| 1 | """ |
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| 2 | Information relating to the CanSAS data format. These constants are used in |
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| 3 | the cansas_reader.py file to read in any version of the cansas format. |
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| 4 | """ |
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| 5 | class CansasConstants(object): |
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| 6 | """ |
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| 7 | The base class to define where all of the data is to be saved by |
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| 8 | cansas_reader.py. |
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| 9 | """ |
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| 10 | names = '' |
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| 11 | format = '' |
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| 12 | |
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| 13 | def __init__(self): |
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| 14 | self.names = self.CANSAS_NS |
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| 15 | self.format = self.CANSAS_FORMAT |
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| 16 | |
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| 17 | def iterate_namespace(self, namespace): |
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| 18 | """ |
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| 19 | Method to iterate through a cansas constants tree based on a list of |
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| 20 | names |
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| 21 | |
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| 22 | :param namespace: A list of names that match the tree structure of |
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| 23 | cansas_constants |
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| 24 | """ |
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| 25 | # The current level to look through in cansas_constants. |
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| 26 | return_me = CurrentLevel() |
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| 27 | return_me.current_level = self.CANSAS_FORMAT.get("SASentry") |
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| 28 | # Defaults for variable and datatype |
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| 29 | return_me.ns_datatype = "content" |
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| 30 | return_me.ns_optional = True |
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| 31 | for name in namespace: |
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| 32 | try: |
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| 33 | if name != "SASentry": |
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| 34 | return_me.current_level = \ |
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| 35 | return_me.current_level.get("children").get(name, "") |
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| 36 | if return_me.current_level == "": |
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| 37 | return_me.current_level = \ |
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| 38 | return_me.current_level.get("<any>", "") |
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| 39 | cl_datatype = return_me.current_level.get("storeas", "") |
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| 40 | cl_units_optional = \ |
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| 41 | return_me.current_level.get("units_optional", "") |
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| 42 | # Where are how to store the variable for the given |
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| 43 | # namespace CANSAS_CONSTANTS tree is hierarchical, so |
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| 44 | # is no value, inherit |
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| 45 | return_me.ns_datatype = cl_datatype if cl_datatype != "" \ |
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| 46 | else return_me.ns_datatype |
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| 47 | return_me.ns_optional = cl_units_optional if \ |
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| 48 | cl_units_optional != return_me.ns_optional \ |
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| 49 | else return_me.ns_optional |
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| 50 | except AttributeError: |
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| 51 | return_me.ns_datatype = "content" |
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| 52 | return_me.ns_optional = True |
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| 53 | return return_me |
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| 54 | |
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| 55 | def get_namespace_map(self): |
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| 56 | """ |
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| 57 | Helper method to get the names namespace list |
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| 58 | """ |
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| 59 | return self.names |
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| 60 | |
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| 61 | # CANSAS_NS holds the base namespace and default schema file information |
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| 62 | CANSAS_NS = {"1.0" : {"ns" : "cansas1d/1.0", |
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| 63 | "schema" : "cansas1d_v1_0.xsd" |
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| 64 | }, |
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| 65 | "1.1" : {"ns" : "urn:cansas1d:1.1", |
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| 66 | "schema" : "cansas1d_v1_1.xsd" |
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| 67 | } |
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| 68 | } |
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| 69 | |
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| 70 | # The constants below hold information on where to store the CanSAS data |
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| 71 | # when loaded in using sasview |
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| 72 | ANY = {"storeas" : "content"} |
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| 73 | TITLE = {} |
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| 74 | SASNOTE = {} |
