OGRFeature *OGRDWGLayer::TranslateDIMENSION( OdDbEntityPtr poEntity )
{
OdDbDimensionPtr poDim = OdDbDimension::cast( poEntity );
OGRFeature *poFeature = new OGRFeature( poFeatureDefn );
double dfHeight = CPLAtof(poDS->GetVariable("$DIMTXT", "2.5"));
OdGePoint3d oTextPos, oTarget1, oTarget2, oArrow1;
CPLString osText;
TranslateGenericProperties( poFeature, poEntity );
/* -------------------------------------------------------------------- */
/* Generic Dimension stuff. */
/* -------------------------------------------------------------------- */
osText = (const char *) poDim->dimensionText();
oTextPos = poDim->textPosition();
/* -------------------------------------------------------------------- */
/* Specific based on the subtype. */
/* -------------------------------------------------------------------- */
OdRxClass *poClass = poEntity->isA();
const OdString osName = poClass->name();
const char *pszEntityClassName = (const char *) osName;
if( EQUAL(pszEntityClassName,"AcDbRotatedDimension") )
{
OdDbRotatedDimensionPtr poRDim = OdDbDimension::cast( poEntity );
oTarget2 = poRDim->xLine1Point();
oTarget1 = poRDim->xLine2Point();
oArrow1 = poRDim->dimLinePoint();
}
else if( EQUAL(pszEntityClassName,"AcDbAlignedDimension") )
{
OdDbAlignedDimensionPtr poADim = OdDbDimension::cast( poEntity );
oTarget2 = poADim->xLine1Point();
oTarget1 = poADim->xLine2Point();
oArrow1 = poADim->dimLinePoint();
}
/*************************************************************************
DIMENSION geometry layout
(11,21)(text center point)
| DimText |
(10,20) X<--------------------------------->X (Arrow2 - computed)
(Arrow1)| |
| |
| X (13,23) (Target2)
|
X (14,24) (Target1)
Given:
Locations Arrow1, Target1, and Target2 we need to compute Arrow2.
Steps:
1) Compute direction vector from Target1 to Arrow1 (Vec1).
2) Compute direction vector for arrow as perpendicular to Vec1 (call Vec2).
3) Compute Arrow2 location as intersection between line defined by
Vec2 and Arrow1 and line defined by Target2 and direction Vec1 (call Arrow2)
Then we can draw lines for the various components.
Note that Vec1 and Vec2 may be horizontal, vertical or on an angle but
the approach is as above in all these cases.
*************************************************************************/
/* -------------------------------------------------------------------- */
/* Step 1, compute direction vector between Target1 and Arrow1. */
/* -------------------------------------------------------------------- */
double dfVec1X, dfVec1Y;
dfVec1X = (oArrow1.x - oTarget1.x);
dfVec1Y = (oArrow1.y - oTarget1.y);
/* -------------------------------------------------------------------- */
/* Step 2, compute the direction vector from Arrow1 to Arrow2 */
/* as a perpendicular to Vec1. */
/* -------------------------------------------------------------------- */
double dfVec2X, dfVec2Y;
dfVec2X = dfVec1Y;
dfVec2Y = -dfVec1X;
/* -------------------------------------------------------------------- */
/* Step 3, compute intersection of line from target2 along */
/* direction vector 1, with the line through Arrow1 and */
/* direction vector 2. */
/* -------------------------------------------------------------------- */
double dfL1M, dfL1B, dfL2M, dfL2B;
double dfArrowX2, dfArrowY2;
// special case if vec1 is vertical.
if( dfVec1X == 0.0 )
{
dfArrowX2 = oTarget2.x;
dfArrowY2 = oArrow1.y;
}
// special case if vec2 is horizontal.
else if( dfVec1Y == 0.0 )
{
dfArrowX2 = oArrow1.x;
dfArrowY2 = oTarget2.y;
}
else // General case for diagonal vectors.
