/****************************************************************************** * * Project: Microstation DGN Access Library * Purpose: Application visible helper functions for parsing DGN information. * Author: Frank Warmerdam, warmerdam@pobox.com * ****************************************************************************** * Copyright (c) 2002, Avenza Systems Inc, http://www.avenza.com/ * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. ****************************************************************************/ #include "dgnlibp.h" CPL_CVSID("$Id: dgnhelp.cpp 7e07230bbff24eb333608de4dbd460b7312839d0 2017-12-11 19:08:47Z Even Rouault $") static const unsigned char abyDefaultPCT[256][3] = { {255,255,255}, {0,0,255}, {0,255,0}, {255,0,0}, {255,255,0}, {255,0,255}, {255,127,0}, {0,255,255}, {64,64,64}, {192,192,192}, {254,0,96}, {160,224,0}, {0,254,160}, {128,0,160}, {176,176,176}, {0,240,240}, {240,240,240}, {0,0,240}, {0,240,0}, {240,0,0}, {240,240,0}, {240,0,240}, {240,122,0}, {0,240,240}, {240,240,240}, {0,0,240}, {0,240,0}, {240,0,0}, {240,240,0}, {240,0,240}, {240,122,0}, {0,225,225}, {225,225,225}, {0,0,225}, {0,225,0}, {225,0,0}, {225,225,0}, {225,0,225}, {225,117,0}, {0,225,225}, {225,225,225}, {0,0,225}, {0,225,0}, {225,0,0}, {225,225,0}, {225,0,225}, {225,117,0}, {0,210,210}, {210,210,210}, {0,0,210}, {0,210,0}, {210,0,0}, {210,210,0}, {210,0,210}, {210,112,0}, {0,210,210}, {210,210,210}, {0,0,210}, {0,210,0}, {210,0,0}, {210,210,0}, {210,0,210}, {210,112,0}, {0,195,195}, {195,195,195}, {0,0,195}, {0,195,0}, {195,0,0}, {195,195,0}, {195,0,195}, {195,107,0}, {0,195,195}, {195,195,195}, {0,0,195}, {0,195,0}, {195,0,0}, {195,195,0}, {195,0,195}, {195,107,0}, {0,180,180}, {180,180,180}, {0,0,180}, {0,180,0}, {180,0,0}, {180,180,0}, {180,0,180}, {180,102,0}, {0,180,180}, {180,180,180}, {0,0,180}, {0,180,0}, {180,0,0}, {180,180,0}, {180,0,180}, {180,102,0}, {0,165,165}, {165,165,165}, {0,0,165}, {0,165,0}, {165,0,0}, {165,165,0}, {165,0,165}, {165,97,0}, {0,165,165}, {165,165,165}, {0,0,165}, {0,165,0}, {165,0,0}, {165,165,0}, {165,0,165}, {165,97,0}, {0,150,150}, {150,150,150}, {0,0,150}, {0,150,0}, {150,0,0}, {150,150,0}, {150,0,150}, {150,92,0}, {0,150,150}, {150,150,150}, {0,0,150}, {0,150,0}, {150,0,0}, {150,150,0}, {150,0,150}, {150,92,0}, {0,135,135}, {135,135,135}, {0,0,135}, {0,135,0}, {135,0,0}, {135,135,0}, {135,0,135}, {135,87,0}, {0,135,135}, {135,135,135}, {0,0,135}, {0,135,0}, {135,0,0}, {135,135,0}, {135,0,135}, {135,87,0}, {0,120,120}, {120,120,120}, {0,0,120}, {0,120,0}, {120,0,0}, {120,120,0}, {120,0,120}, {120,82,0}, {0,120,120}, {120,120,120}, {0,0,120}, {0,120,0}, {120,0,0}, {120,120,0}, {120,0,120}, {120,82,0}, {0,105,105}, {105,105,105}, {0,0,105}, {0,105,0}, {105,0,0}, {105,105,0}, {105,0,105}, {105,77,0}, {0,105,105}, {105,105,105}, {0,0,105}, {0,105,0}, {105,0,0}, {105,105,0}, {105,0,105}, {105,77,0}, {0,90,90}, {90,90,90}, {0,0,90}, {0,90,0}, {90,0,0}, {90,90,0}, {90,0,90}, {90,72,0}, {0,90,90}, {90,90,90}, {0,0,90}, {0,90,0}, {90,0,0}, {90,90,0}, {90,0,90}, {90,72,0}, {0,75,75}, {75,75,75}, {0,0,75}, {0,75,0}, {75,0,0}, {75,75,0}, {75,0,75}, {75,67,0}, {0,75,75}, {75,75,75}, {0,0,75}, {0,75,0}, {75,0,0}, {75,75,0}, {75,0,75}, {75,67,0}, {0,60,60}, {60,60,60}, {0,0,60}, {0,60,0}, {60,0,0}, {60,60,0}, {60,0,60}, {60,62,0}, {0,60,60}, {60,60,60}, {0,0,60}, {0,60,0}, {60,0,0}, {60,60,0}, {60,0,60}, {60,62,0}, {0,45,45}, {45,45,45}, {0,0,45}, {0,45,0}, {45,0,0}, {45,45,0}, {45,0,45}, {45,57,0}, {0,45,45}, {45,45,45}, {0,0,45}, {0,45,0}, {45,0,0}, {45,45,0}, {45,0,45}, {45,57,0}, {0,30,30}, {30,30,30}, {0,0,30}, {0,30,0}, {30,0,0}, {30,30,0}, {30,0,30}, {30,52,0}, {0,30,30}, {30,30,30}, {0,0,30}, {0,30,0}, {30,0,0}, {30,30,0}, {30,0,30}, {192,192,192}, {28,0,100} }; /************************************************************************/ /* DGNLookupColor() */ /************************************************************************/ /** * Translate color index into RGB values. * * If no color table has yet been encountered in the file a hard-coded * "default" color table will be used. This seems to be what Microstation * uses