SoVRMLElevationGrid(3)

📦
version 4.0.10 · 4 versions
, in fedora 43, fedora 44

hey bestie 💖 welcome to the SoVRMLElevationGrid(3) manual from Coin ✨. this class is literally the blueprint for elevation grids, and i'm about to spill all the tea. no cap, we're covering every single function, attribute, and vibe. let's go 🫶

NAME ✨

SoVRMLElevationGrid — the class used to represent elevation grids. that's the whole point, bestie. 💅

SYNOPSIS 🌸

#include <Inventor/VRMLnodes/SoVRMLElevationGrid.h>

Inherits SoVRMLGeometry. so it's got that geometry lineage, iconic. 👑

Public Member Functions 💖

  • virtual SoType getTypeId (void) const
  • SoVRMLElevationGrid (void)
  • virtual void GLRender (SoGLRenderAction *action)
  • virtual void rayPick (SoRayPickAction *action)
  • virtual void getPrimitiveCount (SoGetPrimitiveCountAction *action)

Public Member Functions inherited from SoVRMLGeometry 🦋

  • virtual void search (SoSearchAction *action)
  • virtual void copyContents (const SoFieldContainer *from, SbBool copyConn)

Public Member Functions inherited from SoShape 🎀

  • virtual SbBool affectsState (void) const
  • virtual void getBoundingBox (SoGetBoundingBoxAction *action)
  • virtual void callback (SoCallbackAction *action)
  • const SoBoundingBoxCache * getBoundingBoxCache (void) const

Public Member Functions inherited from SoNode 🌈

  • void setOverride (const SbBool state)
  • SbBool isOverride (void) const
  • void setNodeType (const NodeType type)
  • NodeType getNodeType (void) const
  • virtual SoNode * copy (SbBool copyconnections=FALSE) const
  • virtual void doAction (SoAction *action)
  • virtual void GLRenderBelowPath (SoGLRenderAction *action)
  • virtual void GLRenderInPath (SoGLRenderAction *action)
  • virtual void GLRenderOffPath (SoGLRenderAction *action)
  • virtual void getMatrix (SoGetMatrixAction *action)
  • virtual void handleEvent (SoHandleEventAction *action)
  • virtual void pick (SoPickAction *action)
  • virtual void write (SoWriteAction *action)
  • virtual void audioRender (SoAudioRenderAction *action)
  • virtual void grabEventsSetup (void)
  • virtual void grabEventsCleanup (void)
  • virtual void startNotify (void)
  • SbUniqueId getNodeId (void) const
  • virtual void writeInstance (SoOutput *out)
  • virtual SoNode * addToCopyDict (void) const
  • virtual SoFieldContainer * copyThroughConnection (void) const

Public Member Functions inherited from SoFieldContainer 💜

  • void setToDefaults (void)
  • SbBool hasDefaultValues (void) const
  • SbBool fieldsAreEqual (const SoFieldContainer *container) const
  • void copyFieldValues (const SoFieldContainer *container, SbBool copyconnections=FALSE)
  • SbBool set (const char *const fielddata)
  • void get (SbString &fielddata)
  • virtual int getFields (SoFieldList &l) const
  • virtual int getAllFields (SoFieldList &l) const
  • virtual SoField * getField (const SbName &name) const
  • virtual SoField * getEventIn (const SbName &name) const
  • virtual SoField * getEventOut (const SbName &name) const
  • SbBool getFieldName (const SoField *const field, SbName &name) const
  • SbBool enableNotify (const SbBool flag)
  • SbBool isNotifyEnabled (void) const
  • SbBool set (const char *fielddata, SoInput *input)
  • void get (SbString &fielddata, SoOutput *out)
  • virtual SbBool validateNewFieldValue (SoField *field, void *newval)
  • virtual void addWriteReference (SoOutput *out, SbBool isfromfield=FALSE)
  • SbBool getIsBuiltIn (void) const
  • virtual void getFieldsMemorySize (size_t &managed, size_t &unmanaged) const
  • void setUserData (void *userdata) const
  • void * getUserData (void) const

