The cube configuration (facelets) can be accessed directly in the simulator
by declaring the following in a web page:
var acjs_cube = [];
The facelets are stored as a two dimensional array.
The first dimension is the face number which is 0-5 for up, down, front,
back, left & right respectively.
The second dimension is the facelet number as shown in the layout in
the facelets section of the documentation (adjust the numbers so they start
from zero on each face).
The colors are stored as the numbers 10-15 for white, yellow, orange, red,
green & blue respectively (see the colors array in the init function of
AnimCube3.js for the complete list).
The following simple example changes the center facelet on the front face to
blue on a cube displayed in div c1.
The acjs_paint function is used to update the cube display after the change
is made.

<button onclick="update_facelet()">Update</button>

The first cube below does the above update but the change is lost when the reset button (in cube area) is pressed. The second cube also updates acjs_initialCube so that the change is not lost by resetting, this is the same functionality as passing a new facelets parameter to AnimCube.
The following examples show how to save and restore both the configuration (facelets) and position of the cube. To see how it works, make some random twists to layers and also rotate the whole cube, then press Save. Press the reset button in the cube area and then press Restore which will return the cube to the position and configuration that was saved.
|
|
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The following code shows how the above save & restore is done.
var acjs_cube = []; // cube facelets array
var acjs_scube = []; // supercube facelets array
var acjs_paint = []; // paint function (redisplay cube)
var acjs_eye = []; // observer co-ordinate axes (view)
var acjs_eyeX = [];
var acjs_eyeY = [];
var tmp_cube = []; // temp storage for saved info
var tmp_scube = [];
var tmp_pos = {eye:[], eyeX:[], eyeY:[]};
function save(id) {
save_pos(id); // save cube position
copy_cube(tmp_cube, acjs_cube[id]); // save cube facelets
if (id == 'c2') // id c2 is the supercube
copy_cube(tmp_scube, acjs_scube[id]); // save supercube facelets
}
function restore(id) {
restore_pos(id); // restore cube position
copy_cube(acjs_cube[id], tmp_cube); // restore cube facelets
if (id == 'c2')
copy_cube(acjs_scube[id], tmp_scube); // restore supercube facelets
acjs_paint[id](); // redisplay cube
}
function save_pos(id) {
vCopy(tmp_pos.eye, acjs_eye[id]);
vCopy(tmp_pos.eyeX, acjs_eyeX[id]);
vCopy(tmp_pos.eyeY, acjs_eyeY[id]);
}
function restore_pos(id) {
vCopy(acjs_eye[id], tmp_pos.eye);
vCopy(acjs_eyeX[id], tmp_pos.eyeX);
vCopy(acjs_eyeY[id], tmp_pos.eyeY);
acjs_paint[id]();
}
function copy_cube(dest, src) { // copy 6x9 array of 54 facelets
for (var i=0; i < src.length; i++)
dest[i] = src[i].slice();
}
The above code can be combined with a call to AnimCube such than any parameter can be changed without affecting the cube position & config which would normally be reset. With the following two cubes, pressing Update will change the background color. The first one does not restore the position/config so the cube will be reset, the second one does the restore so it will not reset. Make some twists and rotate the cube before pressing the button and compare the results between the two cubes.
The following code shows how to apply params to a cube and keep the
position and config unchanged.
New listeners are created each time AnimCube is called so they are removed
as shown.
var acjs_removeListeners = [];
function change_params(id, params) {
var tmp_cube = [];
save_pos(id);
copy_cube(tmp_cube, acjs_cube[id]);
acjs_removeListeners[id]();
AnimCube3('id=' + id + params);
restore_pos(id);
copy_cube(acjs_cube[id], tmp_cube);
acjs_paint[id]();
}
Another way to make the change is to use the acjs_get_var & acjs_put_var
functions as shown in the following example.
var color1 = '#cccccc';
var color2 = '#888888';
function change_bgcolor(id) {
var color = toggle_color(acjs_get_var[id]('bgColor'));
acjs_put_var[id]('bgColor', color, 's');
acjs_paint[id]();
}
function toggle_color(c) {
return ((c == color1) ? color2 : color1);
}


