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所在平台: Udemy |
课程主页: https://www.udemy.com/course/processing-survey-data-with-gcs-in-arcgis-pro-3/
课程评论：没有评论
课程名称：使用ArcGIS PRO 3处理GCS的调查数据 课程概述： 本课程旨在教授如何在ArcGIS PRO 3中有效地处理和分析调查数据，具体内容包括： 1. **Geodatabase简介**：学习地理数据库（.gdb）的定义及其作为空间数据存储格式的功能。Geodatabase由Esri开发，能够高效地存储、管理和分析地理数据。 2. **Geodatabase与Shapefile的对比**：了解这两种常用数据格式的区别。在大型、复杂数据集管理及需要集成数据的场景中，建议使用Geodatabase；而对于小型数据集或需要简单共享的情况，使用Shapefile更为方便。 3. **从SHP导出到GDB**：学习如何将现有的SHP数据导出至GDB，并进行实践练习。 4. **处理XLS格式的现场调查数据**：在使用ArcGIS PRO 3前，对XLS数据进行清洗，确保列名不含空格等格式标准。 5. **将XLS导出为CSV**：数据清洗后，进行格式转换，将XLS数据导出为CSV格式。 6. **在ArcGIS PRO 3中绘制调查点分布数据**：将CSV数据导入ArcGIS PRO 3，使用经纬度坐标系统（GCS，十进制度DD格式）绘制调查点的分布。 7. **将绘制数据导出到GDB**：将已添加的调查点直接保存回GDB中。 8. **创建空间模型**：基于GDB中存储的调查点数据创建空间模型，如专题分区图、聚类图及热力图，帮助更好地分析和展示数据分布。 9. **在ArcGIS PRO 3中设计布局**：创建多布局设计，将以上空间模型在同一ArcGIS PRO项目文档中呈现。 本课程为参与者提供了系统的知识与实践经验，使其能够熟练处理调查数据并进行有效分析。
1. Introduction to Geodatabase (.gdb).Geodatabase is a spatial data storage format used in Geographic Information Systems (GIS). Developed by Esri, geodatabase functions as a container for storing, managing, and analyzing geographic data efficiently in an organized form. Geodatabase allows users to manage spatial data and its attributes in an integrated manner in one database.2. Geodatabase VS Shapefile.Geodatabase and Shapefile are two data formats that are often used in Geographic Information Systems (GIS) to store spatial data. However, both have significant differences in terms of capability, efficiency, and functionality. The comparison between the two includes storage structure, storage capacity, data and function support, scalability and collaboration, performance and compatibilityChoose Geodatabase if:- You work with large and complex datasets.- Need integrated data management (multi-layer, relations, topology rules).- Using GIS on a large organizational scale.Choose Shapefile if:-You need a simple format to share data with multiple platforms.-Your dataset is small, with simple analysis needs.Although shapefiles are still widely used because of their simplicity, geodatabases offer far superior capabilities for modern GIS needs.3. Export SHP to GDBGDB is capable of creating new features, but on this occasion we will export existing SHP data to GDB, in addition to saving time, we can also practice. Besides SHP, other popular data formats are KML and geoJSON.4. Process field survey data in XLS format, edit and clean dataBefore being processed in ArcGIS PRO 3, field data in XLS format is first cleaned, such as column names that must not contain spaces.5. Export XLS to CSVAfter being cleaned, the XLS data is exported to CSV.6. Plotting survey point distribution data CSV to ArcGIS PRO 3, XY data in Geographic Coordinate System (GCS) in Decimal Degree (DD) formatThe CSV data is then added and plotted to ArcGIS PRO 3. Plotting or displaying the distribution of survey points on the ArcGIS PRO 3 canvas is done using 2 (two) columns/fields combination X/Longitude/Longitude and field Y/Latitude/Latitude as the coordinate points of the earth where the survey respondents are located. The coordinate system used in this course is the Geographic Coordinate System (GCS) with degrees (Degree) and in Decimal Degree/DD format7. Export plotting data to GDBThe distribution of survey points that have been added to the ArcGIS PRO 3 canvas can be directly plotted onto the ArcGIS PRO 3 canvas and directly saved into GDB8. Creating a spatial modelWe will create a spatial model from the distribution of survey points that have been stored in GDB. This spatial model can be in the form of thematic choropleth, cluster and heatmap. The spatial model will provide a clearer picture of how this data is distributed based on the attribute data obtained such as the age spatial model, the monthly turnover spatial model, the annual turnover spatial model and others.9. Designing a Layout in ArcGIS PRO 3.We will create a layout in ArcGIS PRO 3. We create a Multi-layout for each of the spatial models above in one ArcGIS PRO Project Document.