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| 75 | SASPROCESS_TERM = {"attributes" : {"unit" : {}, "name" : {}}} |
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| 76 | SASPROCESS_SASPROCESSNOTE = {"children" : {"<any>" : ANY}} |
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| 77 | SASPROCESS = {"children" : {"name" : {}, |
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| 78 | "date" : {}, |
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| 79 | "description" : {}, |
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| 80 | "term" : SASPROCESS_TERM, |
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| 81 | "SASprocessnote" : SASPROCESS_SASPROCESSNOTE, |
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| 82 | "<any>" : ANY |
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| 83 | }, |
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| 84 | } |
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| 85 | RUN = {"attributes" : {"name" :{}}} |
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| 86 | SASDATA_IDATA_Q = {"units_optional" : False, |
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| 87 | "storeas" : "float", |
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| 88 | "unit" : "x_unit", |
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| 89 | "attributes" : {"unit" : {"storeas" : "content"}}, |
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| 90 | } |
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| 91 | SASDATA_IDATA_I = {"units_optional" : False, |
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| 92 | "storeas" : "float", |
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| 93 | "unit" : "y_unit", |
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| 94 | "attributes" : {"unit" : {"storeas" : "content"}}, |
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| 95 | } |
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| 96 | SASDATA_IDATA_IDEV = {"units_optional" : False, |
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| 97 | "storeas" : "float", |
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| 98 | "unit" : "y_unit", |
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| 99 | "attributes" : {"unit" : {"storeas" : "content"}}, |
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| 100 | } |
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| 101 | SASDATA_IDATA_QDEV = {"units_optional" : False, |
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| 102 | "storeas" : "float", |
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| 103 | "unit" : "x_unit", |
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| 104 | "attributes" : {"unit" : {"storeas" : "content"}}, |
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| 105 | } |
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| 106 | SASDATA_IDATA_DQL = {"units_optional" : False, |
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| 107 | "storeas" : "float", |
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| 108 | "unit" : "x_unit", |
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| 109 | "attributes" : {"unit" : {"storeas" : "content"}}, |
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| 110 | } |
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| 111 | SASDATA_IDATA_DQW = {"units_optional" : False, |
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| 112 | "storeas" : "float", |
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| 113 | "unit" : "x_unit", |
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| 114 | "attributes" : {"unit" : {"storeas" : "content"}}, |
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| 115 | } |
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| 116 | SASDATA_IDATA_QMEAN = {"unit" : "x_unit", |
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| 117 | "attributes" : {"unit" : {}}, |
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| 118 | } |
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| 119 | SASDATA_IDATA_SHADOWFACTOR = {} |
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| 120 | SASDATA_IDATA = {"attributes" : {"name" : {},"timestamp" : {"storeas" : "timestamp"}}, |
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| 121 | "children" : {"Q" : SASDATA_IDATA_Q, |
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| 122 | "I" : SASDATA_IDATA_I, |
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| 123 | "Idev" : SASDATA_IDATA_IDEV, |
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| 124 | "Qdev" : SASDATA_IDATA_QDEV, |
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| 125 | "dQw" : SASDATA_IDATA_DQW, |
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| 126 | "dQl" : SASDATA_IDATA_DQL, |
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| 127 | "Qmean" : SASDATA_IDATA_QMEAN, |
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| 128 | "Shadowfactor" : SASDATA_IDATA_SHADOWFACTOR, |
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| 129 | "<any>" : ANY |
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| 130 | } |
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| 131 | } |
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| 132 | SASDATA = {"attributes" : {"name" : {}}, |
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| 133 | "variable" : None, |
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| 134 | "children" : {"Idata" : SASDATA_IDATA, |
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| 135 | "Sesans": {"storeas": "content"}, |
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| 136 | "zacceptance": {"storeas": "float"}, |
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| 137 | "yacceptance": {"storeas": "float"}, |
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| 138 | "<any>" : ANY |
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| 139 | } |
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| 140 | } |
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| 141 | SASTRANSSPEC_TDATA_LAMDBA = {"storeas" : "float", |
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| 142 | "unit" : "wavelength_unit", |
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| 143 | "attributes" : {"unit" : {"storeas" : "content"}} |
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| 144 | } |
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| 145 | SASTRANSSPEC_TDATA_T = {"storeas" : "float", |
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| 146 | "unit" : "transmission_unit", |
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| 147 | "attributes" : {"unit" : {"storeas" : "content"}} |