{
// first convert vec1 + target2 into y = mx + b format: call this L1
dfL1M = dfVec1Y / dfVec1X;
dfL1B = oTarget2.y - dfL1M * oTarget2.x;
// convert vec2 + Arrow1 into y = mx + b format, call this L2
dfL2M = dfVec2Y / dfVec2X;
dfL2B = oArrow1.y - dfL2M * oArrow1.x;
// Compute intersection x = (b2-b1) / (m1-m2)
dfArrowX2 = (dfL2B - dfL1B) / (dfL1M-dfL2M);
dfArrowY2 = dfL2M * dfArrowX2 + dfL2B;
}
/* -------------------------------------------------------------------- */
/* Compute the text angle. */
/* -------------------------------------------------------------------- */
double dfAngle = atan2(dfVec2Y,dfVec2X) * 180.0 / M_PI;
/* -------------------------------------------------------------------- */
/* Rescale the direction vectors so we can use them in */
/* constructing arrowheads. We want them to be about 3% of the */
/* length of line on which the arrows will be drawn. */
/* -------------------------------------------------------------------- */
#define VECTOR_LEN(x,y) sqrt( (x)*(x) + (y)*(y) )
#define POINT_DIST(x1,y1,x2,y2) VECTOR_LEN((x2-x1),(y2-y1))
double dfBaselineLength = POINT_DIST(oArrow1.x,oArrow1.y,
dfArrowX2,dfArrowY2);
double dfTargetLength = dfBaselineLength * 0.03;
double dfScaleFactor;
// recompute vector 2 to ensure the direction is regular
dfVec2X = (dfArrowX2 - oArrow1.x);
dfVec2Y = (dfArrowY2 - oArrow1.y);
// vector 1
dfScaleFactor = dfTargetLength / VECTOR_LEN(dfVec1X,dfVec1Y);
dfVec1X *= dfScaleFactor;
dfVec1Y *= dfScaleFactor;
// vector 2
dfScaleFactor = dfTargetLength / VECTOR_LEN(dfVec2X,dfVec2Y);
dfVec2X *= dfScaleFactor;
dfVec2Y *= dfScaleFactor;
/* -------------------------------------------------------------------- */
/* Create geometries for the different components of the */
/* dimension object. */
/* -------------------------------------------------------------------- */
OGRMultiLineString *poMLS = new OGRMultiLineString();
OGRLineString oLine;
// main arrow line between Arrow1 and Arrow2
oLine.setPoint( 0, oArrow1.x, oArrow1.y );
oLine.setPoint( 1, dfArrowX2, dfArrowY2 );
poMLS->addGeometry( &oLine );
// dimension line from Target1 to Arrow1 with a small extension.
oLine.setPoint( 0, oTarget1.x, oTarget1.y );
oLine.setPoint( 1, oArrow1.x + dfVec1X, oArrow1.y + dfVec1Y );
poMLS->addGeometry( &oLine );
// dimension line from Target2 to Arrow2 with a small extension.
oLine.setPoint( 0, oTarget2.x, oTarget2.y );
oLine.setPoint( 1, dfArrowX2 + dfVec1X, dfArrowY2 + dfVec1Y );
poMLS->addGeometry( &oLine );
// add arrow1 arrow head.
oLine.setPoint( 0, oArrow1.x, oArrow1.y );
oLine.setPoint( 1,
oArrow1.x + dfVec2X*3 + dfVec1X,
oArrow1.y + dfVec2Y*3 + dfVec1Y );
poMLS->addGeometry( &oLine );
oLine.setPoint( 0, oArrow1.x, oArrow1.y );
oLine.setPoint( 1,
oArrow1.x + dfVec2X*3 - dfVec1X,
oArrow1.y + dfVec2Y*3 - dfVec1Y );
poMLS->addGeometry( &oLine );
// add arrow2 arrow head.
oLine.setPoint( 0, dfArrowX2, dfArrowY2 );
oLine.setPoint( 1,
dfArrowX2 - dfVec2X*3 + dfVec1X,
dfArrowY2 - dfVec2Y*3 + dfVec1Y );
poMLS->addGeometry( &oLine );
oLine.setPoint( 0, dfArrowX2, dfArrowY2 );
oLine.setPoint( 1,
dfArrowX2 - dfVec2X*3 - dfVec1X,
dfArrowY2 - dfVec2Y*3 - dfVec1Y );
poMLS->addGeometry( &oLine );
poFeature->SetGeometryDirectly( poMLS );
PrepareLineStyle( poFeature );
/* -------------------------------------------------------------------- */
/* Is the layer disabled/hidden/frozen/off? */
/* -------------------------------------------------------------------- */
CPLString osLayer = poFeature->GetFieldAsString("Layer");
int bHidden =
EQUAL(poDS->LookupLayerProperty( osLayer, "Hidden" ), "1");
/* -------------------------------------------------------------------- */
/* Work out the color for this feature. */
/* -------------------------------------------------------------------- */
int nColor = 256;
if( oStyleProperties.count("Color") > 0 )
nColor = atoi(oStyleProperties["Color"]);
// Use layer color?
