rs_filterdxf.cpp

Linux下一个开源的CAD软件

    DL_KnotData kd;
    for (int i=1; i<=numKnots; i++) {
        if (i<=k) {
            kd = DL_KnotData(0.0);
        } else if (i<=numKnots-k) {
            kd = DL_KnotData(1.0/(numKnots-2*k+1) * (i-k));
        } else {
            kd = DL_KnotData(1.0);
        }
        dxf.writeKnot(dw,
                      kd);
    }

    // write spline control points:
    for (it = cp.begin(); it!=cp.end(); ++it) {
        dxf.writeControlPoint(dw,
                              DL_ControlPointData((*it).x,
                                                  (*it).y,
                                                  0.0));
    }
}



/**
 * Writes the given circle entity to the file.
 */
void RS_FilterDXF::writeCircle(DL_WriterA& dw, RS_Circle* c,
                               const DL_Attributes& attrib) {
    dxf.writeCircle(
        dw,
        DL_CircleData(c->getCenter().x,
                      c->getCenter().y,
                      0.0,
                      c->getRadius()),
        attrib);

}



void RS_FilterDXF::writeArc(DL_WriterA& dw, RS_Arc* a,
                            const DL_Attributes& attrib) {
    double a1, a2;
    if (a->isReversed()) {
        a1 = a->getAngle2()*ARAD;
        a2 = a->getAngle1()*ARAD;
    } else {
        a1 = a->getAngle1()*ARAD;
        a2 = a->getAngle2()*ARAD;
    }
    dxf.writeArc(
        dw,
        DL_ArcData(a->getCenter().x,
                   a->getCenter().y,
                   0.0,
                   a->getRadius(),
                   a1, a2),
        attrib);
}


void RS_FilterDXF::writeEllipse(DL_WriterA& dw, RS_Ellipse* s,
                                const DL_Attributes& attrib) {
    if (s->isReversed()) {
        dxf.writeEllipse(
            dw,
            DL_EllipseData(s->getCenter().x,
                           s->getCenter().y,
                           0.0,
                           s->getMajorP().x,
                           s->getMajorP().y,
                           0.0,
                           s->getRatio(),
                           s->getAngle2(),
                           s->getAngle1()),
            attrib);
    } else {
        dxf.writeEllipse(
            dw,
            DL_EllipseData(s->getCenter().x,
                           s->getCenter().y,
                           0.0,
                           s->getMajorP().x,
                           s->getMajorP().y,
                           0.0,
                           s->getRatio(),
                           s->getAngle1(),
                           s->getAngle2()),
            attrib);
    }
}



void RS_FilterDXF::writeInsert(DL_WriterA& dw, RS_Insert* i,
                               const DL_Attributes& attrib) {
    dxf.writeInsert(
        dw,
        DL_InsertData(i->getName().latin1(),
                      i->getInsertionPoint().x,
                      i->getInsertionPoint().y,
                      0.0,
                      i->getScale().x,
                      i->getScale().y,
                      0.0,
                      i->getAngle()*ARAD,
                      i->getCols(), i->getRows(),
                      i->getSpacing().x,
                      i->getSpacing().y),
        attrib);
}


void RS_FilterDXF::writeText(DL_WriterA& dw, RS_Text* t,
                             const DL_Attributes& attrib) {

    if (dxf.getVersion()==VER_R12) {
        int hJust=0;
        int vJust=0;
        if (t->getHAlign()==RS2::HAlignLeft) {
            hJust=0;
        } else if (t->getHAlign()==RS2::HAlignCenter) {
            hJust=1;
        } else if (t->getHAlign()==RS2::HAlignRight) {
            hJust=2;
        }
        if (t->getVAlign()==RS2::VAlignTop) {
            vJust=3;
        } else if (t->getVAlign()==RS2::VAlignMiddle) {
            vJust=2;
        } else if (t->getVAlign()==RS2::VAlignBottom) {
            vJust=1;
        }
        dxf.writeText(
            dw,
            DL_TextData(t->getInsertionPoint().x,
                        t->getInsertionPoint().y,
                        0.0,
                        t->getInsertionPoint().x,
                        t->getInsertionPoint().y,
                        0.0,
                        t->getHeight(),
                        1.0,
                        0,
                        hJust, vJust,
                        (const char*)toDxfString(
                            t->getText()).local8Bit(),
                        (const char*)t->getStyle().local8Bit(),
                        t->getAngle()),
            attrib);

