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sphere.h
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1 //
2 // Copyright 2016 Pixar
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4 // Licensed under the Apache License, Version 2.0 (the "Apache License")
5 // with the following modification; you may not use this file except in
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24 #ifndef USDGEOM_GENERATED_SPHERE_H
25 #define USDGEOM_GENERATED_SPHERE_H
26 
27 /// \file usdGeom/sphere.h
28 
29 #include "pxr/pxr.h"
30 #include "pxr/usd/usdGeom/api.h"
31 #include "pxr/usd/usdGeom/gprim.h"
32 #include "pxr/usd/usd/prim.h"
33 #include "pxr/usd/usd/stage.h"
34 #include "pxr/usd/usdGeom/tokens.h"
35 
36 #include "pxr/base/vt/value.h"
37 
38 #include "pxr/base/gf/vec3d.h"
39 #include "pxr/base/gf/vec3f.h"
40 #include "pxr/base/gf/matrix4d.h"
41 
42 #include "pxr/base/tf/token.h"
43 #include "pxr/base/tf/type.h"
44 
46 
47 class SdfAssetPath;
48 
49 // -------------------------------------------------------------------------- //
50 // SPHERE //
51 // -------------------------------------------------------------------------- //
52 
53 /// \class UsdGeomSphere
54 ///
55 /// Defines a primitive sphere centered at the origin.
56 ///
57 /// The fallback values for Cube, Sphere, Cone, and Cylinder are set so that
58 /// they all pack into the same volume/bounds.
59 ///
61 {
62 public:
63  /// Compile time constant representing what kind of schema this class is.
64  ///
65  /// \sa UsdSchemaType
67 
68  /// Construct a UsdGeomSphere on UsdPrim \p prim .
69  /// Equivalent to UsdGeomSphere::Get(prim.GetStage(), prim.GetPath())
70  /// for a \em valid \p prim, but will not immediately throw an error for
71  /// an invalid \p prim
72  explicit UsdGeomSphere(const UsdPrim& prim=UsdPrim())
73  : UsdGeomGprim(prim)
74  {
75  }
76 
77  /// Construct a UsdGeomSphere on the prim held by \p schemaObj .
78  /// Should be preferred over UsdGeomSphere(schemaObj.GetPrim()),
79  /// as it preserves SchemaBase state.
80  explicit UsdGeomSphere(const UsdSchemaBase& schemaObj)
81  : UsdGeomGprim(schemaObj)
82  {
83  }
84 
85  /// Destructor.
87  virtual ~UsdGeomSphere();
88 
89  /// Return a vector of names of all pre-declared attributes for this schema
90  /// class and all its ancestor classes. Does not include attributes that
91  /// may be authored by custom/extended methods of the schemas involved.
93  static const TfTokenVector &
94  GetSchemaAttributeNames(bool includeInherited=true);
95 
96  /// Return a UsdGeomSphere holding the prim adhering to this
97  /// schema at \p path on \p stage. If no prim exists at \p path on
98  /// \p stage, or if the prim at that path does not adhere to this schema,
99  /// return an invalid schema object. This is shorthand for the following:
100  ///
101  /// \code
102  /// UsdGeomSphere(stage->GetPrimAtPath(path));
103  /// \endcode
104  ///
106  static UsdGeomSphere
107  Get(const UsdStagePtr &stage, const SdfPath &path);
108 
109  /// Attempt to ensure a \a UsdPrim adhering to this schema at \p path
110  /// is defined (according to UsdPrim::IsDefined()) on this stage.
111  ///
112  /// If a prim adhering to this schema at \p path is already defined on this
113  /// stage, return that prim. Otherwise author an \a SdfPrimSpec with
114  /// \a specifier == \a SdfSpecifierDef and this schema's prim type name for
115  /// the prim at \p path at the current EditTarget. Author \a SdfPrimSpec s
116  /// with \p specifier == \a SdfSpecifierDef and empty typeName at the
117  /// current EditTarget for any nonexistent, or existing but not \a Defined
118  /// ancestors.
119  ///
120  /// The given \a path must be an absolute prim path that does not contain
121  /// any variant selections.
122  ///
123  /// If it is impossible to author any of the necessary PrimSpecs, (for
124  /// example, in case \a path cannot map to the current UsdEditTarget's
125  /// namespace) issue an error and return an invalid \a UsdPrim.
126  ///
127  /// Note that this method may return a defined prim whose typeName does not
128  /// specify this schema class, in case a stronger typeName opinion overrides
129  /// the opinion at the current EditTarget.
130  ///
132  static UsdGeomSphere
133  Define(const UsdStagePtr &stage, const SdfPath &path);
134 
135 protected:
136  /// Returns the type of schema this class belongs to.
137  ///
138  /// \sa UsdSchemaType
140  UsdSchemaType _GetSchemaType() const override;
141 
142 private:
143  // needs to invoke _GetStaticTfType.
144  friend class UsdSchemaRegistry;
146  static const TfType &_GetStaticTfType();
147 
148  static bool _IsTypedSchema();
149 
150  // override SchemaBase virtuals.
152  const TfType &_GetTfType() const override;
153 
154 public:
155  // --------------------------------------------------------------------- //
156  // RADIUS
157  // --------------------------------------------------------------------- //
158  /// Indicates the sphere's radius. If you
159  /// author \em radius you must also author \em extent.
