In MiTS, users are allowed to import the survey points data and platforms from drawing files. Once the survey points data and platforms are available, cut and fill volumes can be calculated by comparing these elevations to another base surface.

Issue Encountered #

From the cut and fill results obtained, have you ever encountered discrepancies that make you question the accuracy of the survey points elevation imported? Or you might have doubted whether the software reads the survey points data and platforms as intended?

So now, you might wonder if there is any way for you to check the validity of the imported data. Manually checking for each survey point at the spread input will be time-consuming and inefficient. If you’re looking for a more efficient way to verify survey points without checking each one manually, this article will guide you through the process.

Methods to Verify #

Check 3D View #

One of the approaches to verify the survey points is by checking the 3D view. After importing the survey points, you should check the 3D view to get a grasp on how your terrain level would look like.

From the 3D view above, we can see that survey points imported are satisfactory and there are no points that seem out of place.

When comparing both 3D views, we can clearly see that there are differences where the second file showed a sudden drop in elevation. Users may compare to the real site condition and immediately detect that there is an issue with the survey points imported.

Then we go to the 3D view when platforms are imported. If there are platforms incorrectly imported, you will notice the platforms appear strangely.

Try to compare with the 3D view below. Can you spot the difference?

View Cut Section #

Another approach that users may consider is by viewing the cut section at any side of the site area. From the cut section viewed, users will be able to detect if the survey points imported correctly or not. For example, from the cross section below we can see that there are segments that suddenly drop and we know that the terrain at that particular area is supposedly smooth. This shows that there might be wrongly imported survey points.

Use Sort Feature #

Another method users may consider is applying the sort function at the spread input. The software will automatically sort the survey points according to ascending or descending order of z elevation. From the value at the spread input, users may identify the survey points that are out of range directly. From the example below, we can clearly see that there are significant differences in z elevation (around 20m with -75m) showing that the points are not exactly the survey points that we want to import.

Deleting Surveyor Point #

Having verified that there are wrongly imported surveyor points, you may delete them accordingly. You may refer to our guidelines on how to identify and delete wrong surveyor points.

How to Prevent #

When importing the survey points from the drawing file, make sure that you only tick on the survey points layer. Hence, users are advised to separate the layer for survey points in the drawing file. The same goes when you import the platform.

You may also set the elevation range needed in the advance setting. The software will automatically filter the survey points that have out of range elevation.