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Two problems in Maple 11 when plotting figures
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I encounter two problems in Maple 11 when plotting figures.
The first one is I can not fix the ratio of height to width, say golden section 0.618 so as to make the figure more beautiful.
The second is that the smoothness of a curve is not better than that plotted by Maple 10. For example, the command: plot(-x+1,x=0..1,thickness=3,numpoints=10000,color=black); in Maple 10 and Maple 11 give two figures. The former seems more better. Maybe the reason is the figure's style=patch. However, in Maple 11, I can not find this type of setting and have no idea to smooth it.
If someone know how to solve these two problems, please tell me ASAP. I appreciate your kindly help.
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Two problems in Maple 11 when plotting figures(continued)
Download 7745_1.eps
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The attached files are the figures: Fig.1 , Fig.2 plotted by Maple 10 and Maple 11 respectively.
Two suggestions
Hi hsjahnu
I have two suggestions for you. If you want to control the size of the plot exactly I recommend using a Plot Component. Open the Components palette on the left and drag the one that looks like a plot into the worksheet. Then select it and open the "properties" dialog using the menu. You can control the exact size of the plot; you can also enter the plot comand you want executed.
Your problems with smoothness are coming because your setting of numpoints is far too high. New users to Maple are sometimes told "increase the value of numpoints" if they don't see a smooth plot, but that works only up to a point, and it's useful only when the curve is complex. You are forcing Maple to draw 10000 line segments in the plot, and even slight shifts of those segments (such as putting them on the nearest pixel) creates a jagged line.
Given that you are plotting a straight line the best setting of numpoints is 2. That's an extreme case, but even for more complex lines you should never need to go above a few hundred, and for smooth curves much less will usually do, and will often give better results than a higher number.
David Clayworth Maplesoft GUI Developer
The problem of smoothness is not solved
Dear all,
I first thank Mr. Clayworth for giving me many helpful suggestions. But, I have not solve the problem of smoothnes when plotting figures in Maple 11. I do not know how to set the numpoint or grid sizes. In Maple 10, I just fix the numpoints very high to get smoothness. In fact, now I can not obtain ideal figures using Maple 11. That makes me feel puzzled about this software. I hope soemone can help to solve this problem throughly. Thanks a lot !
Make sure you have Maple 11.02
Another suggestion is to check your Maple 11 dot release. One of our customers reported similar problems with Maple 11.00, and I recommended updating to 11.02 which you can find at http://www.maplesoft.com/support/downloads/m11_02update.aspx
Please also select "Enabled" under Tools > Options > Display > Plot anti-aliasing which improves screen output quality. Factory default is "Disabled", if I recall correctly.