❖The next tool is the Contour/Section tool which allows you to create contours/sections for any surface:
❖First select your surface:
❖Then open the tool which will bring up the following dialogue:
❖First you can choose the direction of the contours/sections (in this example I will leave it at the default):
Optionally you can tick on the Pick box and click in your scene to choose your directions:
Clicking the Flip button will reverse the directions:
❖Next you can choose the level at which you would like the contours/sections to start:
Optionally you can tick on the Pick box and then click in your scene to choose the Start Level:
❖Then choose how much of an interval you would like between each contour/section:
❖Then choose how many contours/sections you would like to be made:
❖Next you can choose what level you would like the contours/sections to end at (this will be adjusted automatically on changing the Count field):
Optionally you can tick on the Pick box and click in your scene to choose the End Level:
❖Clicking on the Compute From Selected button will compute start and end levels from the selected surface (if the parameters you have entered in make sense then nothing will change):
❖Finally click Contour:
❖Your surface has now been contoured:
❖If you want to make closed polygons between levels instead of contours then make sure to have Make closed polygons ticked on before contouring:
