Question

到目前为止，我所犯的所有“错误”都是我失踪的小事，希望这就是这种情况。我决定使用NUMPY数组主要用于阵列大小调整功能。我注意到导入它需要一段时间，但它基本上是我需要的，所以乞丐不能选择。无论如何，在尝试从数组中“删除”项目并通过“插入”用新数据替换它时，我仍然有一个包含全零的数组。所以，我很茫然。我知道[archstartred]，[archstartgrn]和[archstartblu]的值是正确的，因为我在生成它们时打印它们。为什么值不会填充到数组中？这是我的代码：

#Frame Creation

from numpy import *
frames=array([0 for i in range (0,workingframes*archnodes*3)])
frames.resize(archnodes*3, workingframes)


#Frame Population

for f in range (0, workingframes):

    if f<=(workingframes/2):

        for x in range (0, archnodes):
            delete(frames,[x+f])
            insert(frames,[x+f],(archstartred[x]))
            print archstartred[x]
            delete(frames,[x+f+workingframes])
            insert(frames,[x+f+workingframes],(archstartgrn[x]))
            print archstartgrn[x]
            delete(frames,[x+f+workingframes*2])
            insert(frames,[x+f+workingframes*2],(archstartblu[x]))
            print archstartblu[x]

        print frames
        raw_input('Press control c')  #stop/troubleshoot program


        for y in range (0, nodesperframe):
            archstartred.pop()
            archstartgrn.pop()
            archstartblu.pop()
            archstartred.insert(0, backred)
            archstartgrn.insert(0, backgrn)
            archstartblu.insert(0, backblu)

        archstartred = [int(value) for value in archstartred]
        archstartgrn = [int(value) for value in archstartgrn]
        archstartblu = [int(value) for value in archstartblu]

    else:
        for y in range (0, nodesperframe):
            archstartred.pop(0)
            archstartgrn.pop(0)
            archstartblu.pop(0)
            archstartred.append(backred)
            archstartgrn.append(backgrn)
            archstartblu.append(backblu)

        archstartred = [int(value) for value in archstartred]
        archstartgrn = [int(value) for value in archstartgrn]
        archstartblu = [int(value) for value in archstartblu]

        for x in range (0, archnodes):
            delete(frames,[x+f])
            insert(frames,[x+f],(archstartred[x]))
            delete(frames,[x+f+workingframes])
            insert(frames,[x+f+workingframes],(archstartgrn[x]))
            delete(frames,[x+f+workingframes*2])
            insert(frames,[x+f+workingframes*2],(archstartblu[x]))

Answer 1

numpy函数insert和delete返回副本而不是就地发生。将结果分配回frames而不是丢弃它。

使用带有DELETE和INSERT的FOR循环填充Numpy数组

1 个答案: