Can you submit a bug report from DrRacket? (Use "Submit Bug Report..."
in the Help menu.) That way, we'll have your system information
automatically attached to the PR in the bug database. Make the title
something like "Drawing rotated unicode text breaks device contexts on
Windows 7."
Thanks for being patient. I'm sure Matthew will push a fix very soon. ;)
Neil ⊥
On 04/25/2014 06:48 PM, Deren Dohoda wrote:
Hi Neil,
I have the 32-bit version installed on my Win7 machine at home, too. I
was able to reproduce my own problem here as well.
When I run your example, the first plot looks like I'd expect. The
second one does not have the circle. If I remove the \circ from the
text-extent it doesn't change anything. If I remove \circ from the
text-extent and the draw-text, then the circle appears. If I remove
\circ from only draw-text (leaving it in text-extent), the circle also
appears. I did take a screenshot if you want to see it. Otherwise, the
numbers are
39.0
13.5
2.5
0.0
31.0
13.5
2.5
0.0
I then uninstalled the 32-bit version, downloaded and installed the
x86_64 version, and reran your example. The same thing happened again.
Something maybe helpful: when the \circ is in the string for draw-text
the text is NOT rotated 90 degrees counter-clockwise. When the \circ is
removed, the text is drawn rotated 90 degrees counter-clockwise.
...Ah, I see Kieron has uploaded an image to show. That is exactly what
I see.
Deren
On Fri, Apr 25, 2014 at 6:39 PM, Neil Toronto <neil.toro...@gmail.com
<mailto:neil.toro...@gmail.com>> wrote:
I can't replicate this problem on my machine, so I'll need more
information. Can you run the following program and reply with what
you see?
#lang racket
(require racket/draw plot)
(plot (function sin #e1e-157 #e1e-156))
(define bm (make-bitmap 400 400))
(define dc (make-object bitmap-dc% bm))
(send dc set-smoothing 'smoothed)
(send dc set-scale 2 2)
(send dc set-font (make-font #:size (plot-font-size)
#:family (plot-font-family)
#:size-in-pixels? #t))
(send dc get-text-extent "X (⇑∘C)" #f #t 0)
(send dc draw-text "X (⇑∘C)" 80 180 #t 0 0)
(send dc get-text-extent "Y (∘C)" #f #t 0)
(send dc draw-text "Y (∘C)" 10 120 #t 0 (/ pi 2))
(send dc draw-ellipse 30 30 140 140)
bm
It should produce a simple plot with tick labels on both axes with
the superscripted exponent "-157", a collection of numbers that
looks something like this:
110.0
13.5
3.0
0.0
34.0
13.5
3.0
0.0
and a bitmap with a circle and the X and Y axis labels you expect,
with approximately the placement and orientation you expect them on
a plot (though bigger).
Neil ⊥
On 04/25/2014 03:39 PM, Deren Dohoda wrote:
Short story: put a \circ in the y-label and plotting fails?
Racket 6.0 32-bit on 64-bit Windows 7. Using DrRacket. The plot
frame is
generated, the plot title and x-label appear, the tick marks on
the axes
appear, but the y-label doesn't appear and neither (points ...) nor
(function ...) appear.
Example code (hopefully the extra characters come through email
correctly):
#lang racket
(require plot)
(define (make-p title y-label)
(plot (function (λ(x) x))
#:x-min 0 #:x-max 50
#:y-min 0 #:y-max 50
#:x-label "X (⇑∘C)"
#:y-label y-label
#:title title))
(define-values (works doesnt-work)
(values (make-p "Works (⇓∘C)" "Y (C)")
(make-p "Doesn't Work (⇓∘C)" "Y (∘C)")))
works
doesnt-work
;;;;;;;;;;;;;;;;;;;;;
It's not just arbitrary character substitutions, for instance
all the
\left|right|up|downarrow don't cause any problems, but
\Down|Up|etc.arrow causes the same problem as \circ. I threw
some in the
title and x-label to show that they didn't cause any failures. I've
attached an image of what appears in case it helps.
Deren
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