if( nColor < 1 || nColor > 255 )
{
const char *pszValue = poDS->LookupLayerProperty( osLayer, "Color" );
if( pszValue != NULL )
nColor = atoi(pszValue);
}
if( nColor < 1 || nColor > 255 )
nColor = 8;
/* -------------------------------------------------------------------- */
/* Prepare a new feature to serve as the dimension text label */
/* feature. We will push it onto the layer as a pending */
/* feature for the next feature read. */
/* -------------------------------------------------------------------- */
// a single space suppresses labeling.
if( osText == " " )
return poFeature;
OGRFeature *poLabelFeature = poFeature->Clone();
poLabelFeature->SetGeometryDirectly( new OGRPoint( oTextPos.x, oTextPos.y ) );
// Do we need to compute the dimension value?
if( osText.empty() )
{
FormatDimension( osText, POINT_DIST( oArrow1.x, oArrow1.y,
dfArrowX2, dfArrowY2 ) );
}
CPLString osStyle;
char szBuffer[64];
char* pszComma = NULL;
osStyle.Printf("LABEL(f:\"Arial\",t:\"%s\",p:5",osText.c_str());
if( dfAngle != 0.0 )
{
CPLsnprintf(szBuffer, sizeof(szBuffer), "%.3g", dfAngle);
pszComma = strchr(szBuffer, ',');
if (pszComma)
*pszComma = '.';
osStyle += CPLString().Printf(",a:%s", szBuffer);
}
if( dfHeight != 0.0 )
{
CPLsnprintf(szBuffer, sizeof(szBuffer), "%.3g", dfHeight);
pszComma = strchr(szBuffer, ',');
if (pszComma)
*pszComma = '.';
osStyle += CPLString().Printf(",s:%sg", szBuffer);
}
const unsigned char *pabyDWGColors = ACGetColorTable();
snprintf( szBuffer, sizeof(szBuffer), ",c:#%02x%02x%02x",
pabyDWGColors[nColor*3+0],
pabyDWGColors[nColor*3+1],
pabyDWGColors[nColor*3+2] );
osStyle += szBuffer;
if( bHidden )
osStyle += "00";
osStyle += ")";
poLabelFeature->SetStyleString( osStyle );
apoPendingFeatures.push( poLabelFeature );
return poFeature;
}
OGRGeometry *OGRMultiLineString::clone() const
{
OGRMultiLineString *poNewGC;
poNewGC = new OGRMultiLineString;
poNewGC->assignSpatialReference( getSpatialReference() );
for( int i = 0; i < getNumGeometries(); i++ )
{
poNewGC->addGeometry( getGeometryRef(i) );
}
return poNewGC;
}
//---------------------------------------------------------
bool COGR_DataSource::_Write_Geometry(CSG_Shape *pShape, OGRFeature *pFeature)
{
if( pShape && pFeature )
{
int iPoint, iPart;
TSG_Point sgPoint;
OGRPoint Point;
OGRMultiPoint Points;
OGRLineString Line;
OGRMultiLineString Lines;
OGRLinearRing Ring;
OGRPolygon Polygon;
switch( pShape->Get_Type() )
{
//-------------------------------------------------
case SHAPE_TYPE_Point:
sgPoint = pShape->Get_Point(0);
Point.setX(sgPoint.x);
Point.setY(sgPoint.y);
return( pFeature->SetGeometry(&Point) == OGRERR_NONE );
//-------------------------------------------------
case SHAPE_TYPE_Points:
for(iPart=0; iPart<pShape->Get_Part_Count(); iPart++)
{
for(iPoint=0; iPoint<pShape->Get_Point_Count(iPart); iPoint++)
{
sgPoint = pShape->Get_Point(iPoint, iPart);
Point.setX(sgPoint.x);
Point.setY(sgPoint.y);
Points.addGeometry(&Point);
}
}
return( pFeature->SetGeometry(&Points) == OGRERR_NONE );
//-------------------------------------------------
case SHAPE_TYPE_Line:
if( pShape->Get_Part_Count() == 1 )
{
_Write_Line(pShape, &Line, 0);
return( pFeature->SetGeometry(&Line) == OGRERR_NONE );
}
else
{
for(iPart=0; iPart<pShape->Get_Part_Count(); iPart++)
{
if( _Write_Line(pShape, &Line, iPart) )
{
Lines.addGeometry(&Line);
