【pycad】让Cpython在CAD中开发

枫叶棋语 · 发表于 2023-7-28 21:06

本帖最后由枫叶棋语于 2023-8-22 22:37 编辑
继上次的实验，我们初步实现了Ironpython环境加载Cpython环境，经过一番苦战，实现了在cad上运行Cpython，包括CAD注册命令，兼容Ipy脚本，本次更新实现了Cpython在CAD上运行，并依靠第三方模块开发的功能。相当于80%成品，因为本人能力有限，未能脱离借助Ironpython，直接使用c#调用Cpython，望后续有看到的兄弟助理一把。
这个是Cpython引擎

import clr
import sys
import os
clr.AddReference("Python.Runtime")
clr.AddReference("acmgd")
clr.AddReference("AcCoreMgd")
clr.AddReference("AcDbMgd")
clr.AddReference("System")
import System
import Autodesk.AutoCAD.ApplicationServices as acap
from Python.Runtime import *
dllpath = System.Reflection.Assembly.GetExecutingAssembly().Location
dlldir = os.path.dirname(dllpath)
supportdir = os.path.join(dlldir, "support")
extensionsdir = os.path.join(dlldir, "extensions")
referencedir = os.path.join(dlldir,"Reference")
class CpyEngine:
def __init__(self,pydll):
self.pydll =pydll
self.pyhome =os.path.dirname(pydll)
self.pypath = "{self.pyhome}\\Lib;{self.pyhome}\\Lib\\site-packages"
self.SetCpyEnviromnent()
self.Initilize()
@staticmethod
def prinf(msg):
acap.Application.DocumentManager.MdiActiveDocument.Editor.WriteMessage(f"\n{msg}\n")
def SetCpyEnviromnent(self):
'''配置Cpython环境变量'''
os.environ["PYTHONHOME"]=self.pyhome
os.environ["PYTHONNET_PYDLL"] = self.pydll
os.environ["PYTHONPATH"] = self.pypath
def Initilize(self):
'''初始化Cpython引擎'''
if not PythonEngine.IsInitialized:
PythonEngine.Initialize()
PythonEngine.PythonPath =self.pypath
def RunCpyScript(self,scriptpath):
'''运行脚本'''
import traceback
self.scope = Py.CreateScope()
pysys=Py.Import("sys")
pysys.path.append(dlldir)
pysys.path.append(supportdir)
pysys.path.append(extensionsdir)
pysys.path.append(referencedir)
with open(scriptpath,"r",encoding="utf-8") as file:
pythoncode= file.read()
with Py.GIL():
try:
self.scope.Exec(pythoncode)
except:
error =traceback.format_exc()
self.prinf(error)

复制代码

import clr
clr.AddReference("System.Windows.Forms")
clr.AddReference("System.Drawing")
import System
from System.Drawing import *
from System.Windows.Forms import *
import os
from pycad.system.acad import acap, prinf
from pycad.system.CpyEngine import CpyEngine
def check_and_create_file(filename):
'''判断文件是否存在,不存在就创建空文件'''
if not os.path.exists(filename):
open(filename, 'w')
class MainForm(Form):
def __init__(self):
self.InitializeComponent()
self.Resize += self.FormChanged
self.MinimumSize = Size(500, 500)
self.dllpath = System.Reflection.Assembly.GetExecutingAssembly().Location
self.dlldir = os.path.dirname(self.dllpath)
self.history = self.dlldir+"\CpyHistory.txt"
check_and_create_file(self.history)
self.HistoryPaths = self.ReadHitory()
self.ImportPaths(self.HistoryPaths)
self.engine = CpyEngine(r"D:\Program Files\Python310\python310.dll")
@staticmethod
def SetButton(button,anchor, x, y, name, text, func):
button.Anchor =anchor
button.Location = Point(x, y)
button.Size = Size(75, 25)
button.Name = name
button.Text = text
button.UseVisualStyleBackColor = True
button.Click += func
@staticmethod
def AddItem(listview: ListView, lst):
item = ListViewItem(items=tuple(lst))
listview.Items.Add(item)
def InitializeComponent(self):
self._Add = Button()
self._Delete = Button()
self._Clear = Button()
self._Apply = Button()
self._Cancel = Button()
self._Reload = Button()
self._ScriptPaths = ListView()
self._FileName = ColumnHeader()
self._FilePath = ColumnHeader()
self.Size = Size(500, 550)
self.ButtonWidth = 75
self.ButtonHeight = 25
self.ButtonX = 425
self.ListViewWidth =self.ButtonX-75
self.ListViewHeight =self.Size.Height -200
# ScriptPaths
self._ScriptPaths.View = View.Details
self._ScriptPaths.Anchor = AnchorStyles.Left|AnchorStyles.Top|AnchorStyles.Bottom|AnchorStyles.Right
self._ScriptPaths.Location = Point(30, 50)
self._ScriptPaths.Name = "ScriptPaths"
self._ScriptPaths.Size = Size(self.ListViewWidth,self.ListViewHeight)
self._ScriptPaths.GridLines =True
self._ScriptPaths.UseCompatibleStateImageBehavior = False
self._ScriptPaths.Columns.Add("文件")
self._ScriptPaths.Columns.Add("路径")
self._ScriptPaths.Columns[0].Width= 150
self._ScriptPaths.Columns[1].Width = self.ListViewWidth-150
self._ScriptPaths.BorderStyle = BorderStyle.FixedSingle
self._ScriptPaths.FullRowSelect =True
self.SetButton(self._Add, AnchorStyles.Right| AnchorStyles.Top, 400, 70, "Add", "添加", self.AddClick)
self.SetButton(self._Delete, AnchorStyles.Right| AnchorStyles.Top, 400, 140, "Delete", "删除", self.DeleteClick)
self.SetButton(self._Clear, AnchorStyles.Right| AnchorStyles.Top, 400, 210, "Clear", "清空", self.ClearClick)
self.SetButton(self._Reload, AnchorStyles.Bottom|AnchorStyles.Right,200, 450, "Reload", "重载", self.ReloadClick)
self.SetButton(self._Apply, AnchorStyles.Bottom|AnchorStyles.Right,300, 450, "Apply", "确定", self.ApplyClick)
self.SetButton(self._Cancel, AnchorStyles.Bottom|AnchorStyles.Right,400, 450, "Cancel", "取消", self.CancelClick)
# 窗体添加控件
self.Controls.Add(self._ScriptPaths)
self.Controls.Add(self._Cancel)
self.Controls.Add(self._Apply)
self.Controls.Add(self._Clear)
self.Controls.Add(self._Reload)
self.Controls.Add(self._Delete)
self.Controls.Add(self._Add)
self.Text = "加载CPython脚本"
self.ResumeLayout(False)
#读取history文本内容
def ReadHitory(self):
with open(self.history,"r",encoding="utf-8") as file:
existing_paths = file.read().splitlines()
return existing_paths
#读取listview内容
def ReadListView(self):
paths = []
for item in self._ScriptPaths.Items:
path = item.SubItems[1].Text
paths.append(path)
return paths
#导入路径
def ImportPaths(self,paths):
for path in paths:
basename = os.path.basename(path)
self.AddItem(self._ScriptPaths,[basename,path])
#导出路径
def ExportPaths(self,paths):
with open(self.history, "w") as file:
for item in self._ScriptPaths.Items:
path = item.SubItems[1].Text
if path not in existing_paths:
file.write(path + '\n')
def AddClick(self, sender, e):
openFileDialog = OpenFileDialog()
openFileDialog.Multiselect = True
if openFileDialog.ShowDialog() == DialogResult.OK:
self._ScriptPaths.Items.Clear()
file_names = openFileDialog.FileNames
result = set(file_names)|set(self.HistoryPaths)
self.ImportPaths(result)
self.HistoryPaths =list(result)
for path in file_names:
self.engine.RunCpyScript(path)
def DeleteClick(self, sender, e):
selected_items = self._ScriptPaths.SelectedItems
for item in selected_items:
self._ScriptPaths.Items.Remove(item)
self.HistoryPaths =self.ReadListView()
def ClearClick(self, sender, e):
self._ScriptPaths.Items.Clear()
self.HistoryPaths = []
def ApplyClick(self, sender, e):
with open(self.history, "w") as file:
for path in self.HistoryPaths:
file.write(f"{path}\n")
self.Close()
def ReloadClick(self, sender, e):
selected_items = self._ScriptPaths.SelectedItems
for item in selected_items:
path = item.SubItems[1].Text
self.engine.RunCpyScript(path)
def CancelClick(self, sender, e):
self.Close()
def FormChanged(self, sender, e):
self._ScriptPaths.Columns[1].Width = self.Size.Width - 200
loadform = MainForm()
acap.Application.ShowModelessDialog(loadform)

import clr 
clr.AddReference("System.Windows.Forms") 
clr.AddReference("System.Drawing") 
import System 
from System.Drawing import * 
from System.Windows.Forms import * 
import os 
from pycad.system.acad import acap, prinf 
from pycad.system.CpyEngine import CpyEngine 
def check_and_create_file(filename): 
    '''判断文件是否存在,不存在就创建空文件''' 
    if not os.path.exists(filename): 
        open(filename, 'w') 
class MainForm(Form): 
    def __init__(self): 
        self.InitializeComponent() 
        self.Resize += self.FormChanged 
        self.MinimumSize = Size(500, 500) 
        self.dllpath = System.Reflection.Assembly.GetExecutingAssembly().Location 
        self.dlldir = os.path.dirname(self.dllpath) 
        self.history = self.dlldir+"\CpyHistory.txt" 
        check_and_create_file(self.history) 
        self.HistoryPaths = self.ReadHitory() 
        self.ImportPaths(self.HistoryPaths) 
        self.engine = CpyEngine(r"D:\Program Files\Python310\python310.dll") 
    @staticmethod 
    def SetButton(button,anchor, x, y,  name, text, func): 
        button.Anchor =anchor 
        button.Location = Point(x, y) 
        button.Size = Size(75, 25) 
        button.Name = name 
        button.Text = text 
        button.UseVisualStyleBackColor = True 
        button.Click += func 
         
    @staticmethod 
    def AddItem(listview: ListView, lst): 
        item = ListViewItem(items=tuple(lst)) 
        listview.Items.Add(item) 
         
    def InitializeComponent(self): 
        self._Add = Button() 
        self._Delete = Button() 
        self._Clear = Button() 
        self._Apply = Button() 
        self._Cancel = Button() 
        self._Reload = Button() 
        self._ScriptPaths = ListView() 
        self._FileName = ColumnHeader() 
        self._FilePath = ColumnHeader() 
        self.Size = Size(500, 550) 
        self.ButtonWidth = 75 
        self.ButtonHeight = 25 
        self.ButtonX = 425 
        self.ListViewWidth =self.ButtonX-75 
        self.ListViewHeight =self.Size.Height -200 
         
        # ScriptPaths 
        self._ScriptPaths.View = View.Details 
        self._ScriptPaths.Anchor = AnchorStyles.Left|AnchorStyles.Top|AnchorStyles.Bottom|AnchorStyles.Right 
        self._ScriptPaths.Location = Point(30, 50) 
        self._ScriptPaths.Name = "ScriptPaths" 
        self._ScriptPaths.Size = Size(self.ListViewWidth,self.ListViewHeight) 
        self._ScriptPaths.GridLines =True 
        self._ScriptPaths.UseCompatibleStateImageBehavior = False 
        self._ScriptPaths.Columns.Add("文件") 
        self._ScriptPaths.Columns.Add("路径") 
        self._ScriptPaths.Columns[0].Width= 150 
        self._ScriptPaths.Columns[1].Width = self.ListViewWidth-150 
        self._ScriptPaths.BorderStyle = BorderStyle.FixedSingle 
        self._ScriptPaths.FullRowSelect =True 
             
