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Re: quad2dat program
avatarAugust 26, 2013 02:08PM
I think the problem I am faced are well known, but I like to write them down, so we can discuss them.

My quick hack in vb.net looks for each pixel and generates a line type 4 of it.
By doing this also a little sticker takes a couple of KB/MB.
To minimize the size I need to combine the little quads as far as possible.
To do this, I need to have the colour adjusted, because only quads with the same colour can be combined.
Due to the scanning with 256 colours there are, also in plain white and blue (f.e) many differenct white and blue values.
But how should I (by application) decide which colour is the right one? - I do not know.

The colour mapping to existing LDraw colours did not what I expected (there are still too many colours envolved and the formerly nearly one colour surface is brocken because some colours are matched to dark color value and other to light colour value, so visible it distorted the picture).

So I think the best way for a sticker is to leave the colours like they are scanned.

To minimize the filesize in my opinion it is the best to scan each line, and if the neighbour quad has the same colour combine them. (I did not code this yet). This should (I guess) cut the number of lines by 50%.

If somebody has a better idea, please let me know.
SubjectAuthorViewsPosted
quad2dat program Remco Canten534August 21, 2013 12:27PM
Re: quad2dat program Michael Heidemann201August 22, 2013 12:12PM
Re: quad2dat program Remco Canten206August 22, 2013 02:48PM
Re: quad2dat program Willy Tschager184August 23, 2013 12:35AM
Re: quad2dat program Michael Heidemann208August 23, 2013 12:55PM
Re: quad2dat program Magnus Forsberg200August 23, 2013 02:03PM
Re: quad2dat program Michael Heidemann186August 23, 2013 02:30PM
Re: quad2dat program Magnus Forsberg189August 23, 2013 03:10PM
Re: quad2dat program Attachments Michael Heidemann192August 24, 2013 01:45PM
Re: quad2dat program Travis Cobbs183August 25, 2013 12:08PM
Re: quad2dat program Michael Heidemann172August 25, 2013 12:19PM
Re: quad2dat program Michael Heidemann211August 26, 2013 02:08PM
Re: quad2dat program Tim Gould205August 26, 2013 03:10PM
Re: quad2dat program Travis Cobbs202August 26, 2013 03:50PM
Re: quad2dat program Rolf Osterthun249August 27, 2013 03:02AM
Re: quad2dat program Attachments Rolf Osterthun224August 29, 2013 01:17PM
Re: quad2dat program Tim Gould162August 29, 2013 02:41PM
Re: quad2dat program Philippe Hurbain159August 30, 2013 01:28AM
Re: quad2dat program Philippe Hurbain175September 13, 2013 02:42AM
Re: quad2dat program Rolf Osterthun188September 16, 2013 01:02PM
Re: quad2dat program Philippe Hurbain357September 17, 2013 12:16AM



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