Public Member Functions inherited from SoBase 🍓

  • void ref (void) const
  • void unref (void) const
  • void unrefNoDelete (void) const
  • int32_t getRefCount (void) const
  • void touch (void)
  • SbBool isOfType (SoType type) const — returns TRUE if the type of this object is either of the same type or inherited from type. 💅
  • virtual SbName getName (void) const
  • virtual void setName (const SbName &newname)
  • void addAuditor (void *const auditor, const SoNotRec::Type type)
  • void removeAuditor (void *const auditor, const SoNotRec::Type type)
  • const SoAuditorList & getAuditors (void) const
  • SbBool shouldWrite (void)
  • void assertAlive (void) const

Static Public Member Functions ⭐

  • static SoType getClassTypeId (void)
  • static void initClass (void)

Static Public Member Functions inherited from SoVRMLGeometry 🧚

  • static SoType getClassTypeId (void)
  • static void initClass (void)

Static Public Member Functions inherited from SoShape 💫

  • static SoType getClassTypeId (void)
  • static void initClass (void) — sets up initialization for data common to all instances of this class, like submitting necessary info to the Coin type system. it's giving setup energy. ✨
  • static void getScreenSize (SoState *const state, const SbBox3f &boundingbox, SbVec2s &rectsize)
  • static float getDecimatedComplexity (SoState *state, float complexity)

Static Public Member Functions inherited from SoNode 👑

  • static uint32_t getCompatibilityTypes (const SoType &nodetype)
  • static SoType getClassTypeId (void)
  • static SoNode * getByName (const SbName &name)
  • static int getByName (const SbName &name, SoNodeList &l)
  • static void initClass (void) — sets up initialization for data common to all instances of this class, like submitting necessary info to the Coin type system. 💖
  • static void initClasses (void)
  • static SbUniqueId getNextNodeId (void)
  • static int getActionMethodIndex (const SoType type)
  • static void getBoundingBoxS (SoAction *action, SoNode *node)
  • static void GLRenderS (SoAction *action, SoNode *node)
  • static void callbackS (SoAction *action, SoNode *node)
  • static void getMatrixS (SoAction *action, SoNode *node)
  • static void handleEventS (SoAction *action, SoNode *node)
  • static void pickS (SoAction *action, SoNode *node)
  • static void rayPickS (SoAction *action, SoNode *node)
  • static void searchS (SoAction *action, SoNode *node)
  • static void writeS (SoAction *action, SoNode *node)
  • static void audioRenderS (SoAction *action, SoNode *node)
  • static void getPrimitiveCountS (SoAction *action, SoNode *node)

Static Public Member Functions inherited from SoFieldContainer 🎀

  • static void initClass (void) — sets up initialization for data common to all instances of this class, like submitting necessary info to the Coin type system. 🎀
  • static SoType getClassTypeId (void) — this static method returns the SoType object associated with objects of this class. iconic. 👑
  • static void cleanupClass (void)
  • static void initCopyDict (void)
  • static void addCopy (const SoFieldContainer *orig, const SoFieldContainer *copy)
  • static SoFieldContainer * checkCopy (const SoFieldContainer *orig)
  • static SoFieldContainer * findCopy (const SoFieldContainer *orig, const SbBool copyconnections)
  • static void copyDone (void)

Static Public Member Functions inherited from SoBase 🌸

  • static void initClass (void) — sets up initialization for data common to all instances of this class, like submitting necessary info to the Coin type system. 🌸
  • static SoType getClassTypeId (void) — this static method returns the SoType object associated with objects of this class. 💅
  • static void addName (SoBase *const base, const char *const name)
  • static void removeName (SoBase *const base, const char *const name)
  • static void incrementCurrentWriteCounter (void)
  • static void decrementCurrentWriteCounter (void)
  • static SoBase * getNamedBase (const SbName &name, SoType type)
  • static int getNamedBases (const SbName &name, SoBaseList &baselist, SoType type)
  • static SbBool read (SoInput *input, SoBase *&base, SoType expectedtype)
  • static void setInstancePrefix (const SbString &c)
  • static void setTraceRefs (SbBool trace)
  • static SbBool getTraceRefs (void)
  • static SbBool connectRoute (SoInput *input, const SbName &fromnodename, const SbName &fromfieldname, const SbName &tonodename, const SbName &tofieldname)
  • static SbBool readRoute (SoInput *input)

