def calculate_polygon_velocity(polygons_shp, los_file):
"""
Args:
polygons_shp:
dem_file:
Returns:
"""
if io_function.is_file_exist(polygons_shp) is False:
return False
operation_obj = shape_opeation()
# all_touched: bool, optional
# Whether to include every raster cell touched by a geometry, or only
# those having a center point within the polygon.
# defaults to `False`
# Since the dem usually is coarser, so we set all_touched = True
all_touched = True
# #DEM
if io_function.is_file_exist(los_file):
stats_list = ['mean', 'std'] # ['min', 'max', 'mean', 'count','median','std']
if operation_obj.add_fields_from_raster(polygons_shp, los_file, "los", band=1, stats_list=stats_list,
all_touched=all_touched) is False:
return False
else:
basic.outputlogMessage("warning, LOS file not exist, skip the calculation of LOS information")
return True
def save_false_positve_and_false_negative(result_shp, val_shp, para_file):
"""
save false positive and false negative polygons in the mapped polygon based on IOU values
:param result_shp: result shape file containing mapped polygons
:param val_shp: shape file containing validation polygons
:return:
"""
assert io_function.is_file_exist(result_shp)
assert io_function.is_file_exist(val_shp)
basic.outputlogMessage('Input mapping result: %s' % result_shp)
basic.outputlogMessage('Input ground truth: %s' % val_shp)
IOU_threshold = parameters.get_IOU_threshold(parafile=para_file)
basic.outputlogMessage('IOU threshold is: %f' % IOU_threshold)
# calcuate IOU
IOU_mapped_polygons = vector_features.calculate_IoU_scores(
result_shp, val_shp)
save_FP_path = io_function.get_name_by_adding_tail(result_shp, 'FP')
# set False, remove greater than the threshold one
remove_polygons_based_values(result_shp, IOU_mapped_polygons,
IOU_threshold, False, save_FP_path)
basic.outputlogMessage('save false positives to %s' % save_FP_path)
# calculate IOU
IOU_groud_truth = vector_features.calculate_IoU_scores(val_shp, result_shp)
save_FN_path = io_function.get_name_by_adding_tail(result_shp, 'FN')
# set False, remove greater than the threshold one
remove_polygons_based_values(val_shp, IOU_groud_truth, IOU_threshold,
False, save_FN_path)
basic.outputlogMessage('save false negatives to %s' % save_FN_path)
def main(options, args):
dem_diff_path = args[0]
io_function.is_file_exist(dem_diff_path)
save_dir = options.save_dir
process_num = options.process_num
# segment_subsidence_on_dem_diff(dem_diff_path,save_dir)
b_rm_tmp_files = options.b_remove_tmp_files
dem_diff_grey_8bit = options.dem_diff_8bit
if dem_diff_grey_8bit is None:
dem_diff_grey_8bit = get_dem_diff_8bit(dem_diff_path)
if save_dir is None:
save_dir = get_save_dir(dem_diff_path)
ele_diff_thr = options.ele_diff_thr
min_area = options.min_area
max_area = options.max_area
segment_subsidence_grey_image(dem_diff_grey_8bit, dem_diff_path, save_dir, process_num, subsidence_thr_m=ele_diff_thr,
min_area=min_area, max_area=max_area,b_rm_files=b_rm_tmp_files)
# the resut is a litte worse
# segment_subsidence_grey_image_v2(dem_diff_grey_8bit, dem_diff_path, save_dir, process_num, subsidence_thr_m=ele_diff_thr,
# min_area=min_area, max_area=max_area)
pass
def main(options, args):
shp_path = args[0]
io_function.is_file_exist(shp_path)
ref_raster = options.reference_raster
# nodata = options.nodata
out_dir = options.out_dir
attribute_name = options.attribute
burn_value = options.burn_value
b_burn_edge = options.burn_edge_255
file_name = os.path.splitext(os.path.basename(shp_path))[0]
save_path = os.path.join(out_dir, file_name + '_label.tif')
if os.path.isfile(save_path):
print('Warning, %s already exists' % save_path)
return True
if ref_raster is not None:
rasterize_polygons_to_ref_raster(ref_raster,
shp_path,
burn_value,
attribute_name,
save_path,
ignore_edge=b_burn_edge)
else:
xres = options.pixel_size_x
yres = options.pixel_size_y
rasterize_polygons(shp_path, burn_value, attribute_name, xres, yres,
save_path)
def add_fields_from_raster(self,
ori_shp,
raster_file,
field_name,
band=1,
stats_list=None,
all_touched=False):
"""
get field value from raster file by using "rasterstats"
"""
if io_function.is_file_exist(
ori_shp) is False or io_function.is_file_exist(
raster_file) is False:
return False
# stats_list = ['min', 'max', 'mean', 'count','median','std']
if stats_list is None:
stats_list = ['mean', 'std']
# band = 1
stats = zonal_stats(ori_shp,
raster_file,
band=band,