160  ///
161  /// \sa GetExtentAttr()
162  ///
163  /// \n C++ Type: double
164  /// \n Usd Type: SdfValueTypeNames->Double
165  /// \n Variability: SdfVariabilityVarying
166  /// \n Fallback Value: 1.0
168  UsdAttribute GetRadiusAttr() const;
169 
170  /// See GetRadiusAttr(), and also
171  /// \ref Usd_Create_Or_Get_Property for when to use Get vs Create.
172  /// If specified, author \p defaultValue as the attribute's default,
173  /// sparsely (when it makes sense to do so) if \p writeSparsely is \c true -
174  /// the default for \p writeSparsely is \c false.
176  UsdAttribute CreateRadiusAttr(VtValue const &defaultValue = VtValue(), bool writeSparsely=false) const;
177 
178 public:
179  // --------------------------------------------------------------------- //
180  // EXTENT
181  // --------------------------------------------------------------------- //
182  /// Extent is re-defined on Sphere only to provide a fallback
183  /// value. \sa UsdGeomGprim::GetExtentAttr().
184  ///
185  /// \n C++ Type: VtArray<GfVec3f>
186  /// \n Usd Type: SdfValueTypeNames->Float3Array
187  /// \n Variability: SdfVariabilityVarying
188  /// \n Fallback Value: [(-1, -1, -1), (1, 1, 1)]
190  UsdAttribute GetExtentAttr() const;
191 
192  /// See GetExtentAttr(), and also
193  /// \ref Usd_Create_Or_Get_Property for when to use Get vs Create.
194  /// If specified, author \p defaultValue as the attribute's default,
195  /// sparsely (when it makes sense to do so) if \p writeSparsely is \c true -
196  /// the default for \p writeSparsely is \c false.
198  UsdAttribute CreateExtentAttr(VtValue const &defaultValue = VtValue(), bool writeSparsely=false) const;
199 
200 public:
201  // ===================================================================== //
202  // Feel free to add custom code below this line, it will be preserved by
203  // the code generator.
204  //
205  // Just remember to:
206  // - Close the class declaration with };
207  // - Close the namespace with PXR_NAMESPACE_CLOSE_SCOPE
208  // - Close the include guard with #endif
209  // ===================================================================== //
210  // --(BEGIN CUSTOM CODE)--
211 
212  /// Compute the extent for the sphere defined by the radius.
213  ///
214  /// \return true upon success, false if unable to calculate extent.
215  ///
216  /// On success, extent will contain an approximate axis-aligned bounding
217  /// box of the sphere defined by the radius.
218  ///
219  /// This function is to provide easy authoring of extent for usd authoring
220  /// tools, hence it is static and acts outside a specific prim (as in
221  /// attribute based methods).
223  static bool ComputeExtent(double radius, VtVec3fArray* extent);
224 
225  /// \overload
226  /// Computes the extent as if the matrix \p transform was first applied.
228  static bool ComputeExtent(double radius, const GfMatrix4d& transform,
229  VtVec3fArray* extent);
230 };
231 
233 
234 #endif
USDGEOM_API UsdAttribute CreateExtentAttr(VtValue const &defaultValue=VtValue(), bool writeSparsely=false) const
GLuint GLenum GLenum transform
Definition: glew.h:14742
USDGEOM_API UsdAttribute GetRadiusAttr() const
static USDGEOM_API UsdGeomSphere Get(const UsdStagePtr &stage, const SdfPath &path)
Represents a concrete typed schema.
static USDGEOM_API bool ComputeExtent(double radius, VtVec3fArray *extent)
USDGEOM_API UsdSchemaType _GetSchemaType() const override
UsdSchemaType
Definition: common.h:149
Definition: prim.h:131
std::vector< TfToken > TfTokenVector
Convenience types.
Definition: token.h:438
USDGEOM_API UsdAttribute GetExtentAttr() const
Definition: path.h:287
USDGEOM_API UsdAttribute CreateRadiusAttr(VtValue const &defaultValue=VtValue(), bool writeSparsely=false) const
GLint GLenum GLsizei GLsizei GLsizei GLsizei extent
Definition: glew.h:15538
GLsizei const GLchar *const * path
Definition: glew.h:6461
PXR_NAMESPACE_CLOSE_SCOPE PXR_NAMESPACE_OPEN_SCOPE
Definition: path.h:1245
static USDGEOM_API UsdGeomSphere Define(const UsdStagePtr &stage, const SdfPath &path)
#define PXR_NAMESPACE_CLOSE_SCOPE
Definition: pxr.h:83
UsdGeomSphere(const UsdSchemaBase &schemaObj)
Definition: sphere.h:80
Definition: type.h:70
static USDGEOM_API const TfTokenVector & GetSchemaAttributeNames(bool includeInherited=true)
#define USDGEOM_API
Definition: api.h:40
UsdGeomSphere(const UsdPrim &prim=UsdPrim())
Definition: sphere.h:72
Definition: value.h:182
virtual USDGEOM_API ~UsdGeomSphere()
Destructor.
static const UsdSchemaType schemaType
Definition: sphere.h:66