/*!
Should be called _once_ after you've finished setting up your
layer (name and color number). Calling this method more than once
for a layer might lead to hard-to-find bugs. After calling this
method, the layer information (color number) will be available to
entities using this layer.
*/
void
dimeLayerTable::registerLayer(dimeModel * model)
{
if (this->layerInfo == NULL && this->layerName != NULL) {
this->layerInfo = (dimeLayer*)
model->addLayer(this->layerName, DXFABS(this->colorNumber));
}
}
dimeTableEntry *
dimeLayerTable::copy(dimeModel * const model) const
{
dimeMemHandler *memh = model->getMemHandler();
dimeLayerTable *l = new(memh) dimeLayerTable;
l->colorNumber = this->colorNumber;
if (this->layerName) {
DXF_STRCPY(memh, l->layerName, this->layerName);
}
if (this->layerInfo) {
l->layerInfo = (dimeLayer*)model->addLayer(this->layerInfo->getLayerName(),
DXFABS(this->colorNumber));
}
if (!copyRecords(l, model)) {
// check if allocated on heap.
if (!memh) delete l;
l = NULL;
}
return l;
}
void
convert_arc(const dimeEntity *entity, const dimeState *state,
dxfLayerData *layerData, dxfConverter *converter)
{
dimeArc *arc = (dimeArc*) entity;
dimeMatrix matrix;
state->getMatrix(matrix);
dimeVec3f e = arc->getExtrusionDir();
dxfdouble thickness = arc->getThickness();
if (e != dimeVec3f(0,0,1)) {
dimeMatrix m;
dimeEntity::generateUCS(e, m);
matrix.multRight(m);
}
e = dimeVec3f(0,0,1);
dimeVec3f center;
arc->getCenter(center);
dimeParam param;
if (arc->getRecord(38, param)) {
center[2] = param.double_data;
}
dxfdouble radius = arc->getRadius();
double end = arc->getEndAngle();
while (end < arc->getStartAngle()) {
end += 360.0;
}
double delta = DXFDEG2RAD(end - arc->getStartAngle());
if (delta == 0.0) {
#ifndef NDEBUG
fprintf(stderr,"ARC with startAngle == endAngle!\n");
#endif
end += 2*M_PI;
delta = DXFDEG2RAD(end - arc->getStartAngle());
}
int ARC_NUMPTS = converter->getNumSub();
if (ARC_NUMPTS <= 0) { // use maxerr
ARC_NUMPTS = calc_num_sub(converter->getMaxerr(), radius);
}
// find the number of this ARC that fits inside 2PI
int parts = (int) DXFABS((2*M_PI) / delta);
// find # pts to use for arc
// add one to avoid arcs with 0 line segments
int numpts = ARC_NUMPTS / parts + 1;
if (numpts > ARC_NUMPTS) numpts = ARC_NUMPTS;
double inc = delta / numpts;
double rad = DXFDEG2RAD(arc->getStartAngle());
int i;
dimeVec3f v;
dimeVec3f prev(center[0] + radius * cos(rad),
center[1] + radius * sin(rad),
center[2]);
rad += inc;
for (i = 1; i < numpts; i++) {
v = dimeVec3f(center[0] + radius * cos(rad),
center[1] + radius * sin(rad),
center[2]);
if (thickness == 0.0) {
layerData->addLine(prev, v, &matrix);
}
else {
layerData->addQuad(prev, v, v + e * thickness, prev + e * thickness,
&matrix);
}
prev = v;
rad += inc;
}
rad = DXFDEG2RAD(end);
v = dimeVec3f(center[0] + radius * cos(rad),
center[1] + radius * sin(rad),
center[2]);
if (thickness == 0.0) {
layerData->addLine(prev, v, &matrix);
}
else {
layerData->addQuad(prev, v, v + e * thickness, prev + e * thickness,
&matrix);
}
}
/*!
Sets the color number.
*/
void
dimeLayerTable::setColorNumber(const int16 colnum)
{
this->colorNumber = colnum;
if (this->layerInfo) this->layerInfo->setColorNumber(DXFABS(this->colorNumber));
}
