Leica Infinity: Feature Coding
有限元分析是什么ture coding?
When surveyors collect field data, they document the position and details of requiredfeatures. Everything can be considered a feature: a building, a fence, a road, a bench, or even a tree. When measurements are made, the surveyor records the details of the features by entering codes and attributes, which are stored with the measured point.
The代码categorise and identify the feature, describing what it is in the field; for example, a single point can be coded to represent a tree or gully and few points can be coded to represent a road or fence. A special code property called linework is used to join the points with a line to create a linear feature like a building or wall.
属性are linked to a code and are used to describe the feature and give additional details. For example, if your coded feature was a wall, the attributes you use might include its material type, height or width.
Using feature coding saves time and increases productivity both in the field and the office by having features described and for visualizing the data in the software. This is helping with QC of collection of features and help the data processing step before sending data to CAD or GIS solutions.
The typical feature coding workflow in Infinity
Working with feature coding requires some data preparation and processing in the office before and after measuring in the field. The typical workflow is:
Pre-defining a library of codes and features style- 首先，用户必须创建代码表，该代码表正在管理用于分配给测量数据的代码，属性和样式信息列表。该表应用于项目中导入或创建的数据。
创建一个编号师- 从代码表中，用户可以导出一个代码师，以与字段软件Captivate，Viva，System1200，Icon和Zeno一起使用
创建一个编号师- 从代码表中，用户可以导出一个代码师，以与字段软件Captivate，Viva，System1200，Icon和Zeno一起使用
Data collection– the codelist is transferred to the field software and it should be used to define features with the measurements in the field job.
Office data processing- 将收集的数据导入具有编码功能的无限项目。代码表将正确的样式适用于导入的字段数据。
This workflow describes all the steps for efficient field collection. Using feature coding makes verifying the job easier in the office. To support individual customer’s visual styles, a user can create several different Code tables using the same library of codes but apply different feature definitions and styles.
Using Code tables in Infinity
如何使用代码表无限支持谁le process of feature coding?
Using a Code table to create a codelist
创建一个编号师before doing the fieldwork is not mandatory but doing it within the field software can be time consuming and awkward with limited functionality. The best practice is to predefine a list of codes that is suitable for the type of work. The same codelist should be used by all field crews.
创建代码时，用户定义了代码类型和线性功能的样式。Infinity支持所有类型的代码，包括点，线，区域和现有系统1200和Leica Viva用户使用的免费代码。
有两种用于特征编码的方法，主导代码分配给点，线和区域或免费代码。自由代码与主题代码不同，因为它们纯粹是与时间相关的信息，并且在现场测量之间记录了。记录每个免费代码的时间戳，允许按时间顺序排列的导出点和免费代码用于第三方映射软件。
对于每个代码，用户可以输入一个或多个属性，并定义是否应自动提示它们输入。可以通过许多方式定义属性，例如，作为简单的文本字段，选择列表，可供选择的范围或默认值。
用户不一定需要从头开始创建编号师，因为他们可以使用现有数据自动填充新的代码库。这可以通过导入现有的编码师，leica dbx作业，flexline cls文件，ESRI地理数据库或hexml文件来完成。
The benefits of using a code table in Infinity are as follows:
- Quick and efficient way to create a library of codes
- Easy way to re-organize, update or join lists of codes
- The same codes can be exported to different instruments types or formats
- A Code table can be easily shared between users
VIDEO 1:Watch the video to learn how to create a code table.
Using a Code table to style features
在CAD软件中创建图形时，操作员使用几何对象来表示特征。例如，某个CAD块代表树或路标或特殊线样式来区分道路和路缘。操作员还为相关功能定义了类似的样式，并将它们分组在相同的层中，从而可以对整个功能进行快速修改。
Infinity automatically applies the required coding style during the data import. This means the user can view the data in a format that is already styled very closely to the finished deliverable straight after import.
如何设置代码表以提供样式？用户可以用所有必需的层，块和线样式导入预定义的CAD文件。可以从DXF/DWG文件中提取图层和块。可以使用层，以便使用相同样式将编码功能分组在一起。
A block can be used to represent a feature by a simple geometry object. This includes 2D or 3D features. By assigning the block to the code, the code attributes can be used to scale the block to represent the feature in its true relative size. For example, the attributes can be used to scale a tree block, so that the canopy size is drawn correctly.
The line styles can be imported from the .LIN files, this way a line can be represented as a pattern of dashes, dots, text or symbols.
Watch the videos to learn how to use blocks, layers and custom line styles
VIDEO 2:How to use blocks and layers
VIDEO 3:How to use custom line styles
Feature processing in Infinity
无穷大的功能处理是一项直接的任务。用户只需要创建一个项目，附加代码表并导入数据。在3D视图中，这些点会自动用块绘制，线路使用定义样式，并且功能属于分配的图层。
Once a Code table is attached to the project, the entire content, including the code and style information, is included in the project. This means that if the project is transferred to another user, there is no need to provide additional files. If the position of the data in the project needs to be updated due to any processing tasks like GNSS or TPS processing, the features will be updated automatically without the need of further re-processing.
If a user needs to edit codes within a project, this can also be done using the Project Code Manager where one can find the same editing capabilities that are available in the Code Manager, such as being able to edit layers, blocks and line styles. However, any edits made in the Project Code Manager will only apply to the current project and automatically update the data in the project.
In the Project Code Manager, the user also sees any new codes that have been created in the field. The new codes can be easily merged into the Code Table’s codes and styles.
Infinity offers a range of tools allowing a user to correct any data issues. Problems can be due to incorrect coding, typing mistakes or obstacles while observing features. A few examples would be when a code was not assigned to a point or a wrong attribute was entered, or an incorrect point was measured.
The feature editing menu contains options to Join, Break, Delete, Split or Curve line features. Missing features can be easily added by creating new points, lines and assigning codes.
Thematic features can be easily exported to CAD software. Before an export, the user can define in the Layer Manager which survey and thematic layers must be sent to CAD. The export settings can be saved to a template file for future references. Afterwards the data and features can be exported by selecting *.dwg or *.dxf format type.
VIDEO 4:观看视频学习如何处理
Author
Monika Bodziak
Product Engineer, Leica Infinity
Leica Infinity
Online Learning
Leica Geosystems has developed an online learning platform, to further educate customers to use the functionality of their instruments to the maximum.
Leica Geosystems has developed an online learning platform, to further educate customers to use the functionality of their instruments to the maximum.
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