| Group: | Plot Manipulation |
| See also: | setmaskp setmaskl freecolor |
| Function: | createcolor | |
| Description: | Allocates the colors for the user |
| Usage: | createcolor(rgb) | |
| Input: | ||
| rgb | n x 3 matrix; the 3 numbers in each row can take values between 0 and 256. They represent the red, green and blue parts of a color. If you cannot allocate more colors, you can use freecolor(). The maximal number of different rows in rgb is 248. | |
x=uniform(10000, 2)*2-1 z=x.*x z=z[,1]+z[,2] z=z/max(z) z=z*248 grey=z~z~z freecolor() createcolor(grey) z=x~z setmaskp(z, grey, 8, 5) d=createdisplay(1, 1) show(d, 1, 1, z)
A three-dimensional plot is shown where the points which are nearer to the center are displayed darker than the ones that are further.