Criando buffer apenas em uma direção específica usando o ArcGIS for Desktop? [fechadas]

Estou tentando criar um buffer para vários polígonos na orientação sudoeste. Até onde eu sei, isso não é possível usando a ferramenta buffer (eu uso o ArcGIS 10.3). Eu poderia fazer isso manualmente, mas para mais de 400 polígonos levaria muito tempo.

Alguém sabe uma maneira melhor?

Isto é mais ou menos o que pretendo:

Se você puder trabalhar arcpyum pouco em Python, poderá usar algum script para gerar essas zonas em uma direção específica. Eu fiz alguns semelhantes algumas semanas atrás, publicarei parte do meu script para ajudá-lo.

import arcpy, math, gc
# Workspace, overwrite
arcpy.env.workspace = r"YOUR_WORKSPACE"
arcpy.env.overwriteOutput = True

# INPUTS
objects_input = "objects.shp" # must be polygons
objects = "objects_lyr.shp"
arcpy.MakeFeatureLayer_management(objects_input, objects)

# OUTPUTS, most temporal
result = "result.shp"
result_erase = "in_memory" + "\\" + "result_erase"
polygon = "in_memory" + "\\" + "polygon"
polygon_dissolve = "in_memory" + "\\" + "polygon_dissolve"

arcpy.CreateFeatureclass_management(arcpy.env.workspace, result, "POLYGON")

# Parameters
distance = 300 # distance for move in direction
direction = 90 # direction in degrees (90 is from north to south)
index = 0

# Set UpdateCursor
cur_objects = arcpy.da.UpdateCursor(objects, ("FID"))
for row_objects in cur_objects:
    try:
        fid = row_objects[0]
        sql = '"FID" = ' + str(index)
        index += 1

        # Initialize lists
        lines_list = []
        lines_created = []

        # Select current feature
        arcpy.SelectLayerByAttribute_management(objects, "NEW_SELECTION", sql)
        vertexes = "in_memory" + "\\" + "vertexes"

        # Convert object to vertexes
        arcpy.FeatureVerticesToPoints_management(objects, vertexes, "ALL")
        index_vertex = 0

        # Set SearchCursor for vertexes
        cur_vertexes = arcpy.da.SearchCursor(vertexes, ("SHAPE@XY"))
        for row_vertexes in cur_vertexes:
            vertex_coords_x = row_vertexes[0][0]
            vertex_coords_y = row_vertexes[0][1]

            # Define points coordinates
            point_move_x = vertex_coords_x - (distance) * math.cos(math.radians(direction))
            point_move_y = vertex_coords_y - (distance) * math.cos(math.radians(90 - direction))

            # Make list of points
            new_line = ([[vertex_coords_x, vertex_coords_y], [point_move_x, point_move_y]])
            lines_list.append(new_line)

            # From second cycle
            if index_vertex > 0:
                lines_vertexes = ([[vertex_coords_x, vertex_coords_y], start_line])
                lines_ends = ([[point_move_x, point_move_y], end_line])
                lines_list.append(lines_vertexes)
                lines_list.append(lines_ends)
            start_line = [vertex_coords_x, vertex_coords_y]
            end_line = [point_move_x, point_move_y]
            index_vertex = index_vertex + 1

        # Cycle that makes polylines from points
        for lines_step in lines_list:
            lines_created.append(arcpy.Polyline(arcpy.Array([arcpy.Point(*sour) for sour in lines_step])))

        arcpy.FeatureToPolygon_management(lines_created, polygon)
        arcpy.AggregatePolygons_cartography(polygon, polygon_dissolve, 1)

        # Final editing
        arcpy.Erase_analysis(polygon_dissolve, objects, result_erase)
        arcpy.Append_management(result_erase, result, "NO_TEST")
        arcpy.Delete_management("in_memory")
        arcpy.Delete_management(vertexes)
        start_line = []

        # Clear selection, memory and deleting temps
        arcpy.SelectLayerByAttribute_management(objects, "CLEAR_SELECTION")
        print "Object number: " + str(index - 1) + " -- done."
        gc.collect()


    # Catch errors
    except Exception as e:
        pass
        print "Error:"
        print e
        print "\n"
        index += 1

Espero que você possa ler bem, tive que traduzir comentários e variáveis.

