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visits member for 2 years, 11 months
seen Nov 7 at 8:15

Mathematica apprentice

My gravatar was made with the following Mathematica code:

Graphics3D[{
  GrayLevel[.3], Specularity[White, 15],
  Lighting -> {{"Directional", 
     RGBColor[.3, .3, .4], {{5, 5, 10}, {5, 5, 0}}},
    {"Point", Black, {12, 3, 15}},  
    {"Point", White, {12, 3, 4}}},
  KnotData[{"TorusKnot", {2, 5}}, "ImageData"]}, 
 ViewVector -> {{0, 0, 5}, {0, 0, 0}}, Boxed -> False, 
 Background -> None, Axes -> False, ImageSize -> 1000]

Oct
2
comment Expanding lists with split strings
did I really write one of those answers? sloppy stuff... :)
Oct
2
awarded  Nice Answer
Oct
2
comment How do you get a list of filenames from a URL?
@WalkingRandomly True, but that's easily fixed.
Oct
2
revised How do you get a list of filenames from a URL?
added cherry-picker
Oct
2
answered How do you get a list of filenames from a URL?
Sep
27
comment Is there a Mathematica barcode reader?
@belisarius I tried to adapt your code to make a "barcode reader", using ImageCapture feeding into your code function via "FrameRate" -> 5, "CaptureAction" -> (capture[#] &). Unfortunately my computer's camera couldn't get the barcode in focus, neither could I hold the item motionless - my arm isn't strong enough apparently. I went down to the local supermarket hoping to access their lasers but they haven't got Mathematica installed at the checkouts so was unable to test the idea any further... :)
Sep
27
comment Is there a Mathematica barcode reader?
@belisarius Yep, that works. In future I'll always bring my white flanks with me... :)
Sep
27
comment Is there a Mathematica barcode reader?
I can't get this to read other examples (eg here)
Sep
24
comment CMYK colours changing
Ah, I see what you're doing now - you're displaying the system color picker to sample the RGB screen colour. I couldn't work out how to display the picker from Mathematica's drawing tools... :)
Sep
23
comment CMYK colours changing
Try CMYKColor[0, .83, 1, 0]? I can't seem to reproduce your image here, strangely...
Sep
23
revised Vertex Labeling Problem in a Graph
added the solution to OP's comment
Sep
23
comment Vertex Labeling Problem in a Graph
@halmir That's the way - thanks! I'll update my answer with your solution.
Sep
22
comment Vertex Labeling Problem in a Graph
@alex - I don't know how to do that... :(
Sep
22
revised Vertex Labeling Problem in a Graph
edited title
Sep
22
answered Vertex Labeling Problem in a Graph
Sep
22
comment How to write plain Greek in a text cell
Similar question posted on Wolfram Community
Sep
21
awarded  Popular Question
Sep
21
revised johansen test error in code
added 117 characters in body
Sep
20
comment How to examine the structure of Graphics objects
This answer by MichaelE2 is very educational too.
Sep
20
comment How to write plain Greek in a text cell
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