X-Git-Url: https://fleuret.org/cgi-bin/gitweb/gitweb.cgi?a=blobdiff_plain;f=polygon.cc;h=9e55d80e179396cce8b7fa084c4938f37c15f022;hb=6fccc7a7c7b24476bafed5449150600a37c49b14;hp=75163cbe4ec6f60bb318d7c8098a87192e2082cd;hpb=ba46b057f3e2613a86f2dea7fa8022990482c735;p=universe.git

diff --git a/polygon.cc b/polygon.cc
index 75163cb..9e55d80 100644
--- a/polygon.cc
+++ b/polygon.cc
@@ -1,17 +1,6 @@
 
-////////////////////////////////////////////////////////////////////////////////
-// This program is free software; you can redistribute it and/or              //
-// modify it under the terms of the GNU General Public License                //
-// version 2 as published by the Free Software Foundation.                    //
-//                                                                            //
-// This program is distributed in the hope that it will be useful, but        //
-// WITHOUT ANY WARRANTY; without even the implied warranty of                 //
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU          //
-// General Public License for more details.                                   //
-//                                                                            //
-// Written and (C) by François Fleuret                                        //
-// Contact <francois.fleuret@epfl.ch> for comments & bug reports              //
-////////////////////////////////////////////////////////////////////////////////
+// Written and (C) by Francois Fleuret
+// Contact <francois.fleuret@idiap.ch> for comments & bug reports
 
 #include <cmath>
 #include "polygon.h"
@@ -58,14 +47,18 @@ Polygon *Polygon::clone() {
   return new Polygon(_mass, _red, _green, _blue, _relative_x, _relative_y, _nb_vertices);
 }
 
-void Polygon::print_fig(ostream &os) {
-  os << "2 2 0 1 0 7 50 -1 20 0.000 0 0 -1 0 0 " << _nb_vertices + 1 << endl;
-  os << "	";
-  for(int n = 0; n < _nb_vertices; n++) os << " " << int(_x[n]*10) << " " << int(_y[n]*10);
-  os << " " << int(_x[0]*10) << " " << int(_y[0]*10);
-  os << endl;
+#ifdef XFIG_SUPPORT
+void Polygon::color_xfig(XFigTracer *tracer) {
+  tracer->add_color(int(255 * _red), int(255 * _green), int(255 * _blue));
 }
 
+void Polygon::print_xfig(XFigTracer *tracer) {
+  tracer->draw_polygon(int(255 * _red), int(255 * _green), int(255 * _blue),
+                       _nb_vertices, _x, _y);
+}
+#endif
+
+#ifdef X11_SUPPORT
 void Polygon::draw(SimpleWindow *window) {
   window->color(_red, _green, _blue);
   int x[_nb_vertices], y[_nb_vertices];
@@ -83,8 +76,21 @@ void Polygon::draw_contours(SimpleWindow *window) {
     y[n] = int(_y[n]);
   }
   window->color(0.0, 0.0, 0.0);
-  for(int n = 0; n < _nb_vertices; n++)
+  // window->color(1.0, 1.0, 1.0);
+  for(int n = 0; n < _nb_vertices; n++) {
     window->draw_line(x[n], y[n], x[(n+1)%_nb_vertices], y[(n+1)%_nb_vertices]);
+  }
+}
+#endif
+
+void Polygon::draw(Canvas *canvas) {
+  canvas->set_drawing_color(_red, _green, _blue);
+  canvas->draw_polygon(1, _nb_vertices, _x, _y);
+}
+
+void Polygon::draw_contours(Canvas *canvas) {
+  canvas->set_drawing_color(0.0, 0.0, 0.0);
+  canvas->draw_polygon(0, _nb_vertices, _x, _y);
 }
 
 void Polygon::set_vertex(int k, scalar_t x, scalar_t y) {
@@ -157,7 +163,7 @@ void Polygon::triangularize(int &nt, int nb, int *index) {
                           _relative_x[index[(k+1)%nb]] - _relative_x[index[m]],
                           _relative_y[index[(k+1)%nb]] - _relative_y[index[m]]);
 
-        if(a1 * a2 > 0 && best_split < 0 || (abs(a1 - a2) < best_split)) {
+        if((a1 * a2 > 0 && best_split < 0) || (abs(a1 - a2) < best_split)) {
           best_n = n; best_m = m;
           best_split = abs(a1 - a2);
         }
@@ -189,7 +195,9 @@ void Polygon::initialize(int nb_polygons) {
 
   _nb_polygons = nb_polygons;
 
-  a = _relative_x[_nb_vertices - 1] * _relative_y[0] - _relative_x[0] * _relative_y[_nb_vertices - 1];
+  a = _relative_x[_nb_vertices - 1] * _relative_y[0]
+    - _relative_x[0] * _relative_y[_nb_vertices - 1];
+
   for(int n = 0; n < _nb_vertices - 1; n++)
     a += _relative_x[n] * _relative_y[n+1] - _relative_x[n+1] * _relative_y[n];
   a *= 0.5;
@@ -499,4 +507,3 @@ bool Polygon::collide(Polygon *p) {
 
   return false;
 }
-