orange3 插件开发知识点积累
蒋高扬
一、安装orange3
python版本 3.6.8
pip install orange3
pip install PyQt5
学习官网：OWWidget — Orange Development 3 documentation
The Data — Orange Data Mining Library 3 documentation
启动命令：orange-canvas
附上一份python freeze
AnyQt==0.0.10
baycomp==1.0.2
Bottleneck==1.3.2
CacheControl==0.12.6
certifi==2019.11.28
chardet==3.0.4
click==7.1.1
commonmark==0.9.1
config==0.4.2
contextvars==2.4
cycler==0.10.0
dbs==0.0.0
decorator==4.4.2
dictdiffer==0.8.1
dlib==19.8.1
docutils==0.16
easydict==1.9
et-xmlfile==1.0.1
face-recognition==1.3.0
face-recognition-models==0.3.0
graphviz==0.8.4
h11==0.9.0
h2==3.2.0
hpack==3.0.0
hstspreload==2020.5.5
httpx==0.12.1
hyperframe==5.2.0
idna==2.6
imageio==2.8.0
immutables==0.12
importlib-metadata==1.6.0
jdcal==1.4.1
joblib==0.14.1
keyring==21.2.1
keyrings.alt==3.4.0
kiwisolver==1.1.0
lockfile==0.12.2
logger==1.4
matplotlib==3.2.0
msgpack==1.0.0
mxnet==1.6.0
networkx==2.4
numpy==1.16.6
oauthlib==3.1.0
opencv-python==4.2.0.32
openpyxl==3.0.3
openTSNE==0.4.3
orange-canvas-core==0.1.12
orange-widget-base==4.5.0
Orange3==3.25.0
pandas==1.0.3
Pillow==6.2.2
PyMySQL==0.9.3
pyparsing==2.4.6
PyQt5==5.13.2
PyQt5-sip==12.7.1
pyqt5-tools==5.13.2.1.6rc1
pyqtgraph==0.10.0
PyQtWebEngine==5.13.2
python-dateutil==2.8.1
python-dotenv==0.13.0
python-louvain==0.14
pytz==2020.1
PyWavelets==1.1.1
pywin32-ctypes==0.2.0
PyYAML==5.3.1
requests==2.23.0
requests-oauthlib==1.3.0
rfc3986==1.4.0
scikit-image==0.16.2
scikit-learn==0.22.2.post1
scipy==1.4.1
serverfiles==0.3.0
six==1.14.0
sniffio==1.1.0
torch==1.2.0
torchvision==0.4.0
urllib3==1.24.3
xlrd==1.2.0
XlsxWriter==1.2.8
zipp==3.1.0
二、插件开发
参照项目代码 o3dbs
安装自带插件，在orange3图形化界面 options下Add-ons
import sys
import urllib.parse
import Orange.data
import requests
import json
from Orange.widgets import widget, gui
from Orange.widgets.settings import Setting
from Orange.data import StringVariable
from PyQt5.QtWidgets import QApplication
class OWDbsKeySearch(widget.OWWidget):
name = "Dbs key Search"
description = "Randomly selects a subset of instances from the data set"
icon = "icons/find.svg"
priority = 10
# class Outputs:
# sample = Output("Data", Orange.data.Table)
outputs = [("Data", Orange.data.Table)]
