| Re: Different sized pixels in pg_plotimage (is this a "feature") [message #64773 is a reply to message #64772] |
Tue, 20 January 2009 11:21   |
ben.bighair
Messages: 221
Registered: April 2007
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Senior Member |
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On Jan 20, 1:19 pm, Craig Markwardt <cbmarkwa...@gmail.com> wrote:
> On Jan 20, 9:00 am, Brian Larsen <balar...@gmail.com> wrote:
>
>
>
>> Liam,
>
>> thanks this is another great solution to this.
>
>> I find it infinitely interesting how different people approach
>> problems. There are inherent "betters" and "worses" with each way
>> based much on the approach and the particulars of the problem it was
>> intended for.
>
>> pg_plotimage has the advantage of specifying img, x, y so it does the
>> axes for you and will scale the pixels log etc but doesnt provide a
>> clean way to set the zrange (color range), and has some 1/2 pixel
>> things that are more or less worked out now
>
>> imdisp has the advantage of being a very clean way to display an image
>> but the user has to specify the axes themselfs, which is often a good
>> thing. The zrange capability works easy also, but log scaling isnt
>> obvious in x and y
>
> ...
>
> And it's strange to see PG_PLOTIMAGE, since PLOTIMAGE has been doing
> the same thing for close to a decade.... :-) (with image intensity
> scaling, axes, standard graphics keywords, pan and zoom, the works).
>
> Craig
>
> Available from my web page...http://www.physics.wisc.edu/~craigm/idl/graphics.html
Hi,
It is true that there are some very nice routines out there to handle
image display. One of the distinctive features that Paolo built into
pg_plotimage is the ability to log scale the image in the x and/or y
directions. Otherwise, it is hard to beat the old standbys such as
TVImage, TVScale, ImDisp and PlotImage.
Cheers,
Ben
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