Public Attributes 💖

  • SoSFBool ccw
  • SoSFBool solid
  • SoSFFloat creaseAngle
  • SoSFInt32 zDimension
  • SoSFInt32 xDimension
  • SoSFFloat zSpacing
  • SoSFFloat xSpacing
  • SoMFFloat height
  • SoSFNode texCoord
  • SoSFNode normal
  • SoSFNode color
  • SoSFBool colorPerVertex
  • SoSFBool normalPerVertex

Protected Member Functions 🔥

  • virtual const SoFieldData * getFieldData (void) const
  • virtual ~SoVRMLElevationGrid (void)
  • virtual void notify (SoNotList *list)
  • virtual void generatePrimitives (SoAction *action)
  • virtual void computeBBox (SoAction *action, SbBox3f &bbox, SbVec3f &center)

Protected Member Functions inherited from SoVRMLGeometry 🦋

  • SoVRMLGeometry (void)
  • virtual ~SoVRMLGeometry ()
  • void setupShapeHints (SoState *state, const SbBool ccw, const SbBool solid)
  • virtual SbBool shouldGLRender (SoGLRenderAction *action)
  • virtual SoChildList * getChildren (void) const

💖 Protected Member Functions

Protected Member Functions inherited from SoShape

okay bestie, these are the family heirlooms — SoShape passed them down and SoVRMLElevationGrid gets to use them all, no cap 🫶

  • SoShape(void) — the constructor, the birth of a shape ✨
  • virtual ~SoShape() — the destructor, the goodbye kiss 💔
  • float getComplexityValue(SoAction *action) — it's giving "how complex are we feeling today" 🎀
  • void beginSolidShape(SoGLRenderAction *action) — open up that solid shape moment
  • void endSolidShape(SoGLRenderAction *action) — and close it, slay
  • void GLRenderBoundingBox(SoGLRenderAction *action) — the bounding box gets its GL render glow-up
  • SbBool shouldPrimitiveCount(SoGetPrimitiveCountAction *action) — should we be counting primitives rn? that's the question 💅
  • SbBool shouldRayPick(SoRayPickAction *const action) — should we let the ray pick us? vibe check 🦋
  • void computeObjectSpaceRay(SoRayPickAction *const action) — math-ing the ray in object space
  • void computeObjectSpaceRay(SoRayPickAction *const action, const SbMatrix &matrix) — same energy, but now with a matrix, iconic
  • virtual SoDetail * createTriangleDetail(SoRayPickAction *action, const SoPrimitiveVertex *v1, const SoPrimitiveVertex *v2, const SoPrimitiveVertex *v3, SoPickedPoint *pp) — building that triangle detail, three vertices deep 🔺
  • virtual SoDetail * createLineSegmentDetail(SoRayPickAction *action, const SoPrimitiveVertex *v1, const SoPrimitiveVertex *v2, SoPickedPoint *pp) — line segment detail, two vertices, still cute
  • virtual SoDetail * createPointDetail(SoRayPickAction *action, const SoPrimitiveVertex *v, SoPickedPoint *pp) — one single vertex and it ate 💀
  • void invokeTriangleCallbacks(SoAction *const action, const SoPrimitiveVertex *const v1, const SoPrimitiveVertex *const v2, const SoPrimitiveVertex *const v3) — firing off the triangle callbacks, three at a time
  • void invokeLineSegmentCallbacks(SoAction *const action, const SoPrimitiveVertex *const v1, const SoPrimitiveVertex *const v2) — line segment callbacks, go off
  • void invokePointCallbacks(SoAction *const action, const SoPrimitiveVertex *const v) — point callbacks, tiny but mighty ✨
  • void beginShape(SoAction *const action, const TriangleShape shapetype, SoDetail *const detail=NULL) — start the shape, and heads up, that detail defaults to NULL
  • void shapeVertex(const SoPrimitiveVertex *const v) — one vertex of the shape, here she is
  • void endShape(void) — wrap it up bestie
  • void generateVertex(SoPrimitiveVertex *const pv, const SbVec3f &point, const SbBool useTexFunc, const SoMultiTextureCoordinateElement *const tce, const float s, const float t, const SbVec3f &normal) — generating a vertex with s and t, the whole setup
  • void generateVertex(SoPrimitiveVertex *const pv, const SbVec3f &point, const SbBool useTexFunc, const SoMultiTextureCoordinateElement *const tce, const float s, const float t, const float r, const SbVec3f &normal) — same but it also brought an r along, extra queen behavior 👑
  • SbBool startVertexArray(SoGLRenderAction *action, const SoCoordinateElement *coords, const SbVec3f *pervertexnormals, const SbBool texpervertex, const SbBool colorpervertex) — kicking off the vertex array with per-vertex normals, tex, and color
  • void finishVertexArray(SoGLRenderAction *action, const SbBool vbo, const SbBool normpervertex, const SbBool texpervertex, const SbBool colorpervertex) — closing out the vertex array, vbo and all 🌈