# Basic (convenience) GUI definition:
# a simple 'single column' GUI layout
want_main_area = False
# with a fixed non resizable geometry.
resizing_enabled = False
ketString = Setting('')
def __init__(self):
super().__init__()
# GUI
box = gui.widgetBox(self.controlArea, "关键字查询")
gui.widgetLabel(box, '')
gui.lineEdit(self.controlArea, self, "ketString", "输入关键字段",
orientation="horizontal", box="ketString",
# callback=self.set_data,
valueType=str)
# self.set_data()
gui.button(self.buttonsArea, self, "查询",
callback=self.set_data)
def set_data(self):
print(self.ketString)
url = "http://***/dbs/search?keyword=" + urllib.parse.quote(self.ketString.encode('utf-8')) + \
"&attributes={id,sid,name,value}"
header = {'Content-Type': 'application/json'}
try:
response = requests.get(url, headers=header)
res = response.text
res = json.loads(res)
arr = []
for i in res:
for v in res[i]:
arr.append([i, res[i][v]['name'], res[i][v]['id'], res[i][v]['sid'],
res[i][v]['value']])
metas = [StringVariable("对象类别"),
StringVariable("对象名称"),
StringVariable("对象id"),
StringVariable("对象sid"),
StringVariable("值")]
domain = Orange.data.Domain([],
metas=metas)
table = Orange.data.Table.from_list(domain, arr)
self.send('Data', table)
except BaseException as e:
print(e)
if __name__ == '__main__':
app = QApplication(sys.argv)
win = OWDbsKeySearch()
win.show()
sys.exit(app.exec_())
import sys
import numpy
import urllib.parse
import Orange.data
import requests
import json
import datetime
from Orange.widgets import widget
from Orange.data import *
from PyQt5.QtWidgets import QApplication
class CsvTable(widget.OWWidget):
name = "Dbs CsvTable"
description = "Randomly selects a subset of instances from the data set"
icon = "icons/scv.svg"
priority = 10
# class Outputs:
# sample = Output("Data", Orange.data.Table)
inputs = [("Data", Orange.data.Table, "set_data"), ("Start_Date", str, "set_start_date"),
("End_Date", str, "set_end_date"), ("Interval", str, "set_interval")]
outputs = [("Data", Orange.data.Table)]
# Basic (convenience) GUI definition:
# a simple 'single column' GUI layout
want_main_area = False
startTime = ''
endTime = ''
inter = ''
def __init__(self):
super().__init__()
self.table = None
def set_start_date(self, start):
self.startTime = start
def set_end_date(self, end):
self.endTime = end
def set_interval(self, interval):
self.inter = interval
def set_data(self, table):
self.table = table
#print(table[0].metas[3])
print("table行数")
print(table)
captions = "{"
for n in table:
captions = captions + n.metas[0] + ":" + n.metas[3] + ":value::::" + n.metas[2] + ","
print(captions)
captions = captions + "}"
if self.inter == '':
self.inter = '5m'
url = "http://***?captions=" + urllib.parse.quote(captions.encode('utf-8')) + \
"&interval=" + self.inter
if self.endTime == '':
today = datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")
else:
today = self.endTime
if self.startTime == '':
yesterday = (datetime.datetime.now()+datetime.timedelta(days=-1)).strftime("%Y-%m-%d %H:%M:%S")
else:
yesterday = self.startTime
print('today:' + today)
print('yesterday:' + yesterday)
url = url + "&begin=" + yesterday + "&end=" + today
header = {'Content-Type': 'application/json'}
try:
response = requests.get(url, headers=header)
res = response.text
res = json.loads(res)
arr = []
metas = []
attributes = []
print("计算列数：cols")
cols = len(list(res)) # 计算列数
print(cols)
attributes.append(TimeVariable("时间"))
for i in res:
attributes.append(ContinuousVariable(i, number_of_decimals=2))
temp = []
time = []
for v in res[i]:
datearray = datetime.datetime.fromtimestamp(int(v))
otherstyleTime = datearray.strftime("%Y-%m-%d %H:%M:%S")
rows = len(list(res[i])) # 计算行数
time.append([otherstyleTime])
temp.append([float(res[i][v])])
if len(arr):
arr = numpy.hstack((arr, temp)) # 水平组合
else:
arr = time
arr = numpy.hstack((arr, temp)) # 水平组合
# 数组重排
# b = numpy.array(arr).reshape(rows, cols*2)
# 数组切片
# a = numpy.array(arr)
# for num in range(cols):
# print(num)
# c = a[0: rows, 0: 2]
domain = Orange.data.Domain(attributes)
table = Orange.data.Table.from_list(domain, arr)
self.send('Data', table)
except BaseException as e:
print(e)
if __name__ == '__main__':
app = QApplication(sys.argv)
win = CsvTable()
win.show()
sys.exit(app.exec_())
import sys
from Orange.widgets import widget, gui
from PyQt5.QtWidgets import *
from PyQt5.QtCore import QDate, QDateTime
from Orange.widgets.settings import Setting
class Interval(widget.OWWidget):
name = "Dbs Interval"
description = "Select Interval"
icon = "icons/interval.svg"
priority = 10
# class Outputs:
# sample = Output("Data", Orange.data.Table)
outputs = [("Interval", str)]
# Basic (convenience) GUI definition:
# a simple 'single column' GUI layout
want_main_area = False
interval = Setting('')
def __init__(self):
super(Interval, self).__init__()
# GUI
box = gui.widgetBox(self.controlArea, "时间间隔")
gui.widgetLabel(box, '')
gui.lineEdit(self.controlArea, self, "interval", "输入时间间隔",
orientation="horizontal", box="interval",
callback=self.set_data,
valueType=str)
def set_data(self):
print(self.interval)
self.send("Interval", self.interval)
if __name__ == '__main__':
app = QApplication(sys.argv)
demo = Interval()
demo.show()
sys.exit(app.exec_())
类似资料：