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#include <Inventor/nodes/SoText3.h>
Inheritance diagram for SoText3:
Render text as 3D geometry.
The size of the textual geometry representation is decided from the SoFont::size field of a preceding SoFont-node in the scene graph, which specifies the size in unit coordinates. This value sets the approximate vertical size of the letters. The default value if no SoFont-nodes are used, is 10.
This node will create 3D geometry from a specified font defined by a preceding SoFont node. The complexity of the glyphs is controlled by a preceding SoComplexity node with Type set to OBJECT_SPACE. Please note that the default builtin 3D font will not be affected by the SoComplexity node.
This is a simple example of an extruded SoText3 string:
#Inventor V2.1 ascii Separator { renderCaching ON Font { name "Arial" size 2 } ProfileCoordinate2 { point [ 0 0, 0.05 0.05, 0.25 0.05, 0.3 0 ] } LinearProfile { index [ 0, 1, 2, 3 ] } Complexity { type OBJECT_SPACE value 1 } ShapeHints { creaseAngle 1.5 shapeType SOLID vertexOrdering COUNTERCLOCKWISE } Material { diffuseColor 0.6 0.6 0.8 specularColor 1 1 1 } Text3 { string ["Coin3D"] parts ALL } }
if SoText3::Part is set to SIDES or ALL and no profile is provided, a flat, one unit long profile will be created.
Separate colors can be assigned to the front, sides and back of the glyphs by adding a preceding SoMaterialBinding node. Set the value field to PER_PART (default is OVERALL). The front, side and back of the glyphs will then be colored according to diffuse color 0, 1 and 2 found on the stack.
Beware that using a lot of SoText3 text characters in a scene will usually have severe impact on the rendering performance, as each and every character of the text increases the polygon-count a lot. This makes SoText3 nodes most suitable in situations where you just need a few characters to be placed in your scene, rather than to visualize complete sentences.
FILE FORMAT/DEFAULTS:
Public Types | |
enum | Part { FRONT = 1, SIDES = 2, BACK = 4, ALL = FRONT|BACK|SIDES } |
enum | Justification { LEFT = 1, RIGHT, CENTER } |
Public Member Functions | |
virtual SoType | getTypeId (void) const |
SbBox3f | getCharacterBounds (SoState *state, int stringindex, int charindex) |
virtual void | GLRender (SoGLRenderAction *action) |
virtual void | getPrimitiveCount (SoGetPrimitiveCountAction *action) |
Static Public Member Functions | |
static SoType | getClassTypeId (void) |
static void | initClass (void) |
Public Attributes | |
SoMFString | string |
SoSFFloat | spacing |
SoSFEnum | justification |
SoSFBitMask | parts |
Protected Member Functions | |
virtual const SoFieldData * | getFieldData (void) const |
virtual void | generatePrimitives (SoAction *) |
virtual void | computeBBox (SoAction *action, SbBox3f &box, SbVec3f ¢er) |
virtual SoDetail * | createTriangleDetail (SoRayPickAction *action, const SoPrimitiveVertex *v1, const SoPrimitiveVertex *v2, const SoPrimitiveVertex *v3, SoPickedPoint *pp) |
virtual void | notify (SoNotList *list) |
Static Protected Member Functions | |
static const SoFieldData ** | getFieldDataPtr (void) |
Friends | |
class | SoText3P |
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Used to specify which parts should be rendered/generated. |
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Used to specify horizontal string alignment. |
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This static method returns the SoType object associated with objects of this class. Reimplemented from SoShape. |
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Returns the type identification of an object derived from a class inheriting SoBase. This is used for run-time type checking and "downward" casting. Usage example:
void foo(SoNode * node) { if (node->getTypeId() == SoFile::getClassTypeId()) { SoFile * filenode = (SoFile *)node; // safe downward cast, knows the type } else if (node->getTypeId().isOfType(SoGroup::getClassTypeId())) { SoGroup * group = (SoGroup *)node; // safe downward cast, knows the type } } For application programmers wanting to extend the library with new nodes, engines, nodekits, draggers or others: this method needs to be overridden in all subclasses. This is typically done as part of setting up the full type system for extension classes, which is usually accomplished by using the pre-defined macros available through for instance Inventor/nodes/SoSubNode.h (SO_NODE_INIT_CLASS and SO_NODE_CONSTRUCTOR for node classes), Inventor/engines/SoSubEngine.h (for engine classes) and so on. For more information on writing Coin extensions, see the class documentation of the toplevel superclasses for the various class groups. Reimplemented from SoShape. |
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This API member is considered internal to the library, as it is not likely to be of interest to the application programmer. Reimplemented from SoShape. |
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Returns a pointer to the class-wide field data storage object for this instance. If no fields are present, returns Reimplemented from SoShape. |
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Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system. Reimplemented from SoShape. |
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Not implemented. Should probably have been private in OIV. Let us know if you need this method for anything, and we'll implement it. |
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Action method for the SoGLRenderAction. This is called during rendering traversals. Nodes influencing the rendering state in any way or who wants to throw geometry primitives at OpenGL overrides this method. Reimplemented from SoShape. |
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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 calculates their primitive count also overrides this method to change the relevant state variables. Reimplemented from SoShape. |
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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. |
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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. |
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Will create triangle detail for a SoPickedPoint. This method will only be called internally, when generatePrimitives() is used for picking (SoShape::rayPick() is not overridden).
This method returns This is not necessary with Coin. Of course, if you choose to override it, it will work in the same way as Open Inventor.
For this to work, you must supply a face or line detail when generating primitives. If you supply Reimplemented from SoShape. |
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Notifies all auditors for this instance when changes are made. Reimplemented from SoShape. |
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The strings to render. Array defaults to contain a single empty string. |
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Vertical spacing. 1.0 is the default spacing. |
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Horizontal justification. Default is alignment at the left border. |
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Character parts. Default is to show only the front-facing part. |
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Generated on Tue Apr 17 04:40:39 2007 for Coin by Doxygen. 1.4.6