stats=stats_list,
all_touched=all_touched)
#test
# for tp in stats:
# print("mean:",tp["mean"],"std:",tp["std"])
if self.add_fields_to_shapefile(ori_shp, stats, field_name) is False:
basic.outputlogMessage('add fields to shape file failed')
return True
def main(options, args):
t_polygons_shp = args[0]
image_folder = args[1] # folder for store image tile (many split block of a big image)
b_label_image = options.no_label_image
process_num = options.process_num
# check training polygons
assert io_function.is_file_exist(t_polygons_shp)
t_polygons_shp_all = options.all_training_polygons
if t_polygons_shp_all is None:
basic.outputlogMessage('Warning, the full set of training polygons is not assigned, '
'it will consider the one in input argument is the full set of training polygons')
t_polygons_shp_all = t_polygons_shp
else:
if get_projection_proj4(t_polygons_shp) != get_projection_proj4(t_polygons_shp_all):
raise ValueError('error, projection insistence between %s and %s'%(t_polygons_shp, t_polygons_shp_all))
assert io_function.is_file_exist(t_polygons_shp_all)
# get image tile list
# image_tile_list = io_function.get_file_list_by_ext(options.image_ext, image_folder, bsub_folder=False)
image_tile_list = io_function.get_file_list_by_pattern(image_folder,options.image_ext)
if len(image_tile_list) < 1:
raise IOError('error, failed to get image tiles in folder %s'%image_folder)
check_projection_rasters(image_tile_list) # it will raise errors if found problems
# comment out on June 18, 2021,
# check_1or3band_8bit(image_tile_list) # it will raise errors if found problems
#need to check: the shape file and raster should have the same projection.
if get_projection_proj4(t_polygons_shp) != get_projection_proj4(image_tile_list[0]):
raise ValueError('error, the input raster (e.g., %s) and vector (%s) files don\'t have the same projection'%(image_tile_list[0],t_polygons_shp))
# check these are EPSG:4326 projection
if get_projection_proj4(t_polygons_shp).strip() == '+proj=longlat +datum=WGS84 +no_defs':
bufferSize = meters_to_degress_onEarth(options.bufferSize)
else:
bufferSize = options.bufferSize
saved_dir = options.out_dir
# if os.system('mkdir -p ' + os.path.join(saved_dir,'subImages')) != 0:
# sys.exit(1)
# if os.system('mkdir -p ' + os.path.join(saved_dir,'subLabels')) !=0:
# sys.exit(1)
io_function.mkdir(os.path.join(saved_dir,'subImages'))
if b_label_image:
io_function.mkdir(os.path.join(saved_dir,'subLabels'))
dstnodata = options.dstnodata
if 'qtb_sentinel2' in image_tile_list[0]:
# for qtb_sentinel-2 mosaic
pre_name = '_'.join(os.path.splitext(os.path.basename(image_tile_list[0]))[0].split('_')[:4])
else:
pre_name = os.path.splitext(os.path.basename(image_tile_list[0]))[0]
get_sub_images_and_labels(t_polygons_shp, t_polygons_shp_all, bufferSize, image_tile_list,
saved_dir, pre_name, dstnodata, brectangle=options.rectangle, b_label=b_label_image,
proc_num=process_num)
def main(options, args):
img_path = args[0]
io_function.is_file_exist(img_path)
save_dir = options.save_dir
segment_changes_on_dem_diff(img_path, save_dir)
pass
def main(options, args):
input_shp = args[0]
io_function.is_file_exist(input_shp)
min_area = options.min_area
max_area = options.max_area
refine_dem_reduction_polygons(input_shp, min_area, max_area)
def get_ext_shps():
# make sure in different machine, the extent file are in the same order, we create a list: ArcticDEM_subsets_list.txt
shps_list_txt = os.path.join(ext_shp_dir, 'ArcticDEM_subsets_list.txt')
shps_list = io_function.read_list_from_txt(shps_list_txt)
ext_shps = [os.path.join(ext_shp_dir, item) for item in shps_list]
# check existence
for ext in ext_shps:
io_function.is_file_exist(ext)
return ext_shps
def get_sub_images_pixel_json_files(polygons_shp, image_folder_or_path,
image_pattern, class_names, bufferSize,
dstnodata, saved_dir, b_rectangle,
process_num):
# check training polygons
assert io_function.is_file_exist(polygons_shp)
# get image tile list
# image_tile_list = io_function.get_file_list_by_ext(options.image_ext, image_folder, bsub_folder=False)
if os.path.isdir(image_folder_or_path):
image_tile_list = io_function.get_file_list_by_pattern(
image_folder_or_path, image_pattern)
else:
assert io_function.is_file_exist(image_folder_or_path)
image_tile_list = [image_folder_or_path]
if len(image_tile_list) < 1:
raise IOError('error, failed to get image tiles in folder %s' %
image_folder_or_path)
