public static void AddPointsToObj(ref Obj obj, List <Vector3> pPoints, Vector3 pOffset, bool pMoveToCenter = true)
{
foreach (Vector3 p in pPoints)
{
Vector3 clonePoint = p;
if (pMoveToCenter)
{
MoveToCenter(ref clonePoint);
}
else
{
MoveByOffset(ref clonePoint, pOffset);
}
//swap yz in obj
//SwapYZ(ref clonePoint);
Vertex v1 = new Vertex(clonePoint, obj.GetNextVertexIndex());
obj.AddVertex(v1);
Vertex v2 = new Vertex(clonePoint + Vector3.UnitX * POINT_OFFSET, obj.GetNextVertexIndex());
obj.AddVertex(v2);
Vertex v3 = new Vertex(clonePoint + Vector3.UnitZ * POINT_OFFSET, obj.GetNextVertexIndex());
obj.AddVertex(v3);
obj.FaceList.Add(new Face(new List <Vertex> {
v1, v2, v3
}));
//create 4-side representation of point - otherwise just triangle - big data save
if (!simplePointsObj)
{
Vertex v4 = new Vertex(clonePoint + Vector3.UnitY * POINT_OFFSET, obj.GetNextVertexIndex());
obj.AddVertex(v4);
obj.FaceList.Add(new Face(new List <Vertex> {
v1, v2, v4
}));
obj.FaceList.Add(new Face(new List <Vertex> {
v1, v3, v4
}));
obj.FaceList.Add(new Face(new List <Vertex> {
v2, v3, v4
}));
}
}
}
public static void AddLineToObj(ref Obj obj, Vector3 pFrom, Vector3 pTo, float pWidthMultiply = 1)
{
MoveToCenter(ref pFrom);
//SwapYZ(ref pFrom);
float pointOffset = POINT_OFFSET * pWidthMultiply;
Vertex v1 = new Vertex(pFrom, obj.GetNextVertexIndex());
obj.AddVertex(v1);
Vertex v2 = new Vertex(pFrom + Vector3.UnitX * pointOffset, obj.GetNextVertexIndex());
obj.AddVertex(v2);
Vertex v3 = new Vertex(pFrom + Vector3.UnitZ * pointOffset, obj.GetNextVertexIndex());
obj.AddVertex(v3);
MoveToCenter(ref pTo);
//SwapYZ(ref pTo);
Vertex v4 = new Vertex(pTo, obj.GetNextVertexIndex());
obj.AddVertex(v4);
/*Vertex v5 = new Vertex(nextP + Vector3.UnitX * POINT_OFFSET, vertexIndex);
* pointVertices.Add(v5);
* vertexIndex++;
* Vertex v6 = new Vertex(p + Vector3.UnitZ * POINT_OFFSET, vertexIndex);
* pointVertices.Add(v6);
* vertexIndex++;*/
//create 4-side representation of point
obj.FaceList.Add(new Face(new List <Vertex> {
v1, v2, v4
}));
obj.FaceList.Add(new Face(new List <Vertex> {
v2, v3, v4
}));
obj.FaceList.Add(new Face(new List <Vertex> {
v3, v1, v4
}));
//obj.FaceList.Add(new Face(new List<Vertex> { v4, v5, v3 }));
//obj.FaceList.Add(new Face(new List<Vertex> { v5, v6, v3 }));
//obj.FaceList.Add(new Face(new List<Vertex> { v6, v4, v3 }));
}
public static void AddFaceToObj(ref Obj obj, Vector3 pPoint1, Vector3 pPoint2, Vector3 pPoint3)
{
MoveToCenter(ref pPoint1);
MoveToCenter(ref pPoint2);
MoveToCenter(ref pPoint3);
//float pointOffset = POINT_OFFSET;
Vertex v1 = new Vertex(pPoint1, obj.GetNextVertexIndex());
obj.AddVertex(v1);
Vertex v2 = new Vertex(pPoint2, obj.GetNextVertexIndex());
obj.AddVertex(v2);
Vertex v3 = new Vertex(pPoint3, obj.GetNextVertexIndex());
obj.AddVertex(v3);
obj.FaceList.Add(new Face(new List <Vertex> {
v1, v2, v3
}));
}
public static Obj ExportToObj(string pArrayName, EExportStrategy pStrategy, bool pUseSmoothHeight,
Tuple <int, int> pStartIndex, Tuple <int, int> pEndIndex)
{
CGroundArray pArray = CProjectData.Points.groundArray;
Obj obj = new Obj(pArrayName);
float minHeight = CProjectData.GetMinHeight();
int missingCoordCount = 0;
int xStart = pStartIndex.Item1;
int yStart = pStartIndex.Item2;
int xEnd = pEndIndex.Item1 + 1;
int yEnd = pEndIndex.Item2 + 1;
xEnd = Math.Min(xEnd, pArray.arrayXRange);
yEnd = Math.Min(yEnd, pArray.arrayYRange);
//prepare vertices
for (int x = xStart; x < xEnd; x++)
{
for (int y = yStart; y < yEnd; y++)
{
Vertex v = new Vertex();
CGroundField el = pArray.GetField(x, y);
float? height = el.GetHeight(pUseSmoothHeight ? CField.EHeight.Smooth : CField.EHeight.MaxZ);
height = GetHeight(pStrategy, y, el, height);
//create vertex only if height is defined
if (height != null)
{
//TODO: ATTENTION! in OBJ the height value = Y, while in LAS format it is Z and X,Y are space coordinates
//move heights so the lowest point touches the 0
//if (pHeight != EHeight.Tree)
{
height -= minHeight;
}
v.LoadFromStringArray(new[] { "v", pArray.GetFieldXCoord(x).ToString(),
height.ToString(), pArray.GetFieldYCoord(y).ToString() });
obj.AddVertex(v);
//record the index of vertex associated with this field position
el.VertexIndex = obj.VertexList.Count; //first index = 1 (not 0)!
}
else
{
missingCoordCount++;
}
}
}
int faceCount = 0;
//generate faces
for (int x = xStart; x < xEnd - 1; x++)
{
for (int y = yStart; y < yEnd - 1; y++)
{
//create face only if all necessary vertices has been defined. -1 = not defined
//| /| 3:[0,1] 2:[1,1]
//|/ | 1:[0,0] 4:[1,0]
//we create 2 faces: (1,2,3) and (1,2,4)
int ind1 = pArray.GetField(x, y).VertexIndex;
if (ind1 != -1)
{
int ind2 = pArray.GetField(x + 1, y + 1).VertexIndex;
if (ind2 != -1)
{
int ind3 = pArray.GetField(x, y + 1).VertexIndex;
if (ind3 != -1)
{
Face f = new Face();
f.LoadFromStringArray(new[]
{
"f", ind1.ToString(), ind2.ToString(), ind3.ToString() //ind1+"//"+ind3, ind3+"//"+ind2, ind2+"//"+ind1
});
obj.FaceList.Add(f);
faceCount++;
}
int ind4 = pArray.GetField(x + 1, y).VertexIndex;
if (ind4 != -1)
{
Face f = new Face();
f.LoadFromStringArray(new[]
{
"f", ind1.ToString(), ind4.ToString(), ind2.ToString()
});
obj.FaceList.Add(f);
}
}
}
}
}
return(obj);
}
