Software and hardware environment for running the software system:

The software system is divided into network version and stand-alone version.

1,Network version

It is also divided into Internet version and LAN version. The Internet version is suitable for anyone to use online at any place, and the LAN version is suitable for companies and units.

The Internet version of this software system is suitable for a variety of mainstream browsers, preferably equivalent to IE10.0Above version. Computers, mobile phones, virtual machines and total stations can be operated and used online without installation or uninstallation. Large computer screen, easy to operate, recommended.

The DWG digital topographic map generated by the network version should be opened with AutoCAD2006 or higher.

2,Stand-alone version

Suitable for single computer, total station and virtual machine. It is suitable for the 64-bit system of Windws7 and above. The stand-alone version uses AutoCAD2008, 64-bit version. The stand-alone version does not need to be installed. It sends commands directly in the AutoCAD environment and is used as usual.

This software system is intelligent software. Everything that computers can do is left to computers.

1　summary

Specification contour software system V1.0（Referred to as standard contour）It is an intelligent digital topographic map mapping software that does not include only features. The software system automatically draws contour lines and related contents according to the requirements of the national specifications. It mainly includes: curve plotting, first curve plotting, inter-curve plotting, contour plotting of the specified elevation or the specified elevation range, retaining elevation points according to the national regulations, curve elevation annotation, drawing of positive and negative geomorphic slope lines, kilometer grid plotting, mapping of survey area map frame, and building of three-dimensional terrain（DTM）Etc.

There is no limit to the number of points processed by the software system, which is only related to the user's computer hard disk configuration. The higher the configuration, the more points processed and the faster the processing speed. For example, in terms of the networking time of the software system, the host computer is Intel i7-2600 CPUAnd 8G memory, Windows8.1（64position）In the environment, it takes about 7 minutes to complete 2 million points, 13 seconds to complete 100000 points, and 1 minute to complete 10000 points.4Seconds. Please refer to this group of data.

This software system is suitable for the mapping of digital topographic map at any scale, but focuses on more than 1:1The production of ten thousand topographic maps is the most widely used.

There are three main steps to use this software system. That is, setting and uploading（Open）Data file, submission（That is, execute the "one key topographic map" command）Then the digital topographic map is drawn. It is recommended to use the default settings. Because the main setting items in the default settings are preset according to the national standard schema requirements, unless the user has other special purposes, it is generally not recommended to modify them.

The software system generates a standard width of 40cm × It takes about 1 minute to complete the 50cm mountain digital topographic map under normal network conditions. Users should note that the format of the data file is consistent with the format in the setting, that is, the field order corresponds.

Principles for setting:

If the national standard schema has provisions, it shall be set according to the provisions of the unit. If there are no clear provisions, it shall be set according to the provisions of the unit. If the unit has no clear provisions, the operator can set it by himself. However, it is generally OK to use the default settings. However, if it is necessary to generate digital topographic map settings for special purposes, it must be approved by the technical department of the user's unit before modification. The elements that users can set by themselves are the settings for beautification and convenience of internal use in addition to the mandatory provisions of the national regulations, such as the color of the curve, the color of the first curve, the color of the three-dimensional terrain and the size of the grid. However, the contents related to accuracy and specifications must first comply with relevant regulations.

After analysis, some setting items have no meaning to be changed according to national regulations, and such elements are no longer provided in the setting interface. For example, greater than 1/1000Two decimal places shall be reserved for elevation annotation of topographic map, and one decimal place shall be reserved for elevation annotation smaller than this scale; As another example, the length of slope line representing positive and negative landforms is 0.6mmwait.

In addition, the "Expand Point" command, the "Select Point Contour" command and the "Auto Select Contour" command under the "Draw" menu of the stand-alone version are reserved functions of the previous version. Because some old users usually deal with a small amount of data and are used to these old functions, they keep them. Although the functions of these early versions have nothing to do with the number of processing points, they occupy relatively large computer resources. If they are transmitted over the Internet, they will consume more network resources, so the network version does not provide the retention function of these early versions. In addition, among these reserved functions, except for "selecting point contour", all other functions are also hidden in the "one-button topographic map" function.

