/****************************************************************************** * $Id$ * * Project: Microstation DGN Access Library * Purpose: Definitions of public structures and API of DGN Library. * Author: Frank Warmerdam, warmerdam@pobox.com * ****************************************************************************** * Copyright (c) 2000, Avenza Systems Inc, http://www.avenza.com/ * * SPDX-License-Identifier: MIT ****************************************************************************/ #ifndef DGNLIB_H_INCLUDED #define DGNLIB_H_INCLUDED #undef STRICT_CPLERRORNUM_TYPE #include "cpl_conv.h" CPL_C_START #define CPLE_DGN_ERROR_BASE #define CPLE_ElementTooBig CPLE_DGN_ERROR_BASE + 1 /** * \file dgnlib.h * * Definitions of public structures and API of DGN Library. */ /** * DGN Point structure. * * Note that the DGNReadElement() function transforms points into "master" * coordinate system space when they are in the file in UOR (units of * resolution) coordinates. */ typedef struct { double x; /*!< x (normally eastwards) coordinate. */ double y; /*!< y (normally northwards) coordinate. */ double z; /*!< z, up coordinate. Zero for 2D objects. */ } DGNPoint; /** * Element summary information. * * Minimal information kept about each element if an element summary * index is built for a file by DGNGetElementIndex(). */ typedef struct { unsigned char level; /*!< Element Level: 0-63 */ unsigned char type; /*!< Element type (DGNT_*) */ unsigned char stype; /*!< Structure type (DGNST_*) */ unsigned char flags; /*!< Other flags */ vsi_l_offset offset; /*!< Offset within file (private) */ } DGNElementInfo; /** * Core element structure. * * Core information kept about each element that can be read from a DGN * file. This structure is the first component of each specific element * structure (like DGNElemMultiPoint). Normally the DGNElemCore.stype * field would be used to decide what specific structure type to case the * DGNElemCore pointer to. * */ typedef struct { int offset; int size; int element_id; /*!< Element number (zero based) */ int stype; /*!< Structure type: (DGNST_*) */ int level; /*!< Element Level: 0-63 */ int type; /*!< Element type (DGNT_) */ int complex; /*!< Is element complex? */ int deleted; /*!< Is element deleted? */ int graphic_group; /*!< Graphic group number */ int properties; /*!< Properties: ORing of DGNPF_ flags */ int color; /*!< Color index (0-255) */ int weight; /*!< Line Weight (0-31) */ int style; /*!< Line Style: One of DGNS_* values */ int attr_bytes; /*!< Bytes of attribute data, usually zero. */ unsigned char *attr_data; /*!< Raw attribute data */ int raw_bytes; /*!< Bytes of raw data, usually zero. */ unsigned char *raw_data; /*!< All raw element data including header. */ } DGNElemCore; /** * Multipoint element * * The core.stype code is DGNST_MULTIPOINT. * * Used for: DGNT_LINE(3), DGNT_LINE_STRING(4), DGNT_SHAPE(6), DGNT_CURVE(11), * DGNT_BSPLINE_POLE(21) */ typedef struct { DGNElemCore core; int num_vertices; /*!< Number of vertices in "vertices" */ DGNPoint vertices[1]; /*!< Array of two or more vertices */ // Note: We set [1] to please clang UBSAN // regarding structures that are extended at // malloc time } DGNElemMultiPoint; /** * Ellipse element * * The core.stype code is DGNST_ARC. * * Used for: DGNT_ELLIPSE(15), DGNT_ARC(16) */ typedef struct { DGNElemCore core; DGNPoint origin; /*!