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-
- PURPOSE:
- --------
-
- In order to locate oil pockets, GIS engineers apply predictive methods to
- a stratification model of the soil.
-
- This model is derived from a 3D grid of drill-samples, where each element
- is mapped to its corresponding porosity level.
-
- By combining such advanced visualization techniques as
-
- Volume Rendering (3D textures),
- IsoSurface Reconstruction (3D geometry),
- Capping (boolean volume intersection),
-
- this model can be sliced in a number of ways to determine the most probable
- oil-flow paths.
-
-
- MANIPULATION:
-
- ---------------------------- Main Window -------------------------------
-
- LEFTMOUSE : Translation t: toggle textured outlining
- MIDDLEMOUSE : Rotation a: toggle antialiasing
- RIGHTMOUSE : Popup menu c: toggle capping/clipping
- MIDDLE&LEFTMOUSE : Zoom o: toggle outlining
- p: toggle polygon offset
- h: toggle hiddenline removal
- b: toggle outlining mode to
- glPolygonMode( GL_LINE )
-
- ---------------------------- Manipulator -------------------------------
-
- MIDDLEMOUSE : a: toggle antialiasing
- rotate capping plane
- MIDDLE&LEFTMOUSE :
- rotate Manipulator view
- LEFTMOUSE :
- translate capping plane along normal
-
-
- --------------------------- ColorMap Editor ------------------------------
-
-
- LEFTMOUSE r: select Red curve
- On a curve: g: select Green curve
- insert/select point b: select Blue curve
- At tangent end: a: select Alpha curve*
- enable tangent edit
- Everywhere else: BACKSPACE, DELETE
- deselection delete current point
- and select previous one
- RIGHTMOUSE
- popup menu ARROW keys
- move current point
-
- *Geometry is recomputed, to exclude ALPHA=0
-
-
- This demonstration prototype was developped with the collaboration of the
- I.F.P. (French Institute of Petrol), in France.
-
-