Stream: brlcad

Topic: Google Code-in

Himanshu (Dec 05 2019 at 06:45):

hey @Jeffrey Liu :)

Jeffrey Liu (Dec 05 2019 at 06:47):

Hey @Himanshu Sekhar Nayak :)

Himanshu (Dec 05 2019 at 13:59):

@Daniel Rossberg
himanshu@asus:~ $ gcc --version gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516 Copyright (C) 2016 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

DifferentMoods (Dec 05 2019 at 15:41):

How can I download BRL-CAD on MAC? When I will open the programm it says 'the window closes in 5 seconds' and then the programm is closed..

Mayank Goyal (Dec 05 2019 at 16:20):

try taking help of this site https://brlcad.org/wiki/Compiling/XCode

Mayank Goyal (Dec 05 2019 at 16:22):

Someone also has encountered the same problem and has asked for help(https://sourceforge.net/p/brlcad/support-requests/117/)

Mayank Goyal (Dec 05 2019 at 16:23):

One solution given there is to download X11

Shantanu Gupta (Dec 05 2019 at 16:24):

Sir pls check the pending tasks as 20hrs left only for deadline and i have many lined up

Mayank Goyal (Dec 05 2019 at 16:24):

Sir pls check the pending tasks as 20hrs left only for deadline and i have many lined up

Sir, for me also (https://codein.withgoogle.com/dashboard/task-instances/4605933116719104/)

Victor Veytsman (Dec 05 2019 at 19:29):

Hey y'all, I'm vityavv (working on the about page), and just submitted the task for review

Sean (Dec 06 2019 at 16:08):

@DifferentMoods do you not get two windows that then display? click the "Details" arrow and see what it says.

Sean (Dec 06 2019 at 16:10):

@Shantanu Gupta and @Mayank Goyal you don't need to ask -- reviews are done in order by the assigned mentors. in this case, the librecad folks haven't gotten to their reviews yet for today. looks like you submitted shortly after they completed their last round of daily reviews.

Sean (Dec 06 2019 at 16:11):

hello @Victor Veytsman !

Simon Letsoalo (Dec 09 2019 at 19:07):

hello!

Himanshu (Dec 09 2019 at 19:07):

hey @Simon Letsoalo what's up :)

Simon Letsoalo (Dec 09 2019 at 19:10):

nothing much @Himanshu Sekhar Nayak just trying to complete a task

Simon Letsoalo (Dec 09 2019 at 19:20):

I'm intrested in the Model the word "BRL-CAD" task!

Himanshu (Dec 09 2019 at 19:27):

I'm intrested in the Model the word "BRL-CAD" task!

yeah go on and let others too know if you face any difficulties :)

Mayank Goyal (Dec 11 2019 at 05:04):

how can I render in appleseed

Mayank Goyal (Dec 11 2019 at 05:05):

I have imported my sphere.obj file in the assembly and tried to give it a color but when I clicked render, the screen went pink

Jeffrey Liu (Dec 11 2019 at 05:14):

As I mentioned earlier, the pink indicates that your sphere has no material, and since your screen is completely pink, you must zoom out to view the entire sphere. You can explore the Cornell Box example to see how it is set up, and this may help as well: https://appleseedhq.net/docs/tutorials/gettingstarted.html

Sumagna Das (Dec 11 2019 at 05:37):

hey daniel, i am gonna start another "remove throw() statements". so will there be a problem if there are the previous changes in the patch files or do i need to keep those changes?

Mayank Goyal (Dec 11 2019 at 08:51):

error-1.PNG

Jeffrey Liu (Dec 11 2019 at 13:32):

@Mayank Goyal This is the "error" that I mentioned above, which can be resolved through the steps that I provided.

Mayank Goyal (Dec 11 2019 at 13:38):

I have completed it and submitted it for review

Sumagna Das (Dec 11 2019 at 17:40):

hey sean cna you help me?

