📄 坐标转换问题.htm
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<p class=MsoNormal style='text-indent:15.75pt;mso-char-indent-count:1.5'><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>计算四参数</span></p>
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<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US><span style='mso-tab-count:1'> </span></span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>本软件使用说明：</span></p>
<p class=MsoNormal><span lang=EN-US><span style='mso-tab-count:1'> </span></span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>本软件采用文件化管理，用户可以将一种转换作为一个文件保存下来，下次使用时从文件菜单中选择打开这个文件来调用所有已有的转换参数。</span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US><span style='mso-tab-count:1'> </span></span><b
style='mso-bidi-font-weight:normal'><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>实例：</span><span
lang=EN-US><o:p></o:p></span></b></p>
<p class=MsoNormal style='text-indent:21.0pt'><b style='mso-bidi-font-weight:
normal'><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>转换要求：</span><span lang=EN-US><o:p></o:p></span></b></p>
<p class=MsoNormal style='text-indent:21.0pt'><span style='font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>用户在一个佛山测区内使用</span><span
lang=EN-US>RTK GPS</span><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>接收机接受了一些点的</span><span
lang=EN-US>WGS-84</span><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>的坐标</span><span lang=EN-US>,</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>现在希望将其转换为北京</span><span lang=EN-US>54</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>和佛山坐标系下的坐标。用户有佛山测区的一些控制点，这些控制点有</span><span lang=EN-US>WGS-84</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>坐标，也有北京</span><span lang=EN-US>-54</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>坐标也有佛山坐标。</span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><b style='mso-bidi-font-weight:
normal'><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>分析：</span><span lang=EN-US><o:p></o:p></span></b></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>WGS-84</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>坐标和北京</span><span lang=EN-US>54</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>坐标是不同两个椭球的坐标转换，所以要求得三参数或七参数，而北京</span><span lang=EN-US>54</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>和佛山坐标都是同一个椭球，所以他们之间的转换是地方坐标转换，需要求得地方转化四参数，因为要求得到的北京</span><span
lang=EN-US>54</span><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>是平面坐标所以需要设置投影参数。：</span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><b style='mso-bidi-font-weight:
normal'><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>步骤：</span><span lang=EN-US><o:p></o:p></span></b></p>
<p class=MsoNormal style='margin-left:39.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo2;
tab-stops:list 39.0pt'><![if !supportLists]><span lang=EN-US style='mso-fareast-font-family:
"Times New Roman"'><span style='mso-list:Ignore'>1．<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>新建坐标转换文件，便于下次使用转换是不用重新输入，直接打开即可。</span></p>
<p class=MsoNormal style='margin-left:21.0pt'><span lang=EN-US><!--[if gte vml 1]><v:shape
id="_x0000_i1026" type="#_x0000_t75" style='width:368.25pt;height:234pt'>
<v:imagedata src="坐标转换问题.files/image003.jpg" o:title="新建坐标转换"/>
</v:shape><![endif]--><![if !vml]><img width=491 height=312
src="坐标转换问题.files/image003.jpg" v:shapes="_x0000_i1026"><![endif]></span></p>
<p class=MsoNormal style='margin-left:21.0pt'><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-left:39.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo2;
tab-stops:list 39.0pt'><![if !supportLists]><span lang=EN-US style='mso-fareast-font-family:
"Times New Roman"'><span style='mso-list:Ignore'>2．<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>设置投影参数。</span></p>
<p class=MsoNormal style='margin-left:81.0pt;text-indent:3.0pt'><span
lang=EN-US><!--[if gte vml 1]><v:shape id="_x0000_i1027" type="#_x0000_t75"
style='width:255pt;height:192pt'>
<v:imagedata src="坐标转换问题.files/image004.jpg" o:title="投影设置"/>
</v:shape><![endif]--><![if !vml]><img width=340 height=256
src="坐标转换问题.files/image004.jpg" v:shapes="_x0000_i1027"><![endif]></span></p>
<p class=MsoNormal style='margin-left:39.0pt'><span lang=EN-US><span
style='mso-tab-count:1'> </span></span></p>
<p class=MsoNormal style='margin-left:39.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo2;
tab-stops:list 39.0pt'><![if !supportLists]><span lang=EN-US style='mso-fareast-font-family:
"Times New Roman"'><span style='mso-list:Ignore'>3．<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>用一个已知点（</span><span
lang=EN-US>WGS84</span><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>坐标和北京</span><span lang=EN-US>54</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>坐标），计算不同椭球转换的三参数（或七参数）。</span></p>
