Page Comparison

Datasets

Datasets are usually geometrical representations of surface and body shapes in 3D space. In additon datasets may represent velocity fields, petrophysical parameters, seismic images and virtually any kind of recorded data.

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     POINT    X       Y       Z     scalars   TEMPERATURE   PRESSURE
      0      3.4    234.3   45.12     45.12      0.43         45.6
      1      5.6    290.5   55.63     55.63      0.44         45.5
      2      6.67   300.3   78.00     78.00      0.45         45.3
      ...
      ...

An attribute always has a name. They are also called field data as they are saved as field data in a vtk dataset. A similar list will be produced by Table View that is found on the right click menu for every dataset in the project.

Scalars

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A special attribute type in Geocap is called scalars. When a structure is mapped, the colors of the map are according to the scalars. The scalar values can be the geometry itself. The map colors will then show the geometry. Otherwise the map will have colors from the scalar attribute.

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         POINT  i    j    HEIGHT
        0      0    0     34.3
        1      1    0     34.4
        2      2    0     34.5
        3      0    1     34.2
        4      1    1     34.3
        5      2    1     34.6
        ...
        ...

...

      POINT  I    J    RED  GREEN  BLUE
        0    0    0    120   210    77
        1    1    0     73    56    27
        2    2    0     15   110    99
        3    0    1     84    57    51
        4    1    1     51    72    11
        5    2    1     67    11    87
        ...
        ...

An image consisting of a rectangular array of pixels is an example of raster graphics, as opposed to the vector graphics created by polydata.

Image Modified
The Amazon rainforest (NASA)