从dxf文件c#读取坐标
从dxf文件c#读取坐标
提问于 2016-12-14 03:00:02
我正在用c#编写代码，从dxf文件中读取点坐标。我基本上是逐行读取dxf文件，并检查像if( i == "AcdbLine")这样的条件，将点的坐标写入文件中。
AcDbLine
10
0.0
20
0.0
30
0.0
11
700.0
21
0.0
31
0.0
0
LINE它将坐标写入为(0,0,0) (700,0,0)。
当AcDbLine在块中找到时，我现在的问题是忽略它。我想要写一个逻辑，当它在AcDbBlockBegin和AcDbBlockEnd块内时，它会忽略任何AcDbBlockBegin及其相应的点。
AcDbBlockBegin
2
*U1
70
1
10
0.0
20
0.0
30
0.0
3
*U1
1
0
LINE
5
3F0
330
3E9
100
AcDbEntity
8
0
100
AcDbLine
10
-47.22702216883923
20
-0.0131059296418084
30
0.0
11
-19.82207380431916
21
-0.0131059296418084
31
0.0
0
LINE
5
3F1
330
3E9
100
AcDbEntity
8
0
100
AcDbLine
10
22.19765948514734
20
0.0131059296418101
30
0.0
11
47.22702216883923
21
0.0131059296418101
31
0.0
0
ENDBLK
5
3EB
330
3E9
100
AcDbEntity
8
0
100
AcDbBlockEnd对不起，代码太长了，谢谢您的帮助！
回答 1
Stack Overflow用户
发布于 2016-12-14 03:51:37
我已经写了40多年的文本解析器。如果我做不到，没人能做到。尝试下面的代码
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
namespace ConsoleApplication1
{
class Program
{
enum State
{
FIND_BLOCK,
GET_ACDB_LINE,
ACD_BLOCK
}
const string FILENAME = @"c:\temp\test.txt";
static void Main(string[] args)
{
StreamReader reader = new StreamReader(FILENAME);
string inputLine = "";
State state = State.FIND_BLOCK;
int lineRow = 0;
Line newLine = new Line();
while ((inputLine = reader.ReadLine()) != null)
{
inputLine = inputLine.Trim();
if (inputLine.Length > 0)
{
switch (state)
{
case State.FIND_BLOCK :
switch (inputLine)
{
case "AcDbBlockBegin" :
state = State.ACD_BLOCK;
break;
case "AcDbLine":
state = State.GET_ACDB_LINE;
lineRow = 0;
newLine = new Line();
Line.lines.Add(newLine);
break;
}
break;
case State.ACD_BLOCK :
if (inputLine == "AcDbBlockEnd")
{
state = State.FIND_BLOCK;
}
break;
case State.GET_ACDB_LINE :
if (inputLine == "LINE")
{
state = State.FIND_BLOCK;
}
else
{
switch (++lineRow)
{
case 2:
newLine.xLoc = double.Parse(inputLine);
break;
case 4:
newLine.yLoc = double.Parse(inputLine);
break;
case 6:
newLine.zLoc = double.Parse(inputLine);
break;
case 8:
newLine.xVal = double.Parse(inputLine);
break;
case 10:
newLine.yVal = double.Parse(inputLine);
break;
case 12:
newLine.zVal = double.Parse(inputLine);
break;
}
}
break;
}
}
}
}
public class Line
{
public static List<Line> lines = new List<Line>();
public double xLoc { get; set; }
public double xVal { get; set; }
public double yLoc { get; set; }
public double yVal { get; set; }
public double zLoc { get; set; }
public double zVal { get; set; }
}
}
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/41134127
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