Jason Hine wrote: <snip>
Background: I'm writing a program that will read in the ITERATES.TGA file and write out an ASCII GRID file that can then be imported into Esri's ArcGIS (www.esri.com). My eventual goal is to be able to use ArcGIS' spatial analysis tools to analyze some characteristics of the Mandelbrot set. <snip>
In producing the .tga file with Fractint, have you used the other relevant parameter?
From fractint.doc (from Fractint 20.04, patch11), page 133: (...) TRUECOLOR=yes You can save either the default color scheme or the iteration escape value to a file called FRACTxxx.TGA. This will allow experimentation with truecolor algorithms. A C language source file that reads the file when iterates are used, is provided. Someday we'll have REAL truecolor support ...
TRUEMODE=def|iter Determines whether the FRACTxxx.TGA file produced when TRUECOLOR=yes contains the iteration value or the default coloring scheme. (...) It's also possible (part of) this feature got broken along the way and no-one noticed until now. Regards, Gerald