快速切剖面方法

剖面图地形线的快速切制方法

――王得志 2010.1.16

以下切制剖面方法，提高效率10倍，准确无误。

一、采集高程点

1、在地形地质图上把勘探线与地形线的交点浏览一下：两起及终点点标高、最低点标高、最高点标高，有无山脊或沟谷。

2、使用电子表格把高程点全部采集出来。如表1

起点 999.5

交点1 1000

交点2 1002

交点3 1004

交点4 1006

交点5 1008

交点6 1010 交点7 1012 交点8 1014 交点9 1016 交点10 1018 交点11 1020 交点12 1022 交点13 1024 交点14 1026 交点15 1028 逐 渐 升 高

交点16 1030 山脊 交点17 1028

交点18 1026

交点19 1024

交点20 1022 交点21 1020 交点22 1018 交点23 1016 交点24 1014 交点25 1012 交点26 1014 终点 1005 逐 渐 下 降

表2

起点 999.5 交点1 998 交点2 996 交点3 994 交点4 992 交点5 990 交点6 988 交点7 986 交点8 984 交点9 982 交点10 980 逐 渐 下 降

交点11 978

交点12 976

交点13 974

交点14 972

交点15 970

交点16 968 谷底 交点17 970

交点18 972

交点19 974

交点20 976 交点21 978 交点22 980 交点23 982 交点24 984 交点25 986 交点26 988 终点 999.5 逐 渐 升 高

三、采集坐标

1、采用夏冰地质插件起动MAPGIS67软件

⑴采用折线工具沿勘探线（或剖面线）点击端点、交点1、交点2、……终点，结束。

⑵点击菜单栏“1辅助工具”，1辅助工具――导入导出功能――导出线拐点坐标，选择刚刚划好的折线，根据对话框，保存文件。

⑶打开保存的文件。如

点号,X,Y

0,2398488.31849004,266690.99753911,

1,2398489.15185325,266691.67938174,

2,2398490.43977820,266692.81578611,

3,2398491.65194287,266693.72490961,

4,2398492.86410753,266694.78555369,

5,2398493.69747074,266695.46739632,

6,2398495.89451920,266697.13412273,

7,2398498.01580736,266698.64932856,

8,2398500.21285582,266700.54333586,

9,2398502.10686311,266702.05854169,

10,2398503.39478807,266703.27070635,

11,2398504.68271302,266704.10406956,

12,2398506.19791886,266705.31623423,

13,2398507.03128206,266706.07383714,

14,2398507.94040556,266706.98296064,

15,2398509.07680994,266707.66480327,

16,2398510.59201577,266708.87696793,

17,2398512.41026277,266710.39217376,

18,2398513.60151529,266711.35863617,

19,2398514.94015721,266712.63353324,

20,2398515.76884031,266713.33472663,

21,2398517.04373738,266714.19528215,

22,2398518.22301717,266715.31081709,

23,2398519.68914880,266716.39447960,

24,2398520.64532160,266717.41439726,

25,2398521.63336683,266718.05184579,

26,2398522.97200876,266719.03989102,

27,2398523.99192641,266720.02793625,

转换成表格

0 2398488.31849004 266690.99753911

1 2398489.15185325 266691.67938174

2 2398490.43977820 266692.81578611

3 2398491.65194287 266693.72490961

4 2398492.86410753 266694.78555369

5 2398493.69747074 266695.46739632

6 2398495.89451920 266697.13412273

7 2398498.01580736 266698.64932856

8 2398500.21285582 266700.54333586

9 2398502.10686311 266702.05854169

10 2398503.39478807 266703.27070635

11 2398504.68271302 266704.10406956

12 2398506.19791886 266705.31623423

13 2398507.03128206 266706.07383714

14 2398507.94040556 266706.98296064

15 2398509.07680994 266707.66480327

16 2398510.59201577 266708.87696793

17 2398512.41026277 266710.39217376

18 2398513.60151529 266711.35863617

19 2398514.94015721 266712.63353324

20 2398515.76884031 266713.33472663

21 2398517.04373738 266714.19528215

22 2398518.22301717 266715.31081709

23 2398519.68914880 266716.39447960

24 2398520.64532160 266717.41439726

25 2398521.63336683 266718.05184579

26 2398522.97200876 266719.03989102

27 2398523.99192641 266720.02793625 删除两列

2398488.31849004 266690.99753911

2398489.15185325 266691.67938174

2398490.43977820 266692.81578611

2398491.65194287 266693.72490961

2398492.86410753 266694.78555369

2398493.69747074 266695.46739632

2398495.89451920 266697.13412273

2398498.01580736 266698.64932856

2398500.21285582 266700.54333586

2398502.10686311 266702.05854169

2398503.39478807 266703.27070635

2398504.68271302 266704.10406956

2398506.19791886 266705.31623423

2398507.03128206 266706.07383714

2398507.94040556 266706.98296064

2398509.07680994 266707.66480327

2398510.59201577 266708.87696793

2398512.41026277 266710.39217376