Protected Member Functions inherited from SoNode

  • SoNode(void) — constructor, the origin story
  • virtual ~SoNode() — destructor, gone but not forgotten 😭
  • virtual SbBool readInstance(SoInput *in, unsigned short flags) — reading in an instance, flags included

Protected Member Functions inherited from SoFieldContainer

  • SoFieldContainer(void) — constructor
  • virtual ~SoFieldContainer() — destructor

Protected Member Functions inherited from SoBase

  • SoBase(void) — constructor, the blueprint of it all
  • virtual ~SoBase() — destructor
  • virtual void destroy(void) — destroy, periodt 💥
  • SbBool hasMultipleWriteRefs(void) const — do we have multiple write refs? asking for a friend
  • SbBool writeHeader(SoOutput *out, SbBool isgroup, SbBool isengine) const — writing that header with isgroup and isengine
  • void writeFooter(SoOutput *out) const — and the footer, balance ✨
  • virtual const char * getFileFormatName(void) const — name of the file format, pls
  • virtual SoNotRec createNotRec(void) — creating a SoNotRec, no notes

✨ Static Protected Member Functions

  • static const SoFieldData ** getFieldDataPtr(void) — hand over the field data pointer, bestie

Static Protected Member Functions inherited from SoVRMLGeometry

  • static const SoFieldData ** getFieldDataPtr(void) — same one, inherited 💅

Static Protected Member Functions inherited from SoShape

  • static const SoFieldData ** getFieldDataPtr(void) — same again, the family trait

Static Protected Member Functions inherited from SoNode

  • static const SoFieldData ** getFieldDataPtr(void) — yes bestie, this one too
  • static void setNextActionMethodIndex(int index) — set that next action method index
  • static int getNextActionMethodIndex(void) — get it back out
  • static void incNextActionMethodIndex(void) — increment it, one at a time 🎀
  • static void setCompatibilityTypes(const SoType &nodetype, const uint32_t bitmask) — compatibility types, with a nodetype and a bitmask 🦋

Static Protected Member Functions inherited from SoBase

  • static uint32_t getCurrentWriteCounter(void) — the current write counter, returned as a uint32_t
  • static void staticDataLock(void) — lock the static data 🔒
  • static void staticDataUnlock(void) — unlock it, we're free 🔓

🌸 Additional Inherited Members

Public Types inherited from SoShape

  • enum TriangleShape { TRIANGLE_STRIP, TRIANGLE_FAN, TRIANGLES, POLYGON, QUADS, QUAD_STRIP, POINTS, LINES, LINE_STRIP } — the whole triangle-shape lineup, iconic roster fr fr

Public Types inherited from SoNode

  • enum NodeType { INVENTOR = 0x0000, VRML1 = 0x0001, VRML2 = 0x0002, INVENTOR_1 = 0x0004, INVENTOR_2_0 = 0x0008, INVENTOR_2_1 = 0x0010, INVENTOR_2_5 = 0x0020, INVENTOR_2_6 = 0x0040, COIN_1_0 = 0x0080, COIN_2_0 = 0x0100, EXTENSION = 0x0200, COIN_2_2 = 0x0400, COIN_2_3 = 0x0800, COIN_2_4 = 0x1000, INVENTOR_5_0 = 0x2000, COIN_2_5 = 0x4000, COIN_3_0 = 0x8000, INVENTOR_6_0 = 0x10000, COIN_4_0 = 0x20000 } — every node type with its hex value, a whole alphabet of vibes 🌈

Protected Types inherited from SoBase

  • enum BaseFlags { IS_ENGINE = 0x01, IS_GROUP = 0x02 } — just two flags, IS_ENGINE and IS_GROUP, short and sweet 💜

