* Roy Vegard Ovesen -- Wednesday 19 May 2004 22:22: > http://home.tiscali.no/rvovesen/fuel.png (19,964 bytes)
Nice! With the MetaPost user number at least doubling within just one day I'd say that this is now the preferred way to make instrument faces. ;-) > http://home.tiscali.no/rvovesen/rose.mp > > If your example is "not the best coding style" then I would say that mine is > probably _the_ worst coding style. :-) First of all: I cheated. The "not the best style" statement was for the first upload, but I consecutively improved the style and uploaded new version. And then: TMTOWTDI (there's more than one way to do it) and the result counts. Nothing else. > I used polar coordinates to draw the scale lines at desired angles and radii. So did I. Except ... > I also used polar coordinates to place the numbers at the exact same angles as > the lines. It looks to me like you have carefully chosen the cartesian > coordinates to place the number labels at. ... for the digits. That's because digits have rectangle shape and can't be placed evenly. There's some fine control required, and I made use of the symmetry properties of 0/2/4/6 and 1/5. > I opened the postscript file with Gimp. Upon opening, one can select the > resolution (DPI) and the amount of anti-aliasing of graphics and text > separately. I have a Makefile that creates the rgb and drops it into the bo's instrument dir. No intermediate, manual steps. I would have used gimp, though, if "convert" hadn't produced a decent texture already. What I would change in your *.mp file, is: (1) The position and size of the image: the center of the face should IMHO be at "origin" (0,0). That's a lot more natural, makes rotations easier, and the code easier to read. The canvas should take the later size into account: my faces are already 2^n * 2^m in size. No later cropping required, only "convert foo.1 foo.png". (2) I prefer to use relative units. I don't define u in terms of length units (1 cm), but such that (0u,0u) is the center, (100u,100u) the upper right corner, and (-100u,-100u) the lower left corner. (2) I'd rather use "(0,10u) rotated i" instead of "(3u+10u*cosd(i),3u+10u*sind(i)" (provided that you considered (1). Or even "left scaled 10u rotated i". (3) The position of 10, 12 and 14. That's why I didn't use polar coordinates for that. ;-) m. _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