}
}
return( pFeature->SetGeometry(&Lines) == OGRERR_NONE );
}
//-------------------------------------------------
case SHAPE_TYPE_Polygon:
for(iPart=0; iPart<pShape->Get_Part_Count(); iPart++)
{
if( _Write_Line(pShape, &Ring, iPart) )
{
Polygon.addRing(&Ring);
}
}
return( pFeature->SetGeometry(&Polygon) == OGRERR_NONE );
//-------------------------------------------------
default:
break;
}
}
return( false );
}
OGRFeature *OGRDXFLayer::TranslateHATCH()
{
char szLineBuf[257];
int nCode;
OGRFeature *poFeature = new OGRFeature( poFeatureDefn );
CPLString osHatchPattern;
int nFillFlag = 0;
OGRGeometryCollection oGC;
while( (nCode = poDS->ReadValue(szLineBuf,sizeof(szLineBuf))) > 0 )
{
switch( nCode )
{
case 70:
nFillFlag = atoi(szLineBuf);
break;
case 2:
osHatchPattern = szLineBuf;
poFeature->SetField( "Text", osHatchPattern.c_str() );
break;
case 91:
{
int nBoundaryPathCount = atoi(szLineBuf);
int iBoundary;
for( iBoundary = 0; iBoundary < nBoundaryPathCount; iBoundary++ )
{
if (CollectBoundaryPath( &oGC ) != OGRERR_NONE)
break;
}
}
break;
default:
TranslateGenericProperty( poFeature, nCode, szLineBuf );
break;
}
}
if( nCode == 0 )
poDS->UnreadValue();
/* -------------------------------------------------------------------- */
/* Try to turn the set of lines into something useful. */
/* -------------------------------------------------------------------- */
OGRErr eErr;
OGRGeometry* poFinalGeom = (OGRGeometry *)
OGRBuildPolygonFromEdges( (OGRGeometryH) &oGC,
TRUE, TRUE, 0.0000001, &eErr );
if( eErr != OGRERR_NONE )
{
delete poFinalGeom;
OGRMultiLineString* poMLS = new OGRMultiLineString();
for(int i=0;i<oGC.getNumGeometries();i++)
poMLS->addGeometry(oGC.getGeometryRef(i));
poFinalGeom = poMLS;
}
ApplyOCSTransformer( poFinalGeom );
poFeature->SetGeometryDirectly( poFinalGeom );
/* -------------------------------------------------------------------- */
/* Work out the color for this feature. For now we just assume */
/* solid fill. We cannot trivially translate the various sorts */
/* of hatching. */
/* -------------------------------------------------------------------- */
CPLString osLayer = poFeature->GetFieldAsString("Layer");
int nColor = 256;
if( oStyleProperties.count("Color") > 0 )
nColor = atoi(oStyleProperties["Color"]);
// Use layer color?
if( nColor < 1 || nColor > 255 )
{
const char *pszValue = poDS->LookupLayerProperty( osLayer, "Color" );
if( pszValue != NULL )
nColor = atoi(pszValue);
}
/* -------------------------------------------------------------------- */
/* Setup the style string. */
/* -------------------------------------------------------------------- */
if( nColor >= 1 && nColor <= 255 )
{
CPLString osStyle;
const unsigned char *pabyDXFColors = ACGetColorTable();
osStyle.Printf( "BRUSH(fc:#%02x%02x%02x)",
pabyDXFColors[nColor*3+0],
pabyDXFColors[nColor*3+1],
pabyDXFColors[nColor*3+2] );
poFeature->SetStyleString( osStyle );
}
return poFeature;
}
OGRDXFFeature *OGRDXFLayer::TranslateHATCH()
{
char szLineBuf[257];
int nCode = 0;
OGRDXFFeature *poFeature = new OGRDXFFeature( poFeatureDefn );
CPLString osHatchPattern;
double dfElevation = 0.0; // Z value to be used for EVERY point
/* int nFillFlag = 0; */
OGRGeometryCollection oGC;
while( (nCode = poDS->ReadValue(szLineBuf,sizeof(szLineBuf))) > 0 )
{
switch( nCode )
{
case 30:
// Constant elevation.