< Origin of ellipse */ double primary_axis; /*!< Primary axis length */ double secondary_axis; /*!< Secondary axis length */ double rotation; /*!< Counterclockwise rotation in degrees */ int quat[4]; double startang; /*!< Start angle (degrees counterclockwise of primary axis) */ double sweepang; /*!< Sweep angle (degrees) */ } DGNElemArc; /** * Text element * * The core.stype code is DGNST_TEXT. * * NOTE: Currently we are not capturing the "editable fields" information. * * Used for: DGNT_TEXT(17). */ typedef struct { DGNElemCore core; /* must be at first position ! */ int font_id; /*!< Microstation font id, no list available*/ int justification; /*!< Justification, see DGNJ_* */ double length_mult; /*!< Char width in master (if square) */ double height_mult; /*!< Char height in master units */ double rotation; /*!< Counterclockwise rotation in degrees */ DGNPoint origin; /*!< Bottom left corner of text. */ char string[1]; /*!< Actual text (length varies, \0 terminated*/ } DGNElemText; /** * Complex header element * * The core.stype code is DGNST_COMPLEX_HEADER. * * Used for: DGNT_COMPLEX_CHAIN_HEADER(12), DGNT_COMPLEX_SHAPE_HEADER(14), * DGNT_3DSURFACE_HEADER(18) and DGNT_3DSOLID_HEADER(19). * * Compatible with DGNT_TEXT_NODE (7), see DGNAddRawAttrLink() */ typedef struct { DGNElemCore core; /* must be at first position ! */ int totlength; /*!< Total length of surface in words, excluding the first 19 words (header + totlength field) */ int numelems; /*!< # of elements in surface */ int surftype; /*!< surface/solid type (only used for 3D surface/solid). One of DGNSUT_* or DGNSOT_*. */ int boundelms; /*!< # of elements in each boundary (only used for 3D surface/solid). */ } DGNElemComplexHeader; /** * Color table. * * The core.stype code is DGNST_COLORTABLE. * * Returned for DGNT_GROUP_DATA(5) elements, with a level number of * DGN_GDL_COLOR_TABLE(1). */ typedef struct { DGNElemCore core; int screen_flag; GByte color_info[256][3]; /*!< Color table, 256 colors by red (0), green(1) and blue(2) component. */ } DGNElemColorTable; typedef struct { int flags; unsigned char levels[8]; DGNPoint origin; DGNPoint delta; double transmatrx[9]; double conversion; unsigned long activez; } DGNViewInfo; /** * Terminal Control Block (header). * * The core.stype code is DGNST_TCB. * * Returned for DGNT_TCB(9). * * The first TCB in the file is used to determine the dimension (2D vs. 3D), * and transformation from UOR (units of resolution) to subunits, and subunits * to master units. This is handled transparently within DGNReadElement(), so * it is not normally necessary to handle this element type at the application * level, though it can be useful to get the sub_units, and master_units names. */ typedef struct { DGNElemCore core; /* must be at first position ! */ int dimension; /*!< Dimension (2 or 3) */ double origin_x; /*!< X origin of UOR space in master units(?)*/ double origin_y; /*!< Y origin of UOR space in master units(?)*/ double origin_z; /*!< Z origin of UOR space in master units(?)*/ long uor_per_subunit; /*!< UOR per subunit. */ char sub_units[3]; /*!< User name for subunits (2 chars)*/ long subunits_per_master; /*!< Subunits per master unit. */ char master_units[3]; /*!