.. auto-generated by script ../../../../utils/nxdl2rst.py from the NXDL source NXquadric.nxdl.xml .. index:: ! NXquadric (contributed definition) ! quadric (contributed definition) see: quadric (contributed definition); NXquadric .. _NXquadric: ========= NXquadric ========= **Status**: contributed definition, extends :ref:`NXobject` **Description**: definition of a quadric surface. **Symbols**: No symbol table **Groups cited**: none **Structure**: .. _/NXquadric/parameters-field: .. index:: parameters (field) **parameters[10]**: (required) :ref:`NX_NUMBER ` {units=\ :ref:`NX_PER_LENGTH `} Ten real values of the matrix that defines the quadric surface in projective space. Ordered Q11, Q12, Q13, Q22, Q23, Q33, P1, P2, P3, R. Takes a units attribute of dimension reciprocal length. R is scalar. P has dimension reciprocal length, and the given units. Q has dimension reciprocal length squared, and units the square of those given. .. _/NXquadric/surface_type-field: .. index:: surface_type (field) **surface_type**: (optional) :ref:`NX_CHAR ` An optional description of the form of the quadric surface: Any of these values: * ``ELLIPSOID`` * ``ELLIPTIC_PARABOLOID`` * ``HYPERBOLIC_PARABOLOID`` * ``ELLIPTIC_HYPERBOLOID_OF_1_SHEET`` * ``ELLIPTIC_HYPERBOLOID_OF_2_SHEETS`` * ``ELLIPTIC_CONE`` * ``ELLIPTIC_CYLINDER`` * ``HYPERBOLIC_CYLINDER`` * ``PARABOLIC_CYLINDER`` * ``SPHEROID`` * ``SPHERE`` * ``PARABOLOID`` * ``HYPERBOLOID_1_SHEET`` * ``HYPERBOLOID_2_SHEET`` * ``CONE`` * ``CYLINDER`` * ``PLANE`` * ``IMAGINARY`` * ``UNKNOWN`` .. _/NXquadric/depends_on-field: .. index:: depends_on (field) **depends_on**: (optional) :ref:`NX_CHAR ` Path to an :ref:`NXtransformations` that defining the axis on which the orientation of the surface depends. Hypertext Anchors ----------------- Table of hypertext anchors for all groups, fields, attributes, and links defined in this class. ==================================================================== ==================================================================== documentation (reST source) anchor web page (HTML) anchor ==================================================================== ==================================================================== :ref:`/NXquadric/depends_on-field ` :ref:`#nxquadric-depends-on-field ` :ref:`/NXquadric/parameters-field ` :ref:`#nxquadric-parameters-field ` :ref:`/NXquadric/surface_type-field ` :ref:`#nxquadric-surface-type-field ` ==================================================================== ==================================================================== **NXDL Source**: https://github.com/FAIRmat-Experimental/nexus_definitions/tree/fairmat/contributed_definitions/NXquadric.nxdl.xml