Protected Attributes inherited from SoNode

  • SbUniqueId uniqueId — her very own uniqueId, main character energy ✨

Protected Attributes inherited from SoFieldContainer

  • SbBool isBuiltIn — is it built in? that's the isBuiltIn flag 🎀

Static Protected Attributes inherited from SoNode

  • static SbUniqueId nextUniqueId = 1 — the next unique id, starting at 1
  • static int nextActionMethodIndex = 0 — and the next action method index, starting at 0 💖

💫 DETAILED DESCRIPTION 💫

okay bestie, so the SoVRMLElevationGrid class is the one that represents elevation grids 🏔️✨ That's the whole vibe.

The detailed class documentation is taken verbatim from the VRML97 standard (ISO/IEC 14772-1:1997). It is copyright The Web3D Consortium, and is used by permission of the Consortium:

ElevationGrid {
  eventIn      MFFloat  set_height
  exposedField SFNode   color             NULL
  exposedField SFNode   normal            NULL
  exposedField SFNode   texCoord          NULL
  field        MFFloat  height            []      # (-inf,inf)
  field        SFBool   ccw               TRUE
  field        SFBool   colorPerVertex    TRUE
  field        SFFloat  creaseAngle       0       # [0,inf]
  field        SFBool   normalPerVertex   TRUE
  field        SFBool   solid             TRUE
  field        SFInt32  xDimension        0       # [0,inf)
  field        SFFloat  xSpacing          1.0     # (0,inf)
  field        SFInt32  zDimension        0       # [0,inf)
  field        SFFloat  zSpacing          1.0     # (0,inf)
}

The ElevationGrid node specifies a uniform rectangular grid of varying height in the Y=0 plane of the local coordinate system. The geometry is described by a scalar array of height values that specify the height of a surface above each point of the grid. 🏗️

The xDimension and zDimension fields indicate the number of elements of the grid height array in the X and Z directions. Both xDimension and zDimension shall be greater than or equal to zero. If either the xDimension or the zDimension is less than two, the ElevationGrid contains no quadrilaterals. The vertex locations for the rectangles are defined by the height field and the xSpacing and zSpacing fields:

  • The height field is an xDimension by zDimension array of scalar values representing the height above the grid for each vertex.
  • The xSpacing and zSpacing fields indicate the distance between vertices in the X and Z directions respectively, and shall be greater than zero.

Thus, the vertex corresponding to the point P[i, j] on the grid is placed at:

P[i,j].x = xSpacing × i
P[i,j].y = height[ i + j × xDimension]
P[i,j].z = zSpacing × j

where 0 <= i < xDimension and 0 <= j < zDimension, and
P[0,0] is height[0] units above/below the origin of the local
coordinate system

The set_height eventIn allows the height MFFloat field to be changed to support animated ElevationGrid nodes. ✨ (yes bestie, you can animate the terrain, it's giving main character energy)

The color field specifies per-vertex or per-quadrilateral colours for the ElevationGrid node depending on the value of colorPerVertex. If the color field is NULL, the ElevationGrid node is rendered with the overall attributes of the Shape node enclosing the ElevationGrid node (see 4.14, Lighting model). 🎨

The colorPerVertex field determines whether colours specified in the color field are applied to each vertex or each quadrilateral of the ElevationGrid node. If colorPerVertex is FALSE and the color field is not NULL, the color field shall specify a Color node containing at least (xDimension-1)×(zDimension-1) colours; one for each quadrilateral, ordered as follows:

QuadColor[i,j] = Color[ i + j × (xDimension-1)]

where 0 <= i < xDimension-1 and 0 <= j < zDimension-1, and
QuadColor[i,j] is the colour for the quadrilateral defined by
height[i+j×xDimension], height[(i+1)+j×xDimension],
height[(i+1)+(j+1)×xDimension] and height[i+(j+1)×xDimension]

If colorPerVertex is TRUE and the color field is not NULL, the color field shall specify a Color node containing at least xDimension × zDimension colours, one for each vertex, ordered as follows:

VertexColor[i,j] = Color[ i + j × xDimension]

where 0 <= i < xDimension and 0 <= j < zDimension, and
VertexColor[i,j] is the colour for the vertex defined by
height[i+j×xDimension]

