Wednesday, April 22, 2015

LMSTFY ( Let Me That For You)

I should have mentioned this long ago before you invested time in reading my blog, but here goes... Fact is I'm not particularly bright, I'm just inquisitive (and as mentioned previously constructively lazy).  This means a couple of things; first I love to find an easier way to do almost anything, and second sometimes I spend more time researching than I would if I had just done the task (oh but next time it will be so much faster). Because of this, sometimes I know things, and when you know things people like to ask you things because you might know that particular thing they want.  Yes almost daily I am tempted to just say "Let me Google that for you" because that would be much easier for me than actually explaining it (reference lazy thing above).

I have about 150 out of the 240 layer numbers that I use daily in mapping projects memorized.  Over time though you need to add new layers or break them down to a more granular level so consequently you can see that there are a bunch I don't know.  I could memorize them (and a few I will) but the majority of the others I just want an easy way to find the rare one I need.  Hence or "Search Layer Names".

print ' modified 7:31 AM 4/16/2015'
# Display layers matching search string
Copyright 2015 Dennis Shimer
Vr Mapping copyright Cardinal Systems, LLC
No warranties as to safety or usability expressed or implied.
Free to use, copy, modify, distribute with author credit.

Prompts user for layer name (or any part) then displays layer
numbers and full names of layers matching string.

def lines2lists(AListOfDataLines):
    Function readlines returns an entire file with each line as a string in a
    list of data.  This function will convert each string into a list of words,
    then return a list of lists. Why? Just because I like to work this way.
    Example:            lines2lists(['first line','the second line','or sentences'])
    Would return:       [['first','line'],['the','second','line'],['or','sentences]]
    for Line in AListOfDataLines:
    return DataList


#If sent argument use as search string else prompt.
if VrArgs:
    SearchText=PyVrGui().InputDialog ('Search String', 'Layer numbers by name')[1]
LayerFileName = VrCfg().GetLayerNameFile ()
LayerFile = open(LayerFileName , 'r')
LayerData = LayerFile.readlines()
LayerList = man.lines2lists(LayerData)

#Search through data, if string found add it to a multi-line printable string.
for DataLine in LayerList :
    if len(DataLine) > 1 :
        if DataLine[1].count(SearchText.upper()):
            PrintString=PrintString+DataLine[0]+' '+DataLine[1]+'\n'
            PrintList.append(DataLine[0]+' '+DataLine[1])

# Two possibilities, the first commented line just displays the found layers
# The rest will let the user select one correct entry and send a LAY= command.
if PrintString:
#    PyVrGui().MsgBox(PrintString , 'Matching Layers')
    PromBox = VrPromBox ("Set Layer", 30, 1)
    PromBox.AddList ("Layer", 40, len(PrintList)+1, 0)
    for LayerItem in PrintList:
        PromBox.AddListItem (LayerItem)
    if (PromBox.Display(0) == 0):
        SetToLayer= PromBox.GetListByPrompt ("Layer")
    if SetToLayer : PyVrGui().PushKeyin('lay={:s}'.format( SetToLayer.split()[0]))
else :
    PyVrGui().MsgBox('No Match to {:s}'.format(SearchText), 'Matching Layers')

No comments:

For anyone interested in trying VrPython for the first time or if you are early in the game, I suggest going to the earliest posts and working forward. I use VrPython every day for many wonderful things, needless to say it will change and could potentially damage a file. Any risk associated with using VrPython or any code or scripts mentioned here lies solely with the end user.

The "Personal VrPython page" in the link section will contain many code examples and an organized table of contents to this blog in a fairly un-attractive (for now) form.