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| 148 | } |
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| 149 | SASTRANSSPEC_TDATA_TDEV = {"storeas" : "float", |
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| 150 | "unit" : "transmission_deviation_unit", |
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| 151 | "attributes" : {"unit" :{"storeas" : "content"}} |
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| 152 | } |
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| 153 | SASTRANSSPEC_TDATA = {"children" : {"Lambda" : SASTRANSSPEC_TDATA_LAMDBA, |
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| 154 | "T" : SASTRANSSPEC_TDATA_T, |
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| 155 | "Tdev" : SASTRANSSPEC_TDATA_TDEV, |
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| 156 | "<any>" : ANY, |
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| 157 | } |
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| 158 | } |
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| 159 | SASTRANSSPEC = {"children" : {"Tdata" : SASTRANSSPEC_TDATA, |
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| 160 | "<any>" : ANY, |
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| 161 | }, |
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| 162 | "attributes" : {"name" :{}, "timestamp" : {},} |
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| 163 | } |
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| 164 | SASSAMPLE_THICK = {"unit" : "thickness_unit", |
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| 165 | "storeas" : "float", |
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| 166 | "attributes" : {"unit" :{}}, |
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| 167 | } |
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| 168 | SASSAMPLE_TRANS = {"storeas" : "float",} |
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| 169 | SASSAMPLE_TEMP = {"unit" : "temperature_unit", |
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| 170 | "storeas" : "float", |
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| 171 | "attributes" :{"unit" :{}}, |
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| 172 | } |
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| 173 | SASSAMPLE_POS_ATTR = {"unit" : {}} |
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| 174 | SASSAMPLE_POS_X = {"unit" : "position_unit", |
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| 175 | "storeas" : "float", |
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| 176 | "attributes" : SASSAMPLE_POS_ATTR |
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| 177 | } |
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| 178 | SASSAMPLE_POS_Y = {"unit" : "position_unit", |
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| 179 | "storeas" : "float", |
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| 180 | "attributes" : SASSAMPLE_POS_ATTR |
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| 181 | } |
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| 182 | SASSAMPLE_POS_Z = {"unit" : "position_unit", |
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| 183 | "storeas" : "float", |
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| 184 | "attributes" : SASSAMPLE_POS_ATTR |
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| 185 | } |
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| 186 | SASSAMPLE_POS = {"children" : {"x" : SASSAMPLE_POS_X, |
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| 187 | "y" : SASSAMPLE_POS_Y, |
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| 188 | "z" : SASSAMPLE_POS_Z, |
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| 189 | }, |
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| 190 | } |
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| 191 | SASSAMPLE_ORIENT_ATTR = {"unit" :{}} |
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| 192 | SASSAMPLE_ORIENT_ROLL = {"unit" : "orientation_unit", |
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| 193 | "storeas" : "float", |
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| 194 | "attributes" : SASSAMPLE_ORIENT_ATTR |
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| 195 | } |
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| 196 | SASSAMPLE_ORIENT_PITCH = {"unit" : "orientation_unit", |
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| 197 | "storeas" : "float", |
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| 198 | "attributes" : SASSAMPLE_ORIENT_ATTR |
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| 199 | } |
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| 200 | SASSAMPLE_ORIENT_YAW = {"unit" : "orientation_unit", |
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| 201 | "storeas" : "float", |
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| 202 | "attributes" : SASSAMPLE_ORIENT_ATTR |
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| 203 | } |
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| 204 | SASSAMPLE_ORIENT = {"children" : {"roll" : SASSAMPLE_ORIENT_ROLL, |
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| 205 | "pitch" : SASSAMPLE_ORIENT_PITCH, |
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| 206 | "yaw" : SASSAMPLE_ORIENT_YAW, |
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| 207 | }, |
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| 208 | } |
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| 209 | SASSAMPLE = {"attributes" : |
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| 210 | {"name" : {},}, |
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| 211 | "children" : {"ID" : {}, |
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| 212 | "thickness" : SASSAMPLE_THICK, |
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| 213 | "transmission" : SASSAMPLE_TRANS, |
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| 214 | "temperature" : SASSAMPLE_TEMP, |
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| 215 | "position" : SASSAMPLE_POS, |
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| 216 | "orientation" : SASSAMPLE_ORIENT, |
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| 217 | "details" : {}, |
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| 218 | "<any>" : ANY |
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| 219 | }, |
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| 220 | } |
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| 221 | SASINSTR_SRC_BEAMSIZE_ATTR = {"unit" : ""} |
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| 222 | SASINSTR_SRC_BEAMSIZE_X = {"unit" : "beam_size_unit", |
