DIN 18202 Workflow with BuildIT Construction

Tutorial Download

If you would like to download the file used in this article, download the accompanying Training Data and extract its contents to a folder on your PC.

Define Sample Lines

• The DIN 18202 analysis in BuildIT Construction requires two lines which represent the area to analyze.
  • These lines should:
    • Be perpendicular
    • Encompass the area to analyze
  • A good example is shown below. The area that will be analyzed will be the area in red. Areas without points or sparse points will be ignored.
    
• To define the sample lines, use the Construct: Line command . Remember, the lines direction is set from the start to end point selected. For this exercise, create two lines as shown.
• If there are multiple test areas, simply change the name of the lines to represent a different area.
  • For example, naming the sections as “section1-1” and “section2-2” will run the analysis on the two areas.
    
• If the lines are drawn in the wrong direction and the analysis run on the wrong area, you can simply Undo before the analysis. You can display the lines direction by selecting the lines and changing the Show direction vector in the Curve manager.
  
• You can also reverse the direction of the line if necessary by using Edit: Curves: Reverse
  

Run the DIN 18202 Analysis

• Start the analysis command by selecting the DIN 18202 Analysis command.
  
• Select the point cloud and the created lines created to analyze.
  
• For Tolerance Group, select Group 1 for this example.
  • The tolerance group comes from Table 3 of the standard, which lists the tolerances based on grid sample size. Depending on what sampling resolution is input in the next step, the tolerancing adapts.
    
• Set the Sampling resolution to 300mm.
  • The sampling resolution refers to the size of each individual grid for the floor. Values suggested in Table 3 of the standard include 0.1m, 1m, 4m, 10m, and 15m. The selection is at the discretion of the inspector.
• Set the Contact patch diameter to 50mm.
  • Contact patch diameter represents the search distance at each sample point that the software uses to determine the measurement from the scan data.
• Select Apply to run the command.
  
  
  
  Note: In the messages, the percentage of the floor which is in tolerance will be displayed along with the maximum and minimum grid values. This will also be represented in the report.

Create a Report

To create a report, simply select the Run Report command in the Report manager.