Himanshu (Dec 11 2019 at 17:41):

don't ask to ask

Himanshu (Dec 11 2019 at 17:41):

others can help too :)

Sumagna Das (Dec 11 2019 at 17:41):

ok

Sumagna Das (Dec 11 2019 at 17:42):

do i have to keep the changes of the previous "remove throw() statements" tasks in the patch of the next tasks?

Sumagna Das (Dec 11 2019 at 17:43):

anyone please help me

Sumagna Das (Dec 11 2019 at 17:43):

on this

Himanshu (Dec 11 2019 at 17:44):

do i have to keep the changes of the previous "remove throw() statements" tasks in the patch of the next tasks?

hmm this will make the previous ones and later ones merged together

Himanshu (Dec 11 2019 at 17:44):

I can suggest to only keep the later ones

Sumagna Das (Dec 11 2019 at 17:46):

is there a way to include only specific files?

Sumagna Das (Dec 11 2019 at 17:50):

in the patch file?

Himanshu (Dec 11 2019 at 17:50):

(deleted)

Sumagna Das (Dec 11 2019 at 17:51):

what?

Himanshu (Dec 11 2019 at 17:51):

may be but idk

Himanshu (Dec 11 2019 at 17:51):

what I had done just redo the changes

Sumagna Das (Dec 11 2019 at 17:51):

what?

Sumagna Das (Dec 11 2019 at 17:52):

i think i will keep them

Himanshu (Dec 11 2019 at 17:52):

may be @Daniel Rossberg knows how not to merged later ones with previous ones

Sumagna Das (Dec 11 2019 at 17:52):

if the mentor says that i need to remove them, i wiil remove them and submit again for review.

Sumagna Das (Dec 11 2019 at 17:53):

dont tag them unnecessarily

Sumagna Das (Dec 11 2019 at 17:53):

they will get notification for that

Himanshu (Dec 11 2019 at 17:54):

and I can know how not to merge later ones with previous ones

Himanshu (Dec 11 2019 at 17:54):

not for you :/

Sumagna Das (Dec 11 2019 at 17:54):

ok

Sumagna Das (Dec 11 2019 at 17:55):

i will have to see whether to submit the changes with the previous ones or not

Sumagna Das (Dec 11 2019 at 17:57):

my ubuntu crashed on me without any reason yesterday

Himanshu (Dec 11 2019 at 17:57):

:\

Sumagna Das (Dec 11 2019 at 17:59):

i am working on another task

Sumagna Das (Dec 11 2019 at 17:59):

you?

Himanshu (Dec 11 2019 at 18:00):

I am working on BRL-CAD Lua binding: Fixing hellobrlcad test program

Sumagna Das (Dec 11 2019 at 18:00):

oh great

Sumagna Das (Dec 11 2019 at 18:43):

hello himanshu

Himanshu (Dec 11 2019 at 18:44):

hey :)

Chiranjiv Singh Malhi (Dec 11 2019 at 18:44):

Hello

Himanshu (Dec 11 2019 at 18:47):

@Daniel Rossberg I am unable to find ::Title(). Am I missing something ?

Sumagna Das (Dec 11 2019 at 18:47):

btw himanshu, i found a way to include specific files in the patch

Sumagna Das (Dec 11 2019 at 18:48):

i knew that there would be a way

Daniel Rossberg (Dec 11 2019 at 18:48):

Daniel Rossberg I am unable to find ::Title(). Am I missing something ?

Yes, I told you where to look for it.

Sumagna Das (Dec 11 2019 at 18:49):

thanks for telling me that "may be" there is a way

Himanshu (Dec 11 2019 at 18:53):

Daniel Rossberg I am unable to find ::Title(). Am I missing something ?

Yes, I told you where to look for it.

yeah I searched on src/embeddedlua but still I can't see the function definition

Daniel Rossberg (Dec 11 2019 at 18:55):

You have two possibilities: Think about to which file it would belong to, or use grep.

Sumagna Das (Dec 11 2019 at 18:56):

yea i searched in all the files there is no ::Title()

Daniel Rossberg (Dec 11 2019 at 18:56):

What was your search string?