You are responsible to try your hardest to get stuff right. That’s it. As for prerequisites, it is heavily encouraged that you either are taking or have taken Algebra 1. In addition, please check out the outline and recognize topics you’re not familiar with to be able to ask other members about during our sessions. To remain a member of LPC, you must attend the FMA Qualifier and at least one outreach/community service/club event, including beautification day or freshman orientation.
Meetings at Room S202: Monday & Friday 3:40 PM - 4:45 PM
FMA Qualifier (January 17-23): 25 MC Problems - 75 Minutes
Physics Bowl (March 30 - April 15): 40 MC problems - 45 Minutes


Inspired by Webcomponents.dev All the Ways to Make a Web Component, this is a comparison of coding style, bundle size and performance of 4 different ways to make a Web Component with FicusJS!
The same <my-counter />
web component has been written 4 times in FicusJS using different renderers.
The renderers used are:


Library: Input/output
basic_ios ios_base
A base class that includes the common character-dependent functionality and state required by all streams
#include <ios> namespace std { template<class charT, class traits = char_traits<charT> > class basic_ios; }
The class basic_ios is a base class that includes the common character-dependent functionality and data members required by all streams. It maintains state information that reflects the integrity of the stream and stream buffer. It also maintains the link between the stream classes and the stream buffer classes via the rdbuf() member functions. Classes derived from basic_ios specialize operations for input and output.
namespace std { template<class charT, class traits = char_traits<charT> > class basic_ios : public ios_base { public: typedef typename traits::char_type char_type; typedef traits traits_type; typedef typename traits::int_type int_type; typedef typename traits::off_type off_type; typedef typename traits::pos_type pos_type; operator void*() const; bool operator!() const; iostate rdstate() const; void clear(iostate = goodbit); void setstate(iostate state); bool good() const; bool eof() const; bool fail() const; bool bad() const; void exceptions(iostate); iostate exceptions() const; explicit basic_ios(basic_streambuf<charT, traits>*); virtual ~basic_ios(); basic_ostream<charT, traits>* tie() const; basic_ostream<charT, traits>* tie(basic_ostream <charT, traits>*); basic_streambuf<charT, traits>* rdbuf()const; basic_streambuf<charT, traits>* rdbuf(basic_streambuf <charT, traits>*); basic_ios& copyfmt(const basic_ios&); char_type fill() const; char_type fill(char_type); locale imbue(const locale&); char narrow(char_type, char) const; char_type widen(char) const; protected: basic_ios(); // undefined void init(basic_streambuf<charT, traits>*); // undefined };
char_type
The type char_type is a synonym for type traits::char_type.
int_type
The type int_type is a synonym of type traits::in_type.
off_type
The type off_type is a synonym of type traits::off_type.
pos_type
The type pos_type is a synonym of type traits::pos_type.
traits_type
The type traits_type is a synonym for the template parameter traits.
ios
The type ios is a specialization of basic_ios on char:
typedef basic_ios<char> ios;
wios
The type wios is a specialization of basic_ios on wchar_t:
typedef basic_ios<wchar_t> wios;
explicit basic_ios(basic_streambuf<charT, traits>* sb);
Constructs an object of class basic_ios, assigning initial values to its member objects by calling init(sb). If sb is a null pointer, the stream is placed in error state by setting its badbit.
basic_ios();
Constructs an object of class basic_ios, leaving its member objects uninitialized. The object must be initialized by calling the init member function before using it.
virtual ~basic_ios();
Destroys an object of class basic_ios.
bool bad() const;
Returns true if badbit is set in rdstate().
void clear(iostate state = goodbit);
If (state & exceptions()) == 0, returns. Otherwise, the function throws an object of class ios_base::failure. After the call, returns state == rdstate() if rdbuf() !=0; otherwise, rdstate() == state|ios_base::badbit.
basic_ios& copyfmt(const basic_ios& rhs);
Assigns to the member objects of *this the corresponding member objects of rhs, except that:
rdstate() and rdbuf() are left unchanged
exceptions() is altered last by calling exceptions(rhs.exceptions())