as a color table when there isn't one in a DGN file but I am not * absolutely convinced it is appropriate. * * @param hDGN the file. * @param color_index the color index to lookup. * @param red location to put red component. * @param green location to put green component. * @param blue location to put blue component. * * @return TRUE on success or FALSE on failure. May fail if color_index is * out of range. */ int DGNLookupColor( DGNHandle hDGN, int color_index, int * red, int * green, int * blue ) { if( color_index < 0 || color_index > 255 ) return FALSE; DGNInfo *psDGN = (DGNInfo *) hDGN; if( !psDGN->got_color_table ) { *red = abyDefaultPCT[color_index][0]; *green = abyDefaultPCT[color_index][1]; *blue = abyDefaultPCT[color_index][2]; } else { *red = psDGN->color_table[color_index][0]; *green = psDGN->color_table[color_index][1]; *blue = psDGN->color_table[color_index][2]; } return TRUE; } /************************************************************************/ /* DGNGetShapeFillInfo() */ /************************************************************************/ /** * Fetch fill color for a shape. * * This method will check for a 0x0041 user attribute linkaged with fill * color information for the element. If found the function returns TRUE, * and places the fill color in *pnColor, otherwise FALSE is returned and * *pnColor is not updated. * * @param hDGN the file. * @param psElem the element. * @param pnColor the location to return the fill color. * * @return TRUE on success or FALSE on failure. */ int DGNGetShapeFillInfo( DGNHandle hDGN, DGNElemCore *psElem, int *pnColor ) { for( int iLink = 0; true; iLink++ ) { int nLinkType = 0; int nLinkSize = 0; unsigned char *pabyData = DGNGetLinkage( hDGN, psElem, iLink, &nLinkType, nullptr, nullptr, &nLinkSize ); if( pabyData == nullptr ) return FALSE; if( nLinkType == DGNLT_SHAPE_FILL && nLinkSize >= 9 ) { *pnColor = pabyData[8]; return TRUE; } } } /************************************************************************/ /* DGNGetAssocID() */ /************************************************************************/ /** * Fetch association id for an element. * * This method will check if an element has an association id, and if so * returns it, otherwise returning -1. Association ids are kept as a * user attribute linkage where present. * * @param hDGN the file. * @param psElem the element. * * @return The id or -1 on failure. */ int DGNGetAssocID( DGNHandle hDGN, DGNElemCore *psElem ) { for( int iLink = 0; true; iLink++ ) { int nLinkType = 0; int nLinkSize = 0; unsigned char *pabyData = DGNGetLinkage( hDGN, psElem, iLink, &nLinkType, nullptr, nullptr, &nLinkSize ); if( pabyData == nullptr ) return -1; if( nLinkType == DGNLT_ASSOC_ID && nLinkSize >= 8 ) { return pabyData[4] + pabyData[5] * 256 + pabyData[6]*256*256 + pabyData[7] * 256*256*256; } } } /************************************************************************/ /* DGNRad50ToAscii() */ /* */ /* Convert one 16-bits Radix-50 to ASCII (3 chars). */ /************************************************************************/ void DGNRad50ToAscii(unsigned short sRad50, char *str ) { char ch = '\0'; unsigned short saQuots[3] = { 1600, 40,1 }; for( int i = 0; i < 3; i++ ) { unsigned short sValue = sRad50; sValue /= saQuots[i]; /* Map 0..39 to ASCII */ if (sValue==0) ch = ' '; /* space */ else if (sValue >= 1 && sValue <= 26) ch = (char) (sValue-1+'A');/* printable alpha A..Z */ else if (sValue == 27) ch = '$'; /* dollar */ else if (sValue == 28) ch = '.'; /* period */ else if (sValue == 29) ch = ' '; /* unused char, emit a space instead */ else if (sValue >= 30 && sValue <= 39) ch = (char) (sValue-30+'0'); /* digit 0..9 */ *str = ch; str++; sRad50-=(sValue*saQuots[i]); } /* Do zero-terminate */ *str = '\0'; } /************************************************************************/ /* DGNAsciiToRad50() */ /************************************************************************/ void DGNAsciiToRad50( const char *str, unsigned short *pRad50 ) { unsigned short rad50 = 0; for( int i = 0; i < 3; i++ ) { if( i >= (int) strlen(str) ) { rad50 = rad50 * 40; continue; } unsigned