get_subImages.check_projection_rasters(
image_tile_list) # it will raise errors if found problems
get_subImages.check_1or3band_8bit(
image_tile_list) # it will raise errors if found problems
# need to check: the shape file and raster should have the same projection.
if get_subImages.get_projection_proj4(
polygons_shp) != get_subImages.get_projection_proj4(
image_tile_list[0]):
raise ValueError(
'error, the input raster (e.g., %s) and vector (%s) files don\'t have the same projection'
% (image_tile_list[0], polygons_shp))
# check these are EPSG:4326 projection
if get_subImages.get_projection_proj4(
polygons_shp).strip() == '+proj=longlat +datum=WGS84 +no_defs':
bufferSize = get_subImages.meters_to_degress_onEarth(bufferSize)
pre_name = os.path.splitext(os.path.basename(image_tile_list[0]))[0]
saved_dir = os.path.join(saved_dir, pre_name + '_subImages')
if os.path.isdir(saved_dir) is False:
io_function.mkdir(saved_dir)
get_sub_images_and_json_files(polygons_shp,
class_names,
bufferSize,
image_tile_list,
saved_dir,
pre_name,
dstnodata,
brectangle=b_rectangle,
proc_num=process_num)
def create_new_region_defined_parafile(template_para_file,
img_dir,
area_remark=None):
'''
create a new region defined para file. Only defined the new images (did not change others)
:param template_para_file:
:param img_dir:
:param area_remark:
:return:
'''
io_function.is_file_exist(template_para_file)
dir_base = os.path.basename(img_dir)
date_strs = re.findall('\d{8}', dir_base)
if len(date_strs) == 1:
date = date_strs[0]
else:
date = 'unknown'
new_para_file = io_function.get_name_by_adding_tail(
template_para_file, date + '_' + area_remark)
new_para_file = os.path.basename(new_para_file) # save to current folder
if os.path.isfile(new_para_file):
raise IOError('%s already exists, please check or remove first' %
new_para_file)
# copy the file
io_function.copy_file_to_dst(template_para_file, new_para_file)
if area_remark is not None:
modify_parameter(new_para_file, 'area_remark', area_remark)
if date != 'unknown':
modify_parameter(new_para_file, 'area_time', date)
modify_parameter(new_para_file, 'input_image_dir', img_dir)
modify_parameter(new_para_file, 'inf_image_dir', img_dir)
tif_list = io_function.get_file_list_by_ext('.tif',
img_dir,
bsub_folder=False)
if len(tif_list) < 1:
raise ValueError('No tif in %s' % img_dir)
if len(tif_list) == 1:
modify_parameter(new_para_file, 'input_image_or_pattern',
os.path.basename(tif_list[0]))
modify_parameter(new_para_file, 'inf_image_or_pattern',
os.path.basename(tif_list[0]))
else:
modify_parameter(new_para_file, 'input_image_or_pattern', '*.tif')
modify_parameter(new_para_file, 'inf_image_or_pattern', '*.tif')
print("modified and saved new parameter file: %s " % new_para_file)
return new_para_file
def add_raster_info_from_bufferArea(polygons_shp, raster_file, raster_name,
b_buffer_size):
"""
calculate the raster information such elevation, then add toeach polygon
Args:
polygons_shp: input shapfe file
raster_file: raster file, should have the same projection of shapefile
raster_name: the name of raster, should less than four letters, will be used as part of the attribute name
b_buffer_size: the size of buffer area in meters
Returns: True if successful, False Otherwise
"""
if io_function.is_file_exist(polygons_shp) is False:
return False
if io_function.is_file_exist(raster_file) is False:
return False
operation_obj = shape_opeation()
## calculate the topography information from the buffer area
basic.outputlogMessage(
"info: calculate the raster information from the buffer area")
buffer_polygon_shp = io_function.get_name_by_adding_tail(
polygons_shp, 'buffer')
# if os.path.isfile(buffer_polygon_shp) is False:
if vector_features.get_buffer_polygons(polygons_shp, buffer_polygon_shp,
b_buffer_size) is False:
raise IOError("error, failed in producing the buffer_polygon_shp")
