def execute(self, parameters, messages):
"""The source code of the tool."""
visibility_lines = parameters[0].valueAsText
observer_offset_field = parameters[1].valueAsText
target_offset_field = parameters[2].valueAsText
self.b1 = float(parameters[5].valueAsText)
self.h = float(parameters[3].valueAsText)
self.beta = parameters[4].value
useCurvatures = parameters[6].value
refCoeff = parameters[7].value
fieldsNew = [ ("Visible", "Visibility of target", "SHORT"),
("ViewAngle", "Viewing angle of target", "DOUBLE"),
("ElevDiff", "Elevation difference of observer and target", "DOUBLE"),
("AngleDiff_H", "Angle difference of target to horizon", "DOUBLE"),
("ElevDiff_H", "Elevation difference of target to horizon", "DOUBLE"),
("SlopeDiff", "Difference of target viewing angle to LoS slope", "DOUBLE"),
("Horizon_C", "Horizon count", "SHORT"),
("HorDist", "Distance of horizon from observer", "DOUBLE"),
("FuzzyVis", "Fuzzy visibility", "DOUBLE")]
fieldsNames = [row[0] for row in fieldsNew]
columns = ["OBJECTID", "SHAPE@"] + [observer_offset_field, target_offset_field]
farcmap.prepareDataColumns(visibility_lines, fieldsNew)
number_of_LoS = int(arcpy.GetCount_management(visibility_lines).getOutput(0))
arcpy.SetProgressor("step", "Analyzing " + str(number_of_LoS) + " lines of sight...", 0, number_of_LoS, 1)
with arcpy.da.UpdateCursor(visibility_lines, columns + fieldsNames) as cursor:
for row in cursor:
points = []
poi = visibility.WKTtoPoints(row[1].WKT)
# get coordinates of first point for distance calculation
observer_offset = row[2]
target_offset = row[3]
start_point_x = float(poi[0].split(" ")[0])
start_point_y = float(poi[0].split(" ")[1])
observer_elev = float(poi[0].split(" ")[2]) + observer_offset
# for every point do this
for i in range(0, len(poi)):
parts = poi[i].split(" ")
x = float(parts[0])
y = float(parts[1])
z = float(parts[2])
dist = visibility.distance(x, y, start_point_x, start_point_y)
if useCurvatures:
z = visibility.curvatureCorrections(z, dist, refCoeff)
if i == 0:
points.append([x, y, 0, observer_elev, -90])
elif i == len(poi) - 1:
points.append([x, y, dist, z + target_offset, visibility.angle(dist, z + target_offset - observer_elev)])
else:
points.append([x, y, dist, z, visibility.angle(dist, z - observer_elev)])
results = self.analyzeLoS(points)
for i in range(0, len(results)):
row[i + 4] = results[i]
cursor.updateRow(row)
arcpy.SetProgressorPosition()
arcpy.ResetProgressor()
return
def execute(self, parameters, messages):
"""The source code of the tool."""
visibility_lines = parameters[0].valueAsText
id_observer_field = parameters[1].valueAsText
observer_offset_field = parameters[2].valueAsText
id_target_field = parameters[3].valueAsText
target_offset_field = parameters[4].valueAsText
horizons = parameters[5].valueAsText
useCurvatures = parameters[6].value
refCoeff = parameters[7].value
workspace = fv.getPath(horizons)
file_name = horizons.replace(workspace + "\\", "")
arcpy.CreateFeatureclass_management(
workspace,
file_name,
"POINT",
has_z="ENABLED",
spatial_reference=arcpy.Describe(
visibility_lines).spatialReference)
fieldsNew = [
(id_observer_field, id_observer_field, "SHORT"),
(id_target_field, id_target_field, "SHORT"),
("Elevation", "Elevation", "DOUBLE"),
("Hor_Type", "Horizon Type", "SHORT"),
("Hide_Tar", "Hides target point", "SHORT"),
("ViewAngle", "Viewing angle", "DOUBLE"),
("AngleDiff_H", "Viewing angle difference to previous horizon",
"DOUBLE"), ("Dist_Observ", "Distance to observer", "DOUBLE"),
("OID_LoS", "OID_LoS", "SHORT")
]
fieldsNames = [row[0] for row in fieldsNew]
# field_list = [id_observer_field, id_target_field, "Elevation", "Hor_Type", "Hide_Tar", "ViewAngle",
# "AngleDiff_H", "Dist_Observ", "OID_LoS"]
functions_arcmap.prepareDataColumns(horizons, fieldsNew)
arcpy.AddMessage("\t Determination of horizons started...")
insert_cursor = arcpy.da.InsertCursor(horizons,
["SHAPE@"] + fieldsNames)
number_of_LoS = int(
arcpy.GetCount_management(visibility_lines).getOutput(0))
arcpy.SetProgressor(
"step", "Analyzing " + str(number_of_LoS) + " lines of sight...",
0, number_of_LoS, 1)
with arcpy.da.SearchCursor(visibility_lines, [
"OBJECTID", "SHAPE@", id_observer_field, id_target_field,
observer_offset_field, target_offset_field
]) as cursor:
for row in cursor:
points = []
poi = visibility.WKTtoPoints(row[1].WKT)
# get coordinates of first point for distance calculation
start_point_x = float(poi[0].split(" ")[0])
start_point_y = float(poi[0].split(" ")[1])
observer_elev = float(poi[0].split(" ")[2]) + float(row[4])
# for every point do this
for i in range(0, len(poi)):
parts = poi[i].split(" ")
x = float(parts[0])
y = float(parts[1])
z = float(parts[2])
dist = visibility.distance(x, y, start_point_x,
start_point_y)
if useCurvatures:
z = visibility.curvatureCorrections(z, dist, refCoeff)
if i == 0:
points.append([x, y, 0, observer_elev, -90])
elif i == len(poi) - 1:
points.append([
x, y, dist, z + float(row[5]),
visibility.angle(dist,
z + float(row[5]) - observer_elev)
])
else:
points.append([
x, y, dist, z,
visibility.angle(dist, z - observer_elev)
])
results = visibility.findLocalHorizons(points)
point = arcpy.Point()
for i in range(0, len(results)):
hor_type = 0
point.X = results[i][0]
point.Y = results[i][1]
point.Z = results[i][3]
ptGeometry = arcpy.PointGeometry(point)
if i == len(results) - 1:
hor_type = 1
insert_cursor.insertRow([
ptGeometry, row[2], row[3], results[i][3], hor_type,
results[i][5], results[i][4], results[i][6],
results[i][2], row[0]
])
arcpy.SetProgressorPosition()
arcpy.ResetProgressor()
arcpy.AddMessage("\t Determination of horizons sucessfuly ended.")
functions_arcmap.addLayer(horizons)
return