short value = 0; if( str[i] == '$' ) value = 27; else if( str[i] == '.' ) value = 28; else if( str[i] == ' ' ) value = 29; else if( str[i] >= '0' && str[i] <= '9' ) value = str[i] - '0' + 30; else if( str[i] >= 'a' && str[i] <= 'z' ) value = str[i] - 'a' + 1; else if( str[i] >= 'A' && str[i] <= 'Z' ) value = str[i] - 'A' + 1; else value = 0; rad50 = rad50 * 40 + value; } *pRad50 = rad50; } /************************************************************************/ /* DGNGetLineStyleName() */ /* */ /* Read the line style name from symbol table. */ /* The got name is stored in psLine. */ /************************************************************************/ #ifdef unused int DGNGetLineStyleName(CPL_UNUSED DGNInfo *psDGN, DGNElemMultiPoint *psLine, char szLineStyle[65] ) { if (psLine->core.attr_bytes > 0 && psLine->core.attr_data[1] == 0x10 && psLine->core.attr_data[2] == 0xf9 && psLine->core.attr_data[3] == 0x79) { #ifdef notdef for (int i=0;ibuffer + 0x21e5 + i) == psLine->core.attr_data[4] && *((unsigned char*)psDGN->buffer + 0x21e6 + i) == psLine->core.attr_data[5] && *((unsigned char*)psDGN->buffer + 0x21e7 + i) == psLine->core.attr_data[6] && *((unsigned char*)psDGN->buffer + 0x21e8 + i) == psLine->core.attr_data[7]) { memcpy( szLineStyle, (unsigned char*)psDGN->buffer + 0x21e9 + i, 64 ); szLineStyle[64] = '\0'; return TRUE; } } #endif return FALSE; } else { szLineStyle[0] = '\0'; return FALSE; } } #endif /************************************************************************/ /* DGNDumpElement() */ /************************************************************************/ /** * Emit textual report of an element. * * This function exists primarily for debugging, and will produce a textual * report about any element type to the designated file. * * @param hDGN the file from which the element originated. * @param psElement the element to report on. * @param fp the file (such as stdout) to report the element information to. */ void DGNDumpElement( DGNHandle hDGN, DGNElemCore *psElement, FILE *fp ) { DGNInfo *psInfo = (DGNInfo *) hDGN; fprintf( fp, "\n" ); fprintf( fp, "Element:%-12s Level:%2d id:%-6d ", DGNTypeToName( psElement->type ), psElement->level, psElement->element_id ); if( psElement->complex ) fprintf( fp, "(Complex) " ); if( psElement->deleted ) fprintf( fp, "(DELETED) " ); fprintf( fp, "\n" ); fprintf( fp, " offset=%d size=%d bytes\n", psElement->offset, psElement->size ); fprintf( fp, " graphic_group:%-3d color:%d weight:%d style:%d\n", psElement->graphic_group, psElement->color, psElement->weight, psElement->style ); if( psElement->properties != 0 ) { fprintf( fp, " properties=%d", psElement->properties ); if( psElement->properties & DGNPF_HOLE ) fprintf( fp, ",HOLE" ); if( psElement->properties & DGNPF_SNAPPABLE ) fprintf( fp, ",SNAPPABLE" ); if( psElement->properties & DGNPF_PLANAR ) fprintf( fp, ",PLANAR" ); if( psElement->properties & DGNPF_ORIENTATION ) fprintf( fp, ",ORIENTATION" ); if( psElement->properties & DGNPF_ATTRIBUTES ) fprintf( fp, ",ATTRIBUTES" ); if( psElement->properties & DGNPF_MODIFIED ) fprintf( fp, ",MODIFIED" ); if( psElement->properties & DGNPF_NEW ) fprintf( fp, ",NEW" ); if( psElement->properties & DGNPF_LOCKED ) fprintf( fp, ",LOCKED" ); int nClass = psElement->properties & DGNPF_CLASS; if( nClass == DGNC_PATTERN_COMPONENT ) fprintf( fp, ",PATTERN_COMPONENT" ); else if( nClass == DGNC_CONSTRUCTION_ELEMENT ) fprintf( fp, ",CONSTRUCTION ELEMENT" ); else if( nClass == DGNC_DIMENSION_ELEMENT ) fprintf( fp, ",DIMENSION ELEMENT" ); else if( nClass == DGNC_PRIMARY_RULE_ELEMENT ) fprintf( fp, ",PRIMARY RULE ELEMENT" ); else if( nClass == DGNC_LINEAR_PATTERNED_ELEMENT ) fprintf( fp, ",LINEAR PATTERNED ELEMENT" ); else if( nClass == DGNC_CONSTRUCTION_RULE_ELEMENT ) fprintf( fp, ",CONSTRUCTION_RULE_ELEMENT" ); fprintf( fp, "\n" ); } switch( psElement->stype ) { case DGNST_MULTIPOINT: { DGNElemMultiPoint *psLine = (DGNElemMultiPoint *) psElement; for( int i = 0; i < psLine->num_vertices; i++ ) fprintf( fp, " (%.6f,%.6f,%.6f)\n", psLine->vertices[i].x, psLine->vertices[i].y, psLine->vertices[i].z ); } break; case DGNST_CELL_HEADER: { DGNElemCellHeader *psCell = (DGNElemCellHeader*) psElement; fprintf( fp, " totlength=%d, name=%s, class=%x, levels=%02x%02x%02x%02x\n", psCell->totlength, psCell->name, psCell->cclass, psCell->levels[0], psCell->levels[1], psCell->levels[2], psCell->levels[3] ); fprintf( fp, " rnglow=(%.5f,%.5f,%.5f)\n" " rnghigh=(%.5f,%.5f,%.5f)\n", psCell->rnglow.x, psCell->rnglow.y, psCell->rnglow.z, psCell->rnghigh.x, psCell->rnghigh.y, psCell->rnghigh.z ); fprintf( fp, " origin=(%.5f,%.5f,%.5f)\n", psCell->origin.x, psCell->origin.y, psCell->origin.z); if( psInfo->dimension == 2 ) fprintf( fp, " xscale=%g, yscale=%g, rotation=%g\n", psCell->xscale, psCell->yscale, psCell->rotation ); else fprintf( fp, " trans=%g,%g,%g,%g,%g,%g,%g,%g,%g\n", psCell->trans[0], psCell->trans[1], psCell->trans[2], psCell->trans[3], psCell->trans[4], psCell->trans[5], psCell->trans[6], psCell->trans[7], psCell->trans[8] ); } break; case DGNST_CELL_LIBRARY: { DGNElemCellLibrary *psCell = (DGNElemCellLibrary*) psElement; fprintf( fp, " name=%s, class=%x, levels=%02x%02x%02x%02x, numwords=%d\n", psCell->name, psCell->cclass, psCell->levels[0], psCell->levels[1], psCell->levels[2], psCell->levels[3], psCell->numwords ); fprintf( fp, " dispsymb=%d, description=%s\n", psCell->dispsymb, psCell->description ); } break; case DGNST_SHARED_CELL_DEFN: { DGNElemSharedCellDefn *psShared = (DGNElemSharedCellDefn *) psElement; fprintf( fp, " totlength=%d\n", psShared->totlength); } break; case DGNST_ARC: { DGNElemArc *psArc = (DGNElemArc *) psElement; if( psInfo->dimension == 2 ) fprintf( fp, " origin=(%.5f,%.5f), rotation=%f\n", psArc->origin.x, psArc->origin.y, psArc->rotation ); else fprintf( fp, " origin=(%.5f,%.5f,%.5f), quat=%d,%d,%d,%d\n", psArc->origin.x, psArc->origin.y, psArc->origin.z, psArc->quat[0], psArc->quat[1], psArc->quat[2], psArc->quat[3] ); fprintf( fp, " axes=(%.5f,%.5f), start angle=%f, sweep=%f\n", psArc->primary_axis, psArc->secondary_axis, psArc->startang, psArc->sweepang ); } break; case DGNST_TEXT: { DGNElemText *psText = (DGNElemText *) psElement; fprintf( fp, " origin=(%.5f,%.5f), rotation=%f\n" " font=%d, just=%d, length_mult=%g, height_mult=%g\n" " string = \"%s\"\n", psText->origin.x, psText->origin.y, psText->rotation, psText->font_id, psText->justification, psText->length_mult, psText->height_mult, psText->string ); } break; case DGNST_TEXT_NODE: { DGNElemTextNode *psNode = (DGNElemTextNode *) psElement; fprintf( fp, " totlength=%d, num_texts=%d\n", psNode->totlength, psNode->numelems ); fprintf( fp, " origin=(%.5f,%.5f), rotation=%f\n" " font=%d, just=%d, length_mult=%g, height_mult=%g\n", psNode->origin.x, psNode->origin.y, psNode->rotation, psNode->font_id, psNode->justification, psNode->length_mult, psNode->height_mult ); fprintf( fp, " max_length=%d, used=%d,", psNode->max_length, psNode->max_used ); fprintf( fp, " node_number=%d\n", psNode->node_number ); } break; case DGNST_COMPLEX_HEADER: { DGNElemComplexHeader *psHdr = (DGNElemComplexHeader *) psElement; fprintf( fp, " totlength=%d, numelems=%d\n", psHdr->totlength, psHdr->numelems ); if (psElement->type == DGNT_3DSOLID_HEADER || psElement->type == DGNT_3DSURFACE_HEADER) { fprintf( fp, " surftype=%d, boundelms=%d\n", psHdr->surftype, psHdr->boundelms ); } } break; case DGNST_COLORTABLE: { DGNElemColorTable *psCT = (DGNElemColorTable *) psElement; fprintf( fp, " screen_flag: %d\n", psCT->screen_flag ); for( int i = 0; i < 256; i++ ) { fprintf( fp, " %3d: (%3u,%3u,%3u)\n", i, psCT->color_info[i][0], psCT->color_info[i][1], psCT->color_info[i][2] ); } } break; case DGNST_TCB: { DGNElemTCB *psTCB = (DGNElemTCB *) psElement; fprintf( fp, " dimension = %d\n", psTCB->dimension ); fprintf( fp, " uor_per_subunit = %ld, subunits = `%s'\n", psTCB->uor_per_subunit, psTCB->sub_units ); fprintf( fp, " subunits_per_master = %ld, master units = `%s'\n", psTCB->subunits_per_master, psTCB->master_units ); fprintf( fp, " origin = (%.5f,%.5f,%.5f)\n", psTCB->origin_x, psTCB->origin_y, psTCB->origin_z ); for( int iView = 0; iView < 8; iView++ ) { DGNViewInfo *psView = psTCB->views + iView; fprintf(fp, " View%d: flags=%04X, levels=%02X%02X%02X%02X%02X%02X%02X%02X\n", iView, psView->flags, psView->levels[0], psView->levels[1], psView->levels[2], psView->levels[3], psView->levels[4], psView->levels[5], psView->levels[6], psView->levels[7] ); fprintf(fp, " origin=(%g,%g,%g)\n delta=(%g,%g,%g)\n", psView->origin.x, psView->origin.y, psView->origin.z, psView->delta.x, psView->delta.y, psView->delta.z ); fprintf(fp, " trans=(%g,%g,%g,%g,%g,%g,%g,%g,%g)\n", psView->transmatrx[0], psView->transmatrx[1], psView->transmatrx[2], psView->transmatrx[3], psView->transmatrx[4], psView->transmatrx[5], psView->transmatrx[6], psView->transmatrx[7], psView->transmatrx[8] ); } } break; case DGNST_TAG_SET: { DGNElemTagSet *psTagSet = (DGNElemTagSet*) psElement; fprintf( fp, " tagSetName=%s, tagSet=%d, tagCount=%d, flags=%d\n", psTagSet->tagSetName, psTagSet->tagSet, psTagSet->tagCount, psTagSet->flags ); for( int iTag = 0; iTag < psTagSet->tagCount; iTag++ ) { DGNTagDef *psTagDef = psTagSet->tagList + iTag; fprintf( fp, " %d: name=%s, type=%d, prompt=%s", psTagDef->id, psTagDef->name, psTagDef->type, psTagDef->prompt ); if( psTagDef->type == 1 ) fprintf( fp, ", default=%s\n", psTagDef->defaultValue.string ); else if( psTagDef->type == 3 || psTagDef->type == 5 ) fprintf( fp, ", default=%d\n", psTagDef->defaultValue.integer ); else if( psTagDef->type == 4 ) fprintf( fp, ", default=%g\n", psTagDef->defaultValue.real ); else fprintf( fp, ", default=\n" ); } } break; case DGNST_TAG_VALUE: { DGNElemTagValue *psTag = (DGNElemTagValue*) psElement; fprintf( fp, " tagType=%d, tagSet=%d, tagIndex=%d, tagLength=%d\n", psTag->tagType, psTag->tagSet, psTag->tagIndex, psTag->tagLength ); if( psTag->tagType == 1 ) fprintf( fp, " value=%s\n", psTag->tagValue.string ); else if( psTag->tagType == 3 ) fprintf( fp, " value=%d\n", psTag->tagValue.integer ); else if( psTag->tagType == 4 ) fprintf( fp, " value=%g\n", psTag->tagValue.real ); } break; case DGNST_CONE: { DGNElemCone *psCone = (DGNElemCone *) psElement; fprintf( fp, " center_1=(%g,%g,%g) radius=%g\n" " center_2=(%g,%g,%g) radius=%g\n" " quat=%d,%d,%d,%d unknown=%d\n", psCone->center_1.x, psCone->center_1.y, psCone->center_1.z, psCone->radius_1, psCone->center_2.x, psCone->center_2.y, psCone->center_2.z, psCone->radius_2, psCone->quat[0], psCone->quat[1], psCone->quat[2], psCone->quat[3], psCone->unknown ); } break; case DGNST_BSPLINE_SURFACE_HEADER: { DGNElemBSplineSurfaceHeader *psSpline = (DGNElemBSplineSurfaceHeader *) psElement; fprintf( fp, " desc_words=%ld, curve type=%u\n", psSpline->desc_words, psSpline->curve_type); fprintf( fp, " U: properties=%02x", psSpline->u_properties); if (psSpline->u_properties != 0) { if (psSpline->u_properties & DGNBSC_CURVE_DISPLAY) { fprintf(fp, ",CURVE_DISPLAY"); } if (psSpline->u_properties & DGNBSC_POLY_DISPLAY) { fprintf(fp, ",POLY_DISPLAY"); } if (psSpline->u_properties & DGNBSC_RATIONAL) { fprintf(fp, ",RATIONAL"); } if (psSpline->u_properties & DGNBSC_CLOSED) { fprintf(fp, ",CLOSED"); } } fprintf(fp, "\n"); fprintf( fp, " order=%u\n %d poles, %d knots, %d rule lines\n", psSpline->u_order, psSpline->num_poles_u, psSpline->num_knots_u, psSpline->rule_lines_u); fprintf( fp, " V: properties=%02x", psSpline->v_properties); if (psSpline->v_properties != 0) { if (psSpline->v_properties & DGNBSS_ARC_SPACING) { fprintf(fp, ",ARC_SPACING"); } if (psSpline->v_properties & DGNBSS_CLOSED) { fprintf(fp, ",CLOSED"); } } fprintf(fp, "\n"); fprintf( fp, " order=%u\n %d poles, %d knots, %d rule lines\n", psSpline->v_order, psSpline->num_poles_v, psSpline->num_knots_v, psSpline->rule_lines_v); } break; case DGNST_BSPLINE_CURVE_HEADER: { DGNElemBSplineCurveHeader *psSpline = (DGNElemBSplineCurveHeader *) psElement; fprintf( fp, " desc_words=%ld, curve type=%u\n" " properties=%02x", psSpline->desc_words, psSpline->curve_type, psSpline->properties); if (psSpline->properties != 0) { if (psSpline->properties & DGNBSC_CURVE_DISPLAY) { fprintf(fp, ",CURVE_DISPLAY"); } if (psSpline->properties & DGNBSC_POLY_DISPLAY) { fprintf(fp, ",POLY_DISPLAY"); } if (psSpline->properties & DGNBSC_RATIONAL) { fprintf(fp, ",RATIONAL"); } if (psSpline->properties & DGNBSC_CLOSED) { fprintf(fp, ",CLOSED"); } } fprintf(fp, "\n"); fprintf( fp, " order=%u\n %d poles, %d knots\n", psSpline->order, psSpline->num_poles, psSpline->num_knots); } break; case DGNST_BSPLINE_SURFACE_BOUNDARY: { DGNElemBSplineSurfaceBoundary *psBounds = (DGNElemBSplineSurfaceBoundary *) psElement; fprintf( fp, " boundary number=%d, # vertices=%d\n", psBounds->number, psBounds->numverts); for (int i=0;inumverts;i++) { fprintf( fp, " (%.6f,%.6f)\n", psBounds->vertices[i].x, psBounds->vertices[i].y); } } break; case DGNST_KNOT_WEIGHT: { DGNElemKnotWeight *psArray = (DGNElemKnotWeight *) psElement; int numelems = (psArray->core.size-36)/4; for (int i=0;iarray[i]); } } break; default: break; } if( psElement->attr_bytes > 0 ) { fprintf( fp, "Attributes (%d bytes):\n", psElement->attr_bytes ); for( int iLink = 0; true; iLink++ ) { int nLinkType = 0; int nEntityNum = 0; int nMSLink = 0; int nLinkSize = 0; unsigned char *pabyData = DGNGetLinkage( hDGN, psElement, iLink, &nLinkType, &nEntityNum, &nMSLink, &nLinkSize ); if( pabyData == nullptr ) break; fprintf( fp, "Type=0x%04x", nLinkType ); if( nMSLink != 0 || nEntityNum != 0 ) fprintf( fp, ", EntityNum=%d, MSLink=%d", nEntityNum, nMSLink ); int nBytes = static_cast(psElement->attr_data + psElement->attr_bytes - pabyData); if( nBytes < nLinkSize ) { CPLError( CE_Failure, CPLE_AppDefined, "Corrupt linkage, element id:%d, link:%d", psElement->element_id, iLink); fprintf(fp, " (Corrupt, declared size: %d, assuming size: %d)", nLinkSize, nBytes); nLinkSize = nBytes; } fprintf( fp, "\n 0x" ); for( int i = 0; i < nLinkSize; i++ ) fprintf( fp, "%02x", pabyData[i] ); fprintf( fp, "\n" ); } } } /************************************************************************/ /* DGNTypeToName() */ /************************************************************************/ /** * Convert type to name. * * Returns a human readable name for an element type such as DGNT_LINE. * * @param nType the DGNT_* type code to translate. * * @return a pointer to an internal string with the translation. This string * should not be modified or freed. */ const char *DGNTypeToName( int nType ) { static char szNumericResult[16] = {}; switch( nType ) { case DGNT_CELL_LIBRARY: return "Cell Library"; case DGNT_CELL_HEADER: return "Cell Header"; case DGNT_LINE: return "Line"; case DGNT_LINE_STRING: return "Line String"; case DGNT_POINT_STRING: return "Point String"; case DGNT_GROUP_DATA: return "Group Data"; case DGNT_SHAPE: return "Shape"; case DGNT_TEXT_NODE: return "Text Node"; case DGNT_DIGITIZER_SETUP: return "Digitizer Setup"; case DGNT_TCB: return "TCB"; case DGNT_LEVEL_SYMBOLOGY: return "Level Symbology"; case DGNT_CURVE: return "Curve"; case DGNT_COMPLEX_CHAIN_HEADER: return "Complex Chain Header"; case DGNT_COMPLEX_SHAPE_HEADER: return "Complex Shape Header"; case DGNT_ELLIPSE: return "Ellipse"; case DGNT_ARC: return "Arc"; case DGNT_TEXT: return "Text"; case DGNT_BSPLINE_POLE: return "B-Spline Pole"; case DGNT_BSPLINE_SURFACE_HEADER: return "B-Spline Surface Header"; case DGNT_BSPLINE_SURFACE_BOUNDARY: return "B-Spline Surface Boundary"; case DGNT_BSPLINE_KNOT: return "B-Spline Knot"; case DGNT_BSPLINE_CURVE_HEADER: return "B-Spline Curve Header"; case DGNT_BSPLINE_WEIGHT_FACTOR: return "B-Spline Weight Factor"; case DGNT_APPLICATION_ELEM: return "Application Element"; case DGNT_SHARED_CELL_DEFN: return "Shared Cell Definition"; case DGNT_SHARED_CELL_ELEM: return "Shared Cell Element"; case DGNT_TAG_VALUE: return "Tag Value"; case DGNT_CONE: return "Cone"; case DGNT_3DSURFACE_HEADER: return "3D Surface Header"; case DGNT_3DSOLID_HEADER: return "3D Solid Header"; default: snprintf( szNumericResult, sizeof(szNumericResult), "%d", nType ); return szNumericResult; } } /************************************************************************/ /* DGNGetAttrLinkSize() */ /************************************************************************/ /** * Get attribute linkage size. * * Returns the size, in bytes, of the attribute linkage starting at byte * offset nOffset. On failure a value of 0 is returned. * * @param hDGN the file from which the element originated. * @param