com.sun.j3d.utils.universe
Class ConfigSexpression

java.lang.Object
  com.sun.j3d.utils.universe.ConfigSexpression

 class ConfigSexpression
extends java.lang.Object

Field Summary

private java.util.ArrayList

elements

Constructor Summary

ConfigSexpression()

Method Summary

private Matrix4d	concatenate(java.util.ArrayList elements) Processes the (RotateTranslate m1 m2), (TranslateRotate m1 m2), and (Concatenate m1 m2) built-in commands.
private java.lang.Object	evaluateBuiltIn(ConfigContainer configContainer, java.util.ArrayList elements, int lineNumber) This method gets called from the s-expression parser to evaluate a built-in command.
private BoundingSphere	makeBoundingSphere(java.util.ArrayList elements) Processes the built-in command (BoundingSphere center radius).
private Matrix4d	makeRotate(java.util.ArrayList elements) Processes the (Rotate x y z) built-in command.
private Matrix4d	makeTranslate(java.util.ArrayList elements) Processes the built-in command (Translate x y z).
private int	myNextToken(java.io.StreamTokenizer st, java.lang.String file)
(package private) java.lang.Object	parseAndEval(ConfigContainer configContainer, java.io.StreamTokenizer st, int level)
(package private) void	print()
private java.lang.String	scanJavaProperties(java.io.StreamTokenizer st, java.lang.String f, java.lang.String s) Scan for Java properties in the specified string.
private void	syntaxError(java.io.StreamTokenizer st, java.lang.String file, java.lang.String s)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

elements

private java.util.ArrayList elements

Constructor Detail

ConfigSexpression

ConfigSexpression()

Method Detail

syntaxError

private void syntaxError(java.io.StreamTokenizer st,
                         java.lang.String file,
                         java.lang.String s)

myNextToken

private int myNextToken(java.io.StreamTokenizer st,
                        java.lang.String file)

parseAndEval

java.lang.Object parseAndEval(ConfigContainer configContainer,
                              java.io.StreamTokenizer st,
                              int level)

scanJavaProperties

private java.lang.String scanJavaProperties(java.io.StreamTokenizer st,
                                            java.lang.String f,
                                            java.lang.String s)

Scan for Java properties in the specified string. Nested properties are not supported.

Parameters:

st - stream tokenizer in use

f - current file name

s - string containing non-nested Java properties possibly interspersed with arbitrary text.

Returns:

scanned string with Java properties replaced with values

evaluateBuiltIn

private java.lang.Object evaluateBuiltIn(ConfigContainer configContainer,
                                         java.util.ArrayList elements,
                                         int lineNumber)

This method gets called from the s-expression parser to evaluate a built-in command.

Parameters:

elements - tokenized list of sexp elements

Returns:

object representing result of evaluation

makeTranslate

private Matrix4d makeTranslate(java.util.ArrayList elements)

Processes the built-in command (Translate x y z).

Parameters:

elements - ArrayList containing Doubles wrapping x, y, and z translation components at indices 1, 2, and 3 respectively

Returns:

matrix that translates by the given x, y, and z components

makeRotate

private Matrix4d makeRotate(java.util.ArrayList elements)

Processes the (Rotate x y z) built-in command.

Parameters:

elements - ArrayList containing Doubles wrapping x, y, and z Euler angles at indices 1, 2, and 3 respectively

Returns:

matrix that rotates by the given Euler angles around static X, Y, and Z basis vectors: first about X, then Y, and then Z

See Also:

Transform3D#setEuler()

concatenate

private Matrix4d concatenate(java.util.ArrayList elements)

Processes the (RotateTranslate m1 m2), (TranslateRotate m1 m2), and (Concatenate m1 m2) built-in commands. Although these do exactly the same thing, using the appropriate command is recommended in order to explicitly describe the sequence of transforms and their intent.

Parameters:

elements - ArrayList containing Matrix4d objects m1 and m2 at indices 1 and 2 respectively

Returns:

matrix that concatenates m1 and m2 in that order: if a point is transformed by the resulting matrix, then in effect the points are first transformed by m1 and then m2

makeBoundingSphere

private BoundingSphere makeBoundingSphere(java.util.ArrayList elements)

Processes the built-in command (BoundingSphere center radius). This is used when configuring behaviors.

Parameters:

elements - ArrayList containing Point3d at index 1 for the sphere center and Double at index 2 wrapping the sphere radius, or the String "infinite" at index 2.

Returns:

BoundingSphere with the given center and radius

print

void print()