# replace the polygon shape file
polygons_shp_backup = polygons_shp
polygons_shp = buffer_polygon_shp
# all_touched: bool, optional
# Whether to include every raster cell touched by a geometry, or only
# those having a center point within the polygon.
# defaults to `False`
# Since the dem usually is coarser, so we set all_touched = True
all_touched = True
stats_list = ['min', 'max', 'mean',
'std'] #['min', 'max', 'mean', 'count','median','std']
if operation_obj.add_fields_from_raster(polygons_shp,
raster_file,
raster_name,
band=1,
stats_list=stats_list,
all_touched=all_touched) is False:
return False
# copy the information to the original shape file
operation_obj.add_fields_shape(polygons_shp_backup, buffer_polygon_shp,
polygons_shp_backup)
return True
def main(options, args):
img_path = args[0]
io_function.is_file_exist(img_path)
save_dir = options.save_dir
process_num = options.process_num
org_elevation_diff = options.elevation_diff
segment_a_grey_image(img_path,
save_dir,
process_num,
org_raster=org_elevation_diff)
def get_tile_min_overlap(raster_file_or_files):
if isinstance(raster_file_or_files,str):
io_function.is_file_exist(raster_file_or_files)
image_tiles = [raster_file_or_files]
elif isinstance(raster_file_or_files,list):
image_tiles = raster_file_or_files
else:
raise ValueError('unsupport type for %s'%str(raster_file_or_files))
xres, yres = raster_io.get_xres_yres_file(image_tiles[0])
tile_min_overlap = abs(xres * yres)
return tile_min_overlap
def read_training_pixels_inside_polygons(self, img_path, shp_path):
'''
read pixels on a image in the extent of polygons
:param img_path: the path of an image
:param shp_path: the path of shape file
:return:
'''
if io_function.is_file_exist(
img_path) is False or io_function.is_file_exist(
shp_path) is False:
return False
no_data = 255 # consider changing to other values
touch = False # we only read the pixels inside the polygons, so set all_touched as False
sub_images, class_labels = build_RS_data.read_pixels_inside_polygons(
img_path, shp_path, mask_no_data=no_data, touch=touch)
# read them one by one
Xs, ys = [], []
for idx, (img_data, label) in enumerate(zip(sub_images, class_labels)):
# img: 3d array (nband, height, width)
# label: int values
# print(img_data)
# print(label)
X_arr = img_data.reshape(img_data.shape[0], -1)
# remove non-data pixels
valid_pixles = np.any(X_arr != no_data, axis=0)
X_arr = X_arr[:, valid_pixles]
valid_pixel_count = int(X_arr.size / img_data.shape[0])
# print('pixel count',valid_pixel_count)
if valid_pixel_count < 1:
basic.outputlogMessage(
'Warning, No valid pixel in %d th polygon due to its small size'
% valid_pixel_count)
continue
y_arr = np.ones(X_arr.shape[1]) * label
Xs.append(X_arr)
ys.append(y_arr)
X_pixels = np.concatenate(Xs, axis=1)
y_pixels = np.concatenate(ys, axis=0)
X_pixels = np.transpose(X_pixels, (1, 0))
basic.outputlogMessage(str(X_pixels.shape))
basic.outputlogMessage(str(y_pixels.shape))
return X_pixels, y_pixels
def read_training_pixels(image_path, label_path):
"""
read training pixels from image and the corresponding label
:param image_path:
:param label_path:
:return: X,y array or False
"""
if io_function.is_file_exist(
image_path) is False or io_function.is_file_exist(
label_path) is False:
return False
# check: they are from the same polygons
polygon_index_img = os.path.basename(image_path).split('_')[-3]
polygon_index_label = os.path.basename(label_path).split('_')[-3]
if polygon_index_img != polygon_index_label:
raise ValueError("%s and %s are not from the same training polygons" %
(image_path, label_path))
with rasterio.open(image_path) as img_obj:
# read the all bands
indexes = img_obj.indexes
nbands = len(indexes)
img_data = img_obj.read(indexes)
with rasterio.open(label_path) as img_obj:
# read the all bands (only have one band)
indexes = img_obj.indexes
if len(indexes) != 1:
raise ValueError('error, the label should only have one band')
label_data = img_obj.read(indexes)
# check the size
# print(img_data.shape)
# print(label_data.shape)
if img_data.shape[1] != label_data.shape[1] or img_data.shape[
2] != label_data.shape[2]:
raise ValueError('the image and label have different size')
X_arr = img_data.reshape(nbands, -1)
y_arr = label_data.reshape(-1)
basic.outputlogMessage(str(X_arr.shape))
basic.outputlogMessage(str(y_arr.shape))
# sys.exit(1)
return X_arr, y_arr
def calculate_center_latlon(input_vector, save_path, b_save2shp=False):
io_function.is_file_exist(input_vector)
epsg_info = map_projection.get_raster_or_vector_srs_info(
input_vector, 'epsg')
epsg_int = int(epsg_info.split(':')[1])
polygons = vector_gpd.read_polygons_gpd(input_vector,
b_fix_invalid_polygon=False)
poly_center = [vector_gpd.get_polygon_centroid(item) for item in polygons]
# to list for the input
x = [item.x for item in poly_center]
y = [item.y for item in poly_center]
# in-place change in x, and y
# print(x[0],y[0])
# print(os.getenv('PATH'))
if map_projection.convert_points_coordinate_epsg(x, y, epsg_int,
4326): # to 'EPSG:4326'
# print(x[0], y[0])
pass
else:
raise ValueError('error in convert coordinates')
# save to file
save_lines = ['%s,%s\n' % (str(xx), str(yy)) for xx, yy in zip(x, y)]
with open(save_path, 'w') as f_obj:
f_obj.writelines(save_lines)
basic.outputlogMessage(
'saved latitude and longitude of polygons to %s' % save_path)
ext_save_path = io_function.get_name_by_adding_tail(save_path, 'ext')
delta = map_projection.meters_to_degrees_onEarth(
1500) #calculate distance in degree
with open(ext_save_path, 'w') as f_obj:
for xx, yy in zip(x, y):
left_x = xx - delta
right_x = xx + delta
up_yy = yy + delta
down_yy = yy - delta
f_obj.writelines('%f,%f,%f,%f\n' %
(left_x, down_yy, right_x, up_yy))
# write the value to shapefile
attributes = {'centerLat': x, 'centerLon': y}
if b_save2shp:
vector_gpd.add_attributes_to_shp(input_vector, attributes)
basic.outputlogMessage('saved polygons latitude and longitude to %s' %
input_vector)
def add_raster_info_insidePolygons(polygons_shp, raster_file, raster_name):
"""
calculate the hydrology information of each polygons
Args:
polygons_shp: input shapfe file
flow_accumulation: the file path of flow accumulation
Returns: True if successful, False Otherwise
"""
if io_function.is_file_exist(polygons_shp) is False:
return False
operation_obj = shape_opeation()
