❖ This form is used to perform a draping operation on selected geometries to a surface or surfaces, these geometries can exist in the same layer as the surface or be in some other layer. In this example I have them all in one layer:
As you can see in the picture above the points are floating above the surface and I would like to drape these points onto the surface.
❖Before using this tool make sure to set your scene view to the correct orientation for the draping which in this case will be a top view because I am draping downwards, you can click in your scene and then hit the T key on your keyboard as a shortcut to get to a top view or select it in the View Orientation window accessed by the eye at the bottom of the spatial pane:
This then brings up the View Orientation dialogue box where you will select Top:
You are now viewing from above.
❖Next step is to select the points you want to drape with one of the selection tools or you can select the whole layer (all the geometries in it) by right clicking on the layer and choosing Selection>Set to layer. You then need to select the surface/s you want to drape to as well using one of the selection tools or right clicking on the layer with the surface/s and choosing Selection>Set to layer to select all the elements in the layer. In this case my points and surface are all in one layer so I will just select the whole layer:
Now you can open the Drape Selection tool and it will bring up the following dialogue:
❖Click Add Selected and the geometries of the surface you are draping onto will be entered into the tool:
❖If you have made a mistake and the wrong geometries have been entered in, clicking the Clear button will clear the geometries out of the tool and they can be entered again:
❖Now in the dropdown box below choose whether you would like to Drape to active layer, meaning to a different layer that is set as active or whether you would like to Drape in place(Modify) which will do the draping right in the same layer(will modify the layer):
I will choose to just Drape in place:
❖Now you can go ahead and click the Drape button:
❖Your points have now been draped as indicated by the status bar below, go over to your scene and rotate your surface to see:
