Geologic Surface Creation

[chris-traxler]

Create a surface between polylines used for delineation of surface features. This can also be used in tunnel monitoring to create surfaces between geologic interpretations of more tunnel faces. Task separation:

• [ ] Connect endpoints of polylines and triangulate in discrete steps
• [x] Add as separate object group into GUI
• [x] Adjust colour and transparency in GUI

Requirement P3D-M012

[LauraFritz14]

Branch: develop/features/geologicSurfaceCreation
Commit 62436cf Testdata: file://euclid.vrvis.lan/InOut/PRo3D/TunnelFaceSequence.7z

Here is my scene file: Z:\projects\20-ExoMars_PanCam_3D_Vision_2021\data\GeologicSurfaceCreation

To create a new geologic surface select two annotations via multiselection (click on the cube in front of the annotations name) in the Annotations tab.

Then push the +-button (A) in top of the GeologicSurfaces tab to get an new geologic surface in the 3d view and in the listing (B). The listing (right) shows all meshes in the scene. Under the mesh's name is a little menu:

• FlyTo: triggers a FlyTo animation
• Toggle Visible: toggles the mesh visible/invisible
• Remove: removes the mesh from the scene

You can select a mesh by clicking on it's name, which turns the color to green. Then you can see the mesh's properties in the Properties panel below:

• Name: the name in the listing (press enter)
• Visible: toggles the mesh visible/invisible
• Outline thickness: the outline thickness
• Transparency: the transparency of the surface
• Color: the color of the surface
• Invert meshing: if your surface looks like this:

known rendering issue:

The geologic surfaces are rendered in drawing order.

[chris-traxler]

Everything works fine as described above by @LauraFritz14. The current mesh creation method by connecting points of two polylines works well enough and can be included in the next release. It is hard to avoid artefacts that result from two polylines that do not match ideally. Artefacts are then visible when increasing the transparency.

I suggest to drop the subtask "Connect endpoints of polylines and triangulate in discrete steps" because it would not improve the situation of badly matching polylines.

[chris-traxler]

There is a small usability issue. When navigating to a geologic surface, PRo3D assumes a view that corresponds to the polyline that was selected second. So the surface is viewed edge on.

https://user-images.githubusercontent.com/5574563/117028764-4e48da00-acfe-11eb-8d4c-26d8bf50e559.mp4

[LauraFritz14]

Commit 5eeb3f1

Added "Set Homeposition" button to properties panel. You can set the current camera view as FlyTo view for the selected geologic surface to solve the problem described by @chris-traxler above.

[chris-traxler]

I successfuly tested the "Set Homeposition" button for different geologic surfaces and for different viewpoints.

[ThomasOrtner]

https://user-images.githubusercontent.com/21270851/125478477-fdc49b4a-6bc9-49f9-a8fe-e600b45e6737.mp4

I tested the geological surface and I have to remarks

1) there are numerical issues with Martian data, tested it with a Shaler Scene 2) there should be some hints on how to create a geological surface in the respective tab when nothing is selected, e.g. nothing is selected - "(multi) select two annotations to connect", one is selected - "1 of 2 annotations selected", ...

[ThomasOrtner]

is this solved in any newer version? thanks