[讨论]测绘制图中点状地物的类型及其绘制

莫名发表于 2004-3-25 21:15:00

测绘制图中点状地物有那些类型？它们在AutoCAD中分别怎样绘制？

gyl 发表于 2004-3-25 23:36:00

点状地物一般用图块来表示。设计图块时要严格依照图式来确定图块的形状、尺寸、线粗等属性及符号定位点，放置时注意插入的位置，依照比例尺进行图块缩放，如果是依照真方向表示的地物还要旋转一定角度。按照国家标准对符号进行编码，并利用图块名称来表示编码，有利于地物属性管理和地图格式转换。

myfreemind 发表于 2004-3-27 13:17:00

用图块来做处理比较方便

莫名发表于 2004-4-17 23:13:00

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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt">点<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p>

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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt">固定方向点<o:p></o:p>

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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT face="Times New Roman">P1<o:p></o:p></FONT>

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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt">水塔、路灯<o:p></o:p>

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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt">高程点（单属性并注记）<o:p></o:p>

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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT face="Times New Roman">P2<o:p></o:p></FONT>

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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt">高程点<o:p></o:p>

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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt">有向点<o:p></o:p>

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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt">水流方向<o:p></o:p>

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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt">控制点（多属性并注记）<o:p></o:p>

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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT face="Times New Roman">P4<o:p></o:p></FONT>

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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt">控制点<o:p></o:p>

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lockmyeye 发表于 2004-5-8 01:24:00

也有少部分使用形（SHAPE)，这会使得显示速度更高。

myfreemind 发表于 2004-5-9 22:51:00

独立地物用形很不错！

njcknfy 发表于 2004-11-29 21:13:00

南宁规划局的要求点状符号全部用形(SHAPE)表示，形名称和他们的GIS数据入库有关系，其它地方用块(BLOCK)的较多，南方CASS的高程点用块，而广州开思的高程点就用点（POINT）表示。

lisong007 发表于 2004-12-4 09:03:00

可以通过下面方式实现：

用block

用shx

用语言

liub1979 发表于 2004-12-9 22:34:00

都行

hanyu_gis 发表于 2004-12-10 08:49:00

各有优劣：用形，显示速度快，但你交成果时必须也把形文件提交给客户；用块，显示速度慢，但不用另外提交块文件，只把线涉及的形文件提交即可。呵，现在机器配置都很高，速度对我们来说不成问题了。原来我在一个单位没有矢量化软件，都是我做的形文件，TMD，累得我半死！！！

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[讨论]测绘制图中点状地物的类型及其绘制