How to vectorize plot graphic?

Hi Folks,

Using ggplot, I've produced the following graphic:
http://i.imgur.com/39a139C.png

The graphics in the plot seem to be bitmapped and not vectorized.  That
is, the vertical and horizontal lines jump rows of pixels instead of
having just nice, angled lines.  Any thoughts about how to get these
graphics vectorized?  Or am I misunderstanding something?

Another example:

The code:

    require(ggplot2)
    df = data.frame(x = c(1:360), y = sin(seq(0,2*pi*3,length.out = 360)))
    ggplot(df, aes(x=x, y=y)) + geom_line()

produces http://i.imgur.com/mjjSKih.png

Perhaps what I'm dealing with here is my screen resolution.  However, I
use ggsave() to save .wmf files, and those also turn out to be bitmaps
and not vectors.

Thanks,
Allie

	[[alternative HTML version deleted]]

R-help@

 mailing list

Hi Folks,

Using ggplot, I've produced the following graphic:
http://i.imgur.com/39a139C.png

The graphics in the plot seem to be bitmapped and not vectorized.  That
is, the vertical and horizontal lines jump rows of pixels instead of
having just nice, angled lines.  Any thoughts about how to get these
graphics vectorized?  Or am I misunderstanding something?

Another example:

The code:

   require(ggplot2)
df = data.frame(x = c(1:360), y = sin(seq(0,2*pi*3,length.out = 360)))
   ggplot(df, aes(x=x, y=y)) + geom_line()

produces http://i.imgur.com/mjjSKih.png

Perhaps what I'm dealing with here is my screen resolution.  However, I
use ggsave() to save .wmf files, and those also turn out to be bitmaps
and not vectors.

Thanks,
Allie

[[alternative HTML version deleted]]

Off the top of my head,  I'd suggest trying ggsave()  with the extension
".svg" .  I realize that SVG files are not recognized by some image display
apps (Microsoft Windows I'm looking at YOU), but IMHO it's the best choice 
for vectorized images.


Alexander Shenkin wrote

Hi Folks,

Using ggplot, I've produced the following graphic:
http://i.imgur.com/39a139C.png

The graphics in the plot seem to be bitmapped and not vectorized.  That
is, the vertical and horizontal lines jump rows of pixels instead of
having just nice, angled lines.  Any thoughts about how to get these
graphics vectorized?  Or am I misunderstanding something?

Another example:

The code:

    require(ggplot2)
    df = data.frame(x = c(1:360), y = sin(seq(0,2*pi*3,length.out = 360)))
    ggplot(df, aes(x=x, y=y)) + geom_line()

produces http://i.imgur.com/mjjSKih.png

Perhaps what I'm dealing with here is my screen resolution.  However, I
use ggsave() to save .wmf files, and those also turn out to be bitmaps
and not vectors.

Thanks,
Allie

	[[alternative HTML version deleted]]

R-help@

 mailing list

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You have mentioned nothing about the device you are writing the plot to. If to the default and you are copying it from there as a bitmap, then what you are describing sounds as expected. Read the R Input/Output manual (again) for other output options.
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Alexander Shenkin <ashenkin at ufl.edu> wrote:

Hi Folks,

Using ggplot, I've produced the following graphic:
http://i.imgur.com/39a139C.png

The graphics in the plot seem to be bitmapped and not vectorized.  That
is, the vertical and horizontal lines jump rows of pixels instead of
having just nice, angled lines.  Any thoughts about how to get these
graphics vectorized?  Or am I misunderstanding something?

Another example:

The code:

   require(ggplot2)
df = data.frame(x = c(1:360), y = sin(seq(0,2*pi*3,length.out = 360)))
   ggplot(df, aes(x=x, y=y)) + geom_line()

produces http://i.imgur.com/mjjSKih.png

Perhaps what I'm dealing with here is my screen resolution.  However, I
use ggsave() to save .wmf files, and those also turn out to be bitmaps
and not vectors.

Thanks,
Allie

	[[alternative HTML version deleted]]