Abaqus python脚本开发 第三章 各类指令的方法对象变量 (2)

3.2 Basic geometry commands

3.2.1 EdgeArray object

The EdgeArray is a sequence of Edge objects. If the part is modified, then EdgeArray must be updated for that part.

Access
import part 

mdb.models[name].parts[name].allInternalSets[name].edges mdb.models[name].parts[name].allInternalSurfaces[name].edges mdb.models[name].parts[name].allSets[name].edges mdb.models[name].parts[name].allSurfaces[name].edges mdb.models[name].parts[name].edges mdb.models[name].parts[name].sets[name].edges mdb.models[name].parts[name].surfaces[name].edges 

import assembly 

mdb.models[name].rootAssembly.allinstances.edges mdb.models[name].rootAssembly.allinstances.sets[name].edges mdb.models[name].rootAssembly.allinstances.surfaces[name].edges mdb.models[name].rootAssembly.allInternalSets[name].edges mdb.models[name].rootAssembly.allInternalSurfaces[name].edges mdb.models[name].rootAssembly.allSets[name].edges mdb.models[name].rootAssembly.allSurfaces[name].edges mdb.models[name].rootAssembly.edges mdb.models[name].rootAssembly.instances[name].edges mdb.models[name].rootAssembly.instances[name].sets[name].edges mdb.models[name].rootAssembly.instances[name].surfaces[name].edges mdb.models[name].rootAssembly.modelInstances[i].edges mdb.models[name].rootAssembly.modelInstances[i].sets[name].edges mdb.models[name].rootAssembly.modelInstances[i].surfaces[name].edges mdb.models[name].rootAssembly.sets[name].edges mdb.models[name].rootAssembly.surfaces[name].edges

3.2.1.1 findAt(...)

This method returns the object or objects in the EdgeArray located at the given coordinates.

Required argument

coordinates

Optional argument

printWarning

def Find_edges_by_coordinates(My_mdb,My_instance,coordinate_seq1,coordinate_seq2):    
    e=mdb.models[My_mdb].rootAssembly.instances[My_instance].edges    
    My_edges=e.findAt((coordinate_seq1,),(coordinate_seq2,))    
    return My_edges

3.2.1.2 getClosest(...)

This method returns an object or objects in the EdgeArray closest to the given set of points, where the given points need not lie on the edges in the EdgeArray.

Required argument
coordinates

Optional argument

searchTolerance

getByBoundingBox(...)

This method returns an array of edge objects that lie within the specified bounding box.

Optional arguments

xMin

A float specifying the minimum X-boundary of the bounding box.

yMin

A float specifying the minimum Y-boundary of the bounding box.

zMin

A float specifying the minimum Z-boundary of the bounding box.

xMax

A float specifying the maximum X-boundary of the bounding box.

yMax

A float specifying the maximum Y-boundary of the bounding box.

zMax

A float specifying the maximum Z-boundary of the bounding box.

def Get_edges_by_BoundingBox(My_mdb,My_instance,y_Max,y_Min):    
    e=mdb.models[My_mdb].rootAssembly.instances[My_instance].edges    
    My_edges=e.getByBoundingBox(y_Max,y_Min)    
    return My_edges

7.4.6 getByBoundingCylinder(...)

This method returns an array of edge objects that lie within the specified bounding cylinder.

Required arguments

center1

A tuple of the X-, Y-, and Z-coordinates of the center of the first end of the cylinder.

center2

A tuple of the X-, Y-, and Z-coordinates of the center of the second end of the cylinder.

radius

A float specifying the radius of the cylinder.

def Get_edges_by_BoundingCylinder(My_mdb,My_instance,center1,center2,radius):  
    e=mdb.models[My_mdb].rootAssembly.instances[My_instance].edges  
    My_edges=e.getByBoundingCylinder(center1,center2,radius)  
    return My_edges

7.4.7 getByBoundingSphere(...)

This method returns an array of edge objects that lie within the specified bounding sphere.

Required arguments

center

A tuple of the X-, Y-, and Z-coordinates of the center of the sphere.

radius

A float specifying the radius of the sphere.

def Get_edges_by_BoundingSphere(My_mdb,My_instance,center,radius):  
    e=mdb.models[My_mdb].rootAssembly.instances[My_instance].edges  
    My_edges=e.getByBoundingCylinder(center,radius)  
    return My_edges

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