# all_touched: bool, optional
# Whether to include every raster cell touched by a geometry, or only
# those having a center point within the polygon.
# defaults to `False`
# Since the dem usually is coarser, so we set all_touched = True
all_touched = True
# #DEM
stats_list = ['min', 'max', 'mean', 'median',
'std'] # ['min', 'max', 'mean', 'count','median','std']
if operation_obj.add_fields_from_raster(polygons_shp,
raster_file,
raster_name,
band=1,
stats_list=stats_list,
all_touched=all_touched) is False:
return False
return True
def get_polygon_shape_info(self, input_shp, out_box, bupdate=False):
"""
get Oriented minimum bounding box for a polygon shapefile,
and update the shape information based on oriented minimum bounding box to
the input shape file
:param input_shp: input polygon shape file
:param out_box: output Oriented minimum bounding box shape file
:param bupdate: indicate whether update the original input shapefile
:return:True is successful, False Otherwise
"""
if io_function.is_file_exist(input_shp) is False:
return False
if self.__qgis_app is None:
try:
self.initQGIS()
except:
basic.outputlogMessage("initial QGIS error")
self.__qgis_app = None
return False
processing.runalg("qgis:orientedminimumboundingbox", input_shp, True,
out_box)
if os.path.isfile(out_box) is False:
basic.outputlogMessage(
"error: result file not exist, getting orientedminimumboundingbox failed"
)
return False
#update shape info to input shape file
if bupdate is True:
pass
def main(options, args):
shape_file = args[0]
if io_function.is_file_exist(shape_file) is False:
return False
# get ground truth polygons
val_path = parameters.get_validation_shape() # ground truth
input_shp = shape_file
groud_truth_shp = val_path
basic.outputlogMessage('result shape: %s' % input_shp)
basic.outputlogMessage('ground truth shape: %s' % groud_truth_shp)
# calculate the IoU of each predicted polygons
iou_pre = np.array(get_iou_scores(input_shp, groud_truth_shp))
# calculate the IoU of each ground truth, for false negative
iou_GT = np.array(get_iou_scores(groud_truth_shp, input_shp))
iou_thr = options.iou_threshold
basic.outputlogMessage('iou_threshold: %f' % iou_thr)
precision, recall, f1score = calculate_precision_recall_iou(
iou_pre, iou_GT, iou_thr)
basic.outputlogMessage("precision, recall, f1score: %f,%f,%f" %
(precision, recall, f1score))
def main(options, args):
input_shp = args[0]
# manual section, could a files in a folder or ids in a table
manual_sel = args[1]
io_function.is_file_exist(input_shp)
save_path = options.save_path
if save_path is None:
save_path = io_function.get_name_by_adding_tail(input_shp,'manuSelect')
if manual_sel.endswith('.xlsx'):
select_polygons_by_ids_in_excel(input_shp,manual_sel,save_path)
elif os.path.isdir(manual_sel):
select_polygons_by_ids_in_filenames(input_shp,manual_sel,save_path)
else:
print('unknown input of manual selection')
def get_hisogram_of_oneband_raster(image_path):
if io_function.is_file_exist(image_path) is False:
return False
CommandString = 'gdalinfo -json -hist -mm ' + image_path
imginfo = basic.exec_command_string_output_string(CommandString)
if imginfo is False:
return False
imginfo_obj = json.loads(imginfo)
try:
bands_info = imginfo_obj['bands']
band_info = bands_info[0] # only care band one (suppose only have one band)
histogram_info = band_info["histogram"]
hist_count = histogram_info["count"]
hist_min = histogram_info["min"]
hist_max = histogram_info["max"]
hist_buckets = histogram_info["buckets"]
return (hist_count,hist_min,hist_max,hist_buckets)
except KeyError:
basic.outputlogMessage(str(KeyError))
pass
return (False, False,False,False)
pass
def has_field(self, input_shp, field_name):
"""
inquires whether the shape file contains the specific field given by the field name
:param input_shp: shape file path
:param field_name: the name of the specific field
:return: True if exist, False otherwise
"""
if io_function.is_file_exist(input_shp) is False:
return False
try:
org_obj = shapefile.Reader(input_shp)
except IOError:
basic.outputlogMessage(str(IOError))
return False
all_fields = org_obj.fields
field_len = len(all_fields)
for t_index in range(0, field_len):
t_field = all_fields[t_index]
if isinstance(t_field, tuple):
