public PointGetter(CurvesTopology crvTopology, int fromIndex, SearchMode mode)
{
_crvTopology = crvTopology;
_fromIndex = fromIndex;
if (!Enum.IsDefined(typeof(SearchMode), mode))
{
throw new ArgumentException("Enum is undefined.", "mode");
}
_sm = mode;
if (fromIndex != -1)
{
switch (mode)
{
case SearchMode.CurveLength:
_distances = crvTopology.MeasureAllEdgeLengths();
break;
case SearchMode.LinearDistance:
_distances = crvTopology.MeasureAllEdgeLinearDistances();
break;
case SearchMode.Links:
_distances = null;
break;
default:
throw new ApplicationException("Behaviour for this enum value is undefined.");
}
}
_pathSearchMethod = PathMethod.FromMode(_sm, _crvTopology, _distances);
}
public TrackingPointGetter(string prompt, CurvesTopology crvTopology, int fromIndex, SearchMode mode)
{
_crvTopology = crvTopology;
_fromIndex = fromIndex;
if (!Enum.IsDefined(typeof(SearchMode), mode))
{
throw new ArgumentException("Enum is undefined.", "mode");
}
_sm = mode;
if (!string.IsNullOrEmpty(prompt))
{
_getPoint.SetCommandPrompt(prompt);
}
if (fromIndex != -1)
{
switch (mode)
{
case SearchMode.CurveLength:
_distances = crvTopology.MeasureAllEdgeLengths();
break;
case SearchMode.LinearDistance:
_distances = crvTopology.MeasureAllEdgeLinearDistances();
break;
case SearchMode.Links:
_distances = null;
break;
default:
throw new ApplicationException("Behaviour for this enum value is undefined.");
}
}
_getPoint.DynamicDraw += DynamicDraw;
_pathSearchMethod = PathMethod.FromMode(_sm, _crvTopology, _distances);
}
protected override Result RunCommand(RhinoDoc doc, RunMode mode)
{
SearchMode sm = SearchMode.CurveLength;
Curve[] curves;
OptionToggle tog = new OptionToggle(false, "Hide", "Show");
OptionDouble tol = new OptionDouble(RhinoDoc.ActiveDoc.ModelAbsoluteTolerance, true, 0.0);
using (CurvesGetter getLines = new CurvesGetter("Select curves meeting at endpoints. Press Enter when done"))
{
for ( ; ;)
{
getLines.ClearCommandOptions();
getLines.EnableClearObjectsOnEntry(false);
int showInt = getLines.AddOptionToggle("Topology", ref tog);
int tolInt = getLines.AddOptionDouble("Tolerance", ref tol);
int modeInt = GetterExtension.AddEnumOptionList(getLines, sm);
if (getLines.Curves(1, 0, out curves))
{
break;
}
else
{
if (getLines.Result() == GetResult.Option)
{
if (getLines.Option().Index == modeInt)
{
sm = GetterExtension.RetrieveEnumOptionValue <SearchMode>
(getLines.Option().CurrentListOptionIndex);
}
continue;
}
else
{
RhinoApp.WriteLine("Less than three lines were selected");
return(Result.Cancel);
}
}
}
}
CurvesTopology crvTopology = new CurvesTopology(curves, tol.CurrentValue);
Guid[] ids = null;
if (tog.CurrentValue)
{
ids = CurvesTopologyPreview.Mark(crvTopology, Color.LightBlue, Color.LightCoral);
}
int walkFromIndex;
using (var getStart = new TrackingPointGetter("Select the start point of the walk on the curves", crvTopology))
{
if (getStart.GetPointOnTopology(out walkFromIndex) != Result.Success)
{
EndOperations(ids);
return(Result.Cancel);
}
}
Result wasSuccessful = Result.Cancel;
for (; ;)
{
int walkToIndex;
double[] distances;
using (var getEnd = new TrackingPointGetter("Select the end point", crvTopology, walkFromIndex, sm))
{
if (getEnd.GetPointOnTopology(out walkToIndex) != Result.Success)
{
break;
}
distances = getEnd.DistanceCache;
}
if (walkFromIndex == walkToIndex)
{
RhinoApp.WriteLine("Start and end points are equal");
EndOperations(ids);
return(Result.Nothing);
}
PathMethod pathSearch = PathMethod.FromMode(sm, crvTopology, distances);
int[] nIndices, eIndices;
bool[] eDirs;
double totLength;
Curve c =
pathSearch.Cross(walkFromIndex, walkToIndex, out nIndices, out eIndices, out eDirs, out totLength);
if (c != null && c.IsValid)
{
if (tog.CurrentValue)
{
RhinoApp.WriteLine("Vertices: {0}", FormatNumbers(nIndices));
RhinoApp.WriteLine("Edges: {0}", FormatNumbers(eIndices));
}
var a = RhinoDoc.ActiveDoc.CreateDefaultAttributes();
Guid g = RhinoDoc.ActiveDoc.Objects.AddCurve(c, a);
var obj = RhinoDoc.ActiveDoc.Objects.Find(g);
if (obj != null)
{
obj.Select(true);
wasSuccessful = Result.Success;
walkFromIndex = walkToIndex;
}
else
{
RhinoApp.WriteLine("An error occurred while adding the new polycurve.");
wasSuccessful = Result.Failure;
break;
}
}
else
{
RhinoApp.WriteLine("No path was found. Nodes are isolated.");
wasSuccessful = Result.Nothing;
}
}
EndOperations(ids);
return(wasSuccessful);
}