protected bool IsVertex(Geometry geometry, FormElement formElement)
{
if (!formElement.IsFull())
{
return(false);
}
if (formElement.count != 1)
{
return(false);
}
string[] fields = formElement.fields;
int id = geometry.SignVertex(fields[0]);
bool result = id >= 0;
return(result);
}
protected bool IsTopEdge(TriPyramid triPyramid, FormElement formElement)
{
if (!formElement.IsFull())
{
return(false);
}
if (formElement.count != 2)
{
return(false);
}
string[] fields = formElement.fields;
bool result = (triPyramid.IsSignTop(fields[0]) && triPyramid.IsSignBottom(fields[1])) ||
(triPyramid.IsSignTop(fields[1]) && triPyramid.IsSignBottom(fields[0]));
return(result);
}
protected bool IsTwoVertex(Geometry geometry, FormElement formElement)
{
if (!formElement.IsFull())
{
return(false);
}
if (formElement.count != 2)
{
return(false);
}
string[] fields = formElement.fields;
int id1 = geometry.SignVertex(fields[0]);
int id2 = geometry.SignVertex(fields[1]);
bool result = (id1 >= 0 && id2 >= 0) && (fields[0] != fields[1]);
return(result);
}
protected bool IsTopTCorner(TriPyramid triPyramid, FormElement formElement)
{
if (!formElement.IsFull())
{
return(false);
}
if (formElement.count != 3)
{
return(false);
}
string[] fields = formElement.fields;
bool result = triPyramid.IsSignTop(fields[1]) && triPyramid.IsSignBottom(fields[0]) && triPyramid.IsSignBottom(fields[2]);
result = result && (fields[0] != fields[1]) && (fields[0] != fields[2]) && (fields[1] != fields[2]);
return(result);
}
protected bool IsFace(Geometry geometry, FormElement formElement)
{
if (!formElement.IsFull())
{
return(false);
}
if (formElement.count < 3)
{
return(false);
}
string[] fields = formElement.fields;
int[] ids = new int[fields.Length];
for (int i = 0; i < fields.Length; i++)
{
ids[i] = geometry.SignVertex(fields[i]);
}
bool result = geometry.IsFace(ids);
return(result);
}
protected bool IsCorner(Geometry geometry, FormElement formElement)
{
if (!formElement.IsFull())
{
return(false);
}
if (formElement.count != 3)
{
return(false);
}
string[] fields = formElement.fields;
int id1 = geometry.SignVertex(fields[0]);
int id2 = geometry.SignVertex(fields[1]);
int id3 = geometry.SignVertex(fields[2]);
bool result = geometry.IsEdge(id1, id2) && geometry.IsEdge(id3, id2);
result = result && (fields[0] != fields[1]) && (fields[0] != fields[2]) && (fields[1] != fields[2]);
return(result);
}
protected FormElement EdgesToCorner(FormElement formElement1, FormElement formElement2)
{
FormElement result = new FormElement(3);
if (!formElement1.IsFull() || !formElement2.IsFull())
{
return(result);
}
if (formElement1.count != 2 || formElement2.count != 2)
{
return(result);
}
string[] fields1 = formElement1.fields;
string[] fields2 = formElement2.fields;
Dictionary <string, int> map = new Dictionary <string, int>();
MapIncrement(map, fields1[0]);
MapIncrement(map, fields1[1]);
MapIncrement(map, fields2[0]);
MapIncrement(map, fields2[1]);
List <KeyValuePair <string, int> > list = map.OrderBy(o => o.Value).ToList();
if (list.Count != 3)
{
return(result);
}
result.fields[0] = list[0].Key;
result.fields[1] = list[2].Key;
result.fields[2] = list[1].Key;
return(result);
}