# t_index += 1 occur once
continue
if field_name == t_field[0]:
return True #find the specific field of the given name
return False
def remove_nonclass_polygon(self, shape_file, out_shp, class_field_name):
"""
remove polygons that are not belong to targeted class, it means the value of class_field_name is 0
:param shape_file: input shapefile containing all the polygons
:param out_shp: output shapefile
:param class_field_name: the name of class field, such as svmclass, treeclass
:return: True if successful, False Otherwise
"""
if io_function.is_file_exist(shape_file) is False:
return False
try:
org_obj = shapefile.Reader(shape_file)
except:
basic.outputlogMessage(str(IOError))
return False
# Create a new shapefile in memory
w = shapefile.Writer()
w.shapeType = org_obj.shapeType
org_records = org_obj.records()
if (len(org_records) < 1):
basic.outputlogMessage('error, no record in shape file ')
return False
# Copy over the geometry without any changes
w.fields = list(org_obj.fields)
field_index = self.__find_field_index(w.fields, class_field_name)
if field_index is False:
return False
shapes_list = org_obj.shapes()
org_shape_count = len(shapes_list)
i = 0
removed_count = 0
for i in range(0, len(shapes_list)):
rec = org_records[i]
if rec[field_index] == 0: # remove the record which class is 0, 0 means non-gully
removed_count = removed_count + 1
continue
w._shapes.append(shapes_list[i])
rec = org_records[i]
w.records.append(rec)
basic.outputlogMessage('Remove non-class polygon, total count: %d' %
removed_count)
# w._shapes.extend(org_obj.shapes())
if removed_count == org_shape_count:
basic.outputlogMessage('error: already remove all the polygons')
return False
# copy prj file
org_prj = os.path.splitext(shape_file)[0] + ".prj"
out_prj = os.path.splitext(out_shp)[0] + ".prj"
io_function.copy_file_to_dst(org_prj, out_prj, overwrite=True)
w.save(out_shp)
return True
def polygons2geojson(input_shp, save_folder):
'''
convert polygons in shapefiles to many geojson (each for one polygon)
:param input_shp:
:param save_folder:
:return:
'''
io_function.is_file_exist(input_shp)
if os.path.isdir(save_folder) is False:
io_function.mkdir(save_folder)
polygons, ids = vector_gpd.read_polygons_attributes_list(input_shp, 'id')
prj_info = map_projection.get_raster_or_vector_srs_info_epsg(
input_shp) # geojson need EPSG, such as "EPSG:3413"
# print(prj_info)
for poly, id in zip(polygons, ids):
save_one_polygon_2geojson(poly, id, prj_info, save_folder)
def convert_gcp_format(ref_image,warp_image,dem_file,pts_files,output=None):
'''
convert the ground control points to ASP format
:param ref_image: the reference image on which selected ground control points
:param warp_image: the input image need to co-registration or orthorectification
:param dem_file: the dem file
:param pts_files: ground control points by using ImageMatchsiftGPU (Envi format)
:return: the path of new ground control points if successful, otherwise, None
'''
# check file
assert io_function.is_file_exist(ref_image)
assert io_function.is_file_exist(warp_image)
assert io_function.is_file_exist(pts_files)
assert io_function.is_file_exist(dem_file)
# read pts file
# tie_points (x1,y1,x2,y2): (x1,y1) and (x2,y2) are column and row on the base and warp image
base_file, warp_file, tie_points = read_envi_pts(pts_files)
# check the ref and wrap image
if base_file not in ref_image:
raise ValueError('error, the reference image: %s in the pts file is not the same as the input:%s'
% (base_file,ref_image))
if warp_file not in warp_image:
raise ValueError('error, the warp image: %s in the pts file is not the same as the input:%s'
% (warp_file, warp_image))
# get latitude, longitude from base image
lon_lat_list = [map_projection.convert_pixel_xy_to_lat_lon(x1,y1,ref_image) for [x1,y1,_,_] in tie_points]
print(lon_lat_list)
# get elevation
# the DEM (SRTM) already convert from geoid (EGM96) based to ellipsoid (WGS 84) based
ele_list = [RSImage.get_image_location_value(dem_file,lon,lat,'lon_lat_wgs84',1)
for (lon,lat) in lon_lat_list ]
# save to file
x2_list = [x2 for [_,_,x2,_] in tie_points]
y2_list = [y2 for [_, _, _, y2] in tie_points]
with open(output,'w') as fw:
for idx, ((lon,lat),ele,x2,y2) in enumerate(zip(lon_lat_list,ele_list,x2_list, y2_list)):
