gtool4/Fortran90 tutorial - tools 1

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gtool4/Fortran 90 tools tutorials

## First of all it makes a graph: gtview

2001-09-25 TOYODA Eizi

### 2-dimensional contours plot

Let's try to play with gtool4/Fortran90. The file "test2d.nc" that is attached to gtool4 is used here. If you have no such file, get from http://www.gfd-dennou.org/arch/gtool4/examples/SIGEN.htm .

Put the following command if it obtains a file.

    gtview test2d.nc

It thinks that the following figure was indicated.

### Data are all right one dimension, too.

It is not only it though it may have considered that gtview is the program which draws a value line figure with the above example. Data can draw one dimension, too. From the same place, get file test1d.nc, and try to put the following command.

    gtview test1d.nc

gtview sees a file, and the number of dimensions of the data is judged automatically, and chooses a proper expression.

### As for three dimensions, by the animation.

gtool doesn't cope with volume rendering at the time of the present.
As for the three-dimensional data, an animate cartoon is indicated.

    gtview test3d.nc

Like this, it is devised later so that a (That that is normal.) figure may be seen even if nothing is indicated if anyway it is put on gtview if it obtains a file.