        self.SetButton(self._Add,    AnchorStyles.Right| AnchorStyles.Top,  400,  70,    "Add", "添加", self.AddClick) 
        self.SetButton(self._Delete, AnchorStyles.Right| AnchorStyles.Top,  400, 140, "Delete", "删除", self.DeleteClick) 
        self.SetButton(self._Clear,  AnchorStyles.Right| AnchorStyles.Top,  400, 210,  "Clear",  "清空", self.ClearClick) 
        self.SetButton(self._Reload, AnchorStyles.Bottom|AnchorStyles.Right,200, 450,  "Reload", "重载", self.ReloadClick) 
        self.SetButton(self._Apply,  AnchorStyles.Bottom|AnchorStyles.Right,300, 450,  "Apply",  "确定", self.ApplyClick) 
        self.SetButton(self._Cancel, AnchorStyles.Bottom|AnchorStyles.Right,400, 450, "Cancel",  "取消", self.CancelClick) 
 
        # 窗体添加控件 
        self.Controls.Add(self._ScriptPaths) 
        self.Controls.Add(self._Cancel) 
        self.Controls.Add(self._Apply) 
        self.Controls.Add(self._Clear) 
        self.Controls.Add(self._Reload) 
        self.Controls.Add(self._Delete) 
        self.Controls.Add(self._Add) 
        self.Text = "加载CPython脚本" 
        self.ResumeLayout(False) 
         
    #读取history文本内容 
    def ReadHitory(self): 
        with open(self.history,"r",encoding="utf-8") as file: 
            existing_paths = file.read().splitlines() 
            return existing_paths 
    #读取listview内容 
    def ReadListView(self): 
        paths = [] 
        for item in self._ScriptPaths.Items: 
            path = item.SubItems[1].Text 
            paths.append(path) 
        return paths 
    #导入路径 
    def ImportPaths(self,paths): 
        for path in paths: 
            basename = os.path.basename(path) 
            self.AddItem(self._ScriptPaths,[basename,path]) 
    #导出路径    
    def ExportPaths(self,paths): 
        with open(self.history, "w") as file: 
            for item in self._ScriptPaths.Items: 
                path = item.SubItems[1].Text 
                if path not in existing_paths: 
                    file.write(path + '\n') 
 
    def AddClick(self, sender, e): 
        openFileDialog = OpenFileDialog() 
        openFileDialog.Multiselect = True 
        if openFileDialog.ShowDialog() == DialogResult.OK: 
            self._ScriptPaths.Items.Clear() 
            file_names = openFileDialog.FileNames 
            result = set(file_names)|set(self.HistoryPaths) 
            self.ImportPaths(result) 
            self.HistoryPaths =list(result) 
            for path in file_names: 
                self.engine.RunCpyScript(path) 
             
    def DeleteClick(self, sender, e): 
        selected_items = self._ScriptPaths.SelectedItems 
        for item in selected_items: 
            self._ScriptPaths.Items.Remove(item) 
        self.HistoryPaths =self.ReadListView() 
 
    def ClearClick(self, sender, e): 
        self._ScriptPaths.Items.Clear() 
        self.HistoryPaths = [] 
         
    def ApplyClick(self, sender, e): 
        with open(self.history, "w") as file: 
            for path in self.HistoryPaths: 
                file.write(f"{path}\n") 
        self.Close() 
             
    def ReloadClick(self, sender, e): 
        selected_items = self._ScriptPaths.SelectedItems 
        for item in selected_items: 
            path = item.SubItems[1].Text 
            self.engine.RunCpyScript(path) 
             
    def CancelClick(self, sender, e): 
        self.Close() 
 
    def FormChanged(self, sender, e): 
        self._ScriptPaths.Columns[1].Width = self.Size.Width - 200 
         
loadform = MainForm() 
acap.Application.ShowModelessDialog(loadform)

