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Re: plotting Ascii in bitmap [message #52321 is a reply to message #52299]

Fri, 26 January 2007 08:27

Paolo Grigis
Messages: 171
Registered: December 2003

Senior Member

hradilv wrote:
> Will using the Z-buffer help performance enough? Give it try.

But the Z-buffer has only 8-bit available for the colors in the
picture, right? Then it won't work if you have more than
255 different colors in your picture...

Paolo

>
> On Jan 26, 6:47 am, "Gert" <Gert.VandeWouwerNO @ SPAM.com> wrote:
>> Hi,
>>
>> I need to plot colored numbers (and letters) on a bitmap and then save the
>> result. It's not necessary to view the overlay bitmap in IDL.
>> so:
>> x = read_tiff('bitmap.tif')
>> overlay=x ;maybe be make an RGB here..
>> plottext('kjdhkj',positionrow,positioncol)
>> plottext('323',positionrow,positioncol)
>> write_tiff, x, 'overlay.tif'
>>
>> Does anyone know how the plottext() function should look like? I did it once
>> by:
>> tvsxcl,x
>> plot, stuff
>> oplot, stuff...
>> tvrd, overlay
>> but this isn't very practical if x is 5000x5000 bitmap...
>>
>> Thanks,
>>
>> Gert
>

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[Message index]

		Re: plotting Ascii in bitmap By: Ingo von Borstel on Sun, 28 January 2007 23:58
		Re: plotting Ascii in bitmap By: Paolo Grigis on Fri, 26 January 2007 08:27
		Re: plotting Ascii in bitmap By: Vince Hradil on Fri, 26 January 2007 08:09

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