However, the "Select Point Contour" function has an auxiliary purpose, that is, it can be used to observe the 3D solid model of some special local ground from multiple directions（That is, local DTM observation），It is equivalent to the pre-cut function. That is, for some special ground, small local stereo observation should be carried out quickly, rather than cutting until the whole model is built. Because the generation of large models generally takes a long time.

The "display point" function of the stand-alone version is to display points without repetition, that is, if the coordinate points already exist in the drawing will not be displayed repeatedly. Therefore, users can also save as a special coordinate file for such as Class I and Class II orientation objects, control points, special points, etc., and it is also possible to add and expand points after the digital topographic map is generated.

Although the operation interfaces of the network version and the stand-alone version are different, the generated digital topographic map and 3D DTM are identical.

2　Agreements and requirements for data files

2.1　Data file format

The basic format of data file is:

Roll call	Nx	Ey	H	Pointedness	code	remarks

NxIt means that the due north direction is the positive direction of the vertical axis, and Ey means that the due east direction is the positive direction of the horizontal axis, which is the measurement coordinate system.

Users can adjust to the format they need through the setting interface. The field data arrangement in the data file must be consistent with the format selected in the setting. Among them, the position order of other fields cannot be changed, but can be omitted, except that Nx and Ey can exchange positions left and right to realize two coordinate system modes. For example, it can also be:

	Nx	Ey	H
Roll call	Nx	Ey	H
	Nx	Ey	H	Pointedness
Roll call	Nx	Ey	H		code
	Nx	Ey	H	Pointedness		remarks
...	...	...	...	...	...	...

2.2　Maintain elevation points

The convention for elevation points that must be retained.

If an elevation point must be retained on the digital topographic map, the following agreement shall be followed:

Call Prefix*The number or dot column is*No. indicates that the elevation of the point needs to be reserved. For example:

*20	3884535.898	36576649.136	1498.37
32	3884494.886	36576696.729	1473.391	*

If the point name and elevation need to be preserved at the same time, the corresponding point prefix must be*number. For example:

37	3884494.886	36576696.729	1473.391	*Trigonometric point

The comma after the last data of each line in the data file can be omitted.

In the data file, the distribution of points should be basically random and uniform. Because many points crowded together will have a negative impact on the network construction, as shown in the figure, five or six points or more will be gathered within 1 square millimeter（These points can be called quasi-repeat points）。This kind of situation is often caused by improper comprehensive selection of detailed survey of complex landform. The data file cannot contain duplicate points. The point where these two problems can be handled first by some software is called data preprocessing. The website will then provide a free software for users to choose to use according to their needs.

3　Introduction to network version operation interface

3.1　Sign in

Enter the user name and password, and click "Login". When the login is successful, you can use the standard contour software.

Note: If you have not registered, please register first and then log in.

3.2　Use default settings

Select "Use the original settings of the developer", and then submit the data file to obtain the digital topographic map. Click the link to download it. Continue to look down.

3.3　Upload data file

3.4　Submit

3.5　Use custom settings

Open the setting menu to make necessary settings, but first select the function options you need.

The slope line indicated by the software system refers to the slope line of the positive and negative landforms of the contour line of the independent closed loop of the mountain top and the depression.

A specific contour is one that draws only the specified elevation or the specified elevation range.

There are two kinds of kilometre-network, square grid and small cross network.

The elevation items in a specific elevation contour are separated by commas or spaces or tabs.

On the maximum side length multiple:

According to national regulations, the distance between adjacent topographic points should not exceed 3 cm on the map, which is the maximum allowable side length. The distance between points in the topographic map mapping, which is mainly used to constrain the flat landform, should not be too far. However, for difficult areas, each unit has different grasp, which will be relaxed by 1-2 times. In some cases, it may continue to be relaxed, which should be set according to the requirements of the technical design document of the technical department of the user's unit.

Select the "Invert NxEy" check box to exchange the positions of Nx and Ey left and right, so as to adapt to whether the coordinate system or mathematical coordinates are used in the coordinate data file.

If you select Check, the check column will be added to the data file format. If you deselect, the check column will be removed. Because some users' data files have point names, and some have no point names.

The last setting of user-defined settings will be automatically saved by the system. After the next login, click "Settings", and the last setting will be completely displayed. Users can continue to set according to their own usage or directly click "OK".

