ahausknecht's profile - activity

Your answer solved my problem. I disabled my virus protection software and I was able to install Sage 8.5!

Belated thanks!

Attempting to open 8.5 DMG causes Kernel Panic on MacBook Pro with Mac OS 10.14.2. What should I do?

Hi all,

What is the best way to configure Java and Safari for interactive 3D plots under Mavericks using the JMole Applet?

Regards,

Adam Hausknecht Department of Mathematics UMass Dartmouth

Hi all,

I tried Ivan Andrus's suggestion (see above) and have discovered that there is a problem with the latest version of ImageMagick. When I downgraded to "ImageMagick-6.7.5" from "ImageMagick-6.7.8" (the current version), the "animate" does work in Sage 5.1 when Sage is started from the Terminal !

It seems that "ImageMagick-6.7.8 was built against a different version of "libpng" than was "ImageMagick-6.7.5" and this is causing the memory errors.

Thanks and regards,

Adam Hausknecht Department of Mathematics UMass Dartmouth

Hi all,

I am running the 64-bit app version Sage 5.1 on a MacBookPro with Mac OS Lion.

I installed ImageMagick and verified that it is working. However, Sage "animate" command reported that ImageMagick must not be installed.

I then copied "convert" to "/tmp/sage-mac-app/local/bin" as suggested above and the "animate" command still failed and reported the error shown below:

dyld: Library not loaded: /ImageMagick-6.7.8/lib/libMagickCore.5.dylib Referenced from: /Applications/Sage-5.1-OSX-64bit-10.6.app/Contents/Resources/sage/local/bin/convert Reason: image not found /Applications/Sage-5.1-OSX-64bit-10.6.app/Contents/Resources/sage/local/bin/sage-native-execute: line 8: 574 Trace/BPT trap: 5 "$@" Traceback (most recent call last): File "<stdin>", line 1, in <module> File "_sage_input_4.py", line 10, in <module> exec compile(u'open("___code___.py","w").write("# -- coding: utf-8 -*-\n" + _support_.preparse_worksheet_cell(base64.b64decode("YT1hbmltYXRlKFtzaW4oeCArIGZsb2F0KGspKSBmb3IgayBpbiBzcmFuZ2UoMCwyKnBpLDAuMyldLHhtaW49MCwgeG1heD0yKnBpLCBmaWdzaXplPVsyLDFdKQphLnNob3coKQ=="),globals())+"\n"); execfile(os.path.abspath("___code___.py")) File "", line 1, in <module>

File "/private/var/folders/31/r_2f8ryd5ks7xb80nyrbj2cc0000gn/T/tmpS3zCmv/___code___.py", line 4, in <module> exec compile(u'a.show() File "", line 1, in <module>

File "/Applications/Sage-5.1-OSX-64bit-10.6.app/Contents/Resources/sage/local/lib/python2.7/site-packages/sage/plot/animate.py", line 457, in show self.gif(delay = delay, iterations = iterations) File "/Applications/Sage-5.1-OSX-64bit-10.6.app/Contents/Resources/sage/local/lib/python2.7/site-packages/sage/plot/animate.py", line 400, in gif raise OSError, msg OSError: Error: Neither ImageMagick nor ffmpeg appears to be installed. Saving an animation to a GIF file or displaying an animation requires one of these packages, so please install one of them and try again. See www.imagemagick.org and www.ffmpeg.org for more information. --------------------------------------------------------------*

I also tried to create a link to "convert " in "/tmp/sage-mac-app/local/bin" but this also failed with an error also stating that "ImageMagick" was not installed.

At this point I don't know what else to try! Is there anyway that ImageMagick could be included in the Sage distributions in the future?

Regards

Adam Hausknecht Department of Mathematics UMass Dartmouth

Hi all,

Thanks for your responses! Om my MacBook Pro Intel Core I7, I had to change the suggested lines of code to:

import sys sys.path.append('/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages')

import visual

However, when this is evaluated by Sage, I get the error message:

Traceback (most recent call last): File "<stdin>", line 1, in <module> File "_sage_input_19.py", line 10, in <module> exec compile(u'open("___code___.py","w").write("# -- coding: utf-8 --\n" + _support_.preparse_worksheet_cell(base64.b64decode("aW1wb3J0IHN5cwpzeXMucGF0aC5hcHBlbmQoJy9MaWJyYXJ5L0ZyYW1ld29ya3MvUHl0aG9uLmZyYW1ld29yay9WZXJzaW9ucy8yLjcvbGliL3B5dGhvbjIuNy9zaXRlLXBhY2thZ2VzJykKaW1wb3J0IHZpc3VhbA=="),globals())+"\n"); execfile(os.path.abspath("___code___.py")) File "", line 1, in <module>

File "/private/var/folders/45/450VCFXnGmmTeo+fv0sWMk+++TI/-Tmp-/tmp3XxlCy/___code___.py", line 4, in <module> exec compile(u'import visual File "", line 1, in <module>

File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/visual/__init__.py", line 1, in <module> from .visual_all import * File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/visual/visual_all.py", line 1, in <module> from vis import version File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/vis/__init__.py", line 3, in <module> from .cvisual import (vector, dot, mag, mag2, norm, cross, rotate, ImportError: dlopen(/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/vis/cvisual.so, 2): no suitable image found. Did find:

/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/vis/cvisual.so: mach-o, but wrong architecture

I take this to mean that the visual python package has been compiled for an architecture that is incompatible with Sage.

Note: I used the Mac OS installer at

                 http://vpython.org/contents/download_mac.html

to install Visual Python as a Mac OS Framework; consequently, vPython is not installed in the same manner as most Python packages!

Regards,

Adam Hausknecht

Does or will Sage support the Visual Python (http://vpython.org/) module?

I use it to create 3D examples for several of my courses including Calculus III, Differential Equations, Modern Algebra, Combinatorics and my students use it for projects in both Modern Algebra and Scientific Computation.

Adam Hausknecht, Department of Mathematics, UMass Dartmouth

Hi all,

Maple's parametric plot3d command allows the limits of the second of the two parameters to be functions of the first. For example, to plot the intersection of two circular cylinders enter

c1 := plot3d([cos(t), y, sin(t)], t = 0 .. 2*Pi, y = -sin(t) .. sin(t), color = green)
c2 := plot3d([cos(t), sin(t), z], t = 0 .. 2*Pi, z = -sin(t) .. sin(t), color = blue)
display(c1, c2)

This generates a plot of the intersection region with the portions of the cylinders extending beyond the region removed. Is it possible todo the same with Sage's plot3d commands?

Regards,

Adam Hausknecht

Thanks Jason for the ticket and how to try the new notebook!

Hi all

I found a workaround for my problem. I exported all the JMol plot3d images and then copied and pasted them into the same worksheet as jpegs. I then removed all the output from the worksheet leaving the Sage plotting commands and the jpegs. Now when I print and save the output as a PDF all the plots become part of the PDF.

Note: Pasting the images does not seem to work with a recent version of Firefox but does work with Safari.

Perhaps there is away to automatically change all the JMol 3d plots to jpegs in place. It certainly would be a nice feature.

Thanks for the info about other ways to generate 3D plots.

When I attempt to print a notebook worksheet using either Safari or Chrome containing four plot3D-Jmol images, several are black (not displayed). Is this a memory problem? Is there a way to force the plots to be static images instead of live JMol applets.

Sorry to say this but if this is not fixed I won't be able to use Sage for undergraduate teaching as I must be able to post PDF's of examples easily!

Prof. Adam Hausknecht Department of Mathematics UMass Dartmouth