# coding=UTF-8 # This Python file uses the following encoding: utf-8 import arcpy # 设置工作空间和环境设置 arcpy.env.workspace = "D:/数据备份" # 设置工作空间路径 arcpy.env.overwriteOutput = True # 允许覆盖输出 # 定义线图层和点图层的名称 line_layer = r"D:\数据备份\线1.shp" # 替换为线图层的名称 point_layer = r"D:\数据备份\点.shp" # 替换为点图层的名称 # 创建一个用于存储要删除的节点的列表 nodes_to_delete = [] # 遍历线图层中的每个要素 with arcpy.da.UpdateCursor(line_layer, ["SHAPE@"]) as cursor: for row in cursor: line_geometry = row[0] # 获取线几何对象 # 检查线的起点和终点是否与点图层中的点重叠 start_point = line_geometry.firstPoint end_point = line_geometry.lastPoint start_point_overlaps = False end_point_overlaps = False with arcpy.da.SearchCursor(point_layer, ["SHAPE@"]) as point_cursor: for point_row in point_cursor: point_geometry = point_row[0] # 获取点几何对象 # 检查起点是否与点重叠 if start_point.within(point_geometry): start_point_overlaps = True break # 检查终点是否与点重叠 if end_point.within(point_geometry): end_point_overlaps = True break # 如果起点和终点都没有与点重叠,则将该要素的所有节点添加到要删除的列表中 if not start_point_overlaps and not end_point_overlaps: for i in range(1, line_geometry.pointCount - 1): nodes_to_delete.append(i) # 删除要删除的节点 with arcpy.da.UpdateCursor(line_layer, ["SHAPE@"]) as cursor: for row in cursor: line_geometry = row[0] # 获取线几何对象 # 创建一个新的 Polyline 对象 new_line_geometry = arcpy.Polyline() # 复制需要保留的节点到新的 Polyline 对象中 for i in range(line_geometry.pointCount): if i not in nodes_to_delete: new_line_geometry.addPoint(line_geometry.getPart(0).getObject(i)) # 更新要素 cursor.updateRow([new_line_geometry]) print("节点删除完成!")
时间: 2024-02-14 14:29:33 浏览: 129
这段代码看起来很好!它会遍历线图层中的每个要素,并检查起点和终点是否与点图层中的点重叠。然后,根据不重叠的条件,它将要删除的节点添加到列表中。最后,它使用新的 Polyline 对象来复制需要保留的节点,并更新线图层的要素。
请确保将工作空间路径和图层名称替换为实际的路径和名称,并确保路径使用正斜杠 (`/`) 或转义斜杠 (`\\`)。此外,还请确保 ArcGIS 环境已正确设置。
如果你有任何其他问题,或需要进一步的帮助,请随时告诉我。我很乐意帮助你!
相关问题
# coding=utf-8 import arcpy from arcpy import env rasterFolder=arcpy.GetParameterAsText(0) newRasterName=arcpy.GetParameterAsText(1) coordinateSystem=arcpy.GetParameterAsText(2) pixelType=arcpy.GetParameterAsText(3) cellSize=arcpy.GetParameterAsText(4) numberOfBands=arcpy.GetParameterAsText(5) mosaicMethod=arcpy.GetParameterAsText(6) mosaicColormapMode=arcpy.GetParameterAsText(7) env.workspace=rasterFolder rsts=arcpy.ListRasters() arcpy.MosaicToNewRaster_management( input_rasters=";".join(rsts), output_location=rasterFolder, raster_dataset_name_with_extension=newRasterName, coordinate_system_for_the_raster=coordinateSystem, pixel_type=pixelType, cellsize=cellSize, number_of_bands=3, mosaic_method=mosaicMethod, mosaic_colormap_mode=mosaicColormapMode )
这段代码是用于将一组栅格图像合并为一个新的栅格图像。具体解释如下:
1. 第一行表示这是一个使用utf-8编码的Python脚本。
2. 导入了arcpy模块,并从中导入env和其他函数。
3. 接下来的几行代码是通过arcpy.GetParameterAsText()函数获取用户在工具中输入的参数值,例如栅格图像文件夹路径、新栅格图像名称、坐标系、像素类型、像元大小、波段数、拼接方法和颜色映射模式等。
4. 将栅格图像文件夹路径设为工作空间。
5. 列出所有的栅格图像文件,并将它们存储在rsts变量中。
6. 调用arcpy.MosaicToNewRaster_management()函数,将rsts中的所有栅格图像合并为一个新的栅格图像,并将其保存在指定的输出位置,同时指定新栅格图像的名称、坐标系、像素类型、像元大小、波段数、拼接方法和颜色映射模式等参数。
总之,这段代码的作用是将一组栅格图像合并为一个新的栅格图像,并实现了一些自定义的配置选项。
-- coding: utf-8 -- import arcpy import os import sys reload(sys) sys.setdefaultencoding('utf-8') def check_feature_class_fields(workspace, output_file): def write_warning_to_file(warning_message): with open(output_file, 'a') as f: f.write(warning_message + '\n') arcpy.env.workspace = workspace feature_classes = arcpy.ListFeatureClasses() unqualified_count = 0 field_count = {} for feature_class in feature_classes: feature_class_path = os.path.join(workspace, feature_class) fields = arcpy.ListFields(feature_class_path) field_names = [field.name for field in fields] with arcpy.da.SearchCursor(feature_class_path, ["OID@"] + field_names) as cursor: for row in cursor: oid = row[0] for i, value in enumerate(row[1:], start=1): if value is None or value == "": field_name = field_names[i - 1] warning_message = "Unqualified Feature Class: {} | Field Name: {} | Feature OID: {}".format( feature_class, field_name, oid ) arcpy.AddWarning(warning_message) write_warning_to_file(warning_message) unqualified_count += 1 if field_name in field_count: field_count[field_name] += 1 else: field_count[field_name] = 1 # Write the total count of unqualified cases to the output file. with open(output_file, 'a') as f: f.write("Total Unqualified Cases Found: {}\n".format(unqualified_count)) f.write("Field-wise Unqualified Case Count:\n") for field_name, count in field_count.items(): f.write("Field: {} | Count: {}\n".format(field_name, count)) workspace = arcpy.GetParameterAsText(0) output_file_path_txt = "unqualified_data.txt" check_feature_class_fields(workspace, output_file_path_txt) 检查上述代码是否使用Python 2语言
是的,上述代码使用的是Python 2语言。其中,reload(sys)和sys.setdefaultencoding('utf-8')在Python 3中已经不再需要,而在Python 2中是为了解决编码问题而使用的。而print函数在Python 2中是不需要加括号的,而在Python 3中则需要加上括号。
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