dfElevation = CPLAtof( szLineBuf );
break;
case 70:
/* nFillFlag = atoi(szLineBuf); */
break;
case 2:
osHatchPattern = szLineBuf;
poFeature->SetField( "Text", osHatchPattern.c_str() );
break;
case 91:
{
int nBoundaryPathCount = atoi(szLineBuf);
for( int iBoundary = 0;
iBoundary < nBoundaryPathCount;
iBoundary++ )
{
if (CollectBoundaryPath( &oGC, dfElevation ) != OGRERR_NONE)
break;
}
}
break;
default:
TranslateGenericProperty( poFeature, nCode, szLineBuf );
break;
}
}
if( nCode < 0 )
{
DXF_LAYER_READER_ERROR();
delete poFeature;
return nullptr;
}
if( nCode == 0 )
poDS->UnreadValue();
/* -------------------------------------------------------------------- */
/* Obtain a tolerance value used when building the polygon. */
/* -------------------------------------------------------------------- */
double dfTolerance = atof( CPLGetConfigOption( "DXF_HATCH_TOLERANCE", "-1" ) );
if( dfTolerance < 0 )
{
// If the configuration variable isn't set, compute the bounding box
// and work out a tolerance from that
OGREnvelope oEnvelope;
oGC.getEnvelope( &oEnvelope );
dfTolerance = std::max( oEnvelope.MaxX - oEnvelope.MinX,
oEnvelope.MaxY - oEnvelope.MinY ) * 1e-7;
}
/* -------------------------------------------------------------------- */
/* Try to turn the set of lines into something useful. */
/* -------------------------------------------------------------------- */
OGRErr eErr;
OGRGeometry* poFinalGeom = (OGRGeometry *)
OGRBuildPolygonFromEdges( (OGRGeometryH) &oGC,
TRUE, TRUE, dfTolerance, &eErr );
if( eErr != OGRERR_NONE )
{
delete poFinalGeom;
OGRMultiLineString* poMLS = new OGRMultiLineString();
for(int i=0;i<oGC.getNumGeometries();i++)
poMLS->addGeometry(oGC.getGeometryRef(i));
poFinalGeom = poMLS;
}
poFeature->ApplyOCSTransformer( poFinalGeom );
poFeature->SetGeometryDirectly( poFinalGeom );
PrepareBrushStyle( poFeature );
return poFeature;
}
OGRFeature *OGRDGNLayer::ElementToFeature( DGNElemCore *psElement )
{
OGRFeature *poFeature = new OGRFeature( poFeatureDefn );
poFeature->SetFID( psElement->element_id );
poFeature->SetField( "Type", psElement->type );
poFeature->SetField( "Level", psElement->level );
poFeature->SetField( "GraphicGroup", psElement->graphic_group );
poFeature->SetField( "ColorIndex", psElement->color );
poFeature->SetField( "Weight", psElement->weight );
poFeature->SetField( "Style", psElement->style );
m_nFeaturesRead++;
/* -------------------------------------------------------------------- */
/* Collect linkage information */
/* -------------------------------------------------------------------- */
#define MAX_LINK 100
int anEntityNum[MAX_LINK], anMSLink[MAX_LINK];
unsigned char *pabyData;
int iLink=0, nLinkCount=0;
anEntityNum[0] = 0;
anMSLink[0] = 0;
pabyData = DGNGetLinkage( hDGN, psElement, iLink, NULL,
anEntityNum+iLink, anMSLink+iLink, NULL );