Sumagna Das (Dec 11 2019 at 18:57):

i use atom btw

Sumagna Das (Dec 11 2019 at 18:57):

i searched ::Title()

Sumagna Das (Dec 11 2019 at 18:57):

i found one called ::Title(void)

Sumagna Das (Dec 11 2019 at 18:58):

in the src folder

Daniel Rossberg (Dec 11 2019 at 18:58):

Then, use a better search string, you are looking for a Lua, not a C++ function :wink:

Sumagna Das (Dec 11 2019 at 18:58):

this time i changed the string to "::Title" only

Daniel Rossberg (Dec 11 2019 at 18:58):

i found one called ::Title(void)

And? What have you done then?

Himanshu (Dec 11 2019 at 18:59):

i found one called ::Title(void)

which file it is ?

Sumagna Das (Dec 11 2019 at 18:59):

src/coreInterface/ConstDatabase.cpp

Daniel Rossberg (Dec 11 2019 at 18:59):

this time i changed the string to "::Title" only

It still looks very much like C++.

Sumagna Das (Dec 11 2019 at 19:00):

its only in the ConstDatabase.cpp

Daniel Rossberg (Dec 11 2019 at 19:01):

its only in the ConstDatabase.cpp

And? Do you have an idea what the code in this file does?

Sumagna Das (Dec 11 2019 at 19:01):

we are talking about rt^3, right?

Sumagna Das (Dec 11 2019 at 19:01):

i think it creates , stores or does something related databases?

Sumagna Das (Dec 11 2019 at 19:02):

as its name implies

Sumagna Das (Dec 11 2019 at 19:03):

right?

Daniel Rossberg (Dec 11 2019 at 19:03):

What do you think which database is meant?

Daniel Rossberg (Dec 11 2019 at 19:04):

However, what I meant is, how does this Lua stuff work? Do you have an idea when looking at this file?

Sumagna Das (Dec 11 2019 at 19:04):

i dont know. geometry/database file?

Sumagna Das (Dec 11 2019 at 19:04):

i dont know much about lua

Sumagna Das (Dec 11 2019 at 19:05):

i tried to learn for trying it on a gaming platform named Roblox

Sumagna Das (Dec 11 2019 at 19:05):

but i didnt

Himanshu (Dec 11 2019 at 19:05):

what according to me is if :Title() is Lua function then definitely it shall look like this function name_of_the_class:Title() .... end

Sumagna Das (Dec 11 2019 at 19:05):

ok

Himanshu (Dec 11 2019 at 19:06):

and here database is an object when called to Title() like database:Title()

Sumagna Das (Dec 11 2019 at 19:07):

ok

Sumagna Das (Dec 11 2019 at 19:08):

i dont know much about lua except that it is based on c and that it is an embedded scripting language

Sumagna Das (Dec 11 2019 at 19:09):

anyways you guys continue

Sumagna Das (Dec 11 2019 at 19:10):

i was going for the c++ way

Daniel Rossberg (Dec 11 2019 at 19:11):

It looks like you still don't what the function name is, i.e. for which string you shall look for in src/embeddedLua.

Sumagna Das (Dec 11 2019 at 19:11):

honestly talking, i also really dont know

Himanshu (Dec 11 2019 at 19:11):

It looks like you still don't what the function name is, i.e. for which string you shall look for in src/embeddedLua.

yeah

Daniel Rossberg (Dec 11 2019 at 19:13):

i was going for the c++ way

embeddedLua is a C++ library, which implements an extension for an interpreter. You won't find it very often that you program C++ to do something in C++. E.g., BRL-CAD is about geometries ;)

Sumagna Das (Dec 11 2019 at 19:13):

ok

Daniel Rossberg (Dec 11 2019 at 19:14):

It looks like you still don't what the function name is, i.e. for which string you shall look for in src/embeddedLua.

yeah

Okay, I'll help you here: The string you have to look for is "Title". Surprised?

Himanshu (Dec 11 2019 at 19:14):

but I searched that

Daniel Rossberg (Dec 11 2019 at 19:15):

And? Which file in src/embeddedLua contains "Title"?