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| 223 | "storeas" : "float", |
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| 224 | "attributes" : SASINSTR_SRC_BEAMSIZE_ATTR |
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| 225 | } |
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| 226 | SASINSTR_SRC_BEAMSIZE_Y = {"unit" : "beam_size_unit", |
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| 227 | "storeas" : "float", |
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| 228 | "attributes" : SASINSTR_SRC_BEAMSIZE_ATTR |
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| 229 | } |
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| 230 | SASINSTR_SRC_BEAMSIZE_Z = {"unit" : "beam_size_unit", |
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| 231 | "storeas" : "float", |
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| 232 | "attributes" : SASINSTR_SRC_BEAMSIZE_ATTR |
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| 233 | } |
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| 234 | SASINSTR_SRC_BEAMSIZE = {"attributes" : {"name" : {}}, |
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| 235 | "children" : {"x" : SASINSTR_SRC_BEAMSIZE_X, |
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| 236 | "y" : SASINSTR_SRC_BEAMSIZE_Y, |
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| 237 | "z" : SASINSTR_SRC_BEAMSIZE_Z, |
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| 238 | } |
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| 239 | } |
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| 240 | SASINSTR_SRC_WL = {"unit" : "wavelength_unit", |
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| 241 | "storeas" : "float", |
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| 242 | "attributes" : {"unit" :{}, |
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| 243 | } |
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| 244 | } |
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| 245 | SASINSTR_SRC_WL_MIN = {"unit" : "wavelength_min_unit", |
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| 246 | "storeas" : "float", |
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| 247 | "attributes" : {"unit" :{"storeas" : "content"},} |
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| 248 | } |
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| 249 | SASINSTR_SRC_WL_MAX = {"unit" : "wavelength_max_unit", |
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| 250 | "storeas" : "float", |
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| 251 | "attributes" : {"unit" :{"storeas" : "content"},} |
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| 252 | } |
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| 253 | SASINSTR_SRC_WL_SPR = {"unit" : "wavelength_spread_unit", |
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| 254 | "storeas" : "float", |
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| 255 | "attributes" : {"unit" : {"storeas" : "content"},} |
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| 256 | } |
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| 257 | SASINSTR_SRC = {"attributes" : {"name" : {}}, |
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| 258 | "children" : {"radiation" : {}, |
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| 259 | "beam_size" : SASINSTR_SRC_BEAMSIZE, |
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| 260 | "beam_shape" : {}, |
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| 261 | "wavelength" : SASINSTR_SRC_WL, |
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| 262 | "wavelength_min" : SASINSTR_SRC_WL_MIN, |
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| 263 | "wavelength_max" : SASINSTR_SRC_WL_MAX, |
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| 264 | "wavelength_spread" : SASINSTR_SRC_WL_SPR, |
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| 265 | }, |
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| 266 | } |
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| 267 | SASINSTR_COLL_APER_ATTR = {"unit" : {}} |
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| 268 | SASINSTR_COLL_APER_X = {"unit" : "size_unit", |
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| 269 | "storeas" : "float", |
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| 270 | "attributes" : SASINSTR_COLL_APER_ATTR |
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| 271 | } |
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| 272 | SASINSTR_COLL_APER_Y = {"unit" : "size_unit", |
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| 273 | "storeas" : "float", |
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| 274 | "attributes" : SASINSTR_COLL_APER_ATTR |
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| 275 | } |
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| 276 | SASINSTR_COLL_APER_Z = {"unit" : "size_unit", |
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| 277 | "storeas" : "float", |
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| 278 | "attributes" : SASINSTR_COLL_APER_ATTR |
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| 279 | } |
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| 280 | SASINSTR_COLL_APER_SIZE = {"attributes" : {"unit" : {}}, |
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| 281 | "children" : {"storeas" : "float", |
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| 282 | "x" : SASINSTR_COLL_APER_X, |
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| 283 | "y" : SASINSTR_COLL_APER_Y, |
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| 284 | "z" : SASINSTR_COLL_APER_Z, |
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| 285 | } |
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| 286 | } |
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| 287 | SASINSTR_COLL_APER_DIST = {"storeas" : "float", |
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| 288 | "attributes" : {"unit" : {}}, |
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| 289 | "unit" : "distance_unit", |
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| 290 | } |
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| 291 | SASINSTR_COLL_APER = {"attributes" : {"name" : {}, "type" : {}, }, |
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| 292 | "children" : {"size" : SASINSTR_COLL_APER_SIZE, |
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| 293 | "distance" : SASINSTR_COLL_APER_DIST |
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| 294 | } |
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| 295 | } |
