我正在寻找某种公式来确定我可以在不大于给定宽度的Code 128条形码上容纳多少数据。用例是一个腕带,上面印有条形码。
是否有最小条形需要最小尺寸才能使所有内容可见?是否在任何地方都可以使用尺寸比例(例如,“ Z占用的空间是0的两倍”)?我看到Code 128支持数字字符串的压缩。消除字母字符会删除更多数据,但是这样做最终会获得相同宽度的更多数据吗?
编辑:同时对数字字符串进行压缩,解决方案是仅测试10、12、15等字符串。我们决定使用12,因为这对于我们的使用来说已经绰绰有余了,并且可以非常轻松地在1英寸腕带上进行扫描,并且两侧各留出10%的空间。我仍然对请求的信息感兴趣,尽管有人可以提供洞察力。
答案 0 :(得分:1)
所有字符的相对宽度相等。代码128C允许您将两个数字组合成一个字符,但是如果您需要混合和匹配数字和字母,则需要连续地具有两对或更多对连续数字,以增加开关字符的负担。
一定高度后,垂直尺寸无关紧要,具体取决于扫描仪。
字符的宽度与字符的可扫描性成正比,并取决于生成器的软件,硬件和打印介质。
我以每英寸字符数来测量密度,使用喷墨打印机,每可扫描英寸我可以得到大约15½个字符。将它们包装得更密一些,我怀疑我需要一台更好的打印机,也许是一台更好的扫描仪。
这里是用Code128B以15.6 cpi编码的40个字符串(包括开始,检查和停止在内的43个字符)。
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width="4" height="30"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/ASL/AADeAAAA/gAAAAIAAAD+AAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAh6QEAZKdo54AAAAASUVORK5CYII=" width="4" height="30"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/Af//AAABAAAAAAAAAP8AAAAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAbjUDAlvFFR8AAAAASUVORK5CYII=" width="4" height="30"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAAAAAAAAAAAAP8AAAAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAARTkCAqx1lb4AAAAASUVORK5CYII=" width="4" height="30"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAD/AAAAAQAAAAAAAAD/AAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAZjkDAtle3bIAAAAASUVORK5CYII=" width="4" height="30"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/Af//AAABAAAA/wAAAAEAAAAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAck4DAxY8F10AAAAASUVORK5CYII=" width="4" height="30"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/Af//AAAAAAAAAAAAAAEAAAAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAUUoCA+juoggAAAAASUVORK5CYII=" width="4" height="30"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/AQD/AAD/AAAAAQAAAAAAAAD/AAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAZjkDAtle3bIAAAAASUVORK5CYII=" width="4" height="30"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/Af//AAAAAAAAAQAAAAAAAAAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAUU4CA1nljTgAAAAASUVORK5CYII=" width="4" height="30"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAACCAQAAADLaIVbAAAANUlEQVQIHQEqANX/Af//AAABAAAA/wAAAAEAAAAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAck4DAxY8F10AAAAASUVORK5CYII=" width="4" height="30">
答案 1 :(得分:0)
@Alex DeCamillo,
代码128的ISO / IEC 15417规范定义了一个计算宽度的公式,该公式利用字符数,最窄元素的宽度和所需的静区来计算总宽度。您也可以将其以恒定的宽度使用,以计算最小元素的所需宽度,依此类推。不幸的是,我无法在规范之外找到该公式的文档,因此我不能在不违反规范条款的情况下共享该公式,但是您可以在此处获得该规范:https://www.iso.org/standard/43896.html
Terry Warwick,微软