< User name for master units (2 chars)*/ DGNViewInfo views[8]; } DGNElemTCB; /** * Cell Header. * * The core.stype code is DGNST_CELL_HEADER. * * Returned for DGNT_CELL_HEADER(2). */ typedef struct { DGNElemCore core; /* must be at first position ! */ int totlength; /*!< Total length of cell in words, excluding the first 19 words (header + totlength field) */ char name[7]; /*!< Cell name */ unsigned short cclass; /*!< Class bitmap */ unsigned short levels[4]; /*!< Levels used in cell */ DGNPoint rnglow; /*!< X/Y/Z minimums for cell */ DGNPoint rnghigh; /*!< X/Y/Z maximums for cell */ double trans[9]; /*!< 2D/3D Transformation Matrix */ DGNPoint origin; /*!< Cell Origin */ double xscale; double yscale; double rotation; } DGNElemCellHeader; /** * Cell Library. * * The core.stype code is DGNST_CELL_LIBRARY. * * Returned for DGNT_CELL_LIBRARY(1). */ typedef struct { DGNElemCore core; /* must be at first position ! */ short celltype; /*!< Cell type. */ short attindx; /*!< Attribute linkage. */ char name[7]; /*!< Cell name */ int numwords; /*!< Number of words in cell definition */ short dispsymb; /*!< Display symbol */ unsigned short cclass; /*!< Class bitmap */ unsigned short levels[4]; /*!< Levels used in cell */ char description[28]; /*!< Description */ } DGNElemCellLibrary; /** * Shared Cell Definition. * * The core.stype code is DGNST_SHARED_CELL_DEFN. * * Returned for DGNT_SHARED_CELL_DEFN(2). */ typedef struct { DGNElemCore core; /* must be at first position ! */ int totlength; /*!< Total length of cell in words, excluding the first 19 words (header + totlength field) */ // FIXME: Most of the contents of this element type is currently // unknown. Please get in touch with the authors if you have // information about how to decode this element. } DGNElemSharedCellDefn; typedef union { char *string; GInt32 integer; double real; } tagValueUnion; /** * Tag Value. * * The core.stype code is DGNST_TAG_VALUE. * * Returned for DGNT_TAG_VALUE(37). */ typedef struct { DGNElemCore core; /* must be at first position ! */ int tagType; /*!< Tag type indicator, DGNTT_* */ int tagSet; /*!< Which tag set does this relate to? */ int tagIndex; /*!< Tag index within tag set. */ int tagLength; /*!< Length of tag information (text) */ tagValueUnion tagValue; /*!< Textual value of tag */ } DGNElemTagValue; /** * Tag definition. * * Structure holding definition of one tag within a DGNTagSet. */ typedef struct _DGNTagDef { char *name; /*!< Name of this tag. */ int id; /*!< Tag index/identifier. */ char *prompt; /*!< User prompt when requesting value. */ int type; /*!< Tag type (one of DGNTT_STRING(1), DGNTT_INTEGER(3) or DGNTT_FLOAT(4). */ tagValueUnion defaultValue; /*!< Default tag value */ } DGNTagDef; #define DGNTT_STRING 1 #define DGNTT_INTEGER 3 #define DGNTT_FLOAT 4 /** * Tag Set. * * The core.stype code is DGNST_TAG_SET. * * Returned for DGNT_APPLICATION_ELEM(66), Level: 24. */ typedef struct { DGNElemCore core; /* must be at first position ! */ int tagCount; /*!< Number of tags in tagList. */ int tagSet; /*!< Tag set index. */ int flags; /*!< Tag flags - not too much known. */ char *tagSetName; /*!< Tag set name. */ DGNTagDef *tagList; /*!< List of tag definitions in this set. */ } DGNElemTagSet; /** * Cone element * * The core.stype code is DGNST_CONE. * * Used for: DGNT_CONE(23) */ typedef struct { DGNElemCore core; /* must be at first position ! */ short unknown; /*!