while( pabyData && nLinkCount < MAX_LINK )
{
iLink++;
if( anEntityNum[nLinkCount] != 0 || anMSLink[nLinkCount] != 0 )
nLinkCount++;
anEntityNum[nLinkCount] = 0;
anMSLink[nLinkCount] = 0;
pabyData = DGNGetLinkage( hDGN, psElement, iLink, NULL,
anEntityNum+nLinkCount, anMSLink+nLinkCount,
NULL );
}
/* -------------------------------------------------------------------- */
/* Apply attribute linkage to feature. */
/* -------------------------------------------------------------------- */
if( nLinkCount > 0 )
{
if( EQUAL(pszLinkFormat,"FIRST") )
{
poFeature->SetField( "EntityNum", anEntityNum[0] );
poFeature->SetField( "MSLink", anMSLink[0] );
}
else if( EQUAL(pszLinkFormat,"LIST") )
{
poFeature->SetField( "EntityNum", nLinkCount, anEntityNum );
poFeature->SetField( "MSLink", nLinkCount, anMSLink );
}
else if( EQUAL(pszLinkFormat,"STRING") )
{
char szEntityList[MAX_LINK*9], szMSLinkList[MAX_LINK*9];
int nEntityLen = 0, nMSLinkLen = 0;
for( iLink = 0; iLink < nLinkCount; iLink++ )
{
if( iLink != 0 )
{
szEntityList[nEntityLen++] = ',';
szMSLinkList[nMSLinkLen++] = ',';
}
sprintf( szEntityList + nEntityLen, "%d", anEntityNum[iLink]);
sprintf( szMSLinkList + nMSLinkLen, "%d", anMSLink[iLink] );
nEntityLen += strlen(szEntityList + nEntityLen );
nMSLinkLen += strlen(szMSLinkList + nMSLinkLen );
}
poFeature->SetField( "EntityNum", szEntityList );
poFeature->SetField( "MSLink", szMSLinkList );
}
}
/* -------------------------------------------------------------------- */
/* Lookup color. */
/* -------------------------------------------------------------------- */
char gv_color[128];
int gv_red, gv_green, gv_blue;
char szFSColor[128], szPen[256];
szFSColor[0] = '\0';
if( DGNLookupColor( hDGN, psElement->color,
&gv_red, &gv_green, &gv_blue ) )
{
sprintf( gv_color, "%f %f %f 1.0",
gv_red / 255.0, gv_green / 255.0, gv_blue / 255.0 );
sprintf( szFSColor, "c:#%02x%02x%02x",
gv_red, gv_green, gv_blue );
}
/* -------------------------------------------------------------------- */
/* Generate corresponding PEN style. */
/* -------------------------------------------------------------------- */
if( psElement->style == DGNS_SOLID )
sprintf( szPen, "PEN(id:\"ogr-pen-0\"" );
else if( psElement->style == DGNS_DOTTED )
sprintf( szPen, "PEN(id:\"ogr-pen-5\"" );
else if( psElement->style == DGNS_MEDIUM_DASH )
sprintf( szPen, "PEN(id:\"ogr-pen-2\"" );
else if( psElement->style == DGNS_LONG_DASH )
sprintf( szPen, "PEN(id:\"ogr-pen-4\"" );
else if( psElement->style == DGNS_DOT_DASH )
sprintf( szPen, "PEN(id:\"ogr-pen-6\"" );
else if( psElement->style == DGNS_SHORT_DASH )
sprintf( szPen, "PEN(id:\"ogr-pen-3\"" );
else if( psElement->style == DGNS_DASH_DOUBLE_DOT )
sprintf( szPen, "PEN(id:\"ogr-pen-7\"" );
else if( psElement->style == DGNS_LONG_DASH_SHORT_DASH )
sprintf( szPen, "PEN(p:\"10px 5px 4px 5px\"" );
