PatrickT

Dr. Patrick T

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15 years, 223 days

MaplePrimes Activity


These are replies submitted by PatrickT

@bernie 

Hard to say, can you post a minimal example? (copy paste the commands and the input.txt)

@bernie 

Glad to have helped. To this date I have received far, far more from mapleprimes than I have given. There aren't that many areas of Maple where I know enough. My experience over the years is that they are some differential equations experts who visit mapleprimes frequently, so if the speed of your simulations becomes a problem you want to address, you should not hesitate to post a question again. There are all kinds of advanced tricks you can use, that are difficult to learn by simply reading the help files. 

I suddenly remember that your worksheet contained some 1d and some 2d formatting, be careful when you mix those, it can be a source of headache.

@bernie 

Glad to have helped. To this date I have received far, far more from mapleprimes than I have given. There aren't that many areas of Maple where I know enough. My experience over the years is that they are some differential equations experts who visit mapleprimes frequently, so if the speed of your simulations becomes a problem you want to address, you should not hesitate to post a question again. There are all kinds of advanced tricks you can use, that are difficult to learn by simply reading the help files. 

I suddenly remember that your worksheet contained some 1d and some 2d formatting, be careful when you mix those, it can be a source of headache.

That's a useful one acer, thanks. 

For the record, note that this is specific to Maple 16, it will return an error if run in earlier versions of Maple.

I had started creating a few "replacement" colors, less bright, which I now realize I could have obtained right away with the "classic" option.

That's a useful one acer, thanks. 

For the record, note that this is specific to Maple 16, it will return an error if run in earlier versions of Maple.

I had started creating a few "replacement" colors, less bright, which I now realize I could have obtained right away with the "classic" option.

I don't notice any differences between 15 and 16, could you show us a screen-shot of what you get? Is it inline? after export (if so, what format, what command), is it document/worksheet mode? 2d or 3d plot? Give a minimal working example, e.g. restart; plot(x, x=0..1);

glad you could fix this problem!

glad you could fix this problem!

@acer 

Thanks a lot, your explanations clarify the matter.

 

P.S. The output of the exported file also lost its shine here. 

Thanks for posting this, it doesn't look right, I haven't experienced this. Have you experimented with uninstalling/reinsalling and/or on another computer or on another os and/or updating your drivers? 

Thanks for posting this, it doesn't look right, I haven't experienced this. Have you experimented with uninstalling/reinsalling and/or on another computer or on another os and/or updating your drivers? 

This is great, thanks acer!

As an experiment, I was trying to map a photo of the surface of Mars, but got the following error message:

Error: the number of colours in the COLOUR structure is not sufficient.

Any idea what that is about? 

The image is this one:  (Edit: changed the url)
http://planetologia.elte.hu/ipcd/mars_albedo_big.jpg
Image possibly copyrighted, so I'm not posting it, just pointing to it. 

 

A few remarks. 

1. @WindowsUser: Here's how I accessed tree.jpg on my system:

ImageTools:-Read(cat(kernelopts(mapledir),"\\data\\images\\tree.jpg")):

2. @Christopher222: I've had no memory problem with the following animation:

AnimatedEarth := plots:-display( Earth
, 'viewpoint' = ["circleright", frames=200]
) :
plots:-display(%);

Do you mean in worksheet or document mode? Can you attach an example worksheet/document? Can you insert a screen printout of what your image looks like when split? This will help understand. I've experienced crashes when manipulating very big images, but not the split screen you describe. From the info you give it sounds like a driver problem, but it's hard to be sure.

I agree with Alejandro that the :- trick is way too advanced. A less advanced trick which I use all the time is that instead of loading package at the start, I call them when needed, e.g.

DEtools[DEplot](deq1,x(t),t=-.5..4,x=-0.2..2,IC,linecolor=black,thickness=3,arrows=line);

This approach avoids potential interferences. I do this mostly to remind myself about which package the command belongs to. It is occasionally awkward when the packages have long names and you are nesting several calls, but so far I've been able to live with it.

@dskoog 

It's great to hear his, because a related problem was reported before:

The third label is dropped on export, and the other labels are also often cropped out (partially or fully). Below some accounts of the problem.

http://www.mapleprimes.com/questions/124671-Plotsetup-Versus-Mouse-Export-Inconsistencies

http://www.mapleprimes.com/posts/134832-Postscript-3D-Plot-Export-SCR--Maple

http://www.mapleprimes.com/questions/135259-Plot-Scale-Plot-Size

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