I figured it out... AutoGreyScale -> ColorMap -> Color
where saturation in AutoGreyScale = 1. and I change hue to the color desired. Thanks, Brent On Fri, 2004-12-17 at 11:45, Brent Bailey wrote: > Peter, > > Thanks for your reply, but I am not sure that it will work in my case. > I have a min and max ranges of data, which I want to enforce. My > problem is not with data that lies outside of this range, but enforcing > those min and max for data that lies inside the range. > > Maybe an example is in order: lets say I have data that is constant > throughout of 0.5, and a min and max of 0 and 1, respectively. If I > attach the data field to Colormap, then 0.5 becomes the min and max and > the image shows nothing. I would like the min and max to be respected, > and the image showing a 0.5 opacity and saturation. > > This is how AutoGreyScale works, but it does not give you a color > option. Is there a way to colorize the AutoGreyScale results? > > Thanks for your help, > > Brent > > On Fri, 2004-12-17 at 00:02, Peter Connolly wrote: > > I had a similar issue: the colouring of data outside the range of my > > arbitary min and max. By default, you get no colour, or an optional out > > of range colour (an aside: the out of range is good but would be better > > if you could specify different colours for max and min!). > > > > My solution was to use compute to limit the data to the arbitary min and > > max values (data >= max ? max : data <= min ? min : data). > > > > That way, the colouring modules don't anything about the data outside > > the colouring range, since it no longer exists in the data field. Use > > route/switch to pass into multiple instances of this. I think this would > > work for saturation and opacity as well. If you want the saturation and > > opacity from the original data, pass in the original otherwise pass in > > the output of the compute. > > > > Hope that helps > > > > Peter > > > > > > -----Original Message----- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED] On Behalf Of Brent > > Bailey > > Sent: 17 December 2004 01:08 > > To: DX > > Subject: Re: [opendx-users] ColoBar adjusts color > > > > > > I am having a similar problem, but haven't found a satisfactory solution > > yet. I want to set the minimum and maximum values, but I also want to > > have it interpolate the saturation and opacity from the data inputs. > > When I don't connect the data input, I get nothing (the data has no > > effect on the saturation or opacity...so I get nothing on the image). > > When I have it connected I can't set the minimum and maximum values. I > > have many sequences of data (ie. things are changing with time), and I > > don't want the minimum and maximum values to change when playing back > > the sequences. > > > > I can't use AutoColor as I want to overlay multiple pieces of data, and > > I want each piece of data to have a certain color. > > > > Is there a way to set the min/max values so that they don't change? Is > > there a reason this won't work? > > > > Thanks, > > > > Brent Bailey > > > > > > On Thu, 2004-12-16 at 11:50, Chris Pelkie wrote: > > > Set the min and max values but disconnect the data input. You > > > meanColormap not Colorbar, right? or not? Either way... > > > > > > > > > On Wednesday, Dec 15, 2004, at 10:13 America/New_York, > > > FabianBraennstroem wrote: > > > > > > Hi, > > > > > > I visualize some data sequences from several data-files. > > > This works actually nice, but I have trouble to get the > > > ColorBar not > > > changing the colors for every different data-file. Right, now > > > ColorBar adjusts the new data-file. I tried to avoid this by > > > setting > > > the 'min' and 'max' values, but this did not help. > > > > > > Can anybody give me any advice? > > > > > > > > > Fabian Braennstroem > > > Duesseldorf/Berlin > > > > > > > > > > > > _______________________________ > > > Chris Pelkie > > > Scientific Visualization Producer > > > 622 Rhodes Hall, Cornell Theory Center > > > Ithaca, NY 14853
