আপনি যদি arcpyপাইথনে কিছুটা কাজ করতে পারেন তবে নির্দিষ্ট দিক থেকে এই অঞ্চলগুলি তৈরি করতে আপনি কিছু স্ক্রিপ্ট ব্যবহার করতে পারেন। আমি কয়েক সপ্তাহ আগে কিছু অনুরূপ করেছি, আমি আপনাকে সাহায্য করার জন্য আমার স্ক্রিপ্টের কিছু অংশ পোস্ট করব।
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
আমি আশা করি আপনি এটি ভালভাবে পড়তে পারেন, আমাকে মন্তব্য এবং ভেরিয়েবলগুলি অনুবাদ করতে হয়েছিল।
