From f3316f607300bf15664363b32429a24f6b053752 Mon Sep 17 00:00:00 2001
From: Christopher Tenter <christopher.tenter@rwth-aachen.de>
Date: Wed, 8 Apr 2015 12:59:52 +0000
Subject: [PATCH] add function to generate a random bspline curve

git-svn-id: http://www.openflipper.org/svnrepo/OpenFlipper/branches/Free@20552 383ad7c9-94d9-4d36-a494-682f7c89f535
---
 Plugin-PrimitivesGenerator/CMakeLists.txt     |  2 +-
 .../PrimitivesGenerator.cc                    | 50 +++++++++++++++++++
 .../PrimitivesGenerator.hh                    |  4 ++
 3 files changed, 55 insertions(+), 1 deletion(-)

diff --git a/Plugin-PrimitivesGenerator/CMakeLists.txt b/Plugin-PrimitivesGenerator/CMakeLists.txt
index cfc4862b2..03e57abf8 100644
--- a/Plugin-PrimitivesGenerator/CMakeLists.txt
+++ b/Plugin-PrimitivesGenerator/CMakeLists.txt
@@ -3,7 +3,7 @@ include (plugin)
 SET( CURRENT_PLUGIN_DEPS "")
 
 if (EXISTS ${CMAKE_SOURCE_DIR}/ObjectTypes/BSplineCurve)
-  add_definitions (-DENABLE_SKELETON_SUPPORT)
+  add_definitions (-DENABLE_BSPLINECURVE_SUPPORT)
 endif()
 
 if (EXISTS ${CMAKE_SOURCE_DIR}/ObjectTypes/BSplineSurface)
diff --git a/Plugin-PrimitivesGenerator/PrimitivesGenerator.cc b/Plugin-PrimitivesGenerator/PrimitivesGenerator.cc
index 59e8ca1eb..c172c9733 100644
--- a/Plugin-PrimitivesGenerator/PrimitivesGenerator.cc
+++ b/Plugin-PrimitivesGenerator/PrimitivesGenerator.cc
@@ -51,6 +51,10 @@
 #include <OpenFlipper/BasePlugin/PluginFunctions.hh>
 #include <ACG/Geometry/Algorithms.hh>
 
+#ifdef ENABLE_BSPLINECURVE_SUPPORT
+#include <ObjectTypes/BSplineCurve/BSplineCurve.hh>
+#endif
+
 #ifdef ENABLE_BSPLINESURFACE_SUPPORT
 #include <ObjectTypes/BSplineSurface/BSplineSurface.hh>
 #endif
@@ -121,6 +125,13 @@ void PrimitivesGeneratorPlugin::initializePlugin()
                           QString("Position,Axis,Radius,Height,Top,Bottom").split(","),
                           QString("Bottom center vertex position,Center axis,radius,height,add top vertex,add bottom vertex").split(","));
 
+#ifdef ENABLE_BSPLINECURVE_SUPPORT
+  emit setSlotDescription("addRandomBSplineCurve(Vector,int)",
+    tr("Generates a random B-spline curve (ObjectId is returned)"),
+    QString("Position,Count").split(","),
+    QString("Center position,Number of control points").split(","));
+#endif
+
 #ifdef ENABLE_BSPLINESURFACE_SUPPORT
   emit setSlotDescription("addRandomBSplineSurface(Vector,int)",
                           tr("Generates a random B-spline surface (ObjectId is returned)"),
@@ -187,6 +198,11 @@ void PrimitivesGeneratorPlugin::pluginsInitialized() {
     action->setIcon(QIcon(OpenFlipper::Options::iconDirStr()+OpenFlipper::Options::dirSeparator()+"primitive_tetrahedron.png"));
     whatsThisGen.setWhatsThis(action,tr("Create a Tetrahedron."),"Tetrahedron");
 
+#ifdef ENABLE_BSPLINECURVE_SUPPORT
+    action = primitivesMenu_->addAction("Random B-spline curve",this,SLOT(addRandomBSplineCurve()));
+    whatsThisGen.setWhatsThis(action,tr("Create a random B-spline curve."),"B-spline curve");
+#endif
+
 #ifdef ENABLE_BSPLINESURFACE_SUPPORT
     action = primitivesMenu_->addAction("Random B-spline surface",this,SLOT(addRandomBSplineSurface()));
     action->setIcon(QIcon(OpenFlipper::Options::iconDirStr()+OpenFlipper::Options::dirSeparator()+"bspline_surface.png"));
@@ -1038,6 +1054,40 @@ int PrimitivesGeneratorPlugin::addDodecahedron(const Vector& _position,const dou
   return -1;
 }
 
+#ifdef ENABLE_BSPLINECURVE_SUPPORT
+int PrimitivesGeneratorPlugin::addRandomBSplineCurve(const Vector& _position, int nDiv)
+{
+  int id = -1;
+  emit addEmptyObject(DATA_BSPLINE_CURVE, id);
+  if (id == -1) {
+    return -1;
+  }
+
+  BSplineCurveObject *object = NULL;
+  if (!PluginFunctions::getObject(id, object)) {
+    return -1;
+  }
+
+  BSplineCurve *curve = object->splineCurve();
+
+  curve->autocompute_knotvector(true);
+  for (int i = 0; i < nDiv; ++i) {
+    double x = _position[0] + i - nDiv / 2.0;
+
+    double r = (2.0 * std::rand()) / RAND_MAX - 1.0;
+    BSplineCurve::Point cp(x, _position[1] + r, _position[2]);
+    curve->add_control_point(cp);
+  }
+
+  emit updatedObject(id, UPDATE_ALL);
+  emit createBackup(id, "Original Object");
+
+  PluginFunctions::viewAll();
+
+  return id;
+}
+#endif
+
 #ifdef ENABLE_BSPLINESURFACE_SUPPORT
 int PrimitivesGeneratorPlugin::addRandomBSplineSurface(const Vector& _position, int nDiv)
 {
diff --git a/Plugin-PrimitivesGenerator/PrimitivesGenerator.hh b/Plugin-PrimitivesGenerator/PrimitivesGenerator.hh
index 7519f906c..1d4330369 100644
--- a/Plugin-PrimitivesGenerator/PrimitivesGenerator.hh
+++ b/Plugin-PrimitivesGenerator/PrimitivesGenerator.hh
@@ -145,6 +145,10 @@ public slots:
   int addDodecahedron(const Vector& _position = Vector(0.0,0.0,0.0),
                       const double _length = 2.0);
 
+#ifdef ENABLE_BSPLINECURVE_SUPPORT
+  int addRandomBSplineCurve(const Vector& _position = Vector(0, 0, 0), int nDiv = 5);
+#endif
+
 #ifdef ENABLE_BSPLINESURFACE_SUPPORT
   int addRandomBSplineSurface(const Vector& _position = Vector(0, 0, 0), int nDiv = 5);
 #endif
-- 
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