下面的公文发文的流程图，虽然流程环节有坐标信息，但graphviz设置pos参数效果也不是太好  

问题在于如何为流程环节设置绝对坐标

 

D:\Study\myproject\Python_auto_office\flow_report\utils\draw_image.py

'''通过xml流程文件绘制流程图'''
import graphviz  # doctest: +NO_EXE
import get_diy_obj_list as gd
#变量
#流程id
#输入xml路径,输出的目录,图的名字
def draw_image(xml_path,result_path,name):
    #获取两个自定义的数据类型
    activity_obj_list = gd.get_activity_obj_list(xml_path)
    #对环节自定义的数据类型列表进行排序
    # activity_obj_list.sort(cmp=None,key=lambda x:x. sa )
    
    activity_new_obj_list = sorted(activity_obj_list,key=lambda y:(int(y.activity_y)))
    for each in activity_new_obj_list:
        print("############")
        print(each.activity_id)
        print(each.activity_name)
        print(each.activity_x)
        print(each.activity_y)
        print("############")
    
    
    transition_obj_list=gd.get_transition_obj_list(xml_path)
    
    #环节id列表
    activity_id_list=[]
    for each in activity_new_obj_list:
        activity_id_list.append(each.activity_id)
    #环节name列表
    activity_name_list=[]
    for each in activity_new_obj_list:
        activity_name_list.append(each.activity_name)
    
    #环节x坐标列表
    activity_x_list=[]
    for each in activity_new_obj_list:
        activity_x_list.append(each.activity_x)
    
    #环节y坐标列表
    activity_y_list=[]
    for each in activity_new_obj_list:
        activity_y_list.append(each.activity_y)
    # print("y坐标列表")
    # print(activity_y_list)
    
    #连线from列表
    transition_from_list=[]
    for each in transition_obj_list:
        transition_from_list.append(each.transition_from)
    
    #连线to列表
    transition_to_list=[]
    for each in transition_obj_list:
        transition_to_list.append(each.transition_to)
    
    #连线标签列表
    transition_name_list=[]
    for each in transition_obj_list:
        transition_name_list.append(each.transition_name)

    dot = graphviz.Digraph(
    name='我的流程图',
    comment='添加到源码第一行的注释',
    filename=name,
    directory=None,
    format='png', #bmp gif ico jpg json pdf png svg tif
    engine='dot',#dot neato fdp
    encoding='utf8',
    # graph_attr={'rankdir':'TB','splines':'ortho'},
    graph_attr={'rankdir':'TB',#布局方式从上到下
                'splines':'spline'#  弧线 curved（不行）折线 ortho(不行)  直线 polyline（不行 ） 线 line(不行) 线 spline（ok)
                },
    node_attr={'color':'green','fontcolor':'brown','fontname':'FangSong','fontsize':'10','style':'rounded','shape':'box'},
    edge_attr={'color':'red',
               'fontcolor':'#000FF0',
               'fontsize':'10',
               'fontname':'FangSong',
               'arrowsize':'0.5'#箭头大小
               
               },
    body=None,
    strict=False
)

    i=0
    for activitie_id,activitie_name,activity_x,activity_y in zip(
        activity_id_list,
        activity_name_list,
        activity_x_list,
        activity_y_list):
        print(activitie_id)

        dot.node(activitie_id,activitie_name,{'shape':'rect',
                                              'color':'green',
                                              'fontcolor':'black',
                                              'rank':'min',
                                              'imagepos':'tc',
                                            #   'pos':str(int(activity_x))+','+str(int(activity_y)),
                                            #   'pin':'True'
                                              })
       
    for transition_from,transition_to,transitions_lab in zip(
        transition_from_list,
        transition_to_list,
        transition_name_list):
        dot.edge(transition_from,transition_to,label=transitions_lab)
        print(dot)  #doctest: +NORMALIZE_WHITESPACE
    # dot.view(directory="C:\\Users\\human\\Desktop\\")
    dot.view(directory=result_path)
    # dot.view()

D:\Study\myproject\Python_auto_office\flow_report\utils\get_diy_obj_list.py

自定义对像的包

#001.导入个性化操作xml的包
import xml_handle as xh
#002.导入环节的数据类型
import activity_class as ac
#003.导入连线的数据类型
import transition_class as tc


#xml路径
#绘图
# activity_id,
# activity_name,
# activity_x,
# activity_y,
# transition_id,
# transition_name,
# transition_from,
# transition_to,
# transition_lab
#输入xml的路径
#返回一个自定义环节对象列表
def get_activity_obj_list(full_name_path):
    #01.用于存放绘图自定义数据对象列表
    activity_obj_list=[]
    #环节
    #02.环节id
    activity_id= xh.get_activity_id_list(full_name_path)
    #03.环节name
    activity_name= xh.get_activity_name_list(full_name_path)
    #04.环节x坐标
    activity_x = xh.get_activity_x_list(full_name_path)
    #04.环节y坐标
    activity_y = xh.get_activity_y_list(full_name_path)
    # print(activity_id)
    # print(activity_name)
    # print(activity_x)
    # print(activity_y) 
    for id,name,x,y in zip(activity_id,activity_name,activity_x,activity_y):     
        temp_ac=ac.activity(id,name,x,y)
        activity_obj_list.append(temp_ac)
    # print(draw_activity_list)
    return activity_obj_list   
    
    

#返回一个自定义连线对象列表
def get_transition_obj_list(full_name_path):
    #01.用于存放绘图自定义数据对象列表
    transition_obj_list=[]
    #连线
    #02.连线id
    transition_id= xh.get_transition_id_list(full_name_path)
    #03.连线name
    transition_name= xh.get_transition_name_list(full_name_path)
    #04.连线起点
    transition_from = xh.get_transition_from_list(full_name_path)
    #04.连线终点
    transition_to = xh.get_transition_to_list(full_name_path)

    for id,name,t_from,t_to in zip(transition_id,transition_name,transition_from,transition_to):     
        temp_tc=tc.transition(id,name,t_from,t_to)
        transition_obj_list.append(temp_tc)
    return transition_obj_list