本文整理汇总了Python中Matrix.Matrix.append方法的典型用法代码示例。如果您正苦于以下问题：Python Matrix.append方法的具体用法？Python Matrix.append怎么用？Python Matrix.append使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Matrix.Matrix的用法示例。
在下文中一共展示了Matrix.append方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: Truss
# 需要导入模块: from Matrix import Matrix [as 别名]
# 或者: from Matrix.Matrix import append [as 别名]
class Truss(object):
def __init__(self, nodes = [], members = []):
self.nodes = nodes
self.members = members
def createNode(self, position):
self.addNode(Node(position))
def addNode(self, node):
if node in self.nodes:
raise Exception("Tried to add the " + str(node) + \
" to the truss \n" + str(self) + \
" but it was already there")
else:
self.nodes.append(node)
def getNodeAt(self, position):
tempNode = Node(position)
for node in self.nodes:
if tempNode == node:
return node
return None
def getNodeNear(self, position, radius):
p = Vector(position)
nodesAndDistances = [(n.distance(p), n) for n in self.nodes]
if len(nodesAndDistances) == 0:
return None
nearestNode = min(nodesAndDistances)[1]
if nearestNode.distance(p) < radius:
return nearestNode
else:
return None
def getMemberWithNodes(self, node1, node2):
for member in self.members:
if sameElements([node1, node2], [member.node1, member.node2]):
return member
return None
def getMembersWithNode(self, node):
return [member for member in self.members if member.hasNode(node)]
def getMemberNear(self, position, radius):
p = Vector(position)
membersAndDistances = [(m.distance(p), m) for m in self.members]
if len(membersAndDistances) == 0:
return None
nearestMember = min(membersAndDistances)[1]
if (nearestMember.distance(p) < radius):
return nearestMember
else:
return None
def deleteNode(self, node):
for n in self.nodes:
if node == n:
self.nodes.remove(n)
self.deleteMembers(n)
return
raise Exception("The node %s does not exist in %s" % (str(node), str(self)))
def deleteMembers(self, node):
toDelete = self.getMembersWithNode(node)
for member in toDelete:
self.deleteMember(member)
def deleteMember(self, member):
self.members.remove(member)
def connectNodes(self, node1, node2):
if (node1 == node2):
raise Exception("The two nodes are equivalent")
newMember = Member(node1, node2)
if newMember not in self.members:
if node1 in self.nodes and node2 in self.nodes:
self.members.append(newMember)
else:
raise Exception("Tried to add the " + str(newMember) + \
" to the truss, but those nodes don't exist")
else:
raise Exception("Tried to add the " + str(newMember) + \
" to the truss, but it was already there")
def computeForces(self):
self.getEquilibriumMatrix()
self.solveMatrix()
for c in range(self.matrix.width - 1):
self.members[c].force = self.matrix[c][self.matrix.width - 1]
def solveMatrix(self):
if self.matrix.width > self.matrix.height + 1:
raise Exception("The problem is under-defined")
self.matrix.rref()
def getEquilibriumMatrix(self):
self.matrix = []
for node in self.nodes:
self.addXEquation(node)
self.addYEquation(node)
self.matrix = Matrix(self.matrix)
return self.matrix
def addXEquation(self, node):
if not node.fixedX:
row = []
for member in self.members:
if member.hasNode(node):
vector = member.getVector(node)
row.append(float(vector[0]) / vector.length)
else:
row.append(0)
row.append(-node.load[0])
self.matrix.append(row)
#.........这里部分代码省略.........