Fix scaling

2013-06-25 19:45:09 +02:00 · 2013-06-25 19:45:09 +02:00 · 987d51a73b
parent d3e932b78c
commit 987d51a73b
1 changed files with 4 additions and 1 deletions
--- a/boxes.py
+++ b/boxes.py
@ -76,10 +76,13 @@ class Boxes:
        self._init_surface(width, height)

    def _init_surface(self, width, height):
+        mm2pt = 90 / 25.4 / 1.25
+        width *= mm2pt
+        height *= 3.543307
        self.surface = cairo.SVGSurface(self.output, width, height)
        self.ctx = ctx = cairo.Context(self.surface)
        ctx.translate(0, height)
-        ctx.scale(1, -1)
+        ctx.scale(mm2pt, -mm2pt)

        ctx.set_source_rgb(1.0, 1.0, 1.0)
        ctx.rectangle(0, 0, width, height)