    } else {
        int attachmentPoint=1;
        if (t->getHAlign()==RS2::HAlignLeft) {
            attachmentPoint=1;
        } else if (t->getHAlign()==RS2::HAlignCenter) {
            attachmentPoint=2;
        } else if (t->getHAlign()==RS2::HAlignRight) {
            attachmentPoint=3;
        }
        if (t->getVAlign()==RS2::VAlignTop) {
            attachmentPoint+=0;
        } else if (t->getVAlign()==RS2::VAlignMiddle) {
            attachmentPoint+=3;
        } else if (t->getVAlign()==RS2::VAlignBottom) {
            attachmentPoint+=6;
        }

        dxf.writeMText(
            dw,
            DL_MTextData(t->getInsertionPoint().x,
                         t->getInsertionPoint().y,
                         0.0,
                         t->getHeight(),
                         t->getWidth(),
                         attachmentPoint,
                         t->getDrawingDirection(),
                         t->getLineSpacingStyle(),
                         t->getLineSpacingFactor(),
                         (const char*)toDxfString(
                             t->getText()).local8Bit(),
                         (const char*)t->getStyle().local8Bit(),
                         t->getAngle()),
            attrib);
    }
}



void RS_FilterDXF::writeDimension(DL_WriterA& dw, RS_Dimension* d,
                                  const DL_Attributes& attrib) {

    // split hatch into atomic entities:
    if (dxf.getVersion()==VER_R12) {
        writeAtomicEntities(dw, d, attrib, RS2::ResolveNone);
        return;
    }

    int type;
    int attachmentPoint=1;
    if (d->getHAlign()==RS2::HAlignLeft) {
        attachmentPoint=1;
    } else if (d->getHAlign()==RS2::HAlignCenter) {
        attachmentPoint=2;
    } else if (d->getHAlign()==RS2::HAlignRight) {
        attachmentPoint=3;
    }
    if (d->getVAlign()==RS2::VAlignTop) {
        attachmentPoint+=0;
    } else if (d->getVAlign()==RS2::VAlignMiddle) {
        attachmentPoint+=3;
    } else if (d->getVAlign()==RS2::VAlignBottom) {
        attachmentPoint+=6;
    }

    switch (d->rtti()) {
    case RS2::EntityDimAligned:
        type = 1;
        break;
    case RS2::EntityDimLinear:
        type = 0;
        break;
    case RS2::EntityDimRadial:
        type = 4;
        break;
    case RS2::EntityDimDiametric:
        type = 3;
        break;
    default:
        type = 0;
        break;
    }

    DL_DimensionData dimData(d->getDefinitionPoint().x,
                             d->getDefinitionPoint().y,
                             0.0,
                             d->getMiddleOfText().x,
                             d->getMiddleOfText().y,
                             0.0,
                             type,
                             attachmentPoint,
                             d->getLineSpacingStyle(),
                             d->getLineSpacingFactor(),
                             (const char*)toDxfString(
                                 d->getText()).local8Bit(),
                             (const char*)d->getStyle().local8Bit(),
                             d->getAngle());

    if (d->rtti()==RS2::EntityDimAligned) {
        RS_DimAligned* da = (RS_DimAligned*)d;

        DL_DimAlignedData dimAlignedData(da->getExtensionPoint1().x,
                                         da->getExtensionPoint1().y,
                                         0.0,
                                         da->getExtensionPoint2().x,
                                         da->getExtensionPoint2().y,
                                         0.0);

        dxf.writeDimAligned(dw, dimData, dimAlignedData, attrib);
    } else if (d->rtti()==RS2::EntityDimLinear) {
        RS_DimLinear* dl = (RS_DimLinear*)d;

        DL_DimLinearData dimLinearData(dl->getExtensionPoint1().x,
                                       dl->getExtensionPoint1().y,
                                       0.0,
                                       dl->getExtensionPoint2().x,
                                       dl->getExtensionPoint2().y,
                                       0.0,
                                       dl->getAngle(),
                                       dl->getOblique());

        dxf.writeDimLinear(dw, dimData, dimLinearData, attrib);
    } else if (d->rtti()==RS2::EntityDimRadial) {
        RS_DimRadial* dr = (RS_DimRadial*)d;

        DL_DimRadialData dimRadialData(dr->getDefinitionPoint().x,
                                       dr->getDefinitionPoint().y,
                                       0.0,
                                       dr->getLeader());

        dxf.writeDimRadial(dw, dimData, dimRadialData, attrib);
    } else if (d->rtti()==RS2::EntityDimDiametric) {
        RS_DimDiametric* dr = (RS_DimDiametric*)d;

        DL_DimDiametricData dimDiametricData(dr->getDefinitionPoint().x,
                                             dr->getDefinitionPoint().y,
                                             0.0,
                                             dr->getLeader());

        dxf.writeDimDiametric(dw, dimData, dimDiametricData, attrib);
    } else if (d->rtti()==RS2::EntityDimAngular) {
        RS_DimAngular* da = (RS_DimAngular*)d;

