Week 8-Homework

Assignment 1:

###########################################
##############  作业一   ###################
###########################################

OpenMaya.MFileIO.newFile(True)

#创建小球
for x in range(0, 10, 3):
    for y in range(0, 10, 3):
        for z in range(0, 10, 3):

            pShere = mc.polySphere(r=2)
            mc.move(x, y, z, pShere, absolute=True)
            

# 设置选择物体的起始点坐标，结束点坐标
loc = [(80, 90),(300, 360)]

#按照屏幕的位置进行物体选择
for tx in range(loc[0][0], loc[1][0], 4):
    for ty in range(loc[0][1], loc[1][1], 4):
        MGlobal.selectFromScreen(tx, ty)

 

Homework 2:

objects = mc.ls(typ='phong') + mc.ls(typ='lambert') + mc.ls(typ='shaderGlow')+ mc.ls(typ='shaderGlow')

for obj in objects:

    mc.select(obj, add=True)

OpenMaya.MFileIO.exportSelected('C:/Users/wang161x/Desktop/test2.mb','mayaAscii')

 

Homework three:

Ideas:

First find the corresponding mesh node through MItDependcyNodes, and then use MItDenpendGraph to traverse the nodes, and filter when traversing

def travel_node(node):

    it=OpenMaya.MItDependencyGraph(node,OpenMaya.MFn.kInvalid,OpenMaya.MItDependencyGraph.kUpstream,OpenMaya.MItDependencyGraph.kBreadthFirst,OpenMaya.MItDependencyGraph.kPlugLevel)
    
    it.enablePruningOnFilter()
    
    it.setCurrentFilter(OpenMaya.MFn.kShadingEngine)
    #对遍历的结果进行过滤
    
    while not it.isDone():
    
        print(OpenMaya.MFnDependencyNode(it.currentItem()).name())

        it.next()
        
        
iterator = OpenMaya.MItDependencyNodes(OpenMaya.MFn.kMesh)
# 参数地址 http://help.autodesk.com/view/MAYAUL/2016/CHS/?guid=__cpp_ref_class_m_fn_html
        
while not iterator.isDone():
    print(OpenMaya.MFnDependencyNode(iterator.item()).name())
    
    node = iterator.item()
    
    travel_node(node)
    
    iterator.next()