Este é o script que resolve o problema. Crédito e muito obrigado a david_p, que o escreveu. Acabei de adicionar alguns parênteses.

import arcpy, math, gc

# Workspace, overwrite 
arcpy.env.workspace = r"YOUR_WORKSPACE" 
arcpy.env.overwriteOutput = True

# INPUTS 
objects_input = "objects.shp" # must be polygons 
objects = "objects_lyr.shp" 
arcpy.MakeFeatureLayer_management(objects_input, objects)

# OUTPUTS, most temporal 
result = "result.shp" 
result_erase = "in_memory" + "\\" + "result_erase" 
polygon = "in_memory" + "\\" + "polygon" 
polygon_dissolve = "in_memory" + "\\" + "polygon_dissolve"

arcpy.CreateFeatureclass_management(arcpy.env.workspace, result, "POLYGON")

# Parameters 
distance = 300 # distance for move in direction 
direction = 90 # direction in degrees (90 is from north to south) 
index = 0

# Set UpdateCursor
cur_objects = arcpy.da.UpdateCursor(objects, ("FID"))
for row_objects in cur_objects:
    try:
        fid = row_objects[0]
        sql = '"FID" = ' + str(index)
        index += 1

        # Initialize lists
        lines_list = []
        lines_created = []

        # Select current feature
        arcpy.SelectLayerByAttribute_management(objects, "NEW_SELECTION", sql)
        vertexes = "in_memory" + "\\" + "vertexes"

        # Convert object to vertexes
        arcpy.FeatureVerticesToPoints_management(objects, vertexes, "ALL")
        index_vertex = 0

        # Set SearchCursor for vertexes
        cur_vertexes = arcpy.da.SearchCursor(vertexes, ("SHAPE@XY"))
        for row_vertexes in cur_vertexes:
            vertex_coords_x = row_vertexes[0][0]
            vertex_coords_y = row_vertexes[0][1]

            # Define points coordinates
            point_move_x = vertex_coords_x - (distance) * math.cos(math.radians(direction))
            point_move_y = vertex_coords_y - (distance) * math.cos(math.radians(90 - direction))

            # Make list of points
            new_line = ([[vertex_coords_x, vertex_coords_y], [point_move_x, point_move_y]])
            lines_list.append(new_line)

            # From second cycle
            if index_vertex > 0:
                lines_vertexes = ([[vertex_coords_x, vertex_coords_y], start_line])
                lines_ends = ([[point_move_x, point_move_y], end_line])
                lines_list.append(lines_vertexes)
                lines_list.append(lines_ends)
            start_line = [vertex_coords_x, vertex_coords_y]
            end_line = [point_move_x, point_move_y]
            index_vertex = index_vertex + 1

        # Cycle that makes polylines from points
        for lines_step in lines_list:
            lines_created.append(arcpy.Polyline(arcpy.Array([arcpy.Point(*sour) for sour in lines_step])))

        arcpy.FeatureToPolygon_management(lines_created, polygon)
        arcpy.AggregatePolygons_cartography(polygon, polygon_dissolve, 1)

        # Final editing
        arcpy.Erase_analysis(polygon_dissolve, objects, result_erase)
        arcpy.Append_management(result_erase, result, "NO_TEST")
        arcpy.Delete_management("in_memory")
        arcpy.Delete_management(vertexes)
        start_line = []

        # Clear selection, memory and deleting temps
        arcpy.SelectLayerByAttribute_management(objects, "CLEAR_SELECTION")
        print ("Object number: " + str(index - 1) + " -- done.")
        gc.collect()


    # Catch errors
    except Exception as e:
        pass
        print ("Error:")
        print (e)
        print ("\n")
        index += 1

Opção A:

1. Crie o buffer usando a ferramenta buffer
2. Selecione todos os recursos na classe de recurso Buffer
3. Use a ferramenta de deformação e designe alguns cantos importantes e execute a deformação

Opção B:

1. Crie o buffer usando a ferramenta buffer
2. Ative a edição e selecione todos os recursos na classe de recurso Buffer
3. Use a ferramenta 'Mover', preencha os itens X e Y na janela e salve a saída