//multislicing boilerplate code
public void multislice(string configname, bool getOnlyToolpaths, string arguments, string stlfile_arg)
{
doActionForFile(configname, stlfile_arg, (string stlfile) => {
if (arguments.Length == 0)
{
throw new ApplicationException("Arguments must be provided!!!");
}
using (SI.ExternalSlicerManager external = createExternalSlicerManager(stlfile)) {
try {
using (SI.MultiSlicerHandler handler = new SI.MultiSlicerHandler(dll, arguments)) {
bool alsoContours = !getOnlyToolpaths && (handler.alsoContours);
modifyAutoCADDocument((Transaction tr, BlockTableRecord btr) => {
if (handler.usingScheduler)
{
multislice_3dscheduler(external, handler, alsoContours, tr, btr);
}
else
{
multislice_2dsimple(external, handler, alsoContours, tr, btr);
}
});
}
} catch {
external.terminate();
throw;
}
}
});
}
//2d simple multislicing
private unsafe void multislice_2dsimple(SI.ExternalSlicerManager external, SI.MultiSlicerHandler handler, bool alsoContours, Transaction tr, BlockTableRecord btr)
{
double zstep = handler.z_uniform_step;
double[] zs = handler.use_z_base ? external.prepareSTLSimple(zstep, handler.z_base) :
external.prepareSTLSimple(zstep);
int numslices = zs.Length;
for (int i = 0; i < numslices; ++i)
{
SI.IntPoint[][] rawslice = external.readSlice();
if (rawslice.Length == 0)
{
continue;
}
if (alsoContours)
{
showExternalSlice(rawslice, external.scalingFactor, zs[i], tr, btr);
}
void *slice = handler.feedRawSliceIntoDll(rawslice);
rawslice = null;
void *result = handler.computeSlice2D(slice); //the slice is freed in computeSlice2D()
if (result == null)
{
throw new ApplicationException("Error in compute2D: " + dll.err);
}
try {
const bool mode2D = true;
int ntools = handler.numProcesses;
for (int j = 0; j < ntools; ++j)
{
readOutputSlices(result, mode2D, alsoContours, zs[i], j, tr, btr);
}
} finally {
if (result != null)
{
dll.freeResult(result);
}
}
}
}
//multislicing with 3d scheduling
private unsafe void multislice_3dscheduler(SI.ExternalSlicerManager external, SI.MultiSlicerHandler handler, bool alsoContours, Transaction tr, BlockTableRecord btr)
{
double minx, maxx, miny, maxy, minz, maxz;
external.getBoundingBox(out minx, out maxx, out miny, out maxy, out minz, out maxz);
double[] zs = handler.getSlicesZs(minz, maxz);
external.sendZs(zs);
for (int i = 0; i < zs.Length; ++i)
{
SI.IntPoint[][] rawslice = external.readSlice();
if ((rawslice.Length > 0) && (alsoContours))
{
showExternalSlice(rawslice, external.scalingFactor, zs[i], tr, btr);
}
//here, it may be the moment to use dll.receiveAdditionalAdditiveContours() if we were using online feedback...
void *slice = handler.feedRawSliceIntoDll(rawslice);
rawslice = null;
handler.feedSliceToScheduler(slice); //the slice is freed in feedSliceToScheduler()
while (true)
{
void *result = handler.getResultFromScheduler();
if (result == null)
{
break;
}
try {
const bool mode2D = false;
const double z_not_used = 0.0; //for !mode2D, z is not used
const int single_sliceIdx = 0; //for !mode2D, there is a single result, not one for each tool
readOutputSlices(result, mode2D, alsoContours, z_not_used, single_sliceIdx, tr, btr);
} finally {
dll.freeResult(result);
}
}
}
}