![]() ![]() Typical topics have covered: the explosion of TFT color LCD panels with ever-increasing size into laptops and flat-screen monitors PDP (plasma display panels) for high-definition TV CRT replacement polymer LED (PLED) or organic LED (OLED) displays for the small color displays in games, cell phones, and PDAs. In recent years, countless articles have focused on new display technologies. Some new applications for the improved technology are presented. The origins of LEDs and their traditional applications are discussed. Print ('\n'.join ( (' ' * self.padding).This article reviews LED display technology that has rapidly changed over its 35 years. Self.cells = ĬellLines.append (self.cells. ![]() Lines.append (' ' + char (6) * self.width + ' ')ĭef _init_ (self, encoding, cells, padding = 1, width = 4, height = 2, hChar = '*', vChar = '*'): Lines.append (char (4) + ' ' * self.width + char (5) ) Lines.append (' ' + char (3) * self.width + ' ') Lines.append (char (1) + ' ' * self.width + char (2) ) Lines.append (' ' + char (0) * self.width + ' ') Return self.hChar if segment in (0, 3, 6) else self.vChar I will take this as a fun exercise (and maybe my solution gives you some ideas): from collections import defaultdictĭef _init_ (self, width = 4, height = 2, hChar = '*', vChar = '*'): They could be useful if we continue extending the solution. I know that I didn't use some of the elements I defined at the beginning, but this is how I would have modeled it. The case of width*n is, in fact, a particular case of this setup, and can be constructed with: def sizeVH(vSegHeight,hSegWidth,vSep,hSep): The code for printNumberNY is not much more difficult than the one for the simple case of width*n. # Real rendering of the (full) number in 7-segment form If len(phyLine) != ph圜olW : raise "Inconsistent physical column width" Ph圜olW= ), len(phyLine), len(phyLine), len(phyLine), len(phyLine) ] # This could be moved to an object constructor so is computed only once ![]() PhyRowH= ), len(structN), len(structN), len(structN), len(structN), len(structN), len(structN) ] In the following definitions I indulged in some artistic liberty just for the sake of the example: phyLineN= And it can result very convenient to express for each element how we would like to see it in an off and on state. This can be represented as a series of strings. Here, most logical rows and columns consist of only one physical row and column, respectively, except logical rows 2 and 4 (with 2 physical lines each), and logical column 2, with 4 physical columns. can consist of several physical lines and/or columns, like in: 012 34 Next step is to realize that, allowing for spacing, the display consists of a 7x5 matrix: 01234Īnd that each line and column in the matrix are logical ones, i.e. The information required to produce different sizes and forms is encoded through these representations and the other structures.įor example, def printNumberDoubleSize(num): Its structure is only for easy developer visualization. The strings entered for each SSDigit are just canonical representations. Print("Error in digit ".format(digit,linenum)) If digit.lines not in linetype.valueForRepr : Typeforline= įor linenum, linetype in enumerate(typeforline) : """Each of the 5 lines a SSDigit has, with its LineType"""ĭigits= With their possible representations and segment positions""" """Each of the 2 line types (1 horizontal segment or 2 vertical), Please consider the following code class SSDigit(object): This encoding should allow you to produce different outputs. ![]() Enter them manually, but in a generally encoded way. Don't try to produce segments programmatically. ![]()
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