< Unknown data */ int quat[4]; /*!< Orientation quaternion */ DGNPoint center_1; /*!< center of first circle */ double radius_1; /*!< radius of first circle */ DGNPoint center_2; /*!< center of second circle */ double radius_2; /*!< radius of second circle */ } DGNElemCone; /** * Text Node Header. * * The core.stype code is DGNST_TEXT_NODE. * * Used for DGNT_TEXT_NODE (7). * First fields (up to numelems) are compatible with DGNT_COMPLEX_HEADER (7), * \sa DGNAddRawAttrLink() */ typedef struct { DGNElemCore core; /* must be at first position ! */ int totlength; /*!< Total length of the node (bytes = totlength * 2 + 38) */ int numelems; /*!< Number of text strings */ int node_number; /*!< text node number */ short max_length; /*!< maximum length allowed, characters */ short max_used; /*!< maximum length used */ short font_id; /*!< text font used */ short justification; /*!< justification type, see DGNJ_ */ long line_spacing; /*!< spacing between text strings */ double length_mult; /*!< length multiplier */ double height_mult; /*!< height multiplier */ double rotation; /*!< rotation angle (2d)*/ DGNPoint origin; /*!< Snap origin (as defined by user) */ } DGNElemTextNode; /** * B-Spline Surface Header element * * The core.stype code is DGNST_BSPLINE_SURFACE_HEADER. * * Used for: DGNT_BSPLINE_SURFACE_HEADER(24) */ typedef struct { DGNElemCore core; /* must be at first position ! */ long desc_words; /*!< Total length of B-Spline surface in words, excluding the first 20 words (header + desc_words field) */ unsigned char curve_type; /*!< curve type */ unsigned char u_order; /*!< B-spline U order: 2-15 */ unsigned short u_properties; /*!< surface U properties: ORing of DGNBSC_ flags */ short num_poles_u; /*!< number of poles */ short num_knots_u; /*!< number of knots */ short rule_lines_u; /*!< number of rule lines */ unsigned char v_order; /*!< B-spline V order: 2-15 */ unsigned short v_properties; /*!< surface V properties: Oring of DGNBSS_ flags */ short num_poles_v; /*!< number of poles */ short num_knots_v; /*!< number of knots */ short rule_lines_v; /*!< number of rule lines */ short num_bounds; /*!< number of boundaries */ } DGNElemBSplineSurfaceHeader; /** * B-Spline Curve Header element * * The core.stype code is DGNST_BSPLINE_CURVE_HEADER. * * Used for: DGNT_BSPLINE_CURVE_HEADER(27) */ typedef struct { DGNElemCore core; /* must be at first position ! */ long desc_words; /*!< Total length of B-Spline curve in words, excluding the first 20 words (header + desc_words field) */ unsigned char order; /*!< B-spline order: 2-15 */ unsigned char properties; /*!< Properties: ORing of DGNBSC_ flags */ unsigned char curve_type; /*!< curve type */ short num_poles; /*!< number of poles, max. 101 */ short num_knots; /*!< number of knots */ } DGNElemBSplineCurveHeader; /** * B-Spline Surface Boundary element * * The core.stype code is DGNST_BSPLINE_SURFACE_BOUNDARY * * Used for: DGNT_BSPLINE_SURFACE_BOUNDARY(25) */ typedef struct { DGNElemCore core; /* must be at first position ! */ short number; /*!< boundary number */ short numverts; /*!< number of boundary vertices */ DGNPoint vertices[1]; /*!