[overture] Re: contour plotter
- From: Yongsheng Lian <yongshenglian@xxxxxxxxx>
- To: overture@xxxxxxxxxxxxx
- Date: Wed, 1 Apr 2009 16:07:19 -0400
Bill and Dominic,
Thanks for the reply. I will convert the exiting plot3d file to a
show file instead.
Yongsheng
On Tue, Mar 31, 2009 at 4:29 AM, Bill Henshaw <henshaw@xxxxxxxx> wrote:
> HI Yongshen,
>
> Yongsheng Lian wrote:
>>
>> Hi Bill,
>>
>> Thank you for the input.
>>
>> I look at th GraphicsParameters.C, the default one is red=0;
>> green=value; blue=1-value. I tried to use red color for the maximum
>> value and blue the minimum, so I use red=1; blue=0; green=value. It
>> does not work. Is there any related paper that I need to look at?
>
> To use the user defined colour table you need to use the command
> "user defined" from the contour plotter pop-up menu. To set red
> for max and blue for min you would set red=value; blue=1-value; green=0;
>
>
>>
>>
>> I am using a wireless mouse, somehow the pop up window does not show
>> when I click the right button.
>
> You need to make sure that the "num-lock" key is not set or the
> the right mouse button will not work.
>
>>
>> I did change the value to min=-10 and maximum=10.1. Because contour
>> surface plot uses continuous values, the zero is still there. In
>> Tecplot it has a function that I can blank out contours in certain
>> range, [-2 2], for example. Could we do the similar thing using
>> plotStuff?
>
> Unfortunately there is no option to do this.
>
>>
>> I did notice that in the Ogshow directory there is a subroutine that
>> can change plot3d files to a show file. Do we have a subroutine that
>> can convert a show file to a plot3D file?
>
> As far as I remember there is no function to convert a show file
> to plot3d.
>
> ...Bill
>
>>
>> Thanks,
>> Yongsheng
>>
>>> You can define a new colour table by changing the
>>> user defined colour table in function defaultColourTableFunction
>>> in GraphicsParameters.C . To use this table, change the colour
>>> table from the contour plotter popup menu.
>>>
>>> Sometimes the zero contour level generates many contour lines
>>> near zero. You can set the min and max contour levels so that
>>> zero is not a contour value, e.g. min=-10, max=10.01
>>>
>>> I didn't fully understand your questions but I hope that
>>> helps.
>>>
>>> ...Bill
>>>
>>> Yongsheng Lian wrote:
>>>>
>>>> In the contour plotter menu of plotStuff, is there a way that we can
>>>> change the scheme? To compare the result with experiment results of
>>>> others, we need to find the same scheme. For example, in the vorticity
>>>> contour, the maximum value uses blue and minimum one uses red. If we
>>>> want to use red for maximum and blue for minimum instead, can we do
>>>> that?
>>>>
>>>> The second question is can we blank-out some values to make those
>>>> regions white. Because the vorticity is nearly zero away from the
>>>> wing, we want to assign it to white to make the figure nicer.
>>>>
>>>> I read the contour.C in Ogshow directory, it seems there are more
>>>> options.
>>>>
>>>> Thanks,
>>>> Yongsheng
>>>>
>>>>
>>>
>>
>>
>>
>
>
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