVector paths;
+        for (int i = 0; i < nb_paths; i++){
+            paths_handles[i].pts.back()=paths_handles[i].pts.front();
+            paths.push_back(Path(paths_handles[i].pts[0]));
+            for (unsigned j = 0; j+degree < paths_handles[i].size(); j+=degree){
+                D2<SBasis> c = handles_to_sbasis(paths_handles[i].pts.begin()+j, degree);
+                paths[i].append(c);
+            }
+            paths[i].close();
+        }
+        
+        //cairo_path(cr, paths);
+        cairo_set_source_rgba (cr, 0., 0., 0, 1);
+        cairo_set_line_width (cr, 1);
+        cairo_stroke(cr);
+
+        double tol = exp_rescale(sliders[3].value());
+    	Rect tolbytol( Point(50,110), Point(50,110) );
+    	tolbytol.expandBy( tol );
+        cairo_rectangle(cr, tolbytol);
+    	cairo_stroke(cr);
+
+        sweeper = Sweeper(paths,X, tol);
+       unsigned idx = (unsigned)(sliders[0].value()*(sweeper.tiles_data.size()-1));
+       drawTiles(cr);
+       enlightTile(cr, idx);
+
+        Toy::draw(cr, notify, width, height, save, timer_stream);
+    }
+
+    public:
+    SweeperToy(int paths, int curves_in_path, int degree) :
+        nb_paths(paths), nb_curves_per_path(curves_in_path), degree(degree) {
+        for (int i = 0; i < nb_paths; i++){
+            paths_handles.emplace_back();
+        }
+        for(int i = 0; i < nb_paths; i++){
+            for(int j = 0; j < (nb_curves_per_path*degree)+1; j++){
+                paths_handles[i].push_back(uniform()*400, 100+ uniform()*300);
+            }
+            handles.push_back(&paths_handles[i]);
+        }
+        sliders.emplace_back(0.0, 1, 0, 0.0, "intersection chooser");
+        sliders.emplace_back(0.0, 1, 0, 0.0, "ray chooser");
+        sliders.emplace_back(0.0, 1, 0, 0.0, "area chooser");
+        sliders.emplace_back(-5.0, 2, 0, 0.0, "tolerance chooser");
+        handles.push_back(&(sliders[0]));
+        handles.push_back(&(sliders[1]));
+        handles.push_back(&(sliders[2]));
+        handles.push_back(&(sliders[3]));
+        sliders[0].geometry(Point(50, 20), 250);
+        sliders[1].geometry(Point(50, 50), 250);
+        sliders[2].geometry(Point(50, 80), 250);
+        sliders[3].geometry(Point(50, 110), 250);
+		sliders[3].formatter(&exp_formatter);
+    }
+
+    void first_time(int /*argc*/, char** /*argv*/) override {
+
+    }
+};
+
+int main(int argc, char **argv) {
+    unsigned paths=10;
+    unsigned curves_in_path=3;
+    unsigned degree=1;
+    if(argc > 3)
+        sscanf(argv[3], "%d", &degree);
+    if(argc > 2)
+        sscanf(argv[2], "%d", &curves_in_path);
+    if(argc > 1)
+        sscanf(argv[1], "%d", &paths);
+    init(argc, argv, new SweeperToy(paths, curves_in_path, degree));
+    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=4:softtabstop=4:fileencoding=utf-8:textwidth=99 :