分離bondwire腳本

以下腳本對單排的diepad可以適用。首先選擇Pin，執行腳本，落在其上的bondwires的Pt1會分離到不同的位置。可持續執行腳本直到到滿意的位置。將腳本連接到熱鍵可更快速的執行工作。目前只能確保2D平面直線不會交叉，因為立體結構，仍可能有交叉，仍需使用者肉眼判斷。

# -*- coding: utf-8 -*-
from itertools import combinations
from math import sqrt
import random


def ccw(A, B, C):
    Ax, Ay = A
    Bx, By = B
    Cx, Cy = C
    return (Cy - Ay) * (Bx - Ax) > (By - Ay) * (Cx - Ax)


def intersect(A, B, C, D):
    return ccw(A, C, D) != ccw(B, C, D) and ccw(A, B, C) != ccw(A, B, D)


def checkintersection(segments):
    for (A, B), (C, D) in combinations(segments, 2):
        if intersect(A, B, C, D):
            return True
    return False


import ScriptEnv

ScriptEnv.Initialize("Ansoft.ElectronicsDesktop")
oDesktop.RestoreWindow()
oDesktop.ClearMessages("", "", 2)
oProject = oDesktop.GetActiveProject()
oDesign = oProject.GetActiveDesign()
oLayout = oDesign.GetActiveEditor()

sele = oLayout.GetSelections()
AddWarningMessage(str(sele))


def getPkgGrid(pin_name):
    layer = oLayout.GetPropertyValue('BaseElementTab', pin_name, 'Start Layer')
    x0, y0 = oLayout.GetPropertyValue('BaseElementTab', pin_name, 'Location').split(',')
    x0, y0 = float(x0), float(y0)

    grid = []
    for i in range(-10, 11):
        for j in range(-10, 11):
            x = (x0 + 0.05 * i) * 1e-3
            y = (y0 + 0.05 * j) * 1e-3
            pt = oLayout.Point()
            pt.Set(x, y)
            if pin_name in oLayout.FindObjectsByPoint(pt, layer):
                x = (x0 + 0.04 * i) * 1e-3
                y = (y0 + 0.04 * j) * 1e-3
                grid.append((x, y))
    return grid


pkg = getPkgGrid(sele[0])
AddWarningMessage('Pkg Locations: {}'.format(len(pkg)))


def getDieGrid(pin_name):
    layer = oLayout.GetPropertyValue('BaseElementTab', pin_name, 'Start Layer')
    grid = {}
    for i in oLayout.FindObjects('Type', 'bondwire'):
        p1 = oLayout.Point()
        x, y = oLayout.GetPropertyValue('BaseElementTab', i, 'Pt1').split(',')
        pt = p1.Set(float(x) * 1e-3, float(y) * 1e-3)
        obj = oLayout.FindObjectsByPoint(p1, layer)

        if pin_name in oLayout.FindObjectsByPoint(pt, layer):
            x, y = oLayout.GetPropertyValue('BaseElementTab', i, 'Pt0').split(',')
            x, y = float(x) * 1e-3, float(y) * 1e-3
            grid[(x, y)] = i
    return grid


die = getDieGrid(sele[0])
AddWarningMessage('die Locations: {}'.format(len(die)))

pair = {}
N = 0
while (True):
    N += 1
    if N > 1000000:
        AddWarningMessage('Failed')
        segments = []
        break
    segments = []
    random.shuffle(pkg)
    for (pt0, pt1) in zip(die.keys(), pkg[0:len(die)]):
        segments.append((pt0, pt1))
    if checkintersection(segments) == False:
        AddWarningMessage('Successful')
        break

for pt0, pt1 in segments:
    pair[die[pt0]] = pt1

AddWarningMessage(str(pair))
try:
    for bw_name in pair:
        x, y = pair[bw_name]
        oLayout.ChangeProperty(
            [
                "NAME:AllTabs",
                [
                    "NAME:BaseElementTab",
                    [
                        "NAME:PropServers",
                        bw_name
                    ],
                    [
                        "NAME:ChangedProps",
                        [
                            "NAME:Pt1",
                            "X:="     , str(x),
                            "Y:="        , str(y)
                        ]
                    ]
                ]
            ])
except:
    pass
oLayout.Select(sele[0])