private void lPatchRichnessDensity(string filename, string epsg, int fieldIndex)
{
try
{
//Obtenemos un arraylist con toda la colección de registros del campo
ArrayList fieldRows = new ArrayList();
SchemaDB_Reader collect = new SchemaDB_Reader(filename, fieldIndex);
fieldRows = collect.FieldValues;
//obtenemos un arraylist con las categorias encontradas en el campo
ArrayList categories = new ArrayList();
SchemaDB_Reader categ = new SchemaDB_Reader();
categories = categ.categories((ArrayList)fieldRows.Clone());
_numLandscapeCategories = categories.Count;
L_Area_V totalArea = new L_Area_V(filename, epsg);
//landscape area is already in hectares
_patchRichnessDensity = ((_numLandscapeCategories / totalArea.LandscapeArea)) * 100;
}
catch (Exception ex)
{
throw ex;
}
}
private void landscapeMetrics(string filename, string epsg, double depthOfEdge)
{
try
{
L_Area_V totalArea = new L_Area_V(filename, epsg);
GeometryCoreReader metrics = new GeometryCoreReader(filename, epsg, depthOfEdge);
for (int i = 0; i < metrics.CoreAreas.Count; i++)
{
totalCoreArea += (double)metrics.CoreAreas[i];
numberOfDisjunctCoreAreas += (int)metrics.NumCoreAreas[i];
}
//total core area to hectares
totalCoreArea = totalCoreArea / 10000;
//total landscape area is already in hectares
disjunctCoreAreaDensity = ((numberOfDisjunctCoreAreas / (double)totalArea.LandscapeArea)) * 100;
}
catch (Exception ex)
{
throw ex;
}
}
private void landscapeMetrics(string filename, string epsg, int fieldIndex)
{
try
{
//Obtenemos un arraylist con toda la colección de registros del campo
ArrayList fieldRows = new ArrayList();
SchemaDB_Reader collect = new SchemaDB_Reader(filename, fieldIndex);
fieldRows = collect.FieldValues;
//obtenemos un arraylist con las categorias encontradas en el campo
ArrayList categories = new ArrayList();
SchemaDB_Reader categ = new SchemaDB_Reader();
categories = categ.categories((ArrayList)fieldRows.Clone());
_numLandscapeCategories = categories.Count;
L_Area_V totalArea = new L_Area_V(filename, epsg);
_patchRichnessDensity = ((_numLandscapeCategories / totalArea.LandscapeArea)) * 100;
C_LandscapePercent_V diversity = new C_LandscapePercent_V(filename, epsg, fieldIndex);
double _simpsonsDiversityIndexTemp = 0;
double _shannonsDiversityIndexTemp = 0;
for (int i = 0; i < diversity.CategoryNames.Count; i++)
{
_shannonsDiversityIndexTemp += ((double)diversity.LandscapePercent[i] / 100) * Math.Log(((double)diversity.LandscapePercent[i] / 100));
_simpsonsDiversityIndexTemp += Math.Pow(((double)diversity.LandscapePercent[i] / 100), 2);
}
_shannonsDiversityIndex = _shannonsDiversityIndexTemp * -1;
_simpsonsDiversityIndex = 1 - _simpsonsDiversityIndexTemp;
_modifiedSimpsonsDiversityIndex = -Math.Log(_simpsonsDiversityIndexTemp);
_shannonsEvennessIndex = _shannonsDiversityIndex / Math.Log(_numLandscapeCategories);
_simpsonsEvennessIndex = _simpsonsDiversityIndex / (1 - (1 / (double)_numLandscapeCategories));
_modifiedSimpsonsEvennessIndex = _modifiedSimpsonsDiversityIndex / Math.Log(_numLandscapeCategories);
}
catch (Exception ex)
{
throw ex;
}
}
private void lPatchesDensity(string filename, string epsg)
{
try
{
L_Area_V LArea = new L_Area_V(filename, epsg);
_landscapeArea = LArea.LandscapeArea;
L_NumLandscapePatches_V NLP = new L_NumLandscapePatches_V(filename, epsg);
_numLandscapePatches = NLP.NumLandscapePatches;
_landscapePatchesDensity = ((_numLandscapePatches / _landscapeArea) * 10000) * 100;
}
catch (Exception ex)
{
throw ex;
}
}