fw.writelines('%d %.6lf %.6lf %.6lf %.2lf %.2lf %.2lf %s %.2lf %.2lf %.2lf %.2lf \n'%
(idx, lat, lon, ele, 1.0,1.0, 1.0, warp_image, x2, y2, 1.0, 1.0))
def segment_subsidence_grey_image_v2(dem_diff_grey_8bit, dem_diff, save_dir,process_num, subsidence_thr_m=-0.5, min_area=40, max_area=100000000):
'''
segment subsidence areas based on 8bit dem difference
:param dem_diff_grey_8bit:
:param dem_diff:
:param save_dir:
:param process_num:
:param subsidence_thr_m: mean value less than this one consider as subsidence (in meter)
:param min_area: min size in m^2 (defualt is 40 m^2, 10 pixels on ArcticDEM)
:param max_area: min size in m^2 (default is 10km by 10 km)
:return:
'''
io_function.is_file_exist(dem_diff_grey_8bit)
out_pre = os.path.splitext(os.path.basename(dem_diff_grey_8bit))[0]
segment_shp_path = os.path.join(save_dir, out_pre + '.shp')
# get initial polygons
# because the label from segmentation for superpixels are not unique, so we may need to get mean dem diff based on polygons, set org_raster=None
label_path_list = segment_a_grey_image(dem_diff_grey_8bit,save_dir,process_num, org_raster=None,b_save_patch_label=True)
patch_shp_list = polygonize_label_images(label_path_list, org_raster=dem_diff, stats=['mean', 'std', 'count'], prefix='demD',
process_num=process_num, b_remove_nodata=True)
# post-processing for each patch shp
post_patch_shp_list = []
for idx, shp in enumerate(patch_shp_list):
# get DEM diff information for each polygon.
post_shp = get_dem_subscidence_polygons(shp, dem_diff, dem_diff_thread_m=subsidence_thr_m,
min_area=min_area, max_area=max_area, process_num=1)
if post_shp is not None:
post_patch_shp_list.append(post_shp)
# merge shapefile
if os.path.isdir(save_dir) is False:
io_function.mkdir(save_dir)
vector_gpd.merge_shape_files(post_patch_shp_list,segment_shp_path)
# post-processing again
dem_diff_shp = get_dem_subscidence_polygons(segment_shp_path, dem_diff, dem_diff_thread_m=subsidence_thr_m,
min_area=min_area, max_area=max_area, process_num=1)
basic.outputlogMessage('obtain elevation reduction polygons: %s'%dem_diff_shp)
return True
def add_polygon_attributes(input, output, para_file, data_para_file):
if io_function.is_file_exist(input) is False:
return False
# copy output
if io_function.copy_shape_file(input, output) is False:
raise IOError('copy shape file %s failed' % input)
# remove narrow parts of mapped polygons
polygon_narrow_part_thr = parameters.get_digit_parameters_None_if_absence(
para_file, 'mapped_polygon_narrow_threshold', 'float')
# if it is not None, then it will try to remove narrow parts of polygons
if polygon_narrow_part_thr is not None and polygon_narrow_part_thr > 0:
# use the buffer operation to remove narrow parts of polygons
basic.outputlogMessage(
"start removing narrow parts (thr %.2f) in polygons" %
(polygon_narrow_part_thr * 2))
if vector_gpd.remove_narrow_parts_of_polygons_shp_NOmultiPolygon(
input, output, polygon_narrow_part_thr):
message = "Finished removing narrow parts (thr %.2f) in polygons and save to %s" % (
polygon_narrow_part_thr * 2, output)
basic.outputlogMessage(message)
else:
pass
else:
basic.outputlogMessage(
"warning, mapped_polygon_narrow_threshold is not in the parameter file, skip removing narrow parts"
)
# calculate area, perimeter of polygons
if cal_add_area_length_of_polygon(output) is False:
return False
# calculate the polygon information
b_calculate_shape_info = parameters.get_bool_parameters_None_if_absence(
para_file, 'b_calculate_shape_info')
if b_calculate_shape_info:
# remove "_shapeInfo.shp" to make it calculate shape information again
os.system('rm *_shapeInfo.shp')
if calculate_gully_information(output) is False:
return False
# add topography of each polygons
dem_files, slope_files, aspect_files, dem_diff_files = get_topographic_files(
data_para_file)
if calculate_polygon_topography(output,
para_file,
dem_files,
slope_files,
aspect_files=aspect_files,
dem_diffs=dem_diff_files) is False:
basic.outputlogMessage(
'Warning: calculate information of topography failed')
# return False # don't return
return True
def main(options, args):
img_path = args[0]
save_path = args[1]
io_function.is_file_exist(img_path)
if os.path.isfile(save_path):
