Saving Google Docs/Sheets charts as PDF

Google docs natively supports saving charts as PNG. But if you want to generate high quality images, such as PDF, you can follow the steps below.

1. Go to the Google Spreadsheet page with the chart
2. Open Chrome Developer Tools (from Chrome hamburger menu -- 3 lines menu -- on the top right)
3. Select the "Elements" tab and click on the button "Select an element to inspect it" present on the top left.
4. Click in the chart area.
5. Look at the tree and find the beginning of svg description (e.g. <svg...).
6. Right click on the SVG line and select "Copy as HTML"
7. Paste it to your favorite editor, and save as "MyChart.svg"

You can use image processing tools, such as Photoshop or GIMP to export the files as PDF.

References:
1. http://www.osmanoglu.org/computing/89-how-to-export-google-spreadsheet-charts-as-svg

Google NativeClient on Ubuntu

Initially I tried installing NativeClient (NaCl) on a Ubuntu 32bit VM, but some NaCl tests failed saying specific CPU features needed for NaCl are not available. But later on when setting up a 64bit Ubuntu VM I had to enable Intel VT-X features in BIOS, and this seemed to enable 64bit VM to pass NaCl tests.

Installing NaCl on a 32bit Ubuntu:
Follow the instructions here to download NaCl source using gclient/depot tools: http://code.google.com/p/nativeclient/wiki/Source?tm=4

Once you download everything to nativeclient, you need to run:

make

I had to install g++ libraries too:

sudo apt-get install g++

make failed with some errors:
#include<gelf.h> was throwing an error saying gelf.h was not found.

Installing gelf and libelf did not help.
- sudo apt-get install gelf
- installing libelf from Software center

I had to install libelf-dev from the Ubuntu software center, then the make succeeded.

After make, go to native_client sub directory and run

./scons MODE=opt-linux,nacl

Compiling was successful.
When testing NaCl, just try small_tests, medium_tests and large_tests. run_all_tests argument has some tests specific for 64bit linux, and hence is supposed to fail.

Installing NaCl on a 64bit Ubuntu:
Most of the instructions are same as for 32 bit. When doing a make, I got this error:
make: *** [out/Debug/obj/gen/tc_newlib/lib32/crti.o] Error 1

As per this post: https://groups.google.com/forum/#!topic/native-client-discuss/NJZ2JKWCCCY
we need to install the capability to run x86_32 binaries on a x86_64 machine.

So I had to install :

sudo apt-get install ia32-libs

Then make threw another error:
bits/predefs.h: No such file or directory

This thread gives the solution: http://ubuntuforums.org/showthread.php?t=1877944
we need 32bit libc. We can get it using:

sudo apt-get install libc6-dev-i386

I then got this error:
/usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-linux-gnu/4.7/libstdc++.so when searching for -lstdc++
/usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-linux-gnu/4.7/libstdc++.a when searching for -lstdc++
/usr/bin/ld: cannot find -lstdc++

As per this link, i had to install "g++-multilib"
http://ubuntuforums.org/archive/index.php/t-1604953.html

sudo apt-get install g++-multilib

run_all_tests  does not work unless you put platform=x86-64 as argument for scons

I had to install python-dev package when giving platform=x86-64 for scons.