[brlcad-commits] SF.net SVN: brlcad:[36454] brlcad/trunk/src/conv/step

[<ind...@us...>]

Revision: 36454
          http://brlcad.svn.sourceforge.net/brlcad/?rev=36454&view=rev
Author:   indianlarry
Date:     2009-11-10 12:32:00 +0000 (Tue, 10 Nov 2009)

Log Message:
-----------
Added openNURBS brep generation code for Toroidal and Spherical surfacs.

Modified Paths:
--------------
    brlcad/trunk/src/conv/step/OpenNurbsInterfaces.cpp
    brlcad/trunk/src/conv/step/SphericalSurface.cpp
    brlcad/trunk/src/conv/step/SphericalSurface.h
    brlcad/trunk/src/conv/step/ToroidalSurface.cpp
    brlcad/trunk/src/conv/step/ToroidalSurface.h

Modified: brlcad/trunk/src/conv/step/OpenNurbsInterfaces.cpp
===================================================================
--- brlcad/trunk/src/conv/step/OpenNurbsInterfaces.cpp	2009-11-10 12:02:55 UTC (rev 36453)
+++ brlcad/trunk/src/conv/step/OpenNurbsInterfaces.cpp	2009-11-10 12:32:00 UTC (rev 36454)
@@ -88,6 +88,8 @@
 #include "RationalBSplineSurfaceWithKnots.h"
 #include "RationalQuasiUniformSurface.h"
 #include "RationalUniformSurface.h"
+#include "SphericalSurface.h"
+#include "ToroidalSurface.h"
 #include "UniformSurface.h"
 
 #include "AdvancedBrepShapeRepresentation.h"
@@ -2587,6 +2589,62 @@
 	return true;
 }
 
+bool SphericalSurface::LoadONBrep(ON_Brep *brep)
+{
+    // get sphere center
+    ON_3dPoint center = GetOrigin();
+    center = center * LocalUnits::length;
+
+    // Creates a sphere with given center and radius.
+    ON_Sphere sphere(center, radius * LocalUnits::length);
+
+    ON_RevSurface* s = sphere.RevSurfaceForm();
+    if (s) {
+	double r = fabs(sphere.radius);
+	if ( r <= ON_SQRT_EPSILON )
+	r = 1.0;
+	r *= ON_PI;
+	s->SetDomain(0,0.0,2.0*r);
+	s->SetDomain(1,-r,r);
+    }
+    ON_id = brep->AddSurface(s);
+
+    return true;
+}
+
+bool ToroidalSurface::LoadONBrep(ON_Brep *brep)
+{
+    ON_3dPoint origin = GetOrigin();
+    ON_3dVector norm = GetNormal();
+    ON_3dVector xaxis = GetXAxis();
+    ON_3dVector yaxis = GetYAxis();
+
+    origin = origin * LocalUnits::length;
+
+    ON_Plane p(origin, xaxis, yaxis);
+
+    // Creates a torus parallel to the plane
+    // with given major and minor radius.
+    ON_Torus torus(p, major_radius * LocalUnits::length, minor_radius * LocalUnits::length);
+
+    ON_RevSurface* s = torus.RevSurfaceForm();
+    if (s) {
+	double r = fabs(torus.major_radius);
+	if (r <= ON_SQRT_EPSILON)
+	    r = 1.0;
+	r *= ON_PI;
+	s->SetDomain(0, 0.0, 2.0 * r);
+	r = fabs(torus.minor_radius);
+	if (r <= ON_SQRT_EPSILON)
+	    r = 1.0;
+	r *= ON_PI;
+	s->SetDomain(1, 0.0, 2.0 * r);
+    }
+    ON_id = brep->AddSurface(s);
+
+    return true;
+}
+
 bool
 VertexLoop::LoadONBrep(ON_Brep *brep)
 {

Modified: brlcad/trunk/src/conv/step/SphericalSurface.cpp
===================================================================
--- brlcad/trunk/src/conv/step/SphericalSurface.cpp	2009-11-10 12:02:55 UTC (rev 36453)
+++ brlcad/trunk/src/conv/step/SphericalSurface.cpp	2009-11-10 12:32:00 UTC (rev 36454)
@@ -25,6 +25,8 @@
 #include "STEPWrapper.h"
 #include "Factory.h"
 
+#include "Axis2Placement3D.h"
+
 #include "SphericalSurface.h"
 