        DL_DimAngularData dimAngularData(da->getDefinitionPoint1().x,
                                         da->getDefinitionPoint1().y,
                                         0.0,
                                         da->getDefinitionPoint2().x,
                                         da->getDefinitionPoint2().y,
                                         0.0,
                                         da->getDefinitionPoint3().x,
                                         da->getDefinitionPoint3().y,
                                         0.0,
                                         da->getDefinitionPoint4().x,
                                         da->getDefinitionPoint4().y,
                                         0.0);

        dxf.writeDimAngular(dw, dimData, dimAngularData, attrib);
    }

}


void RS_FilterDXF::writeLeader(DL_WriterA& dw, RS_Leader* l,
                               const DL_Attributes& attrib) {
    if (l->count()>0) {
        dxf.writeLeader(
            dw,
            DL_LeaderData(l->hasArrowHead(),
                          0,
                          3,
                          0,
                          0,
                          1.0,
                          10.0,
                          l->count()),
            attrib);
        bool first = true;
        for (RS_Entity* v=l->firstEntity(RS2::ResolveNone);
                v!=NULL;
                v=l->nextEntity(RS2::ResolveNone)) {

            // Write line verties:
            if (v->rtti()==RS2::EntityLine) {
                RS_Line* l = (RS_Line*)v;
                if (first) {
                    dxf.writeLeaderVertex(
                        dw,
                        DL_LeaderVertexData(l->getStartpoint().x,
                                            l->getStartpoint().y,
                                            0.0));
                    first = false;
                }
                dxf.writeLeaderVertex(
                    dw,
                    DL_LeaderVertexData(l->getEndpoint().x,
                                        l->getEndpoint().y,
                                        0.0));
            }
        }
    } else {
        RS_DEBUG->print(RS_Debug::D_WARNING,
			"dropping leader with no vertices");
    }
}


void RS_FilterDXF::writeHatch(DL_WriterA& dw, RS_Hatch* h,
                              const DL_Attributes& attrib) {

    // split hatch into atomic entities:
    if (dxf.getVersion()==VER_R12) {
        writeAtomicEntities(dw, h, attrib, RS2::ResolveAll);
        return;
    }

    bool writeIt = true;
    if (h->countLoops()>0) {
        // check if all of the loops contain entities:
        for (RS_Entity* l=h->firstEntity(RS2::ResolveNone);
                l!=NULL;
                l=h->nextEntity(RS2::ResolveNone)) {

            if (l->isContainer() && !l->getFlag(RS2::FlagTemp)) {
                if (l->count()==0) {
                    writeIt = false;
                }
            }
        }
    } else {
        writeIt = false;
    }

    if (!writeIt) {
        RS_DEBUG->print(RS_Debug::D_WARNING,
			"RS_FilterDXF::writeHatch: Dropping Hatch");
    } else {
        DL_HatchData data(h->countLoops(),
                          h->isSolid(),
                          h->getScale(),
                          h->getAngle(),
                          (const char*)h->getPattern().local8Bit());
        dxf.writeHatch1(dw, data, attrib);

        for (RS_Entity* l=h->firstEntity(RS2::ResolveNone);
                l!=NULL;
                l=h->nextEntity(RS2::ResolveNone)) {

            // Write hatch loops:
            if (l->isContainer() && !l->getFlag(RS2::FlagTemp)) {
                RS_EntityContainer* loop = (RS_EntityContainer*)l;
                DL_HatchLoopData lData(loop->count());
                dxf.writeHatchLoop1(dw, lData);

                for (RS_Entity* ed=loop->firstEntity(RS2::ResolveNone);
                        ed!=NULL;
                        ed=loop->nextEntity(RS2::ResolveNone)) {

                    // Write hatch loop edges:
                    if (ed->rtti()==RS2::EntityLine) {
                        RS_Line* ln = (RS_Line*)ed;
                        dxf.writeHatchEdge(
                            dw,
                            DL_HatchEdgeData(ln->getStartpoint().x,
                                             ln->getStartpoint().y,
                                             ln->getEndpoint().x,
                                             ln->getEndpoint().y));
                    } else if (ed->rtti()==RS2::EntityArc) {
                        RS_Arc* ar = (RS_Arc*)ed;
                        if (!ar->isReversed()) {
                            dxf.writeHatchEdge(
                                dw,
                                DL_HatchEdgeData(ar->getCenter().x,
                                                 ar->getCenter().y,
                                                 ar->getRadius(),
                                                 ar->getAngle1(),
                                                 ar->getAngle2(),
                                                 true));
                        } else {
                            dxf.writeHatchEdge(
                                dw,
                                DL_HatchEdgeData(ar->getCenter().x,
                                                 ar->getCenter().y,