print('%s exists, remove it if want to re-generate it' % save_path)
return
img_np_allbands, src_nodata = raster_io.read_raster_all_bands_np(img_path)
if options.src_nodata is not None:
src_nodata = options.src_nodata
scales = options.scale
if scales is not None:
print('input scale (src_min src_max dst_min dst_max): ' + str(scales))
img_array_8bit = raster_io.image_numpy_allBands_to_8bit(
img_np_allbands,
scales,
src_nodata=src_nodata,
dst_nodata=options.dst_nodata)
else:
min_percent = options.hist_min_percent
max_percent = options.hist_max_percent
min_max_value = options.min_max_value
img_array_8bit = raster_io.image_numpy_allBands_to_8bit_hist(
img_np_allbands,
min_max_value,
per_min=min_percent,
per_max=max_percent,
src_nodata=src_nodata,
dst_nodata=options.dst_nodata)
# save to file
if options.dst_nodata is None:
nodata = src_nodata
else:
nodata = options.dst_nodata
return raster_io.save_numpy_array_to_rasterfile(img_array_8bit,
save_path,
img_path,
nodata=nodata,
compress='lzw',
tiled='yes',
bigtiff='if_safer')
def main(options, args):
shape_file = args[0]
if io_function.is_file_exist(shape_file) is False:
return False
# draw_image_histogram_oneband("/Users/huanglingcao/Data/eboling/DEM/20160728-Large-DSM-NaN_slope.tif","slope_hist.jpg")
# draw_image_histogram_oneband("/Users/huanglingcao/Data/eboling/DEM/20160728-Large-DSM-NaN.tif","dem_hist.jpg")
# draw_dem_slope_hist("/Users/huanglingcao/Data/eboling/DEM/20160728-Large-DSM-NaN.tif",
# "/Users/huanglingcao/Data/eboling/DEM/20160728-Large-DSM-NaN_slope.tif",
# "dem_slope_histogram.jpg")
# draw_two_attribute_scatter(shape_file, "INarea", "IoU", "IoU_InArea_scatter.jpg",color='k')
# draw_one_attribute_histogram(shape_file, "IoU", "IoU (0-1)", "IoU.jpg") # ,hatch='-'
draw_one_attribute_histogram(shape_file, "INarea", "Area ($m^2$)", "area.jpg") #,hatch='-'
# draw_one_attribute_histogram(shape_file, "INperimete", "Perimeter (m)", "Perimeter.jpg") #,hatch='\\'
# draw_one_attribute_histogram(shape_file, "ratio_w_h", "ratio of HEIGHT over WIDTH (W>H)", "ratio_w_h.jpg")
# draw_one_attribute_histogram(shape_file, "ratio_p_a", "ratio of $perimeter^2$ over area", "ratio_p_a.jpg")
# draw_one_attribute_histogram(shape_file, "circularit", "Circularity", "Circularity.jpg") # ,hatch='.'
# #
# # # topography
# draw_one_attribute_histogram(shape_file, "dem_std", "standard variance of DEM", "dem_std.jpg")
# draw_one_attribute_histogram(shape_file, "dem_max", "maximum value of DEM (meter)", "dem_max.jpg")
draw_one_attribute_histogram(shape_file, "dem_mean", "Mean Elevation (m)", "dem_mean.jpg") # ,hatch='x'
# draw_one_attribute_histogram(shape_file, "dem_min", "minimum value of DEM (meter)", "dem_min.jpg")
# #
# draw_one_attribute_histogram(shape_file, "slo_std", "standard variance of Slope", "slo_std.jpg")
# draw_one_attribute_histogram(shape_file, "slo_max", "maximum value of Slope ($^\circ$)", "slo_max.jpg")
# draw_one_attribute_histogram(shape_file, "slo_mean", "Mean Slope ($^\circ$)", "slo_mean.jpg") #,hatch='/'
# draw_one_attribute_histogram(shape_file, "slo_min", "minimum value of Slope ($^\circ$)", "slo_min.jpg")
#
# #hydrology
# draw_one_attribute_histogram(shape_file, "F_acc_std", "standard variance of Flow accumulation", "F_acc_std.jpg")
# draw_one_attribute_histogram(shape_file, "F_acc_max", "maximum value of Flow accumulation", "F_acc_max.jpg")
# draw_one_attribute_histogram(shape_file, "F_acc_mean", "mean value of Flow accumulation", "F_acc_mean.jpg")
# draw_one_attribute_histogram(shape_file, "F_acc_min", "minimum value of Flow accumulation", "F_acc_min.jpg")
#
# draw wind rose of aspect
# draw_one_attribute_windrose(shape_file, "asp_std", "standard variance of Aspect", "asp_std.jpg")
# draw_one_attribute_windrose(shape_file, "asp_max", "maximum value of Aspect ($^\circ$)", "asp_max.jpg")
# draw_one_attribute_windrose(shape_file, "asp_mean", "Mean Aspect ($^\circ$)", "asp_mean.jpg") #,hatch='/'
# draw_one_attribute_windrose(shape_file, "asp_min", "minimum value of Aspect ($^\circ$)", "asp_min.jpg")
# draw wind rose of azimuth from manually draw lines
# draw_one_attribute_windrose(shape_file, "aspectLine", "Mean Aspect ($^\circ$)", "aspectLine.jpg") # ,hatch='/'
os.system("mv processLog.txt bins.txt")
pass
