| Maptitude GISDK Help |
Finds a value in a view field and returns the values in the corresponding fields of your choice, with the option to interpolate both the lookup and returned values when there is not an exact match.
Added in version 2022.
result = LookUpValue(string view_set, array options)
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Argument |
Contents |
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view_set |
The view and set to be searched |
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Option |
Type |
Contents |
|
ReturnFields |
Array |
The fields to be returned |
|
Search |
Array |
A two-element array. The first element is the name of the field to be searched, the second element is the value to be searched for |
|
Interpolate |
Boolean |
"True" or "False" to allow interpolation if an exact match is not found |
An array, with one element for each field in the ReturnFields option.
|
Error Type |
Meaning |
|
Error |
The search view was not found. The options array is invalid. |
folder = RunMacro("G30 Tutorial Folder")
table_file = folder + "MANH_ZIP.bin"
lookup_view = OpenTable("zips", "FFB", {table_file,},)
opts = {ReturnFields: { "Population", "Black", "White"}, Search: {"ZIP", 10028}, "Interpolate": 0}
ret = LookupValue(lookup_view+ "|", opts)
CloseView(lookup_view)
ShowArray(ret)
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Error Type |
Meaning |
|
Error |
One or more of th |
|
NotFound |
There is no geographic record within the search distance of the specified location |
|
Locked |
The required geographic databases are not available; most likely a time-out occurred |
|
Function |
Summary |
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Finds the map feature nearest a point locationLocateRecord() |
|
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Selects a feature in the current layer nearest to each feature in another layer or selection set |
|
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Fills a field in a layer with information about the nearest feature in another layer. |
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