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Re: IDLgrPolygon unexpected result [message #83381 is a reply to message #83380]

Wed, 27 February 2013 12:23

DavidF[1]
Messages: 94
Registered: April 2012

Member

On Wednesday, February 27, 2013 12:48:55 PM UTC-7, Coyote wrote:
> On Wednesday, February 27, 2013 12:43:00 PM UTC-7, nata wrote:
>
>> So, any ideas David ?
>
>>
>
>>
>
>>
>
>> I am not sure to understand what are you saying... right hand - left hand rules.. if you see the values of the X vertices, they are increasing, from 0 to 1.
>
>>
>
>> That should be ok from my point of view. I tried to use a smaller set of vertices and it works. I am missing something here...
>
>
>
> Well, I tried this:
>
>
>
> x=[0,1.0,reverse(x)]
>
> y=[0,0.0,reverse(y)]
>
> cgPLOT, x, y, /XS, /YS, color='red'
>
> cgcolorfill, color='blue', x, y
>
> poly=OBJ_NEW('IDLgrPolygon',x,y)
>
> XOBJVIEW, poly
>
>
>
> And this doesn't work either. :-)

This works, so the data must be going into the Polygon object correctly.

a=[0,1.0,reverse(x)]
b=[0,0.0,reverse(y)]
cgPLOT, a, b, /XS, /YS, color='red'
cgcolorfill, color='blue', a, b
poly=OBJ_NEW('IDLgrPolygon',a,b)
XOBJVIEW, poly
poly ->GetProperty, data=d
p = idlgrplot(d[0,*], d[1,*])
xobjview, p

David

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[Message index]

		Re: IDLgrPolygon unexpected result By: Dick Jackson on Thu, 28 February 2013 23:51
		Re: IDLgrPolygon unexpected result By: natha on Thu, 28 February 2013 06:07
		Re: IDLgrPolygon unexpected result By: David Fanning on Thu, 28 February 2013 05:51
		Re: IDLgrPolygon unexpected result By: lecacheux.alain on Thu, 28 February 2013 05:22
		Re: IDLgrPolygon unexpected result By: Dick Jackson on Thu, 28 February 2013 01:03
		Re: IDLgrPolygon unexpected result By: natha on Wed, 27 February 2013 13:00
		Re: IDLgrPolygon unexpected result By: DavidF[1] on Wed, 27 February 2013 12:23
		Re: IDLgrPolygon unexpected result By: DavidF[1] on Wed, 27 February 2013 11:48
		Re: IDLgrPolygon unexpected result By: natha on Wed, 27 February 2013 11:43
		Re: IDLgrPolygon unexpected result By: DavidF[1] on Wed, 27 February 2013 11:34

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