3.6　Upload data file and submit

Click "Submit", and soon the download page of digital topographic map will display the link to download digital topographic map. Click to open after downloading, and you can see the complete map with all layers open:

When the "DTM" layer is turned off, it will be displayed as a plane digital topographic map:

Zoom in on the lower left corner:

You can see more clearly by further zooming in on a small piece in the figure above:

3.7　DTM 3D stereo observation

Turn off all layers and only open "DTM" layer to view 3D terrain（DTM）。Observe 3D terrain from four different directions:

Observe the 3D view and remove hidden lines.

You can turn off other layers except DTM layer, use the 3D observation menu command of AutoCAD to view the solid from different directions, and note that it is better to execute the "hidden" command to remove the part of the model behind.

1,First, open a viewpoint of the 3D view, such as the view→3D view→Southeast isometric axis. You can see the 3D view with hidden lines（The object lines blocked by the surface are also displayed）。

2,Eliminating hidden lines: views→Blanking

In AutoCAD, you can perform a series of multi-directional 3D view operations on DTM.

To restore to a plan view: view→3D view→Plan view→World UCS(W)。

4　Introduction to stand-alone operation interface

4.1　main interface

Create or open a clean dwg file, and issue the command "standard contour" at the command prompt. The menu of the software system pops up at the lower right corner of the screen as follows:

Enlarge to indicate "normative contour software system V1.0”Menu:

Including:

4.2　Settings and default settings

The setting menu is the same as the network version. See the following figures:

The "Expand Point" command, the "Select Point Contour" command and the "Auto Select All Contours" command under the drawing menu are reserved functions in earlier versions. However, the "Select point contour" function can be used in advance to observe the 3D solid model of some special local ground from multiple directions（That is, local DTM observation），It is equivalent to the pre-cutting function.

“The "point expansion" function is to expand the point without repetition, that is, if there are already coordinate points in the drawing, they will not be expanded repeatedly.

The functions reserved in the previous version have two uses: menu method and direct command method:

（1）Menu method. Under the menu, you can execute the "Expand Point" command and the "Auto Select All Contours" command.

（2）Direct command method. That is, at the command prompt, issue the "Expand Point" command and the "Select Point Contour" command or the "Auto Select All Contours" command.

4.3　The menu method executes the "rollout" command

Click the "rollout" command to open the rollout setting dialog box:

Click Browse to open the file dialog box:

Select File Open:

Click the "OK" button, and the result is as shown below:

4.4　The menu method executes the "Auto Select All Contours" command

Click "Automatically select all contour lines" to generate digital topographic map. The result is the same as that of the online version of "one-button topographic map".

Click the last command in the drawing, namely "one-button topographic map", which is actually the synthesis of the above two steps, and the generated digital topographic map is the same.

4.5　Direct command method to execute the "Unfold Point" command

Next, use the direct command method to "expand points" and then execute the "select point contour" command.

Create or open a clean dwg file, issue the "expand point" command at the command prompt, browse to the data file to open, and then click OK to get the expand point map. Then, issue the command "Select point contour":

Click "OK" to finish the exhibition.

4.6　Direct command method to execute the "Select point contour" command and local 3D DTM observation

Select a coordinate point and press Enter:

Issue the "Select point contour" command again, and then select a small point to enter:

You can also continue to issue the "Select Point Contour" command to continue to select points and draw local terrain. Here, only two local topographic maps are taken as examples. Here are the observations:

Turn off the "Frame" layer, "Grid" layer and "DTM" layer:

Turn off all layers and open only the "DTM" layer for 3D terrain observation. Two corresponding local digital terrain models are visible:

At this time, open the "curve counting" layer and the "first curve" layer:

Then open the "Elevation Point" layer, and you can see the nesting relationship between them:

4.7　Execute the "one-button topographic map" command

Its menu method and direct command method execute the "one-key topographic map" command, and the digital topographic map effect is the same as the network version, so it will not be repeated.