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| 296 | SASINSTR_COLL = {"attributes" : {"name" : {}}, |
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| 297 | "children" : |
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| 298 | {"length" : |
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| 299 | {"unit" : "length_unit", |
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| 300 | "storeas" : "float", |
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| 301 | "attributes" : {"storeas" : "content", "unit" : {}}, |
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| 302 | }, |
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| 303 | "aperture" : SASINSTR_COLL_APER, |
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| 304 | }, |
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| 305 | } |
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| 306 | SASINSTR_DET_SDD = {"storeas" : "float", |
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| 307 | "unit" : "distance_unit", |
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| 308 | "attributes" : {"unit" :{}}, |
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| 309 | } |
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| 310 | SASINSTR_DET_OFF_ATTR = {"unit" : {"storeas" : "content" }} |
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| 311 | SASINSTR_DET_OFF_X = {"storeas" : "float", |
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| 312 | "unit" : "offset_unit", |
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| 313 | "attributes" : SASINSTR_DET_OFF_ATTR |
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| 314 | } |
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| 315 | SASINSTR_DET_OFF_Y = {"storeas" : "float", |
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| 316 | "unit" : "offset_unit", |
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| 317 | "attributes" : SASINSTR_DET_OFF_ATTR |
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| 318 | } |
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| 319 | SASINSTR_DET_OFF_Z = {"storeas" : "float", |
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| 320 | "unit" : "offset_unit", |
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| 321 | "attributes" : SASINSTR_DET_OFF_ATTR |
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| 322 | } |
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| 323 | SASINSTR_DET_OFF = {"children" : {"x" : SASINSTR_DET_OFF_X, |
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| 324 | "y" : SASINSTR_DET_OFF_Y, |
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| 325 | "z" : SASINSTR_DET_OFF_Z, |
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| 326 | } |
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| 327 | } |
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| 328 | SASINSTR_DET_OR_ATTR = {} |
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| 329 | SASINSTR_DET_OR_ROLL = {"storeas" : "float", |
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| 330 | "unit" : "orientation_unit", |
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| 331 | "attributes" : SASINSTR_DET_OR_ATTR |
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| 332 | } |
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| 333 | SASINSTR_DET_OR_PITCH = {"storeas" : "float", |
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| 334 | "unit" : "orientation_unit", |
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| 335 | "attributes" : SASINSTR_DET_OR_ATTR |
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| 336 | } |
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| 337 | SASINSTR_DET_OR_YAW = {"storeas" : "float", |
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| 338 | "unit" : "orientation_unit", |
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| 339 | "attributes" : SASINSTR_DET_OR_ATTR |
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| 340 | } |
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| 341 | SASINSTR_DET_OR = {"children" : {"roll" : SASINSTR_DET_OR_ROLL, |
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| 342 | "pitch" : SASINSTR_DET_OR_PITCH, |
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| 343 | "yaw" : SASINSTR_DET_OR_YAW, |
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| 344 | } |
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| 345 | } |
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| 346 | SASINSTR_DET_BC_X = {"storeas" : "float", |
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| 347 | "unit" : "beam_center_unit", |
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| 348 | "attributes" : {"storeas" : "content"} |
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| 349 | } |
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| 350 | SASINSTR_DET_BC_Y = {"storeas" : "float", |
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| 351 | "unit" : "beam_center_unit", |
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| 352 | "attributes" : {"storeas" : "content"} |
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| 353 | } |
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| 354 | SASINSTR_DET_BC_Z = {"storeas" : "float", |
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| 355 | "unit" : "beam_center_unit", |
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| 356 | "attributes" : {"storeas" : "content"} |
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| 357 | } |
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| 358 | SASINSTR_DET_BC = {"children" : {"x" : SASINSTR_DET_BC_X, |
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| 359 | "y" : SASINSTR_DET_BC_Y, |
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| 360 | "z" : SASINSTR_DET_BC_Z,} |
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| 361 | } |
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| 362 | SASINSTR_DET_PIXEL_X = {"storeas" : "float", |
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| 363 | "unit" : "pixel_size_unit", |
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| 364 | "attributes" : {"storeas" : "content" } |
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| 365 | } |
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| 366 | SASINSTR_DET_PIXEL_Y = {"storeas" : "float", |
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| 367 | "unit" : "pixel_size_unit", |
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| 368 | "attributes" : {"storeas" : "content"} |
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| 369 | } |