与此同时，我们建立一个CpyReload脚本，用于命令重载所有脚本命令，代码如下：

from pycad.system import prinf
from pycad.system.CpyEngine import CpyEngine
import System
import os,traceback
import re
def check_and_create_file(filename):
'''判断文件是否存在,不存在就创建空文件'''
if not os.path.exists(filename):
open(filename, 'w')
class Reload:
def __init__(self):
self.engine = CpyEngine(r"D:\Program Files\Python310\python310.dll")
self.dllpath = System.Reflection.Assembly.GetExecutingAssembly().Location
self.dlldir = os.path.dirname(self.dllpath)
self.history = self.dlldir+"\CpyHistory.txt"
check_and_create_file(self.history)
self.reload()
def reload(self):
with open(self.history,"r",encoding="utf-8") as file:
paths = file.read().splitlines()
for path in paths:
self.engine.RunCpyScript(path)
Reload()

复制代码

至此，CpyCAD的框架的python代码基本搭设完成，由于权限问题，暂时不能上传文件。有需要的可以联系。

枫叶棋语 · 发表于 2023-7-29 10:46

本帖最后由枫叶棋语于 2023-8-22 21:23 编辑

同样我们可以调用python的opencv，scipy，matplot，这里就不一一展示，到这一步，我们就基本完成了cpython 开发CAD方法，同时避免了com方式
向CAD中添加图元

from pycad.system import *
from pycad.runtime import *
from typing import *
@Command()
def addline(doc):
pt1 = getpoint().value
pt2 = getpoint().value
line = Line(pt1,pt2)
with dbtrans(doc) as tr:
tr.addentity(tr.btr,line)
@Command()
def addcircle(doc):
center = getpoint().value
radius = getreal().value
cir = Circle()
cir.Center ,cir.Radius =center,radius
with dbtrans(doc) as tr:
tr.addentity(tr.btr,cir)
import numpy as np
@Command()
def testnp(doc):
lst = np.array([1,2,3,4])
prinf(f"numpy数组{lst}")

复制代码

枫叶棋语 · 发表于 2023-7-29 21:41

枫叶棋语发表于 2023-7-29 00:47
这里面还是有一些问题需要处理，这个只是一个开始

我的pycad使用Ironpython3.4，除了c#构造一个简单的环境加载，其余所有功能全部由py代码构成，注册命令方式也不一样，目前方向往Cpython进行拓展

caoliu023 · 发表于 2023-7-28 22:06

如果能用py第三方库，那就有有很多想象空间了，就看有没有人发掘出潜力让我涨涨知识，还有个期待是希望有人能把Javascript API重新带回cad

桌子好像是放弃Javascript API了

[飞马系列] AutoCAD 2014 之Javascript API编程初探
http://bbs.mjtd.com/forum.php?mo ... &fromuid=287566
(出处: 明经CAD社区)

zlf2008 · 发表于 2023-7-28 22:06

谢谢分享！认真学习，想自己搞一个自己熟悉的常用的工具

枫叶棋语 · 发表于 2023-7-29 00:47

caoliu023 发表于 2023-7-28 22:06
如果能用py第三方库，那就有有很多想象空间了，就看有没有人发掘出潜力让我涨涨知识，还有个期待是希望有人 ...

这里面还是有一些问题需要处理，这个只是一个开始

edata · 发表于 2023-7-29 15:46

不知道和版主的pycad有什么区别 http://bbs.mjtd.com/thread-180587-1-1.html

陨落 · 发表于 2023-7-30 10:42

edata 发表于 2023-7-29 15:46
不知道和版主的pycad有什么区别 http://bbs.mjtd.com/thread-180587-1-1.html

我还以为就是基于版主的pycad呢？如果不是，那枫总一开始所有能嵌入cad的ironpython是从哪来的呢？难道是自己用C#写了个dll，通过c#传递参数给ironpython并调用他？

枫叶棋语 · 发表于 2023-7-30 18:44

陨落发表于 2023-7-30 10:42
我还以为就是基于版主的pycad呢？如果不是，那枫总一开始所有能嵌入cad的ironpython是从哪来的呢？难道是 ...

c#写了一个dll，实现cad能够加载运行第一个py脚本，其他功能全部用py脚本实现，相当于99%的Ironpython

caoliu023 · 发表于 2023-8-22 21:38

楼主也可以发网盘链接，发个百度网盘永久的链接

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[【PyCAD】] 【pycad】让Cpython在CAD中开发

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