5　Examples of curves and slope lines

Show all layer diagrams:

After closing the three layers of "Border", "Grid" and "DTM":

The red line is the interval curve. There are several positive geomorphic slope lines and one negative geomorphic slope line in the figure. Enlarged below shows that one of the topographic maps can clearly see a negative geomorphic slope line, a positive geomorphic slope line and an inter-segment curve（red）：

DTM of one observation direction in this example:

6　Examples of specific elevation contours

1350Elevation and 1360 elevation contours:

Zoom in on the lower left corner:

运行本软件系统的软、硬件环境：

本软件系统分网络版和单机版。

1、网络版

又分为互联网版和局域网版。互联网版适合任何人在任何地点网上使用，局域网版适合于公司、单位使用。

本软件系统的互联网版适合多种主流浏览器，最好使用等同于IE10.0以上版本。电脑、手机、虚拟机及全站仪等均可网上操作使用，不需要安装、不存在卸载。电脑屏幕大、操作方便，推荐。

由网络版生成的DWG数字地形图，请用AutoCAD2006以上版本打开。

2、单机版

适合单台电脑、全站仪和虚拟机使用。适合Windws7以上版本，64位系统。单机版使用AutoCAD2008，64位版本。单机版不需要安装，直接在AutoCAD环境下发送命令，像平时操作一样使用。

本软件系统是智能化软件。凡是计算机能做的事情都交给计算机去做。

1　概述

规范等高线软件系统V1.0（简称规范等高线）是仅不包含地物的智能化数字地形图绘图软件。本软件系统按照国家规范图式规格要求自动化绘制等高线及其相关内容。主要包括：计曲线绘制、首曲线绘制、间曲线绘制、绘制指定高程或指定高程范围的等高线、按国家规范规定保留高程点、计曲线高程注记、正负向地貌示坡线绘制、公里网格绘制、测区图框绘制、构建三维地形（即数字地面模型DTM）等。

本软件系统处理的点数没有限制，只与用户的计算机硬盘配置高低有关，配置越高处理的点数就越多，处理速度也越快。例如，就本软件系统的构网时间而言，在电脑主机为Intel i7-2600 CPU和8G内存、Windows8.1（64位）环境下，完成200万个点用时约为7分钟，10万个点用时约为13秒，1万个点用时约为1.4秒。请用户注意参考这组数据。

本软件系统适合于任何比例尺的数字地形图成图，但侧重于大于1:1万地形图的生产，因为这部分地形图用途最广。

本软件系统使用方法主要有三步。即：设置、上传（即打开）数据文件、提交（即执行“一键地形图”命令）后数字地形图就绘制完成了。建议使用默认设置即可。因为默认设置中的主要设置项是按照国家规范图式要求预设好的，除非用户另有特殊用途，一般不建议修改。

由本软件系统生成一标准幅40cm×50cm的山区数字地形图在网络正常的情况下约需1分钟左右完成。用户须注意数据文件的格式与设置中的格式一致，即字段顺序对应。

关于设置的原则：

国家规范图式有规定的按规定执行，没有明确规定的，按所在单位规定设置，所在单位没有明确规定的，作业人员可以自行设置。但一般使用默认设置就可以了。但，如果需要生成有特殊用途的数字地形图的设置，须要经过用户所在单位技术部门同意才能修改。用户所可以自行设置的元素是除了国家规范强制性规定之外的以美化为目的、方便内部用途等的设置，例如计曲线颜色、首曲线颜色、三维地形的颜色和格网大小等。但反涉及到精确度和规格方面的内容都必须首先遵守相关规定。

经过分析，有些设置项按照国家规范规定已没有可改动余地的意义，这类元素就不再提供到设置界面上了。比如，大于1/1000地形图的高程注记保留两位小数，小于该比例尺的高程点注记保留一位小数；再如表示正负向地貌的示坡线长为图上0.6mm等等。

另外，单机版“画图”菜单下的“展点”命令和“选点等高线”命令及“自动全选等高线”命令，是早期版本的保留功能。因为，有的老用户平时处理的数据量不大，习惯了这些老功能，故保留之。这些早期版本的功能虽然也与处理的点数多少无关，但要占据电脑的资源相对较大，若再通过互联网传输则消耗网络资源更大，所以网络版不提供这些早期版本的保留功能。况且，在这些保留功能中，除“选点等高线”外，其它所有功能也都在“一键地形图”功能中隐含了。

