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Terrain mesh is used to generate a surface for a topographic survey. It can help to evaluate terrain usability for steeper slopes, spot a survey's errors and prepare for generation.

Slope table setup

PVcase allows the user to input the slope angle start value (1), slope angle end value (2) and the amount of ranges for the slope. (3)

After entering these three values and clicking on Fill table the table on the left will be filled up with a default gradual coloring for each angle range.

It is important to notice that the first and last rows of the table are not editable. This means that the values that are out of range from your minimum or maximum value will also be color coded.

Example: The end value of the slope is 14 degrees and is colored in red. The remaining angles from 14 degrees to 55 degrees will also be colored. (The color for that is defined as red) 

The user can add or remove rows of the terrain mesh coloring table and input values of their own by hitting the DEL key after selecting a row. (example below)

To add additional ranges you need to use the Add row button or the Fill table button and later change the color for that range by clicking on the color rectangle. (example below)

Mesh density

The mesh density slider defines the distances between the triangle centers that the mesh is comprised of:

  • Higher density will result in a more detailed mesh but will increase generation time and require more computing power to store inside AutoCAD.
  • Lower density will result in a less detailed mesh but will reduce the generation time and requires less computing power.

The density value can by changed within the input box or slider handle.

Slope direction

The slope direction can be switched from East-west to North-south:

After you define your mesh, simply click Generate terrain mesh and select the desired area in which mesh should be generated. The area has to be a closed contour form.

Once a mesh is generated, values are created in the Distribution column showing which ranges take up most of the mesh.

🛈 If you would like to learn how to evaluate and troubleshoot terrain surveys with the terrain mesh tool, click here:

🛈 If you would like to learn how to import your mesh to PVsyst, click here:

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