Different types of surveying tools require compatible software to transfer data points for analysis. Total stations use distance and angle readings, GPS creates 3D images, and portable data collectors require manual recording. All software can print maps and have modules for enhanced mapping capabilities.
Surveying software varies in type, depending on the surveying tool that collected the data. Instruments, such as total stations, global positioning systems (GPS), and portable data collectors, require a uniquely compatible land surveying software package to move data points from your mobile device to your computer for analysis. Surveyors can build and manipulate the data as needed within the software program to create a visual display of a landform in two or three dimensions.
Total station instruments record data points based on distance and angle readings. The instrument connects to a computer via wired or wireless capabilities, effectively copying data points into the surveyor’s software. Depending on the characteristics of the software, the data points entered will create a two or three dimensional image of the terrain contours. Typically, the surveyor can shift the computer view to view the elevation of the land from above or from the side, allowing for complex analysis of the area covered.
GPS surveyor software is commonly used for extremely large land formation data collection, such as several square miles. The triangulation method of collecting data points using GPS allows surveyor software to create a three-dimensional image, rather than a flat two-dimensional view. Software users should be aware that civilian GPS has pinpoint inaccuracies, generating an error that can range from a few inches (centimeters) or even a whole foot (meter). Only proprietary military GPS has extremely accurate data collection.
Portable data collectors are the most manual of all tools, requiring the surveyor to be physically at each data point and record the location. Surveyor software for portable data collectors needs to retrieve the computer specific file and download it to your desktop or laptop computer after collection. Similar to total station data, data points collected with the handheld instrument can be mapped in two or three dimensions.
All surveyor software can print the computer-generated map for a hard copy, especially if a surveying team needs to go back into the field to check for any confusing or missing points. Most software has several modules that can be added to enhance the basic land mapping capability. Maps can be split in half, allowing for a computer-generated building to be added in the middle section. This supplemental software helps surveyors and building engineers understand how a structure will arise from the natural land masses on a construction site.
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