但，“选点等高线”功能有一个辅助用途，那就是可以用来从多方位观察某些特殊局部地面的三维立体模型（即局部DTM观察），相当于预先“切块”功能。即，对于一些特殊地面迅速进行小范围局部立体观察，而不是等到整个模型构建完成再去切割。因为，对于大型模型的生成一般需要很长的时间。

单机版的“展点”功能是无重复展点，即若图中已经存在的坐标点不会被重复展绘。因此，对于如一、二类方位物、控制点、特殊点等等，用户也可以保存为一个专门的坐标文件，在数字地形图生成后集中补充展点也是可以的。

网络版与单机版的操作界面虽然不同，但生成的数字地形图和三维DTM是完全一样的。

2　对数据文件的约定和要求

2.1　数据文件格式

数据文件格式的基本形式为：

点名	Nx	Ey	H	点性	编码	备注

Nx表示正北方向为纵轴正向，Ey表示正东方向为横坐标轴正向，此即测量坐标系。

用户可以通过设置界面进行调整到自己需要的格式，数据文件中的字段数据排列必须与设置中选定的格式一致。其中，除了Nx和Ey可以左右交换位置实现两种坐标系模式外，其它字段的位置先后次序不能改变，但可以省略。例如，还可以是：

	Nx	Ey	H
点名	Nx	Ey	H
	Nx	Ey	H	点性
点名	Nx	Ey	H		编码
	Nx	Ey	H	点性		备注
...	...	...	...	...	...	...

2.2　保留高程点

对必须保留的高程点的约定。

如果一个高程点必须要保留在数字地形图上，按以下约定：

点名前缀*号或点性一栏为*号，表示该点的高程需要保留。例如：

*20	3884535.898	36576649.136	1498.37
32	3884494.886	36576696.729	1473.391	*

若需要同时保留点名和高程，则必须在对应的点性前缀以*号。例如：

37	3884494.886	36576696.729	1473.391	*三角点

数据文件中每一行最后一个数据之后的逗号可以省略。

数据文件中，点的分布应基本随机均匀分布。因为很多点挤在一起会对构网造成不利影响，如图上1平方毫米内聚集五六个点甚至更多点（这些点可称为似重复点）。这种情况多发生在复杂地貌细部测量综合取舍不当造成。更不能在数据文件中包含重复点。可以通过一些软件首先处理这两种问题的点，称为数据预处理。本网随后将根据需要视情况提供一个免费的这样的软件共用户选择使用。

3　网络版操作界面介绍

3.1　登录

输入用户名和密码，点击“登陆”，当提示登录成功后，即可进行规范等高线软件的使用。

注：如果还没有注册的用户请先注册，后登陆使用。

3.2　使用默认设置

选中“使用开发商原始设置”，然后提交数据文件即可获得数字地形图，点击链接下载即可。继续往下看。

3.3　上传数据文件

3.4　提交

3.5　使用自定义设置

打开设置菜单进行必要的设置，但首先应选择您所需要的功能选项。

本软件系统所指示坡线是指山顶和凹地独立闭合圈等高线正负向地貌的示坡线。

特定等高线是只绘制指定高程或指定高程范围的等高线。

公里网有两种，方格网和小十字网。

特定高程等高线中的高程项之间用逗号或空格或制表符分隔。

关于最大边长倍数问题：

根据国家规范规定，相邻地形点之间的距离不应超过图上3厘米，这就是最大允许边长。主要用来约束平坦地貌的地形图测绘时点与点的距离不能太远。但对于困难地区，各个单位掌握不一，会放宽1～2倍，个别情况下还可能会继续放宽，这要依据用户所在单位技术部门的技术设计书的要求进行设置。