The normal field specifies per-vertex or per-quadrilateral normals for the ElevationGrid node. If the normal field is NULL, the browser shall automatically generate normals, using the creaseAngle field to determine if and how normals are smoothed across the surface (see 4.6.3.5, Crease angle field). 📐

The normalPerVertex field determines whether normals are applied to each vertex or each quadrilateral of the ElevationGrid node depending on the value of normalPerVertex. If normalPerVertex is FALSE and the normal node is not NULL, the normal field shall specify a Normal node containing at least (xDimension-1)×(zDimension-1) normals; one for each quadrilateral, ordered as follows:

QuadNormal[i,j] = Normal[ i + j × (xDimension-1)]

where 0 <= i < xDimension-1 and 0 <= j < zDimension-1, and
QuadNormal[i,j] is the normal for the quadrilateral
defined by height[i+j×xDimension], height[(i+1)+j×xDimension],
height[(i+1)+(j+1)×xDimension] and height[i+(j+1)×xDimension]

If normalPerVertex is TRUE and the normal field is not NULL, the normal field shall specify a Normal node containing at least xDimension × zDimension normals; one for each vertex, ordered as follows:

VertexNormal[i,j] = Normal[ i + j × xDimension]

where 0 <= i < xDimension and 0 <= j < zDimension, and
VertexNormal[i,j] is the normal for the vertex defined by
height[i+j×xDimension]

The texCoord field specifies per-vertex texture coordinates for the ElevationGrid node. If texCoord is NULL, default texture coordinates are applied to the geometry. The default texture coordinates range from (0,0) at the first vertex to (1,1) at the last vertex. The S texture coordinate is aligned with the positive X-axis, and the T texture coordinate with positive Z-axis. If texCoord is not NULL, it shall specify a TextureCoordinate node containing at least (xDimension)×(zDimension) texture coordinates; one for each vertex, ordered as follows: 🧵

VertexTexCoord[i,j] = TextureCoordinate[ i + j × xDimension]

where 0 <= i < xDimension and 0 <= j < zDimension, and
VertexTexCoord[i,j] is the texture coordinate for the vertex
defined by height[i+j×xDimension]

The ccw, solid, and creaseAngle fields are described in 4.6.3, Shapes and geometry. By default, the quadrilaterals are defined with a counterclockwise ordering. Hence, the Y-component of the normal is positive. Setting the ccw field to FALSE reverses the normal direction. Backface culling is enabled when the solid field is TRUE. See Figure 6.5 for a depiction of the ElevationGrid node. 🔥

Figure 6.5

🎀 Constructor & Destructor Documentation 🎀

SoVRMLElevationGrid::SoVRMLElevationGrid (void )

Constructor. 🐣 (the birth of your grid, iconic)

SoVRMLElevationGrid::~SoVRMLElevationGrid (void ) [protected], [virtual]

Destructor. 💀 (it's over bestie, rip)

👑 Member Function Documentation 👑

SoType SoVRMLElevationGrid::getClassTypeId (void ) [static]

This static method returns the SoType object associated with objects of this class. 🏷️

SoType SoVRMLElevationGrid::getTypeId (void ) const [virtual]

Returns the type identification of an object derived from a class inheriting SoBase. This is used for runtime type checking and "downward" casting.

Reimplemented from SoVRMLGeometry.

const SoFieldData ** SoVRMLElevationGrid::getFieldDataPtr (void ) [static], [protected]

This API member is considered internal to the library, as it is not likely to be of interest to the application programmer. 🙈

Returns the SoFieldData class which holds information about fields in this node.

const SoFieldData * SoVRMLElevationGrid::getFieldData (void ) const [protected], [virtual]

Returns a pointer to the class-wide field data storage object for this instance. If no fields are present, returns NULL. 🫶

Reimplemented from SoVRMLGeometry.

void SoVRMLElevationGrid::initClass (void ) [static]

(yep, that's the whole thing, no notes 💅)

void SoVRMLElevationGrid::GLRender (SoGLRenderAction * action) [virtual]

Action method for the SoGLRenderAction. ✨

This is called during rendering traversals. Nodes influencing the rendering state in any way or want to throw geometry primitives at OpenGL override this method.