psElement the element to report on. * @param nOffset byte offset within attribute data of linkage to check. * * @return size of linkage in bytes, or zero. */ int DGNGetAttrLinkSize( CPL_UNUSED DGNHandle hDGN, DGNElemCore *psElement, int nOffset ) { if( psElement->attr_bytes < nOffset + 4 ) return 0; /* DMRS Linkage */ if( (psElement->attr_data[nOffset+0] == 0 && psElement->attr_data[nOffset+1] == 0) || (psElement->attr_data[nOffset+0] == 0 && psElement->attr_data[nOffset+1] == 0x80) ) return 8; /* If low order bit of second byte is set, first byte is length */ if( psElement->attr_data[nOffset+1] & 0x10 ) return psElement->attr_data[nOffset+0] * 2 + 2; /* unknown */ return 0; } /************************************************************************/ /* DGNGetLinkage() */ /************************************************************************/ /** * Returns requested linkage raw data. * * A pointer to the raw data for the requested attribute linkage is returned * as well as (potentially) various information about the linkage including * the linkage type, database entity number and MSLink value, and the length * of the raw linkage data in bytes. * * If the requested linkage (iIndex) does not exist a value of zero is * returned. * * The entity number is (loosely speaking) the index of the table within * the current database to which the MSLINK value will refer. The entity * number should be used to lookup the table name in the MSCATALOG table. * The MSLINK value is the key value for the record in the target table. * * @param hDGN the file from which the element originated. * @param psElement the element to report on. * @param iIndex the zero based index of the linkage to fetch. * @param pnLinkageType variable to return linkage type. This may be one of * the predefined DGNLT_ values or a different value. This pointer may be NULL. * @param pnEntityNum variable to return the entity number in or NULL if not * required. * @param pnMSLink variable to return the MSLINK value in, or NULL if not * required. * @param pnLength variable to returned the linkage size in bytes or NULL. * * @return pointer to raw internal linkage data. This data should not be * altered or freed. NULL returned on failure. */ unsigned char *DGNGetLinkage( DGNHandle hDGN, DGNElemCore *psElement, int iIndex, int *pnLinkageType, int *pnEntityNum, int *pnMSLink, int *pnLength ) { int nLinkSize = 0; for( int iLinkage=0, nAttrOffset=0; (nLinkSize = DGNGetAttrLinkSize( hDGN, psElement, nAttrOffset)) != 0; iLinkage++, nAttrOffset += nLinkSize ) { if( iLinkage == iIndex ) { if( nLinkSize <= 4 ) { CPLError(CE_Failure, CPLE_AssertionFailed, "nLinkSize <= 4"); return nullptr; } if( nLinkSize + nAttrOffset > psElement->attr_bytes ) { CPLError(CE_Failure, CPLE_AssertionFailed, "nLinkSize + nAttrOffset > psElement->attr_bytes"); return nullptr; } int nLinkageType = 0; int nEntityNum = 0; int nMSLink = 0; if( psElement->attr_bytes >= nAttrOffset + 7 && psElement->attr_data[nAttrOffset+0] == 0x00 && (psElement->attr_data[nAttrOffset+1] == 0x00 || psElement->attr_data[nAttrOffset+1] == 0x80) ) { nLinkageType = DGNLT_DMRS; nEntityNum = psElement->attr_data[nAttrOffset+2] + psElement->attr_data[nAttrOffset+3] * 256; nMSLink = psElement->attr_data[nAttrOffset+4] + psElement->attr_data[nAttrOffset+5] * 256 + psElement->attr_data[nAttrOffset+6] * 65536; } else if( psElement->attr_bytes >= nAttrOffset + 4 ) nLinkageType = psElement->attr_data[nAttrOffset+2] + psElement->attr_data[nAttrOffset+3] * 256; // Possibly an external database linkage? if( nLinkSize == 16 && nLinkageType != DGNLT_SHAPE_FILL && psElement->attr_bytes >= nAttrOffset + 12 ) { nEntityNum = psElement->attr_data[nAttrOffset+6] + psElement->attr_data[nAttrOffset+7] * 256; nMSLink = psElement->attr_data[nAttrOffset+8] | (psElement->attr_data[nAttrOffset+9] << 8) | (psElement->attr_data[nAttrOffset+10] << 16) | (psElement->attr_data[nAttrOffset+11] << 24); } if( pnLinkageType != nullptr ) *pnLinkageType = nLinkageType; if( pnEntityNum != nullptr ) *pnEntityNum = nEntityNum; if( pnMSLink != nullptr ) *pnMSLink = nMSLink; if( pnLength != nullptr ) *pnLength = nLinkSize; return psElement->attr_data + nAttrOffset; } } return nullptr; } /************************************************************************/ /* DGNRotationToQuat() */ /* */ /* Compute a quaternion for a given Z rotation. */ /************************************************************************/ void DGNRotationToQuaternion( double dfRotation, int *panQuaternion ) { const double dfRadianRot = (dfRotation / 180.0) * M_PI; panQuaternion[0] = (int) (cos(-dfRadianRot/2.0) * 2147483647); panQuaternion[1] = 0; panQuaternion[2] = 0; panQuaternion[3] = (int) (sin(-dfRadianRot/2.0) * 2147483647); } /************************************************************************/ /* DGNQuaternionToMatrix() */ /* */ /* Compute a rotation matrix for a given quaternion */ /* FIXME: Write documentation on how to use this matrix */ /* (i.e. things like row/column major, OpenGL style or not) */ /* kintel 20030819 */ /************************************************************************/ void DGNQuaternionToMatrix( int *quat, float *mat ) { const double q[4] = { 1.0 * quat[1] / (1<<31), 1.0 * quat[2] / (1<<31), 1.0 * quat[3] / (1<<31), 1.0 * quat[0] / (1<<31) }; mat[0*3+0] = (float) (q[0]*q[0] - q[1]*q[1] - q[2]*q[2] + q[3]*q[3]); mat[0*3+1] = (float) (2 * (q[2]*q[3] + q[0]*q[1])); mat[0*3+2] = (float) (2 * (q[0]*q[2] - q[1]*q[3])); mat[1*3+0] = (float) (2 * (q[0]*q[1] - q[2]*q[3])); mat[1*3+1] = (float) (-q[0]*q[0] + q[1]*q[1] - q[2]*q[2] + q[3]*q[3]); mat[1*3+2] = (float) (2 * (q[0]*q[3] + q[1]*q[2])); mat[2*3+0] = (float) (2 * (q[0]*q[2] + q[1]*q[3])); mat[2*3+1] = (float) (2 * (q[1]*q[2] - q[0]*q[3])); mat[2*3+2] = (float) (-q[0]*q[0] - q[1]*q[1] + q[2]*q[2] + q[3]*q[3]); } /************************************************************************/ /* DGNTransformPointWithQuaternion() */ /************************************************************************/ #ifdef unused void DGNTransformPointWithQuaternionVertex( CPL_UNUSED int *quat, CPL_UNUSED DGNPoint *v1, CPL_UNUSED DGNPoint *v2 ) { /* ==================================================================== */ /* Original code provided by kintel 20030819, but assumed to be */ /* incomplete. */ /* ==================================================================== */ #ifdef notdef See below for sketched implementation. kintel 20030819. float x,y,z,w; // FIXME: Convert quat to x,y,z,w v2.x = w*w*v1.x + 2*y*w*v1.z - 2*z*w*v1.y + x*x*v1.x + 2*y*x*v1.y + 2*z*x*v1.z - z*z*v1.x - y*y*v1.x; v2.y = 2*x*y*v1.x + y*y*v1.y + 2*z*y*v1.z + 2*w*z*v1.x - z*z*v1.y + w*w*v1.y - 2*x*w*v1.z - x*x*v1.y; v2.z = 2*x*z*v1.x + 2*y*z*v1.y + z*z*v1.z - 2*w*y*v1.x - y*y*v1.z + 2*w*x*v1.y - x*x*v1.z + w*w*v1.z; #endif /* ==================================================================== */ /* Implementation provided by Peggy Jung - 2004/03/05. */ /* peggy.jung at moskito-gis dot de. I haven't tested it. */ /* ==================================================================== */ /* Version: 0.1 Datum: 26.01.2004 IN: x,y,z // DGNPoint &v1 quat[] // OUT: newX, newY, newZ // DGNPoint &v2 Author: Peggy Jung */ /* double ROT[12]; //rotation matrix for a given quaternion double xx, xy, xz, xw, yy, yz, yw, zz, zw; double a, b, c, d, n, x, y, z; x = v1->x; y = v1->y; z = v1->z; n = sqrt((double)PDP2PC_long(quat[0])*(double)PDP2PC_long(quat[0])+(double)PDP2PC_long(quat[1])*(double)PDP2PC_long(quat[1])+ (double)PDP2PC_long(quat[2])*(double)PDP2PC_long(quat[2])+(double)PDP2PC_long(quat[3])*(double)PDP2PC_long(quat[3])); a = (double)PDP2PC_long(quat[0])/n; //w b = (double)PDP2PC_long(quat[1])/n; //x c = (double)PDP2PC_long(quat[2])/n; //y d = (double)PDP2PC_long(quat[3])/n; //z xx = b*b; xy = b*c; xz = b*d; xw = b*a; yy = c*c; yz = c*d; yw = c*a; zz = d*d; zw = d+a; ROT[0] = 1 - 2 * yy - 2 * zz ; ROT[1] = 2 * xy - 2 * zw ; ROT[2] = 2 * xz + 2 * yw ; ROT[4] = 2 * xy + 2 * zw ; ROT[5] = 1 - 2 * xx - 2 * zz ; ROT[6] = 2 * yz - 2 * xw ; ROT[8] = 2 * xz - 2 * yw ; ROT[9] = 2 * yz + 2 * xw ; ROT[10] = 1 - 2 * xx - 2 * yy ; v2->x = ROT[0]*x + ROT[1]*y + ROT[2]*z; v2->y = ROT[4]*x + ROT[5]*y + ROT[6]*z; v2->z = ROT[8]*x + ROT[9]*y + ROT[10]*z; */ } #endif