I took a look at inkscape and I did review the tutorial-shapes page, but
not being familiar with the program, the learning curve is longer than
the manual process I went through with GIMP. If there was a tutorial
that walked me through step-by-step I could do that. What I did last
night in GIMP, which resulted in much better quality images:
1) open a new round layer using Elipse tool
2) fill background with black
3) select shrink - by 2 pixels
4) edit - clear (you end up with a round image with a 2px border and
clear background
5) click/select measure tool
6) in my case I want to divide the circle with each section growing by
36 degrees, so I insert the measure tool at the very center pixel and
move it to an edge/border approximately 36 degrees from the top center
border which shows as 90 degrees. I make a note of that location ( say
30,2 whatever it is )
7) now switch to path tool
8) click once in the images dead center
9) click once at top dead center (in the border)
10) incrementally click along the border until you reach the 36 degree
location you noted
11) double-click on the path tool to open tool options and click on
selection from path
12) fill with background color
13) save this as the first image
I tried simply adding a copy of the image as a 2nd layer and rotating 36
degrees but it seemed to not seat cleanly so I did the following instead:
1) I made a copy of the first image and opened it
2) with the first image open I totally cropped to the pie piece.
3) do Tools --> Transform Tools --> Rotate and rotate the pie section
about 36 degrees
4) copy the section to the new image and move it into place; it becomes
the 20% piece
5) repeat this process for each 10% increment
Sometimes when the section rotates some pixels mess up - fix these up
manually.
I'm sure that inkscape is a better tool, but the learning curve of a new
application works against me here. I'd also considered imagemagick
which I'm much more familiar with as a command-line application, but
sorting through the coordinates and all would also take substantial
time/effort. If anyone wishes to see a tutorial with diagrams I could
probably do that this weekend.
Thx, Bob
Chris Mohler wrote:
On Tue, Jun 15, 2010 at 12:07 PM, Bob Meetin <b...@dottedi.biz> wrote:
I gave it a try last night using the measure tool to mark up approximate
angles then the path tool to actually create the slices. They look
fair, will certainly need to be redone befor golive, but it seems like
there should be a smarter way to do this.
I would use Inkscape to draw them and then export PNG files. In
Inkscape, after drawing an ellipse look at the start and end
parameters: if you punch in 90 for the end (and leave start at 0),
you'll have the 25% ball. See the section on ellipses:
http://www.inkscape.org/doc/shapes/tutorial-shapes.html
Another approach would be to use SVG directly on the page (either on
the fly or saved from Inkscape) - but that is likely not supported
well by older browsers.
Chris
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