else
sprintf( szPen, "PEN(id:\"ogr-pen-0\"" );
if( strlen(szFSColor) > 0 )
sprintf( szPen+strlen(szPen), ",%s", szFSColor );
if( psElement->weight > 1 )
sprintf( szPen+strlen(szPen), ",w:%dpx", psElement->weight );
strcat( szPen, ")" );
switch( psElement->stype )
{
case DGNST_MULTIPOINT:
if( psElement->type == DGNT_SHAPE )
{
OGRLinearRing *poLine = new OGRLinearRing();
OGRPolygon *poPolygon = new OGRPolygon();
DGNElemMultiPoint *psEMP = (DGNElemMultiPoint *) psElement;
poLine->setNumPoints( psEMP->num_vertices );
for( int i = 0; i < psEMP->num_vertices; i++ )
{
poLine->setPoint( i,
psEMP->vertices[i].x,
psEMP->vertices[i].y,
psEMP->vertices[i].z );
}
poPolygon->addRingDirectly( poLine );
poFeature->SetGeometryDirectly( poPolygon );
ConsiderBrush( psElement, szPen, poFeature );
}
else if( psElement->type == DGNT_CURVE )
{
DGNElemMultiPoint *psEMP = (DGNElemMultiPoint *) psElement;
OGRLineString *poLine = new OGRLineString();
DGNPoint *pasPoints;
int nPoints;
nPoints = 5 * psEMP->num_vertices;
pasPoints = (DGNPoint *) CPLMalloc(sizeof(DGNPoint) * nPoints);
DGNStrokeCurve( hDGN, psEMP, nPoints, pasPoints );
poLine->setNumPoints( nPoints );
for( int i = 0; i < nPoints; i++ )
{
poLine->setPoint( i,
pasPoints[i].x,
pasPoints[i].y,
pasPoints[i].z );
}
poFeature->SetGeometryDirectly( poLine );
CPLFree( pasPoints );
poFeature->SetStyleString( szPen );
}
else
{
OGRLineString *poLine = new OGRLineString();
DGNElemMultiPoint *psEMP = (DGNElemMultiPoint *) psElement;
if( psEMP->num_vertices > 0 )
{
poLine->setNumPoints( psEMP->num_vertices );
for( int i = 0; i < psEMP->num_vertices; i++ )
{
poLine->setPoint( i,
psEMP->vertices[i].x,
psEMP->vertices[i].y,
psEMP->vertices[i].z );
}
poFeature->SetGeometryDirectly( poLine );
}
poFeature->SetStyleString( szPen );
}
break;
case DGNST_ARC:
{
OGRLineString *poLine = new OGRLineString();
DGNElemArc *psArc = (DGNElemArc *) psElement;
DGNPoint asPoints[90];
int nPoints;
nPoints = (int) (MAX(1,ABS(psArc->sweepang) / 5) + 1);
DGNStrokeArc( hDGN, psArc, nPoints, asPoints );
poLine->setNumPoints( nPoints );
for( int i = 0; i < nPoints; i++ )
{
poLine->setPoint( i,
asPoints[i].x,
asPoints[i].y,
asPoints[i].z );
}
poFeature->SetGeometryDirectly( poLine );
poFeature->SetStyleString( szPen );
}
break;
case DGNST_TEXT:
{
OGRPoint *poPoint = new OGRPoint();
DGNElemText *psText = (DGNElemText *) psElement;
char *pszOgrFS;
poPoint->setX( psText->origin.x );
poPoint->setY( psText->origin.y );
poPoint->setZ( psText->origin.z );
poFeature->SetGeometryDirectly( poPoint );
pszOgrFS = (char *) CPLMalloc(strlen(psText->string) + 150);
// setup the basic label.
sprintf( pszOgrFS, "LABEL(t:\"%s\"", psText->string );
// set the color if we have it.
if( strlen(szFSColor) > 0 )
sprintf( pszOgrFS+strlen(pszOgrFS), ",%s", szFSColor );
// Add the size info in ground units.