Sumagna Das (Dec 11 2019 at 19:15):

luadatabase.cpp?

Himanshu (Dec 11 2019 at 19:16):

luadatabase.cpp?

but there you will find const char* title which is not a function

Sumagna Das (Dec 11 2019 at 19:16):

static int Title

Sumagna Das (Dec 11 2019 at 19:16):

i found

Sumagna Das (Dec 11 2019 at 19:17):

is that the one?

Sumagna Das (Dec 11 2019 at 19:17):

line 54

Himanshu (Dec 11 2019 at 19:17):

is that a function ?

Himanshu (Dec 11 2019 at 19:17):

that's a static var

Daniel Rossberg (Dec 11 2019 at 19:18):

luadatabase.cpp?

but there you will find const char* title which is not a function

Really? I have

~/Devel/BRL-CAD/rt^3/src/embeddedLua> grep Title *
luadatabase.cpp:static int Title
luadatabase.cpp:    lua_pushstring(luaState, database->Title());
luadatabase.cpp:    lua_pushstring(luaState, "Title");
luadatabase.cpp:    lua_pushcfunction(luaState, Title);

There is no "const char* title".

Sumagna Das (Dec 11 2019 at 19:18):

thats a function

Sumagna Das (Dec 11 2019 at 19:18):

yea that one

Sumagna Das (Dec 11 2019 at 19:18):

static int Title
(
lua_State* luaState
) {
Database* database = GetDatabase(luaState);

lua_pushstring(luaState, database->Title());

return 1;

}

Daniel Rossberg (Dec 11 2019 at 19:19):

The point is, that there is a static function Title() defined. Static means that it is used in this file only, but where?

Daniel Rossberg (Dec 11 2019 at 19:22):

It should be a line which contains the string (i.e. Function name) "Title" too.

Himanshu (Dec 11 2019 at 19:25):

like this lua_pushstring(luaState, "Title");

Daniel Rossberg (Dec 11 2019 at 19:26):

like this lua_pushstring(luaState, "Title");

Not really (or almost?). "Title" is a string, we are looking for a function called Title.

Himanshu (Dec 11 2019 at 19:30):

or this lua_pushcfunction(luaState, Title);

Daniel Rossberg (Dec 11 2019 at 19:31):

There are 4 lines containing the string Title:

• luadatabase.cpp:static int Title
• lua_pushstring(luaState, database->Title());
• lua_pushstring(luaState, "Title");
• lua_pushcfunction(luaState, Title);

The first one defines the function.
The second one is a call of an object method, but the here defined Title() is a simple function.
The third one is a string.

Sumagna Das (Dec 11 2019 at 19:33):

yup

Sumagna Das (Dec 11 2019 at 19:36):

btw daniel should i have included the previous changes from the "remove throw()" task in the later tasks of "remove throw ()"?

Daniel Rossberg (Dec 11 2019 at 19:41):

btw daniel should i have included the previous changes from the "remove throw()" task in the later tasks of "remove throw ()"?

No, you did it fine.

Daniel Rossberg (Dec 11 2019 at 19:45):

or this lua_pushcfunction(luaState, Title);

Note the lua_pushstring(luaState, "Title"); in the line before. This part of the code connects the string "Title" with the function Title() defined in luadatabase.cpp. Lua is an interpreted language. When the interpreter finds the string "Title" at an appropriate place, it calls the Title() function.

Sumagna Das (Dec 11 2019 at 19:46):

no, for the next remove tasks

Sumagna Das (Dec 11 2019 at 19:46):

cuz i have claimed one

Daniel Rossberg (Dec 11 2019 at 19:49):

@Sumagna Das You did it fine, really. You removed the part already contained in "A - C" in your patch, which makes it easier to apply them after each other.

Sumagna Das (Dec 11 2019 at 19:49):

https://codein.withgoogle.com/dashboard/task-instances/5344642015428608/ like for this one

Sumagna Das (Dec 11 2019 at 19:50):

does the patch has to contain the previous a-c files? or they dont have to?