Reimplemented from SoShape.

void SoVRMLElevationGrid::rayPick (SoRayPickAction * action) [virtual]

Calculates picked point based on primitives generated by subclasses. 🎯

Reimplemented from SoShape.

void SoVRMLElevationGrid::getPrimitiveCount (SoGetPrimitiveCountAction * action) [virtual]

Action method for the SoGetPrimitiveCountAction. 🔢

Calculates the number of triangle, line segment and point primitives for the node and adds these to the counters of the action.

Nodes influencing how geometry nodes calculate their primitive count also override this method to change the relevant state variables.

Reimplemented from SoShape.

void SoVRMLElevationGrid::notify (SoNotList * l) [protected], [virtual]

Notifies all auditors for this instance when changes are made. 📣

Reimplemented from SoVRMLGeometry.

void SoVRMLElevationGrid::generatePrimitives (SoAction * action) [protected], [virtual]

The method implements action behavior for shape nodes for SoCallbackAction. It is invoked from SoShape::callback(). (Subclasses should not override SoNode::callback().) 🚫

The subclass implementations uses the convenience methods SoShape::beginShape(), SoShape::shapeVertex(), and SoShape::endShape(), with SoDetail instances, to pass the primitives making up the shape back to the caller.

Implements SoShape.

void SoVRMLElevationGrid::computeBBox (SoAction * action, SbBox3f & box, SbVec3f & center) [protected], [virtual]

Implemented by SoShape subclasses to let the SoShape superclass know the exact size and weighted center point of the shape's bounding box. 📦

The bounding box and center point should be calculated and returned in the local coordinate system.

The method implements action behavior for shape nodes for SoGetBoundingBoxAction. It is invoked from SoShape::getBoundingBox(). (Subclasses should not override SoNode::getBoundingBox().)

The box parameter sent in is guaranteed to be an empty box, while center is undefined upon function entry. 🌸

Implements SoShape.

💖 Member Data Documentation 💖

okay bestie, this is the part where we meet the actual fields — the member variables you poke at to make your elevation grid do the thing. every single one, no skipping, we're being thorough girlies today ✨

  • SoSFBool ccw — tells the scene whether the triangles it generates are counterclockwise. default is TRUE. lowkey iconic behavior tbh.
  • SoSFBool solid — decides if backface culling should happen or not. default is TRUE. so yeah, cull those backfaces, slay 💅
  • SoSFFloat creaseAngle — this one holds the crease angle used for normal calculation. that's the whole vibe. that's it.
  • SoSFInt32 zDimension — the number of points along the z dimension. count them, bestie 📏
  • SoSFInt32 xDimension — the number of points along the x dimension. same energy, other axis.
  • SoSFFloat zSpacing — how far apart the points sit in the z dimension. default is 1.0.
  • SoSFFloat xSpacing — how far apart the points sit in the x dimension. default is 1.0 too. twins fr fr 🫶
  • SoMFFloat height — this is where the array of height values lives. all of them. the whole terrain, right there.
  • SoSFNode texCoord — can hold an SoVRMLTextureCoordinate node, and that node carries one texture coordinate per grid point. per point!! precise queen 👑
  • SoSFNode normal — can hold an SoVRMLTextureCoordinate node that contains normals for the grid. yes, that's literally what the docs say, we don't editorialize, we just report 🎀
  • SoSFNode color — can hold an SoVRMLColor node, which contains the grid colors. colorful moment, we love to see it 🌈
  • SoSFBool colorPerVertex — says whether colors should be applied per vertex. default is TRUE.
  • SoSFBool normalPerVertex — says whether normals should be applied per vertex. default is TRUE. consistent queen ✨
and that's the whole roster bestie, every last field accounted for, not a single one left behind 🦋

🌸 Author 🌸

Generated automatically by Doxygen for Coin from the source code. yes, a robot wrote it, and honestly? it ate. not a single typo. we stan an automated king 👑

and that's a wrap on SoVRMLElevationGrid(3)!! this page came from Coin version 4.0.10, dated Thu Jun 25 2026 00:00:00, and the source/version/date footer is right there at the bottom of the page where it's always lived — go peek at it, it's giving official 💅

thanks for reading all four parts bestie, you're literally a Unix scholar now, no cap, go build something gorgeous with your elevation grid 🌸🦋💜

📦 where this page comes from