if( ABS(psText->height_mult) >= 6.0 )
sprintf( pszOgrFS+strlen(pszOgrFS), ",s:%dg",
(int) psText->height_mult );
else if( ABS(psText->height_mult) > 0.1 )
sprintf( pszOgrFS+strlen(pszOgrFS), ",s:%.3fg",
psText->height_mult );
else
sprintf( pszOgrFS+strlen(pszOgrFS), ",s:%.12fg",
psText->height_mult );
// Add the font name. Name it MstnFont<FONTNUMBER> if not available
// in the font list. #3392
static const char *papszFontList[] =
{ "STANDARD", "WORKING", "FANCY", "ENGINEERING", "NEWZERO", "STENCEL", //0-5
"USTN_FANCY", "COMPRESSED", "STENCEQ", NULL, "hand", "ARCH", //6-11
"ARCHB", NULL, NULL, "IGES1001", "IGES1002", "IGES1003", //12-17
"CENTB", "MICROS", NULL, NULL, "ISOFRACTIONS", "ITALICS", //18-23
"ISO30", NULL, "GREEK", "ISOREC", "Isoeq", NULL, //24-29
"ISO_FONTLEFT", "ISO_FONTRIGHT", "INTL_ENGINEERING", "INTL_WORKING", "ISOITEQ", NULL, //30-35
"USTN FONT 26", NULL, NULL, NULL, NULL, "ARCHITECTURAL", //36-41
"BLOCK_OUTLINE", "LOW_RES_FILLED", NULL, NULL, NULL, NULL, //42-47
NULL, NULL, "UPPERCASE", NULL, NULL, NULL, //48-53
NULL, NULL, NULL, NULL, NULL, NULL, //54-49
"FONT060", "din", "dinit", "helvl", "HELVLIT", "helv", //60-65
"HELVIT", "cent", "CENTIT", "SCRIPT", NULL, NULL, //66-71
NULL, NULL, NULL, NULL, "MICROQ", "dotfont", //72-77
"DOTIT", NULL, NULL, NULL, NULL, NULL, //78-83
NULL, NULL, NULL, NULL, NULL, NULL, //84-89
NULL, NULL, "FONT092", NULL, "FONT094", NULL, //90-95
NULL, NULL, NULL, NULL, "ANSI_SYMBOLS", "FEATURE_CONTROL_SYSMBOLS", //96-101
"SYMB_FAST", NULL, NULL, "INTL_ISO", "INTL_ISO_EQUAL", "INTL_ISO_ITALIC", //102-107
"INTL_ISO_ITALIC_EQUAL" }; //108
if(psText->font_id <= 108 && papszFontList[psText->font_id] != NULL )
{
sprintf( pszOgrFS+strlen(pszOgrFS), ",f:%s",
papszFontList[psText->font_id] );
}
else
{
sprintf( pszOgrFS+strlen(pszOgrFS), ",f:MstnFont%d",
psText->font_id );
}
// Add the angle, if not horizontal
if( psText->rotation != 0.0 )
sprintf( pszOgrFS+strlen(pszOgrFS), ",a:%d",
(int) (psText->rotation+0.5) );
strcat( pszOgrFS, ")" );
poFeature->SetStyleString( pszOgrFS );
CPLFree( pszOgrFS );
poFeature->SetField( "Text", psText->string );
}
break;
case DGNST_COMPLEX_HEADER:
{
DGNElemComplexHeader *psHdr = (DGNElemComplexHeader *) psElement;
int iChild;
OGRMultiLineString oChildren;
/* collect subsequent child geometries. */
// we should disable the spatial filter ... add later.
for( iChild = 0; iChild < psHdr->numelems; iChild++ )
{
OGRFeature *poChildFeature = NULL;
DGNElemCore *psChildElement;
psChildElement = DGNReadElement( hDGN );
// should verify complex bit set, not another header.
if( psChildElement != NULL )
{
poChildFeature = ElementToFeature( psChildElement );
DGNFreeElement( hDGN, psChildElement );
}
if( poChildFeature != NULL
&& poChildFeature->GetGeometryRef() != NULL )
{
OGRGeometry *poGeom;
poGeom = poChildFeature->GetGeometryRef();
if( wkbFlatten(poGeom->getGeometryType()) == wkbLineString )
oChildren.addGeometry( poGeom );
}
if( poChildFeature != NULL )
delete poChildFeature;
}
// Try to assemble into polygon geometry.
OGRGeometry *poGeom;
if( psElement->type == DGNT_COMPLEX_SHAPE_HEADER )
poGeom = (OGRPolygon *)
OGRBuildPolygonFromEdges( (OGRGeometryH) &oChildren,
TRUE, TRUE, 100000, NULL );
else
poGeom = oChildren.clone();
if( poGeom != NULL )
poFeature->SetGeometryDirectly( poGeom );
ConsiderBrush( psElement, szPen, poFeature );
}
break;
default:
break;
}
/* -------------------------------------------------------------------- */
/* Fixup geometry dimension. */
/* -------------------------------------------------------------------- */
if( poFeature->GetGeometryRef() != NULL )
poFeature->GetGeometryRef()->setCoordinateDimension(
DGNGetDimension( hDGN ) );
return poFeature;
}
