ANSYS XML Specification for Geometry and Mesh Data Contents: · General · Geometry · Model Attributes · Mesh · Sample Geometry XML File · Sample Mesh XML File General: ->ANSYS HEADER: An ANSYS header giving the ANSYS version, the machine and operating system will be written out on each XML file. In addition the title of the job (from /TITLE) will also be written to the XML file. For example:
ANSYS This is your title, friend 6.0 SGI64 plt-4#14 win
->Geometry: At 6.0, only selected volumes (along with their underlying areas, lines and keypoints) will be written to the XML file as solids. If there are no volumes selected, then the selected areas (along with their underlying lines and keypoints) will be written to the XML file as sheets. ->FE model: The following FE entities will be supported: Geometry: EDGEMESH and FACEMESH are tesselation data Topoid description: // Make a topo id. USING TOP 3 BITS OF AN UNSIGNED LONG FOR TOPOLOGY TYPE // To make is easier to remember, the top 3 bits look like this: // vertex = 000 // edge = 010 // face = 100 // volume = 110 // sheet = 001 // Available: 111, 011, 101 // #define MAKEVERTEXTOPID(t) (((unsigned long)t) & 0x1FFFFFFF) #define MAKEEDGETOPID(t) ((0x40000000 | (unsigned long)t) & 0x5FFFFFFF) #define MAKEFACETOPID(t) ((0x80000000 | (unsigned long)t) & 0x9FFFFFFF) #define MAKEVOLUMETOPID(t) ((0xc0000000 | (unsigned long)t) & 0xdFFFFFFF) #define MAKESHEETTOPID(t) ((0x20000000 | (unsigned long)t) & 0x3FFFFFFF) // Classify topids // #define ISVERTEXTOPID(t) (((unsigned long)t & 0xe0000000) == 0) #define ISEDGETOPID(t) (((unsigned long)t & 0xe0000000) == 0x40000000) #define ISFACETOPID(t) (((unsigned long)t & 0xe0000000) == 0x80000000) #define ISVOLUMETOPID(t) (((unsigned long)t & 0xe0000000) == 0xc0000000) #define ISSHEETTOPID(t) (((unsigned long)t & 0xe0000000) == 0x20000000) --------------------------------------------------------------------------- Geometry database XML format ---------------------------------------------------------------------------
[contents]
[contents] -------------------------------------------
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Part Manager -1 Windows NT/2000/98 Generated by XML Export
------------------------------------------- ------------------------------------------- _i, i = 1,2,....,n_brep [contents] _j, j = 1,2,....,n_parts [contents] ------------------------------------------- ------------------------------------------- _j, j = 1,2,....,n_body [contents] ------------------------------------------- ------------------------------------------- double double double double double double 1.0000 0.0000 0.0000 0.0000 1.0000 0.0000 0.0000 0.0000 1.0000 0.0000 0.0000 0.0000 1.000000 [id] topoid persistentid ....... ------------------------------------------- ------------------------------------------- [contents] [contents] [contents] [contents] [contents] [contents] [contents] [contents] ------------------------------------------- ------------------------------------------- x y z ------------------------------------------ ------------------------------------------ curve data -> type dependent ------------------------------ straight line ------------------------------ x y z x y z ------------------------------ circle (circular arc) ------------------------------
Ox Oy Oz
Nx Ny Nz Xx Xy Xz x y z x y z r ------------------------------ NURBS curve (BSpline) ------------------------------ deg rat
form
cl per nK nC knId ctId val_i , i = 1,2,... n [W] stored if dim = 4; _i Cx Cy Cz [W] _i, i = 1,2, ...., n ------------------------------------------- ------------------------------------------- _i x y z _i i = 1,2, .... ------------------------------------------- ------------------------------------------- curveid startId endId 0 - 1 vertex only meshId ------------------------------------------- ------------------------------------------- surface data -> type dependent ------------------------------ plane ------------------------------ Ox Oy Oz Nx Ny Nz Xx Xy Xz ------------------------------ cylinder ------------------------------ Ox Oy Oz Nx Ny Nz Xx Xy Xz r ------------------------------ torus ------------------------------ Ox Oy Oz Nx Ny Nz Xx Xy Xz R r ------------------------------ torus ------------------------------ Ox Oy Oz Nx Ny Nz Xx Xy Xz r alpha ------------------------------ sphere ------------------------------ Ox Oy Oz Nx Ny Nz Xx Xy Xz r ------------------------------ NURBS surface ------------------------------ deg_u deg_v rat
