我通过接受pologon坐标并生成生成的geoJson文件来动态设置geoJson文件，然后将其附加到“主” geoJson文件或直接在地图上读取。
我已经能够生成geoJson文件，但是它以错误的格式打印。我需要怎么做才能获得正确的格式输出？
我尝试使用：filecontent = [line.rstrip（）用于最近文件中的行]
消除“ \ n”字符，但仍将奇数字符打印到文件中。
我有这些未格式化的输出（开始）。这是每行上每个值前后的新行
{
"type": "FeatureCollection",
"features": [
"{\n \"type\": \"Feature\",\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -96.00362,\n 30.09309,\n 0.0\n ],\n [\n -96.00095,\n 30.09731,\n 0.0\n ],\n [\n -95.99735,\n 30.09713,\n 0.0\n ],\n [\n -95.99848,\n 30.09348,\n 0.0\n ],\n [\n -96.00362,\n 30.09309,\n 0.0\n ]\n ]\n ]\n },\n \"properties\": {\n \"name\": \"Pasture 7\",\n \"styleUrl\": \"#poly-4F2682-3000-128\",\n \"styleHash\": \"-50cd947a\",\n \"styleMapHash\": {\n \"normal\": \"#poly-4F2682-3000-128-normal\",\n \"highlight\": \"#poly-4F2682-3000-128-highlight\"\n },\n \"description\": \"Future site for\\u00a0\\u201cComprehensive Hi-Tech Agricultural Complex\\u201d\",\n \"stroke\": \"#4f2682\",\n \"stroke-opacity\": 1,\n \"stroke-width\": 3,\n \"fill\": \"#4f2682\",\n \"fill-opacity\": 0.5019607843137255\n }\n}{\n \"type\": \"Feature\",\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -96.02551,\n 30.09428,\n 0.0\n ],\n [\n -96.02524,\n 30.09953,\n 0.0\n ],\n [\n -96.0188,\n 30.09913,\n 0.0\n ],\n [\n -96.01874,\n 30.0937,\n 0.0\n ],\n [\n -96.02551,\n 30.09428,\n 0.0\n ]\n ]\n ]\n },\n \"properties\": {\n \"name\": \"Pasture 7\",\n \"styleUrl\": \"#poly-4F2682-3000-128\",\n \"styleHash\": \"-50cd947a\",\n \"styleMapHash\": {\n \"normal\": \"#poly-4F2682-3000-128-normal\",\n \"highlight\": \"#poly-4F2682-3000-128-highlight\"\n },\n \"description\": \"Future site for\\u00a0\\u201cComprehensive Hi-Tech Agricultural Complex\\u201d\",\n \"stroke\": \"#4f2682\",\n \"stroke-opacity\": 1,\n \"stroke-width\": 3,\n \"fill\": \"#4f2682\",\n \"fill-opacity\": 0.5019607843137255\n }\n}\n"
]
}
输出格式错误的结尾
这是我的代码，用于在写入文件之前读取geoJson文件并追加到新变量。
import os
import json
from pathlib import Path
import shutil
files = [os.path.join(sourceoffiles, x) for x in
os.listdir(destinationfiles) if x.endswith(".json")]
newest = max(files , key = os.path.getctime)
recentfile = open(newest)
recentfilecontent = recentfile.read()
#print(recentfilecontent)
geojson_file = {
"type": "FeatureCollection",
"features": [
]
};
geojson_file['features'].append(recentfilecontent)
with open("newarea.js" , "w") as newarea:
json.dump(geojson_file, newarea, indent=4)
这是我的预期输出：
{
"type": "FeatureCollection",
"features": [
{
"type": "Feature",
"geometry": {
"type": "Polygon",
"coordinates": [
[
[
-95.97203,
30.094557,
0
],
[
-95.970563,
30.094285,
0
],
[
-95.969004,
30.094035,
0
],
[
-95.967678,
30.093836,
0
],
[
-95.967681,
30.095099,
0
],
[
-95.967687,
30.096482,
0
],
[
-95.967699,
30.097665,
0
],
[
-95.970578,
30.097908,
0
],
[
-95.97203,
30.094557,
0
]
]
]
},
"properties": {
"name": "Area 1",
"styleUrl": "#poly-FF0004-3000-128-nodesc",
"styleHash": "-188cd7bd",
"styleMapHash": {
"normal": "#poly-FF0004-3000-128-nodesc-normal",
"highlight": "#poly-FF0004-3000-128-nodesc-highlight"
},
"stroke": "#ff0004",
"stroke-opacity": 1,
"stroke-width": 3,
"fill": "#ff0004",
"fill-opacity": 0.5019607843137255
}
},
{
"type": "Feature",
"geometry": {
"type": "Polygon",
"coordinates": [
[
[
-95.979281,
30.0946,
0
],
[
-95.979115,
30.095331,
0
],
[
-95.980096,
30.095487,
0
],
[
-95.980258,
30.094751,
0
],
[
-95.979281,
30.0946,
0
]
]
]
},
"properties": {
"name": "Area 2",
"styleUrl": "#poly-0000FF-3000-128-nodesc",
"styleHash": "-6fb6f6b9",
"styleMapHash": {
"normal": "#poly-0000FF-3000-128-nodesc-normal",
"highlight": "#poly-0000FF-3000-128-nodesc-highlight"
},
"stroke": "#0000ff",
"stroke-opacity": 1,
"stroke-width": 3,
"fill": "#0000ff",
"fill-opacity": 0.5019607843137255
}
}
]
};
您读取的文件包含python视为字符串的json编码数据。当您将其写入geojson_file的features数组时，您正在写入一个字符串。在将结果dict加载到geojson_file之前，您需要解析json：
geojson_file['features'].append(json.loads(recentfilecontent))
换行符消失，成为（无意义的）json空格的一部分，该空格当前表示为包含换行符的json编码字符串。