| 1 | #!/usr/bin/env python |
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| 2 | |
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| 3 | from itertools import izip |
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| 4 | from math import sqrt,atan2,pi,hypot,cos,sin |
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| 5 | |
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| 6 | def grouped(iterable, n): |
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| 7 | "s -> (s0,s1,s2,...sn-1), (sn,sn+1,sn+2,...s2n-1), (s2n,s2n+1,s2n+2,...s3n-1), ..." |
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| 8 | return izip(*[iter(iterable)]*n) |
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| 9 | |
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| 10 | def norm(u): |
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| 11 | return sqrt(u["x"]**2+u["y"]**2+u["z"]**2) |
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| 12 | |
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| 13 | |
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| 14 | def rotate(y,z,rotate_deg): |
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| 15 | r = hypot(z,y) |
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| 16 | theta = atan2(z,y) + rotate_deg*pi/180 |
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| 17 | y = r*cos(theta) |
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| 18 | z = r*sin(theta) |
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| 19 | return [y,z] |
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| 20 | |
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| 21 | |
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| 22 | def makevect(points,a,b): |
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| 23 | res = {} |
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| 24 | res["x"] = points[b,"x"] - points[a,"x"] |
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| 25 | res["y"] = points[b,"y"] - points[a,"y"] |
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| 26 | res["z"] = points[b,"z"] - points[a,"z"] |
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| 27 | return res |
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| 28 | |
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| 29 | |
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| 30 | def pvect(u,v): |
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| 31 | res = {} |
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| 32 | res["x"] = u["y"]*v["z"]- u["z"]*v["y"] |
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| 33 | res["y"] = u["z"]*v["x"]- u["x"]*v["z"] |
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| 34 | res["z"] = u["x"]*v["y"]- u["y"]*v["x"] |
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| 35 | return res |
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| 36 | |
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| 37 | |
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| 38 | def getparts(data,subpart=""): |
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| 39 | if subpart != "" : |
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| 40 | subpart = "."+subpart |
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| 41 | res = None |
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| 42 | i = data.index("root"+subpart+".children :") |
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| 43 | i+=1 |
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| 44 | res = data[i].strip().split(",") |
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| 45 | return res |
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| 46 | |
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| 47 | def dumpparts(list_parts,subpart=""): |
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| 48 | if subpart != "" : |
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| 49 | subpart = "."+subpart |
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| 50 | res = "root"+subpart+".children :\n"+ ",".join(list_parts)+"\n\n" |
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| 51 | return res |
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| 52 | |
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| 53 | def getfield(part,field,data,datatype="integer",subpart=""): |
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| 54 | if subpart != "" : |
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| 55 | subpart = "."+subpart |
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| 56 | |
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| 57 | i = data.index("root."+part+subpart+"."+field+" :") |
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| 58 | i +=1 |
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| 59 | j = i |
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| 60 | while data[j] != "" : |
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| 61 | j += 1 |
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| 62 | out = filter(None,",".join(data[i:j]).split(",")) |
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| 63 | |
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| 64 | |
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| 65 | if field == "children" : |
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| 66 | datatype = "spacedstring" |
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| 67 | |
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| 68 | |
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| 69 | if datatype == "spacedstring": |
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| 70 | pass |
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| 71 | if datatype == "float": |
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| 72 | out =[float(x) for x in out] |
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| 73 | if datatype == "integer": |
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| 74 | out =[int(x) for x in out] |
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| 75 | return out |
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| 76 | |
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| 77 | def dumpfield(part,field,listdata,subpart="") : |
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| 78 | if subpart != "" : |
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| 79 | subpart = "."+subpart |
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| 80 | |
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| 81 | dump = "root."+part+subpart+"."+field+" :\n" |
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| 82 | maxcol = 10 |
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| 83 | col = 1 |
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| 84 | for item in listdata: |
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| 85 | dump += str(item) +"," |
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| 86 | if col == maxcol : |
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| 87 | dump += "\n" |
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| 88 | col = 1 |
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| 89 | col += 1 |
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| 90 | |
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| 91 | dump += "\n\n" |
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| 92 | return dump |
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