| SoDrawStyle Class |
Node that defines the style to use when rendering.
Inheritance HierarchyOIV.InventorSoNetBase
OIV.InventorSoDisposable
OIV.Inventor.MiscSoBase
OIV.Inventor.FieldsSoFieldContainer
OIV.Inventor.NodesSoNode
OIV.Inventor.NodesSoDrawStyle
Namespace: OIV.Inventor.Nodes
Assembly: OIV.Inventor (in OIV.Inventor.dll) Version: 2024.1.1.0 (2024.1.1)
SyntaxThe SoDrawStyle type exposes the following members.
Constructors| Name | Description | |
|---|---|---|
 | SoDrawStyle | Creates a drawing style node with default settings. |
Methods| Name | Description | |
|---|---|---|
| AffectsState | Returns true if a node has an effect on the state during traversal. |
| Callback | (Overrides SoNodeCallback(SoCallbackAction).) |
| Copy | Calls Copy(false). (Inherited from SoNode.) |
| Copy(Boolean) | Creates and returns an exact copy of the node. |
| CopyFieldValues(SoFieldContainer) | Calls CopyFieldValues(fc, false). (Inherited from SoFieldContainer.) |
| CopyFieldValues(SoFieldContainer, Boolean) | Copies the contents of fc's fields into this object's fields. |
| Dispose |
Releases all resources used by SoDisposable.
(Inherited from SoDisposable.) |
| Distribute | (Inherited from SoNode.) |
| DoAction | (Overrides SoNodeDoAction(SoAction).) |
| EnableNotify | Notification at this Field Container is enabled (if flag == true) or disabled (if flag == false). |
| Equals | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
| FieldsAreEqual | Returns true if this object's fields are exactly equal to fc's fields. |
| Get | Returns the values of the fields of this object in the Open Inventor ASCII file format in the given string. |
| GetAllFields | Returns a list of fields, including the eventIn's and eventOut's. |
| GetAlternateRep | This method is called by actions to allow the node to provide an "alternate representation" when appropriate (typically depending on the action type). |
| GetBoundingBox | (Overrides SoNodeGetBoundingBox(SoGetBoundingBoxAction).) |
| GetEventIn | Returns a the eventIn with the given name. |
| GetEventOut | Returns the eventOut with the given name. |
| GetField | Returns a the field of this object whose name is fieldName. |
| GetFieldName | Returns the name of the given field in the fieldName argument. |
| GetFields | Appends references to all of this object's fields to resultList, and returns the number of fields appended. |
| GetHashCode |
Overrides GetHashCode().
(Inherited from SoNetBase.) |
| GetMatrix | (Inherited from SoNode.) |
| GetName | Returns the name of an instance. |
| GetPrimitiveCount | (Inherited from SoNode.) |
| GetRenderEngineMode | Returns the supported Render engine mode. |
| GetRenderUnitID | (Inherited from SoNode.) |
| GetStringName | (Inherited from SoBase.) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| GLRender | (Overrides SoNodeGLRender(SoGLRenderAction).) |
| GLRenderBelowPath | (Inherited from SoNode.) |
| GLRenderInPath | (Inherited from SoNode.) |
| GLRenderOffPath | (Inherited from SoNode.) |
| GrabEventsCleanup | (Inherited from SoNode.) |
| GrabEventsSetup | (Inherited from SoNode.) |
| HandleEvent | (Inherited from SoNode.) |
| HasDefaultValues | Returns true if all of the object's fields have their default values. |
| IsBoundingBoxIgnoring | This method is used by getBoundingBox action traversal to know if the current node must be traversed or not, ie the bounding should be ignored. |
| IsNotifyEnabled | Notification is the process of telling interested objects that this object has changed. |
| IsOverride | Returns the state of the override field. |
| IsSynchronizable | Gets the ScaleViz synchronizable state of this object. |
| Pick | (Inherited from SoNode.) |
| RayPick | (Overrides SoNodeRayPick(SoRayPickAction).) |
| Search | (Inherited from SoNode.) |
| Set | Sets one or more fields in this object to the values specified in the given string, which should be a string in the Open Inventor file format. |
| SetName | (Inherited from SoBase.) |
| SetOverride | Set the state of the override field. |
| SetSynchronizable | Sets this to be a ScaleViz synchronizable object. |
| SetToDefaults | Sets all fields in this object to their default values. |
| ToString |
Converts this SoBase structure to a human readable string.
(Inherited from SoBase.) |
| Touch | Marks an instance as modified, simulating a change to it. |
| Write | (Inherited from SoNode.) |
Properties| Name | Description | |
|---|---|---|
 | IsDisposable | ISafeDisposable interface implementation.
(Inherited from SoDisposable.) |
| linePattern | Stipple pattern for lines (for LINES style). |
| linePatternScaleFactor | Stipple pattern scale factor (for LINES style). |
| lineWidth | Width of lines (for LINES style). |
| pointSize | Radius of points (for POINTS style). |
| style | Drawing style. |
| UserData |
Gets or sets the user data to be contained by the field container.
(Inherited from SoFieldContainer.) |
RemarksThis node defines the current drawing style for all subsequent shape nodes in a scene graph. OIV.Inventor.Nodes.SoDrawStyle specifies how primitives should be rendered.
Draw style
The drawing style has no effect on picking or callback primitive generation. In particular, geometry with style INVISIBLE is not rendered but is still pickable. It can be useful to put, for example, an invisible sphere around an assembly to ensure that it is always picked as a unit.
Style INVISIBLE should generally not be used to "turn off" geometry. It is more efficient to put an OIV.Inventor.Nodes.SoSwitch node above the geometry and all its associated nodes. Using the Switch's whichChild field to "turn off" geometry avoids traversing any of the associated nodes.
Point size and line width notes
The default point size and line width are both 0, which means to use the OpenGL default value (1 in both cases). Point size and line width valuess greater than zero are considered to be specified in printer's points, where 1 inch = 72 printer's points. However the default pixels-per-inch (managed by OIV.Inventor.SbViewportRegion) is also 72. So effectively point size and line width are specified in pixels unless the application specifically sets a different pixels-per-inch value.
The maximum line width is hardware dependent. Only width 1 is guaranteed. An application could simulate wider lines using polygons if necessary.
If line antialiasing is disabled (which is the default), then OpenGL rounds the specified line width to the nearest integer. If rounding results in the value 0, it is as if the line width was set to 1.
When the specified point size and/or line width is greater than zero, the OIV.Inventor.Nodes.SoDrawStyle node will have a dependency on the OIV.Inventor.Elements.SoViewportRegionElement (for the pixels-per-inch value). As a result render caches may be invalidated when the viewport size changes, e.g. if the drawing window is resized.
FILE FORMAT/DEFAULT
DrawStyle {
| style | FILLED |
| pointSize | 0 |
| lineWidth | 0 |
| linePattern | 0xffff |
| linePatternScaleFactor | 1 |
ACTION BEHAVIOR
OIV.Inventor.Actions.SoGLRenderAction, OIV.Inventor.Actions.SoCallbackAction Sets the current drawing style. Sets: OIV.Inventor.Elements.SoDrawStyleElement, OIV.Inventor.Elements.SoPointSizeElement, OIV.Inventor.Elements.SoLineWidthElement, OIV.Inventor.Elements.SoLinePatternElement.
See Also