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y_width of xyouts [message #17449]

Tue, 26 October 1999 00:00

R.Bauer
Messages: 1424
Registered: November 1998

Senior Member

Hi,

I like to know exactly the y_width of a text in normal coordinates.
I have written a small routine which unfortunately don't run with all
devices set.

Any other ideas are welcome

I know already !D.Y_CH_SIZE but its only useful on some windows systems.

FUNCTION y_width,text,x_width=width,_extra=e
old_dev=!d.name
IF STRUPCASE(!version.os_family) EQ 'WINDOWS' THEN dev='win' ELSE
dev='x'
SET_PLOT,dev
WINDOW,/free,/pixmap,retain=0
WSET,!D.WINDOW

XYOUTS,0,0.5,text,/NORM,width=width,color=1,charthick=10,ali gnment=alignment,_extra=e

image=TVRD()

SET_PLOT,old_dev
!p.background=255
!p.color=0
dim=SIZE(image,/dim)
idx=WHERE(image EQ MAX(image))/dim[0]
y_width=(FLOAT(MAX(idx))-FLOAT(MIN(idx)))/FLOAT(dim(1))
WDELETE,!D.WINDOW
RETURN,y_width
END

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[Message index]

		y_width of xyouts By: R.Bauer on Tue, 26 October 1999 00:00
		Re: y_width of xyouts By: R.Bauer on Thu, 28 October 1999 00:00
		Re: y_width of xyouts By: m218003 on Thu, 28 October 1999 00:00

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