vgp.surface.common

## Class PgSurface_Boy

- java.lang.Object
- - jv.object.PsObject
  - - jvx.surface.PgDomainDescr
    - - vgp.surface.common.PgSurfaceDescr
      - - vgp.surface.common.PgSurface_Boy

- All Implemented Interfaces:
    java.io.Serializable, java.lang.Cloneable, PsUpdateIf

      public class PgSurface_Boy
      extends PgSurfaceDescr

  Boy's surface
  See Also:
    Serialized Form
  Author:
    Ulrich Reitebuch
  Version:
    11.10.00, 1.00 (ur) created.

- - ### Field Summary

    - ### Fields inherited from class vgp.surface.common.PgSurfaceDescr

      `BASE_SURFACE_NAME, BOY, BREATHER, BREATHER_PQ, CATALAN, CATENOID_HELICOID, CATENOID_HELICOID_SCENE, CLIFFORD_TORUS, CONE, CONIC_TYPE, CYLINDER, DINI, DUPIN_CYCLOID, DUPIN_SCENE, ELLIPSOID, ELLIPTIC_PARABOLOID, ENNEPER, FOOTBALL_BARREL, FRESNEL1, FRESNEL2, H3_HYPERBOLIC_HELICOID, HENNEBERG, HYPERBOLIC_PARABLOID, HYPERBOLOID_SCENE, HYPERBOLOID_TYPE, KLEINBOTTLE, KUEN, LOWER_HYPERBOLOID, MOEBIUS_STRIP, OUTER_HYPERBOLOID, PSEUDOSPHERE, S3_HOPFTORUS, S3_LAWSON_HELICOID, SIEVERT, SPHERE, STEREOGRAPHIC_SPHERE, TANNERY, TORUS, UPPER_HYPERBOLOID, ZOLL`

    - ### Fields inherited from class jv.object.PsObject

      `HAS_BOUNDARY_PANEL, HAS_CONFIG_PANEL, HAS_INFO_PANEL, HAS_LABEL_PANEL, HAS_MATERIAL_PANEL, HAS_TEXTURE_PANEL, HAS_VECTOR_PANEL, INSPECTOR_INFO, INSPECTOR_INFO_EXT, IS_DELETED, IS_FIXED, IS_FOCUSSED, IS_PICKED, IS_SELECTED, IS_USED, NUM_TAGS`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `PgSurface_Boy()`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `boolean` | `calc_f(PdVector fun, double u, double v)` Compute point on the surface at the given domain position.
    `void` | `init()` Initialize and reset data structure and all instance variables.
    `boolean` | `isUPeriodic()` Determine if surface is periodic in u-direction.
    `boolean` | `update(java.lang.Object event)` Catch events from function strings.

    - ### Methods inherited from class vgp.surface.common.PgSurfaceDescr

      `addParameter, christoffel, clone, copy, ddf_dUdU, ddf_dUdV, ddf_dVdV, df_dU, df_dV, df, dN_dU, dN_dV, dN, eval, firstFundamental, getAmbientProjection, getAmbientSpace, getDimOfSurface, getFunction, getListOfScenes, getListOfSurfaces, getParameter, getParameters, isVPeriodic, normal, secondFundamental, setAmbientProjection, setAmbientSpace, setDimOfSurface, setFunction, useFunctionExpression, useFunctionExpression, weingarten`

    - ### Methods inherited from class jvx.surface.PgDomainDescr

      `eval, getNameOfLines, getNumULines, getNumVLines, getUMax, getUMin, getVMax, getVMin, isShowingULine, isShowingVLine, setDiscr, setDiscrBounds, setMaxSize, setNameOfLines, setNumULines, setNumVLines, setSize, setUMax, setUMin, setVMax, setVMin, showULine, showVLine, toString`

    - ### Methods inherited from class jv.object.PsObject

      `addInspector, addUpdateListener, assureInspector, clearTag, clone, clone, getFather, getInfoPanel, getInspector, getName, getNumObjects, getSymbol, hasInspector, hasTag, hasUpdateListener, instanceOf, instanceOf, newInspector, newInspector, removeInspector, removeInspector, removeUpdateListener, setName, setParent, setSymbol, setTag, updatePanels`

    - ### Methods inherited from class java.lang.Object

      `equals, getClass, hashCode, notify, notifyAll, wait, wait, wait`

- - ### Constructor Detail

    - #### PgSurface_Boy

          public PgSurface_Boy()

  - ### Method Detail

    - #### isUPeriodic

          public boolean isUPeriodic()

      Description copied from class: `PgSurfaceDescr`
      Determine if surface is periodic in u-direction. This method returns false, but will be overwritten by surface which are periodic.
      Overrides:
        `isUPeriodic` in class `PgSurfaceDescr`

    - #### init

          public void init()

      Description copied from class: `PgDomainDescr`
      Initialize and reset data structure and all instance variables.
      Overrides:
        `init` in class `PgSurfaceDescr`

    - #### update

          public boolean update(java.lang.Object event)

      Description copied from class: `PgSurfaceDescr`
      Catch events from function strings. Update the class whenever a child has changed. Method is usually invoked from the children.
      Specified by:
        `update` in interface `PsUpdateIf`
      Overrides:
        `update` in class `PgSurfaceDescr`
      Parameters:
        `event` - carries a lot of information
      Returns:
        true if event has been handled, otherwise false
      See Also:
        `PsObject.setParent(PsUpdateIf)`, `PsObject.getFather()`, `PsObject.addUpdateListener(PsUpdateIf)`

    - #### calc_f

          public boolean calc_f(PdVector fun,
                                double u,
                                double v)

      Compute point on the surface at the given domain position.
      Overrides:
        `calc_f` in class `PgSurfaceDescr`
      Parameters:
        `fun` - vector where to place the function values.
      Returns:
        `true` if function has been overridden and evaluated successfully.
      See Also:
        `PgSurfaceDescr.eval(PdVector, double, double)`

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