Himanshu (Dec 11 2019 at 19:50):

or this lua_pushcfunction(luaState, Title);

Note the lua_pushstring(luaState, "Title"); in the line before. This part of the code connects the string "Title" with the function Title() defined in luadatabase.cpp. Lua is an interpreted language. When the interpreter finds the string "Title" at an appropriate place, it calls the Title() function.

so in simple words string "Title" search for function Title() okay

Himanshu (Dec 11 2019 at 19:54):

and what about this lua_pushstring(luaState, database->Title()); . Here a string should be passed but a object method has been called

Daniel Rossberg (Dec 11 2019 at 19:56):

and what about this lua_pushstring(luaState, database->Title()); . Here a string should be passed but a object method has been called

In this part of the code, the return value of database->Title(), a string, is pushed on the Lua stack. This value becomes the return value of the Lua function.

Himanshu (Dec 11 2019 at 20:21):

yeah I got that where is the error

Himanshu (Dec 11 2019 at 20:21):

thanks @Daniel Rossberg for helping me

Himanshu (Dec 11 2019 at 20:23):

since these are all the BRLCAD stuff so it should be in BRLCAD "namespace"

Himanshu (Dec 11 2019 at 20:24):

btw thanks for pointing out

Daniel Rossberg (Dec 11 2019 at 20:26):

What I told you wasn't helpful for this particular bug, but maybe for analyzing somebody else's code.

Himanshu (Dec 11 2019 at 20:28):

@Daniel Rossberg here it is h1manshu@asus:~/brlcad/rt^3/build $ tests-bin/hellobrlcad ~/brlcad/brlcad-code/build/share/db/cray.g Hello Cray X-MP section

Daniel Rossberg (Dec 11 2019 at 20:30):

Looks like you can submit the patch now. A one-liner?

Himanshu (Dec 11 2019 at 20:31):

yes

Himanshu (Dec 11 2019 at 20:31):

one liner

Himanshu (Dec 11 2019 at 20:32):

okay then submitting

Himanshu (Dec 11 2019 at 20:34):

What I told you wasn't helpful for this particular bug, but maybe for analyzing somebody else's code.

btw have you written those codes ?

Daniel Rossberg (Dec 11 2019 at 20:36):

It was written in 2017's Google Code in.

Himanshu (Dec 11 2019 at 20:37):

wow

Himanshu (Dec 11 2019 at 20:37):

:)

Daniel Rossberg (Dec 11 2019 at 20:37):

I've just committed the A - C and C - F parts of the remove throw task.

Himanshu (Dec 11 2019 at 20:42):

btw I am thinking what to do next

Himanshu (Dec 11 2019 at 20:45):

yes

done

Daniel Rossberg (Dec 11 2019 at 20:48):

btw I am thinking what to do next

There is one Lua task left: "BRL-CAD Lua binding: Object"
I plan for more, depending on how this one works. There you need a basic understanding on how the Lua embedding works (but still on copy-n-paste level).

At the other hand, you could do the modelling tutorials to learn more about BRL-CAD.

Himanshu (Dec 11 2019 at 20:52):

okay I will

Daniel Rossberg (Dec 11 2019 at 20:53):

since these are all the BRLCAD stuff so it should be in BRLCAD "namespace"

BTW, BRLCAD is not a namespace but a table. We have Lua here ;)

Himanshu (Dec 11 2019 at 20:53):

I thought it is a namespace

Himanshu (Dec 11 2019 at 20:53):

now I understand

Himanshu (Dec 11 2019 at 20:54):

I will see some examples how binding works

Himanshu (Dec 11 2019 at 21:06):

bye

Himanshu (Dec 11 2019 at 21:06):

see you later

Daniel Rossberg (Dec 11 2019 at 21:09):

The table BRLCAD contains another table at index database which has a function at index Title which has a table as parameter. Therfore, it's in fact BRLCAD["database"]["Title"](BRLCAD["database"]). Now BRLCAD["database"] can be written as BRLCAD.database, and if the first parameter of a table function is the table itself, this can be written as :, i.e. BRLCAD.database:Title().

BTW, BRLCAD is an entry in the global table.

Daniel Rossberg (Dec 11 2019 at 21:09):

bye

Daniel Rossberg (Dec 11 2019 at 21:21):

@Himanshu Sekhar Nayak Committed your patch.

Sean (Dec 11 2019 at 21:21):

I'm not familiar with that syntax...

Sean (Dec 11 2019 at 21:22):

so there's a global table called BRLCAD?

Sean (Dec 11 2019 at 21:22):

OOoooh.. that's lua in a c-string

Sean (Dec 11 2019 at 21:23):

haha, got it. was wondering wth kind of c++20 syntax they're introducing .. ;)

Daniel Rossberg (Dec 11 2019 at 21:23):

No, there is a global table which has an index "BRLCAD" ...
In Lua, everything is a table.

Daniel Rossberg (Dec 11 2019 at 21:23):

That's all valid Lua syntax.

Sean (Dec 11 2019 at 21:23):

gotcha. I was mostly just baffled by the X.Y:Z syntax

Sean (Dec 11 2019 at 21:24):

haven't done a whole lot with lua from a non-user side

SHIVANG AGRAWAL (Dec 15 2019 at 08:31):

hello!

SHIVANG AGRAWAL (Dec 15 2019 at 08:32):

"Hi, I'm participating in GCI. The Appleseed tasks sound really interesting to me!"

Sean (Dec 16 2019 at 05:58):

@SHIVANG AGRAWAL welcome, and glad to hear it! Please feel free to ask questions about your tasks, or just talk with others about development and your gci experience. Cheers!

Sumagna Das (Dec 16 2019 at 11:19):

hey chiranjiv, hows it going?

Chiranjiv Singh Malhi (Dec 16 2019 at 11:46):

Hi @Sumagna Das . Its going good , what about you

Himanshu (Dec 17 2019 at 19:03):

@Daniel Rossberg so lua is basically a table where push and pop stack operation can go on ?

Daniel Rossberg (Dec 17 2019 at 19:04):

The central data storage is a stack data structure.

Himanshu (Dec 17 2019 at 19:04):

oh..

Daniel Rossberg (Dec 17 2019 at 19:06):

It's part of the struct lua_State.

Himanshu (Dec 17 2019 at 19:22):

@Daniel Rossberg are you facing any cmake .. error while building rt^3

Himanshu (Dec 17 2019 at 19:22):

https://paste.ofcode.org/E2b4wGYvzvdU278CTBw8BD

Himanshu (Dec 17 2019 at 19:22):

?

Himanshu (Dec 17 2019 at 19:29):

btw I am At revision 74503.

Daniel Rossberg (Dec 17 2019 at 19:30):

Let me see ...

Daniel Rossberg (Dec 17 2019 at 19:43):

Okay, update and try again.

Himanshu (Dec 17 2019 at 19:45):

yeah fine now

Himanshu (Dec 17 2019 at 20:13):

@Daniel Rossberg what -1 mean here const char* name = luaL_checkstring(luaState, -1); ?

Himanshu (Dec 17 2019 at 20:27):

Also after adding attribute methods, how I can check if everything is compiling fine ?(like cmake .., make or any )

Himanshu (Dec 17 2019 at 20:51):

Also is it compulsory to add methods from protected area ?

Himanshu (Dec 17 2019 at 20:54):

btw I made some progress but I think there are some functions still left https://paste.ofcode.org/39VaDSs2WdigC3skcBe66u9

Sumagna Das (Dec 18 2019 at 07:31):

Hey @Sean was the image too small or too big(210x210 pixels)?

Sumagna Das (Dec 18 2019 at 07:31):

What errors are you talking about?

Sumagna Das (Dec 18 2019 at 07:32):

I will try to fix them

Sean (Dec 18 2019 at 07:34):

nothing major, but one I noticed right away is that you print into fp without opening it right after the "Load the specified ..." comment

Sean (Dec 18 2019 at 07:35):

it's not at all clear what that loop is even doing.

