Sep/Oct Lite Entry - Relleker: Recreational Wilderness

[RobA]

I created the scale in raw SVG. ( http://www.monticello21st.com/uploads/Scale.svg ). The top half marks out 10km increments. The bottom half marks out 5 mile increments. There were some problems importing it into GIMP. Hopefully I can find a "no antialias" svg command to fix the last one remaining.

First off, I would suggest exporting from Inkscape as a PNG and import that into Gimp as a layer, since Inkscape has better SVG rendering than Gimp.

Second - you probably have a subpixel alignment problem. From the FAQ

How to suppress antialiasing?
With the current renderer, it is not possible to completely get rid of antialiasing. However, it is possible to partially suppress it on export. Usually, antialiasing is unwelcome in horizontal and vertical lines which become "blurred". To work around this, make sure your horizontal/vertical edges are snapped on the pixel grid, and all strokes are a whole number of pixels wide. Then, export bitmap at the default 90dpi so that 1 px unit corresponds to 1 bitmap pixel. In the resulting bitmap, snapped color boundaries will be perfectly crisp.

Here is a nice description at Inkscape Forum.

Now both of these say to set the grid and snap to it....but you already have an image, so check out the pixelsnap extension:

When you create vector graphics in Inkscape, horizontal & vertical lines and rectangles will usually appear slightly blurry, due to edges not being aligned perfectly with screen pixels.
<snip>big discription of how to manually work around with grids as above</snip>
With this plugin, the whole thing is a simple case of running Extensions->PixelSnap on the selected objects.

Hope this is useful.

-Rob A>

[Jeff_Wilson63]

Well, for the scale, the command that's supposed to do what I want is

style="shape-rendering:crispEdges"

Unfortunately, neither GIMP nor Inkscape understand it. I was finally able to get something that looked close to what I wanted by shifting the viewBox half a pixel.

viewBox="0.5 0.5 550 80"

This still created some unintended effects as GIMP interprets half pixels differently in different locations. I may go back later and rewrite everything to display properly in GIMP, but right now I'm inclined to look at the problem as being with GIMP.

Also note that GIMP ignores svg width and height parameters. To properly open this image in GIMP you need to manually set ppi to 72.

http://www.monticello21st.com/uploads/Scale.svg