form
cl_u cl_v per_u per_v nKu nKv nCu nCv knUId knVId ctrlId ------------------------------------------- ------------------------------------------- _i Vx Vy Vz Nx Ny Nz _i i = 1,2,.... n_v _j j Nv v_1 v_2 .... v_Nv _j j = 1,2, ...., n_poly ------------------------------------------- ------------------------------------------- _i [contents] _i, i = 1,2,....,n_loop surfId meshId ------------------------------------------- ------------------------------------------- lClass // external/internal/degenerate/... _i edgeid sense _i, i = 1, 2, ... , nEdgesInLoop ------------------------------------------- ------------------------------------------- // external/internal/sheet _i faceid sense _i, i = 1,2,,,, nFacesInShell Model Attributes: Model attributes are anything that can be associated with a model. There are global and local model attributes. Global may control things such as element sizing and global filtering options. Local Attributes are applied to persistent id’s to allow cad associativity. They can be size controls, shape controls, really anything that can be an attribute of an entity. 0 0.00000000000 4 4 4 Mesh: =============================================================== Nodes (including X,Y,Z locations and THXY,THYZ,THXZ rotations) For example: -.21049176792 3.050144176 .635417563381 1.57079632700 .0000000000 .000000000000 ulong ulong ulong =============================================================== Element Type: element topology(e.g. brick,tet etc), order (1(low) or 2(high), Ansys element type (e.g. 45), special feature (e.g. node-to-node contact, surface effect etc) For example: =============================================================== Elements: (element id, type id, material id, real constant id, node connectivity) For example: 1 61 41 21 2 62 42 22 1 61 41 21 2 62 42 22 1 61 41 21 2 62 42 22 ulong =============================================================== ->Real constant: Shell thicknesses at the corner nodes, Beam cross-section data (area, moments of inertia, thicknesses) For example: .1 .2 .1 .2 ==================================== The exterior face list describes the topologicaly associativity of the extior faces of the mesh nodei...noden nodei...noden nodei...noden nodei...noden nodei...noden nodei...noden Sample Geometry:
ANSYS 6.1 INTEL NT
1 1 100001 2 100002 3 100003 4 100004 5 100005 6 100006 7 100007 8 100008 1073741825 100009 1073741826 100010 1073741827 100011 1073741828 100012 1073741829 100013 1073741830 100014 1073741831 100015 1073741832 100016 1073741833 100017 1073741834 100018 1073741835 100019 1073741836 100020 2147483649 100021 2147483650 100022 2147483651 100023 2147483652 100024 2147483653 100025 2147483654 100026 3221225473 100027 0.00000000000 0.00000000000 0.00000000000 1.00000000000 1.00000000000 1.00000000000 1.0000 0.0000 0.0000 0.0000 1.0000 0.0000 0.0000 0.0000 1.0000 0.0000 0.0000 0.0000 1.000000 0.00000000000 1.00000000000 0.00000000000 0.00000000000 0.00000000000 0.00000000000 1.00000000000 1.00000000000 0.00000000000 1.00000000000 0.00000000000 0.00000000000 0.00000000000 0.00000000000 1.00000000000 1.00000000000 0.00000000000 1.00000000000 1.00000000000 1.00000000000 1.00000000000 0.00000000000 1.00000000000 1.00000000000 0.00000000000 0.00000000000 1.00000000000 1.00000000000 0.00000000000 1.00000000000 0.00000000000 0.00000000000 0.00000000000 0.00000000000 1 0
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Design Space -1 Windows NT/2000/98 Generated by Mesh Service
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