< Array of 1 or more 2D boundary vertices (in UV space) */ } DGNElemBSplineSurfaceBoundary; /** * B-Spline Knot/Weight element * * The core.stype code is DGNST_KNOT_WEIGHT * * Used for: DGNT_BSPLINE_KNOT(26), DGNT_BSPLINE_WEIGHT_FACTOR(28) */ typedef struct { DGNElemCore core; /* must be at first position ! */ float array[1]; /*!< array (variable length). Length is given in the corresponding B-Spline header. */ } DGNElemKnotWeight; /* -------------------------------------------------------------------- */ /* Structure types */ /* -------------------------------------------------------------------- */ /** DGNElemCore style: Element uses DGNElemCore structure */ #define DGNST_CORE 1 /** DGNElemCore style: Element uses DGNElemMultiPoint structure */ #define DGNST_MULTIPOINT 2 /** DGNElemCore style: Element uses DGNElemColorTable structure */ #define DGNST_COLORTABLE 3 /** DGNElemCore style: Element uses DGNElemTCB structure */ #define DGNST_TCB 4 /** DGNElemCore style: Element uses DGNElemArc structure */ #define DGNST_ARC 5 /** DGNElemCore style: Element uses DGNElemText structure */ #define DGNST_TEXT 6 /** DGNElemCore style: Element uses DGNElemComplexHeader structure */ #define DGNST_COMPLEX_HEADER 7 /** DGNElemCore style: Element uses DGNElemCellHeader structure */ #define DGNST_CELL_HEADER 8 /** DGNElemCore style: Element uses DGNElemTagValue structure */ #define DGNST_TAG_VALUE 9 /** DGNElemCore style: Element uses DGNElemTagSet structure */ #define DGNST_TAG_SET 10 /** DGNElemCore style: Element uses DGNElemCellLibrary structure */ #define DGNST_CELL_LIBRARY 11 /** DGNElemCore style: Element uses DGNElemCone structure */ #define DGNST_CONE 12 /** DGNElemCore style: Element uses DGNElemTextNode structure */ #define DGNST_TEXT_NODE 13 /** DGNElemCore style: Element uses DGNElemBSplineSurfaceHeader structure */ #define DGNST_BSPLINE_SURFACE_HEADER 14 /** DGNElemCore style: Element uses DGNElemBSplineCurveHeader structure */ #define DGNST_BSPLINE_CURVE_HEADER 15 /** DGNElemCore style: Element uses DGNElemBSplineSurfaceBoundary structure */ #define DGNST_BSPLINE_SURFACE_BOUNDARY 16 /** DGNElemCore style: Element uses DGNElemKnotWeight structure */ #define DGNST_KNOT_WEIGHT 17 /** DGNElemCore style: Element uses DGNElemSharedCellDefn structure */ #define DGNST_SHARED_CELL_DEFN 18 /* -------------------------------------------------------------------- */ /* Element types */ /* -------------------------------------------------------------------- */ #define DGNT_CELL_LIBRARY 1 #define DGNT_CELL_HEADER 2 #define DGNT_LINE 3 #define DGNT_LINE_STRING 4 #define DGNT_GROUP_DATA 5 #define DGNT_SHAPE 6 #define DGNT_TEXT_NODE 7 #define DGNT_DIGITIZER_SETUP 8 #define DGNT_TCB 9 #define DGNT_LEVEL_SYMBOLOGY 10 #define DGNT_CURVE 11 #define DGNT_COMPLEX_CHAIN_HEADER 12 #define DGNT_COMPLEX_SHAPE_HEADER 14 #define DGNT_ELLIPSE 15 #define DGNT_ARC 16 #define DGNT_TEXT 17 #define DGNT_3DSURFACE_HEADER 18 #define DGNT_3DSOLID_HEADER 19 #define DGNT_BSPLINE_POLE 21 #define DGNT_POINT_STRING 22 #define DGNT_BSPLINE_SURFACE_HEADER 24 #define DGNT_BSPLINE_SURFACE_BOUNDARY 25 #define DGNT_BSPLINE_KNOT 26 #define DGNT_BSPLINE_CURVE_HEADER 27 #define DGNT_BSPLINE_WEIGHT_FACTOR 28 #define DGNT_CONE 23 #define DGNT_SHARED_CELL_DEFN 34 #define DGNT_SHARED_CELL_ELEM 35 #define DGNT_TAG_VALUE 37 #define DGNT_APPLICATION_ELEM 66 /* -------------------------------------------------------------------- */ /* Line Styles */ /* -------------------------------------------------------------------- */ #define DGNS_SOLID 0 #define DGNS_DOTTED 1 #define DGNS_MEDIUM_DASH 2 #define DGNS_LONG_DASH 3 #define DGNS_DOT_DASH 4 #define DGNS_SHORT_DASH 5 #define DGNS_DASH_DOUBLE_DOT 6 #define DGNS_LONG_DASH_SHORT_DASH 7 /* -------------------------------------------------------------------- */ /* 3D Surface Types */ /* -------------------------------------------------------------------- */ #define DGNSUT_SURFACE_OF_PROJECTION 0 #define DGNSUT_BOUNDED_PLANE 1 #define DGNSUT_BOUNDED_PLANE2 2 #define DGNSUT_RIGHT_CIRCULAR_CYLINDER 3 #define DGNSUT_RIGHT_CIRCULAR_CONE 4 #define DGNSUT_TABULATED_CYLINDER 5 #define DGNSUT_TABULATED_CONE 6 #define DGNSUT_CONVOLUTE 7 #define DGNSUT_SURFACE_OF_REVOLUTION 8 #define DGNSUT_WARPED_SURFACE 9 /* -------------------------------------------------------------------- */ /* 3D Solid Types */ /* -------------------------------------------------------------------- */ #define DGNSOT_VOLUME_OF_PROJECTION 0 #define DGNSOT_VOLUME_OF_REVOLUTION 1 #define DGNSOT_BOUNDED_VOLUME 2 /* -------------------------------------------------------------------- */ /* Class */ /* -------------------------------------------------------------------- */ #define DGNC_PRIMARY 0 #define DGNC_PATTERN_COMPONENT 1 #define DGNC_CONSTRUCTION_ELEMENT 2 #define DGNC_DIMENSION_ELEMENT 3 #define DGNC_PRIMARY_RULE_ELEMENT 4 #define DGNC_LINEAR_PATTERNED_ELEMENT 5 #define DGNC_CONSTRUCTION_RULE_ELEMENT 6 /* -------------------------------------------------------------------- */ /* Group Data level numbers. */ /* */ /* These are symbolic values for the typ 5 (DGNT_GROUP_DATA) */ /* level values that have special meanings. */ /* -------------------------------------------------------------------- */ #define DGN_GDL_COLOR_TABLE 1 #define DGN_GDL_NAMED_VIEW 3 #define DGN_GDL_REF_FILE 9 /* -------------------------------------------------------------------- */ /* Word 17 property flags. */ /* -------------------------------------------------------------------- */ #define DGNPF_HOLE 0x8000 #define DGNPF_SNAPPABLE 0x4000 #define DGNPF_PLANAR 0x2000 #define DGNPF_ORIENTATION 0x1000 #define DGNPF_ATTRIBUTES 0x0800 #define DGNPF_MODIFIED 0x0400 #define DGNPF_NEW 0x0200 #define DGNPF_LOCKED 0x0100 #define DGNPF_CLASS 0x000f /* -------------------------------------------------------------------- */ /* DGNElementInfo flag values. */ /* -------------------------------------------------------------------- */ #define DGNEIF_DELETED 0x01 #define DGNEIF_COMPLEX 0x02 /* -------------------------------------------------------------------- */ /* Justifications */ /* -------------------------------------------------------------------- */ #define DGNJ_LEFT_TOP 0 #define DGNJ_LEFT_CENTER 1 #define DGNJ_LEFT_BOTTOM 2 #define DGNJ_LEFTMARGIN_TOP 3 /* text node header only */ #define DGNJ_LEFTMARGIN_CENTER 4 /* text node header only */ #define DGNJ_LEFTMARGIN_BOTTOM 5 /* text node header only */ #define DGNJ_CENTER_TOP 6 #define DGNJ_CENTER_CENTER 7 #define DGNJ_CENTER_BOTTOM 8 #define DGNJ_RIGHTMARGIN_TOP 9 /* text node header only */ #define DGNJ_RIGHTMARGIN_CENTER 10 /* text node header only */ #define DGNJ_RIGHTMARGIN_BOTTOM 11 /* text node header only */ #define DGNJ_RIGHT_TOP 12 #define DGNJ_RIGHT_CENTER 13 #define