<p class=MsoNormal style='margin-left:81.0pt;text-indent:3.0pt'><span
lang=EN-US><!--[if gte vml 1]><v:shape id="_x0000_i1028" type="#_x0000_t75"
style='width:226.5pt;height:163.5pt'>
<v:imagedata src="坐标转换问题.files/image005.jpg" o:title="三参数计算"/>
</v:shape><![endif]--><![if !vml]><img width=302 height=218
src="坐标转换问题.files/image005.jpg" v:shapes="_x0000_i1028"><![endif]></span></p>
<p class=MsoNormal style='margin-left:39.0pt'><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-left:39.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo2;
tab-stops:list 39.0pt'><![if !supportLists]><span lang=EN-US style='mso-fareast-font-family:
"Times New Roman"'><span style='mso-list:Ignore'>4．<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>确定转换参数。</span></p>
<p class=MsoNormal style='margin-left:84.0pt;text-indent:21.0pt'><span
lang=EN-US><!--[if gte vml 1]><v:shape id="_x0000_i1029" type="#_x0000_t75"
style='width:186.75pt;height:222.75pt'>
<v:imagedata src="坐标转换问题.files/image006.jpg" o:title="转换参数"/>
</v:shape><![endif]--><![if !vml]><img width=249 height=297
src="坐标转换问题.files/image006.jpg" v:shapes="_x0000_i1029"><![endif]></span></p>
<p class=MsoNormal style='margin-left:21.0pt'><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-left:39.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo2;
tab-stops:list 39.0pt'><![if !supportLists]><span lang=EN-US style='mso-fareast-font-family:
"Times New Roman"'><span style='mso-list:Ignore'>5．<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>打开七参数转换，完成</span><span
lang=EN-US>WGS84</span><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>到北京</span><span lang=EN-US>54</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>的转换。</span></p>
<p class=MsoNormal style='margin-left:21.0pt'><span lang=EN-US><!--[if gte vml 1]><v:shape
id="_x0000_i1030" type="#_x0000_t75" style='width:367.5pt;height:233.25pt'>
<v:imagedata src="坐标转换问题.files/image007.jpg" o:title="北京54"/>
</v:shape><![endif]--><![if !vml]><img width=490 height=311
src="坐标转换问题.files/image007.jpg" v:shapes="_x0000_i1030"><![endif]></span></p>
<p class=MsoNormal style='margin-left:21.0pt'><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-left:39.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo2;
tab-stops:list 39.0pt'><![if !supportLists]><span lang=EN-US style='mso-fareast-font-family:
"Times New Roman"'><span style='mso-list:Ignore'>6．<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>利用两个已知点（北京</span><span
lang=EN-US>54</span><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>坐标和佛山坐标），计算同一个椭球的地方坐标转换（四参数）。</span></p>
<p class=MsoNormal style='margin-left:63.0pt;text-indent:21.0pt'><span
lang=EN-US><!--[if gte vml 1]><v:shape id="_x0000_i1031" type="#_x0000_t75"
style='width:252pt;height:150.75pt'>
<v:imagedata src="坐标转换问题.files/image008.jpg" o:title="四参数计算"/>
</v:shape><![endif]--><![if !vml]><img width=336 height=201
src="坐标转换问题.files/image008.jpg" v:shapes="_x0000_i1031"><![endif]></span></p>
<p class=MsoNormal style='margin-left:21.0pt'><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-left:39.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo2;
tab-stops:list 39.0pt'><![if !supportLists]><span lang=EN-US style='mso-fareast-font-family:
"Times New Roman"'><span style='mso-list:Ignore'>7．<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>确定转换参数</span></p>
<p class=MsoNormal style='margin-left:63.0pt;text-indent:21.0pt'><span
lang=EN-US><!--[if gte vml 1]><v:shape id="_x0000_i1032" type="#_x0000_t75"
style='width:257.25pt;height:186.75pt'>
<v:imagedata src="坐标转换问题.files/image009.jpg" o:title="地方坐标转换"/>
</v:shape><![endif]--><![if !vml]><img width=343 height=249
src="坐标转换问题.files/image009.jpg" v:shapes="_x0000_i1032"><![endif]></span></p>
<p class=MsoNormal style='margin-left:21.0pt'><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-left:39.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo2;
tab-stops:list 39.0pt'><![if !supportLists]><span lang=EN-US style='mso-fareast-font-family:
"Times New Roman"'><span style='mso-list:Ignore'>8．<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>同时打开七参数和四参数。完成</span><span
lang=EN-US>WGS-84</span><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>到佛山坐标的转换。</span></p>
<p class=MsoNormal style='margin-left:21.0pt'><span lang=EN-US><!--[if gte vml 1]><v:shape
id="_x0000_i1033" type="#_x0000_t75" style='width:366.75pt;height:233.25pt'>
<v:imagedata src="坐标转换问题.files/image010.jpg" o:title="佛山坐标"/>
</v:shape><![endif]--><![if !vml]><img width=489 height=311
src="坐标转换问题.files/image010.jpg" v:shapes="_x0000_i1033"><![endif]></span></p>
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