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110 lines
2.8 KiB
110 lines
2.8 KiB
namespace B3ButcherWeightClient.Data
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{
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public class Xk3190A9DataFormat : DataFormatBase {
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public override int DataLength {
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get { return 12; }
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}
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public override char Beginchar {
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get { return (char)0x02; }
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}
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public override char Endchar {
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get { return (char)0x03; ; }
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}
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public override short Bufsize {
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get { return 36; }
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}
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public override string ParseData(string buf, out bool isStatic) {
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string weight;
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// 小数位数0-4
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int dot = (short)(0x0F & buf[8]);
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weight = buf.Substring(2, 6).Trim();
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// insert dot
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weight = InsertDot(weight, dot);
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isStatic = true; // 默认 为 稳定
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// buffer[1] 符号位
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if (buf[1] == '-') {
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weight = weight.Insert(0, "-");
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}
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return weight;
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}
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public override bool ParseAscii(string buf, out string weight, out bool isStatic) {
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isStatic = false;
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weight = FindDataFrame(buf, DataLength );
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if (string.IsNullOrEmpty(weight)) {
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return false;
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}
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weight = ParseData(weight, out isStatic);
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return true;
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}
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private static string InsertDot(string weight, int dotBits) {
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string str = weight.TrimStart(new[] {
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'0'
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});
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str = str.Trim();
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if (dotBits > 0) {
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//str = str.Insert(str.Length - dotBits, ".");
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if (string.IsNullOrEmpty(str)) {
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str = "0";
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str = str.Insert(str.Length, ".");
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for (int i = 0; i < dotBits; i++) {
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str = str.Insert(str.Length, "0");
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}
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} else
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str = str.Insert(str.Length - dotBits, ".");
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}
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if (str.IndexOf(".") == 0) {
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str = str.Insert(0, "0");
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}
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return str;
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}
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public override bool ParseAscii(string buf, out string weight, out bool isStatic, out string subStr) {
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isStatic = false;
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weight = FindDataFrame(buf, DataLength , out subStr);
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if (string.IsNullOrEmpty(weight)) {
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return false;
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}
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weight = ParseData(weight, out isStatic);
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return true;
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}
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// 根据开始字符找出 一个完整的数据帧
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public string FindDataFrame(string buf, int fSize , out string subStr) {
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var bufSize = buf.Length;
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subStr = "";
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int index = buf.IndexOf(Beginchar); // 查找开始字符的索引
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if (index < 0 || (index + fSize) > bufSize) {
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return string.Empty;
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}
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string data = buf.Substring(index, fSize);
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subStr = buf.Substring(index + fSize);
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// 检查结束字符
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if (data[fSize - 1] != Endchar) {
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return string.Empty;
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}
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return data;
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}
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}
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}
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