DGNJ_RIGHT_BOTTOM 14 /* -------------------------------------------------------------------- */ /* DGN file reading options. */ /* -------------------------------------------------------------------- */ #define DGNO_CAPTURE_RAW_DATA 0x01 /* -------------------------------------------------------------------- */ /* Known attribute linkage types, including my synthetic ones. */ /* -------------------------------------------------------------------- */ #define DGNLT_DMRS 0x0000 #define DGNLT_INFORMIX 0x3848 #define DGNLT_ODBC 0x5e62 #define DGNLT_ORACLE 0x6091 #define DGNLT_RIS 0x71FB #define DGNLT_SYBASE 0x4f58 #define DGNLT_XBASE 0x1971 #define DGNLT_SHAPE_FILL 0x0041 #define DGNLT_ASSOC_ID 0x7D2F /* -------------------------------------------------------------------- */ /* File creation options. */ /* -------------------------------------------------------------------- */ #define DGNCF_USE_SEED_UNITS 0x01 #define DGNCF_USE_SEED_ORIGIN 0x02 #define DGNCF_COPY_SEED_FILE_COLOR_TABLE 0x04 #define DGNCF_COPY_WHOLE_SEED_FILE 0x08 /* -------------------------------------------------------------------- */ /* B-Spline Curve flags. Also used for U-direction of surfaces */ /* -------------------------------------------------------------------- */ #define DGNBSC_CURVE_DISPLAY 0x10 #define DGNBSC_POLY_DISPLAY 0x20 #define DGNBSC_RATIONAL 0x40 #define DGNBSC_CLOSED 0x80 /* -------------------------------------------------------------------- */ /* B-Spline Curve flags for V-direction of surfaces. */ /* -------------------------------------------------------------------- */ #define DGNBSS_ARC_SPACING 0x40 #define DGNBSS_CLOSED 0x80 /* -------------------------------------------------------------------- */ /* API */ /* -------------------------------------------------------------------- */ /** Opaque handle representing DGN file, used with DGN API. */ typedef void *DGNHandle; DGNHandle CPL_DLL DGNOpen(const char *, int); void CPL_DLL DGNSetOptions(DGNHandle, int); int CPL_DLL DGNTestOpen(GByte *, int); const DGNElementInfo CPL_DLL *DGNGetElementIndex(DGNHandle, int *); int CPL_DLL DGNGetExtents(DGNHandle, double *); int CPL_DLL DGNGetDimension(DGNHandle); DGNElemCore CPL_DLL *DGNReadElement(DGNHandle); void CPL_DLL DGNFreeElement(DGNHandle, DGNElemCore *); void CPL_DLL DGNRewind(DGNHandle); int CPL_DLL DGNGotoElement(DGNHandle, int); void CPL_DLL DGNClose(DGNHandle); int CPL_DLL DGNLoadTCB(DGNHandle); int CPL_DLL DGNLookupColor(DGNHandle, int, int *, int *, int *); int CPL_DLL DGNGetShapeFillInfo(DGNHandle, DGNElemCore *, int *); int CPL_DLL DGNGetAssocID(DGNHandle, DGNElemCore *); int CPL_DLL DGNGetElementExtents(DGNHandle, DGNElemCore *, DGNPoint *, DGNPoint *); void CPL_DLL DGNDumpElement(DGNHandle, DGNElemCore *, FILE *); const char CPL_DLL *DGNTypeToName(int); void CPL_DLL DGNRotationToQuaternion(double, int *); void CPL_DLL DGNQuaternionToMatrix(int *, float *); int CPL_DLL DGNStrokeArc(DGNHandle, DGNElemArc *, int, DGNPoint *); int CPL_DLL DGNStrokeCurve(DGNHandle, DGNElemMultiPoint *, int, DGNPoint *); void CPL_DLL DGNSetSpatialFilter(DGNHandle hDGN, double dfXMin, double dfYMin, double dfXMax, double dfYMax); int CPL_DLL DGNGetAttrLinkSize(DGNHandle, DGNElemCore *, int); unsigned char CPL_DLL *DGNGetLinkage(DGNHandle hDGN, DGNElemCore *psElement, int iIndex, int *pnLinkageType, int *pnEntityNum, int *pnMSLink, int *pnLinkSize); /* Write API */ int CPL_DLL DGNWriteElement(DGNHandle, DGNElemCore *); int CPL_DLL DGNResizeElement(DGNHandle, DGNElemCore *, int); DGNHandle CPL_DLL DGNCreate(const char *pszNewFilename, const char *pszSeedFile, int nCreationFlags, double dfOriginX, double dfOriginY, double dfOriginZ, int nMasterUnitPerSubUnit, int nUORPerSubUnit, const char *pszMasterUnits, const char *pszSubUnits); DGNElemCore CPL_DLL *DGNCloneElement(DGNHandle hDGNSrc, DGNHandle hDGNDst, DGNElemCore *psSrcElement); int CPL_DLL DGNUpdateElemCore(DGNHandle hDGN, DGNElemCore *psElement, int nLevel, int nGraphicGroup, int nColor, int nWeight, int nStyle); int CPL_DLL DGNUpdateElemCoreExtended(DGNHandle hDGN, DGNElemCore *psElement); DGNElemCore CPL_DLL *DGNCreateMultiPointElem(DGNHandle hDGN, int nType, int nPointCount, DGNPoint *pasVertices); DGNElemCore CPL_DLL *DGNCreateArcElem2D(DGNHandle hDGN, int nType, double dfOriginX, double dfOriginY, double dfPrimaryAxis, double dfSecondaryAxis, double dfRotation, double dfStartAngle, double dfSweepAngle); DGNElemCore CPL_DLL *DGNCreateArcElem(DGNHandle hDGN, int nType, double dfOriginX, double dfOriginY, double dfOriginZ, double dfPrimaryAxis, double dfSecondaryAxis, double dfStartAngle, double dfSweepAngle, double dfRotation, int *panQuaternion); DGNElemCore CPL_DLL *DGNCreateConeElem(DGNHandle hDGN, double center_1X, double center_1Y, double center_1Z, double radius_1, double center_2X, double center_2Y, double center_2Z, double radius_2, int *panQuaternion); DGNElemCore CPL_DLL *DGNCreateTextElem(DGNHandle hDGN, const char *pszText, int nFontId, int nJustification, double dfLengthMult, double dfHeightMult, double dfRotation, int *panQuaternion, double dfOriginX, double dfOriginY, double dfOriginZ); DGNElemCore CPL_DLL *DGNCreateColorTableElem(DGNHandle hDGN, int nScreenFlag, GByte abyColorInfo[256][3]); DGNElemCore CPL_DLL *DGNCreateComplexHeaderElem(DGNHandle hDGN, int nType, int nTotLength, int nNumElems); DGNElemCore CPL_DLL *DGNCreateComplexHeaderFromGroup(DGNHandle hDGN, int nType, int nNumElems, DGNElemCore **papsElems); DGNElemCore CPL_DLL *DGNCreateSolidHeaderElem(DGNHandle hDGN, int nType, int nSurfType, int nBoundElems, int nTotLength, int nNumElems); DGNElemCore CPL_DLL *DGNCreateSolidHeaderFromGroup(DGNHandle hDGN, int nType, int nSurfType, int nBoundElems, int nNumElems, DGNElemCore **papsElems); DGNElemCore CPL_DLL * DGNCreateCellHeaderElem(DGNHandle hDGN, int nTotLength, const char *pszName, short nClass, short *panLevels, DGNPoint *psRangeLow, DGNPoint *psRangeHigh, DGNPoint *psOrigin, double dfXScale, double dfYScale, double dfRotation); DGNElemCore CPL_DLL *DGNCreateCellHeaderFromGroup( DGNHandle hDGN, const char *pszName, short nClass, short *panLevels, int nNumElems, DGNElemCore **papsElems, DGNPoint *psOrigin, double dfXScale, double dfYScale, double dfRotation); int CPL_DLL DGNAddMSLink(DGNHandle hDGN, DGNElemCore *psElement, int nLinkageType, int nEntityNum, int nMSLink); int CPL_DLL DGNAddRawAttrLink(DGNHandle hDGN, DGNElemCore *psElement, int nLinkSize, unsigned char *pabyRawLinkData); int CPL_DLL DGNAddShapeFillInfo(DGNHandle hDGN, DGNElemCore *psElement, int nColor); int CPL_DLL DGNElemTypeHasDispHdr(int nElemType); CPL_C_END #endif /* ndef DGNLIB_H_INCLUDED */