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| 370 | SASINSTR_DET_PIXEL_Z = {"storeas" : "float", |
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| 371 | "unit" : "pixel_size_unit", |
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| 372 | "attributes" : {"storeas" : "content"} |
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| 373 | } |
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| 374 | SASINSTR_DET_PIXEL = {"children" : {"x" : SASINSTR_DET_PIXEL_X, |
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| 375 | "y" : SASINSTR_DET_PIXEL_Y, |
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| 376 | "z" : SASINSTR_DET_PIXEL_Z, |
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| 377 | } |
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| 378 | } |
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| 379 | SASINSTR_DET_SLIT = {"storeas" : "float", |
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| 380 | "unit" : "slit_length_unit", |
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| 381 | "attributes" : {"unit" : {}} |
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| 382 | } |
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| 383 | SASINSTR_DET = {"attributes" : {"name" : {"storeas" : "content"}}, |
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| 384 | "children" : {"name" : {"storeas" : "content"}, |
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| 385 | "SDD" : SASINSTR_DET_SDD, |
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| 386 | "offset" : SASINSTR_DET_OFF, |
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| 387 | "orientation" : SASINSTR_DET_OR, |
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| 388 | "beam_center" : SASINSTR_DET_BC, |
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| 389 | "pixel_size" : SASINSTR_DET_PIXEL, |
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| 390 | "slit_length" : SASINSTR_DET_SLIT, |
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| 391 | } |
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| 392 | } |
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| 393 | SASINSTR = {"children" : |
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| 394 | {"name" : {}, |
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| 395 | "SASsource" : SASINSTR_SRC, |
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| 396 | "SAScollimation" : SASINSTR_COLL, |
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| 397 | "SASdetector" : SASINSTR_DET, |
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| 398 | }, |
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| 399 | } |
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| 400 | CANSAS_FORMAT = {"SASentry" : |
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| 401 | {"units_optional" : True, |
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| 402 | "storeas" : "content", |
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| 403 | "attributes" : {"name" : {}}, |
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| 404 | "children" : {"Title" : TITLE, |
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| 405 | "Run" : RUN, |
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| 406 | "SASdata" : SASDATA, |
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| 407 | "SAStransmission_spectrum" : SASTRANSSPEC, |
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| 408 | "SASsample" : SASSAMPLE, |
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| 409 | "SASinstrument" : SASINSTR, |
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| 410 | "SASprocess" : SASPROCESS, |
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| 411 | "SASnote" : SASNOTE, |
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| 412 | "<any>" : ANY, |
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| 413 | } |
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| 414 | } |
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| 415 | } |
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| 416 | |
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| 417 | |
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| 418 | class CurrentLevel(object): |
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| 419 | """ |
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| 420 | A helper class to hold information on where you are in the constants tree |
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| 421 | """ |
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| 422 | |
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| 423 | current_level = '' |
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| 424 | ns_datatype = '' |
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| 425 | ns_optional = True |
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| 426 | |
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| 427 | def __init__(self): |
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| 428 | self.current_level = {} |
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| 429 | self.ns_datatype = "content" |
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| 430 | self.ns_optional = True |
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| 431 | |
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| 432 | def get_current_level(self): |
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| 433 | """ |
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| 434 | Helper method to get the current_level map |
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| 435 | """ |
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| 436 | return self.current_level |
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| 437 | |
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| 438 | def get_data_type(self): |
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| 439 | """ |
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| 440 | Helper method to get the ns_datatype label |
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| 441 | """ |
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| 442 | return self.ns_datatype |
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| 443 | |
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| 444 | def get_variable(self): |
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| 445 | """ |
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| 446 | Helper method to get the ns_variable label |
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| 447 | """ |
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| 448 | return self.ns_variable |
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