选中“颠倒NxEy”检查框可以左右交换Nx和Ey两者的位置，以便适应坐标数据文件中使用的是测量坐标系还是数学坐标。

选中“有点名”在会在数据文件格式中添加点名列，反选中则去掉点名。因为，有的用户的数据文件中有点名列，有的没有点名列。

用户自定义设置的上一次设置会被本系统自动保留下来，下一次登陆后，点击“设置”，上一次的设置完全呈现出来，用户可以根据自己的使用情况继续设置或直接点击“确定”。

3.6　上传数据文件与提交

点击“提交”，很快数字地形图的下载页面将呈现下载数字地形图链接，点击下载后打开，可见所有图层都处于打开状态下的完整图面：

关掉“DTM”层后显示为平面数字地形图：

放大左下角的图：

进一步放大上图中的一小块可以看得更清楚些：

3.7　数字地面模型DTM三维立体观察

关掉所有层，只打开“DTM”层，可以查看三维地形（数字地面模型DTM）。从四个不同方向观察三维地形：

观察三维视图注意要消除隐藏线。

用户可以关掉除DTM层的其它层，利用AutoCAD的三维观察菜单命令从不同的方向观察立体，并注意最好执行一下“消隐”命令去掉遮挡在后面的模型部分。

1、首先打开三维视图的一个视点，如：视图→三维视图→东南等测轴。可以看到三维视图，其中包含有隐藏线（是被曲面挡住的对象线也显示出来了）。

2、消除隐藏线：视图→消隐

在AutoCAD中可以对DTM进行一系列多方位三维视图操作。

要想恢复到平面视图：视图→三维视图→平面视图→世界UCS(W)。

4　单机版操作界面介绍

4.1　主界面

新建或打开一个干净的dwg文档，在命令提示符下发“规范等高线”命令，则在屏幕右下角弹出该软件系统的菜单如下：

放大表示“规范等高线软件系统V1.0”菜单：

其中：

4.2　设置与默认设置

设置菜单与网络版设置内容相同。见下列各图：

画图菜单下的“展点”命令和“选点等高线”命令及“自动全选等高线”命令是早期版本的保留功能。但，“选点等高线”功能可以预先用来从多方位观察某些特殊局部地面的三维立体模型（即局部DTM观察），相当于预先切块功能。

“展点”功能是无重复展点，即若图中已经有的坐标点不会被重复展绘。

早期版本保留的功能，其用法有菜单法和直接命令法两种：

（1）菜单法。在菜单下可执行“展点”命令和“自动全选等高线”命令。

（2）直接命令法。即，在命令提示符下发“展点”命令和“选点等高线”命令或“自动全选等高线”命令。

4.3　菜单法执行“展点”命令

点击“展点”命令，打开展点设置对话框：

点击浏览按钮打开文件对话框：

选择文件打开：

点击“确定”按钮，展点结果如下图所示：

4.4　菜单法执行“自动全选等高线”命令

点击“自动全选等高线”后数字地形图生成。其和网络版“一键地形图”的结果是一样的。

点击画图中最后一个命令，即“一键地形图”，实际上是上述两步的合成，生成的数字地形图相同。

4.5　直接命令法执行“展点”命令

下面用直接命令法“展点”后执行“选点等高线”命令。

新建或打开一个干净的dwg文档，在命令提示符发“展点”命令，浏览到数据文件打开，然后点击确定，得到展点图。接着，发“选点等高线”命令：

点击“确定”即可完成展点。

4.6　直接命令法执行“选点等高线”命令及局部三维DTM观察

在其中选择一块坐标点后回车：

再次发“选点等高线”命令，再选择一小块点回车：

还可以继续发“选点等高线”命令继续选点绘制局部地形，这里仅以两个局部地形图为例。下面是观察：

关掉“图框”层、“网格”层和“DTM”层：

关掉所有层，仅打开“DTM”层进行三维地形观察，可见两个对应的局部数字地面模型：

这时，打开“计曲线”层和“首曲线”层：

再打开“高程点”层，可见相互之间的套合关系：

4.7　执行“一键地形图”命令

其菜单法与直接命令法执行“一键地形图”命令的数字地形图效果与网络版相同，故不再赘述。

5　间曲线、示坡线例子

显示所有层图：

关闭“图框”、“网格”和“DTM”三个层后：

其中的红色线为间曲线。图中有几个正向地貌示坡线和一个负向地貌示坡线。下面放大表示其中一块地形图可看清一个负向地貌示坡线和一个正向地貌示坡线以及一段间曲线（红色）：

本例其中一个观察方向的数字地面模型DTM：

6　特定高程等高线例子

1350高程和1360高程等高线：

放大左下角图：