Before copying any parts of rhs, calls each registered callback pair (fn, index) as (*fn)(erase_event,*this, index). After all parts but exceptions() are replaced, calls each callback pair that was copied from rhs as (*fn)(copy_event,*this, index).
| Element | Value |
rdbuf() |
unchanged |
tie() |
rhs.tie() |
rdstate() |
unchanged |
exceptions() |
rhs.exceptions() |
flags() |
rhs.flags() |
width() |
rhs.width() |
precision() |
rhs.precision() |
fill() |
rhs.fill() |
getloc() |
rhs.getloc() |
bool eof() const;
Returns true if eofbit is set in rdstate().
iostate exceptions() const;
Returns a mask that determines what elements set in rdstate() cause exceptions to be thrown.
void exceptions(iostate except);
Sets the exception mask to except, then calls clear(rdstate()).
bool fail() const;
Returns true if failbit or badbit is set in rdstate().
char_type fill() const;
Returns the character used to pad (fill) an output conversion to the specified field width.
char_type fill(char_type fillch);
Replaces the stream's fill character by fillch and returns its previous value.
bool good() const;
Returns rdstate() == goodbit.
locale imbue(const locale& loc);
Calls ios_base::imbue (loc). If rdbuf() != 0, calls
rdbuf()->pubimbue(loc) and returns the previously saved value.
void init(basic_streambuf<charT,traits>* sb);
Performs initialization according to the following table:
| Element | Value |
rdbuf() |
sb |
tie() |
0 |
rdstate() |
sb ? goodbit : badbit |
exceptions() |
goodbit |
flags() |
skipws | dec |
width() |
0 |
precision() |
6 |
fill() |
widen(' ') |
getloc() |
locale::global() |
char narrow(charT c, char dfault) const;
Returns:
use_facet<ctype<char_type> >(getloc()).narrow (c, dfault)
bool operator!() const;
Returns fail().
basic_streambuf<charT,traits>* rdbuf() const;
Returns a pointer to the stream buffer associated with the stream.
basic_streambuf<charT,traits>* rdbuf(basic_streambuf<charT,traits>* sb);
Associates a stream buffer with the stream. All the input and output is directed to this stream buffer. If sb is a null pointer, the stream is placed in error state by setting badbit.
iostate rdstate() const;
Returns the control state of the stream.
void setstate(iostate state);
Calls clear(rdstate() | state).
basic_ostream<charT,traits>* tie() const;
Returns an output sequence that is tied to (synchronized with) the sequence controlled by the stream buffer.
basic_ostream<charT,traits>* tie(basic_ostream<charT,traits>* tiestr);
Saves the tie() value, then replaces it by tiestr and returns the value previously saved.
operator void*() const;
Returns:
fail() ? (void*)0 : (void*)1;
charT widen(char c) const;
Uses use_facet< ctype<char_type> >(getloc()).widen(c) to convert a narrow character to a wide character.
ios_base, basic_istream, basic_ostream, basic_streambuf, char_traits
ISO/IEC 14882:1998 -- International Standard for Information Systems --Programming Language C++, Section 27.4.4


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GENESIS 13:10
by The Israel BibleLot looked about him and saw how well watered was the whole plain of the Yarden, all of it—this was before Hashem had destroyed Sodom and Gomorrah—all the way to Zoar, like the garden of Hashem, like the land of Egypt.GENESIS 13:10 (The Israel Bible™)
After conflict arises between their shepherds, it becomes clear that Avraham and Lot must separate. Lot chooses the fertile, well-watered plain of the Yarden, leaving Canaan, a land with meager water sources of its own, to Avraham. The area that Lot chooses, though lush and bountiful, was filled with cruel and corrupt inhabitants who are ultimately destroyed in Sodom and Gomorrah. Avraham, on the other hand, settles in the holy Land of Israel, where he begins to fulfill his spiritual calling. Though other places can be attractive, when it comes to sanctity and Godliness there is no better place on earth than Eretz Yisrael.


Examine the following code segment.
public class Thing extends OtherThing { // TODO: Think of better names... }
Which of the following things are not true about this code segment?
There are not hints for this question


{% extends "layout.html" %} {% block title %}UCSB CS TA Evaluations{% endblock %} {% block content %}
This web application was created by Bryce Boe. The source code for this project can be found on GitHub. The source is provided under the New BSD License.
{% endblock %}