 #define CLASSNAME "SphericalSurface"
@@ -44,6 +46,27 @@
 SphericalSurface::~SphericalSurface() {
 }
 
+const double *
+SphericalSurface::GetOrigin() {
+	return position->GetOrigin();
+}
+
+const double *
+SphericalSurface::GetNormal() {
+	return position->GetAxis(2);
+}
+
+const double *
+SphericalSurface::GetXAxis() {
+	return position->GetXAxis();
+}
+
+const double *
+SphericalSurface::GetYAxis() {
+	return position->GetYAxis();
+}
+
+
 bool
 SphericalSurface::Load(STEPWrapper *sw, SCLP23(Application_instance) *sse) {
 	step=sw;
@@ -91,15 +114,6 @@
 		return (*i).second;
 	}
 }
-
-bool
-SphericalSurface::LoadONBrep(ON_Brep *brep)
-{
-	cerr << "Error: ::LoadONBrep(ON_Brep *brep) not implemented for " << entityname << endl;
-	return false;
-}
-
-
 // Local Variables:
 // tab-width: 8
 // mode: C++

Modified: brlcad/trunk/src/conv/step/SphericalSurface.h
===================================================================
--- brlcad/trunk/src/conv/step/SphericalSurface.h	2009-11-10 12:02:55 UTC (rev 36453)
+++ brlcad/trunk/src/conv/step/SphericalSurface.h	2009-11-10 12:32:00 UTC (rev 36454)
@@ -40,6 +40,10 @@
 	SphericalSurface();
 	virtual ~SphericalSurface();
 	SphericalSurface(STEPWrapper *sw,int STEPid);
+	const double *GetOrigin();
+	const double *GetNormal();
+	const double *GetXAxis();
+	const double *GetYAxis();
 	bool Load(STEPWrapper *sw,SCLP23(Application_instance) *sse);
 	virtual bool LoadONBrep(ON_Brep *brep);
 	virtual void Print(int level);

Modified: brlcad/trunk/src/conv/step/ToroidalSurface.cpp
===================================================================
--- brlcad/trunk/src/conv/step/ToroidalSurface.cpp	2009-11-10 12:02:55 UTC (rev 36453)
+++ brlcad/trunk/src/conv/step/ToroidalSurface.cpp	2009-11-10 12:32:00 UTC (rev 36454)
@@ -25,6 +25,8 @@
 #include "STEPWrapper.h"
 #include "Factory.h"
 
+#include "Axis2Placement3D.h"
+
 #include "ToroidalSurface.h"
 
 #define CLASSNAME "ToroidalSurface"
@@ -44,6 +46,26 @@
 ToroidalSurface::~ToroidalSurface() {
 }
 
+const double *
+ToroidalSurface::GetOrigin() {
+	return position->GetOrigin();
+}
+
+const double *
+ToroidalSurface::GetNormal() {
+	return position->GetAxis(2);
+}
+
+const double *
+ToroidalSurface::GetXAxis() {
+	return position->GetXAxis();
+}
+
+const double *
+ToroidalSurface::GetYAxis() {
+	return position->GetYAxis();
+}
+
 bool
 ToroidalSurface::Load(STEPWrapper *sw, SCLP23(Application_instance) *sse) {
 	step=sw;
@@ -94,14 +116,6 @@
 	}
 }
 
-bool
-ToroidalSurface::LoadONBrep(ON_Brep *brep)
-{
-	cerr << "Error: ::LoadONBrep(ON_Brep *brep) not implemented for " << entityname << endl;
-	return false;
-}
-
-
 // Local Variables:
 // tab-width: 8
 // mode: C++

Modified: brlcad/trunk/src/conv/step/ToroidalSurface.h
===================================================================
--- brlcad/trunk/src/conv/step/ToroidalSurface.h	2009-11-10 12:02:55 UTC (rev 36453)
+++ brlcad/trunk/src/conv/step/ToroidalSurface.h	2009-11-10 12:32:00 UTC (rev 36454)
@@ -41,6 +41,10 @@
 	ToroidalSurface();
 	virtual ~ToroidalSurface();
 	ToroidalSurface(STEPWrapper *sw,int STEPid);
+	const double *GetOrigin();
+	const double *GetNormal();
+	const double *GetXAxis();
+	const double *GetYAxis();
 	bool Load(STEPWrapper *sw,SCLP23(Application_instance) *sse);
 	virtual bool LoadONBrep(ON_Brep *brep);
 	virtual void Print(int level);


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