//this is a simple way to get the polyLoop X product.
//this is a support function used by the Function TestBuildingStory RHR above
//This X Product routine is the first attempt to produce a X product from coordinates Since the coordinates used to define
//a level plane never create an irregular polygon, this scheme worked.
//it will only assuredly work properly for a triangle, square, or rectangle. Shapes other than these should use subsequent XProduct
//functions as created below.
//Created by CHarriman, Senior Product Manager Carmel Software
//Nov 2012
public static VectorMath.Vector.CartVect GetPolyLoopXProduct(XmlNodeList PlanarGeometry, string level)
{
int cartPtCount = 0;
VectorMath.Vector.CartVect xProd = new VectorMath.Vector.CartVect();
//gathers all the cartesian points in a given polyloop
int nodecount = PlanarGeometry.Count;
VectorMath.Vector.CartCoord[] vCoords = new VectorMath.Vector.CartCoord[3];
foreach (XmlNode PolyLoops in PlanarGeometry)
{
foreach (XmlNode cartesianPoints in PolyLoops)
{
//test the polyloop RHR convention
//count the total number of cartesian coordinates
int coordcount = cartesianPoints.ChildNodes.Count;
//I may want to test the number of coordinates to make sure it matches, or if it has a minimum number of coords
if (coordcount < minPlanePoints)
{
//result += "Insufficient number of cartesian points to define a plane";
return xProd;
}
else
{
cartPtCount = 0;
//gets a set of XYZ coordinates, one at a time
foreach (XmlNode coordinates in cartesianPoints.ChildNodes)
{
if (cartPtCount < 3)
{
VectorMath.Vector.CartCoord vC = new VectorMath.Vector.CartCoord();
vCoords[cartPtCount] = vC;
}
else { break; }
int crdCount = 1;
//gets each coordinate one at a time
//filtering through the inner children of the PolyLoop
foreach (XmlNode coordinate in coordinates.ChildNodes)
{
double coord = Convert.ToDouble(coordinate.InnerText);
switch (crdCount)
{
case 1:
vCoords[cartPtCount].X = coord;
break;
case 2:
vCoords[cartPtCount].Y = coord;
break;
case 3:
vCoords[cartPtCount].Z = coord;
break;
default:
break;
}
if (vCoords[cartPtCount].Z.ToString() == level) { break; };
crdCount++;
}
cartPtCount++;
}
}
}
if (vCoords[(cartPtCount - 1)].Z.ToString() == level) { break; }
}
//Get the Cross Product
VectorMath.Vector.CartVect v1 = VectorMath.Vector.CreateVector(vCoords[0], vCoords[1]);
VectorMath.Vector.CartVect v2 = VectorMath.Vector.CreateVector(vCoords[1], vCoords[2]);
xProd = VectorMath.Vector.CrossProduct(v1, v2);
xProd = Vector.UnitVector(xProd);
return xProd;
}
//this is a support function used by the GetLevelHeights function above. It is not directly,
//iteslf, a test
private static List<string> GetLevelZs(XmlNodeList PlanarGeometry, List<string> LevelZs)
{
string result = "";
int polyLoopCount = 0;
try
{
int nodecount = PlanarGeometry.Count;
VectorMath.Vector.CartCoord[] vCoords = new VectorMath.Vector.CartCoord[nodecount];
foreach (XmlNode PolyLoops in PlanarGeometry)
{
//gathers all the cartesian points in a given polyloop
foreach (XmlNode cartesianPoints in PolyLoops)
{
//test the polyloop RHR convention
//count the total number of cartesian coordinates
int coordcount = cartesianPoints.ChildNodes.Count;
//I may want to test the number of coordinates to make sure it matches
//I do want to ensure I have a minimum number of coords
if (coordcount < minPlanePoints)
{
result += "Insufficient number of cartesian points to define a plane";
LevelZs.Add(result);
return LevelZs;
}
else
{
int cartPtCount = 0;
//gets a set of XYZ coordinates, one at a time
foreach (XmlNode coordinates in cartesianPoints.ChildNodes)
{
//I will only test one Z-coordinate in each set of coordinates
if (cartPtCount < 1)
{
VectorMath.Vector.CartCoord vC = new VectorMath.Vector.CartCoord();
vCoords[polyLoopCount] = vC;
}
else { break; }
int crdCount = 1;
//gets each coordinate one at a time
foreach (XmlNode coordinate in coordinates.ChildNodes)
{
double coord = Convert.ToDouble(coordinate.InnerText);
switch (crdCount)
{
case 1:
vCoords[polyLoopCount].X = coord;
break;
case 2:
vCoords[polyLoopCount].Y = coord;
break;
case 3:
vCoords[polyLoopCount].Z = coord;
break;
default:
break;
}
crdCount++;
}
cartPtCount++;
}
}
}
polyLoopCount++;
}
//create the List that holds the z-values of each level
for (int z = 0; z < nodecount; z++)
{
LevelZs.Add(vCoords[z].Z.ToString());
}
return LevelZs;
}
catch (Exception e)
{
result += e.ToString();
LevelZs.Add(result);
return LevelZs;
}
}