Sean (Dec 18 2019 at 07:36):

you then have a bizarre looping condition

     for(x =-1000,i=0;x<=1000 || i<210;x+=10,i++) {
       for(y=-1000,j=0;y<=1000 || j<210;y+=10,j++){
         float z=10000;

Sean (Dec 18 2019 at 07:39):

you also set the 'ap' callback parameters over and over and over to the same thing. should only need to set them once.

Sean (Dec 18 2019 at 07:41):

lastly, your style/formatting is a bit inconsistent. see HACKING for explanation, but the gist is to make any new code look just like the rest of the file.

Sumagna Das (Dec 18 2019 at 07:45):

Ok

Mrinal Jain (Dec 18 2019 at 12:51):

Hey, I'm participating GCI, and I'm trying to run OGV on mac. But I get errors relating to fibers, can anyone provide any tips?

Sean (Dec 18 2019 at 14:25):

@Mrinal Jain can you share the errors? This guys are great with OGV @pooh (inder) @Panda (Gauravjeet Singh) @Shubham Rathore

Himanshu (Dec 18 2019 at 15:39):

Daniel Rossberg what -1 mean here const char* name = luaL_checkstring(luaState, -1); ?

Is that mean it will read the string in backward direction or something like that ? @Daniel Rossberg

Himanshu (Dec 18 2019 at 16:12):

btw luaL_checkstring() checks if arguments passed are strings or not and returns the string.
got it

Sean (Dec 19 2019 at 02:49):

@Himanshu Sekhar Nayak did you find the declaration or definition of luaL_checkstring()?

Sean (Dec 19 2019 at 02:49):

that should explain what the second parameter is for

Sean (Dec 19 2019 at 02:50):

ah, and I see that was your "btw" :) carry on.

Himanshu (Dec 19 2019 at 17:09):

Hey @Daniel Rossberg can you show me an example or something to write tests for testing hellobrlcad ?

Sumagna Das (Dec 19 2019 at 17:20):

Hey himanshu

Himanshu (Dec 19 2019 at 17:23):

or something like script ?

Sumagna Das (Dec 19 2019 at 17:35):

hey daniel does appleseed take a lot of time to build

Daniel Rossberg (Dec 19 2019 at 17:40):

Hey Daniel Rossberg can you show me an example or something to write tests for testing hellobrlcad ?

hellobrlcad doesn't need to be tested, but it is a kind of test for BRLCAD.database:Title(). Change the Lua code there to test something else.

Daniel Rossberg (Dec 19 2019 at 17:41):

hey daniel does appleseed take a lot of time to build

Can't say. I've never tried to compile it. Is there a task to compile it? I though, Appleseed has to be installed from a binary package.

Sumagna Das (Dec 19 2019 at 17:42):

https://codein.withgoogle.com/dashboard/task-instances/6564257471135744/

Sumagna Das (Dec 19 2019 at 17:43):

in this one it says "download appleseed and install from source"

Sumagna Das (Dec 19 2019 at 17:43):

For this set of tasks, you'll need to download and install appleseed from source

Daniel Rossberg (Dec 19 2019 at 17:46):

Okay. However, I've never compiled it from source.
It has a CMake configuration. Did you already tried it?

Sumagna Das (Dec 19 2019 at 17:46):

i was asking because
1) Its taking a lot of time
2) i will not use the laptop tomorrow because i am having eye problems

Daniel Rossberg (Dec 19 2019 at 17:54):

Then I'm afraid, I can't help you.

Sumagna Das (Dec 19 2019 at 17:54):

ok

Sumagna Das (Dec 19 2019 at 17:56):

i am having eye problems so my mom advised me to give some rest to my eyes as i am straining them very much

Daniel Rossberg (Dec 19 2019 at 17:58):

Get well soon!

Sumagna Das (Dec 19 2019 at 18:01):

btw if anyone can fix the errors tomorrow heres the log and output of CMake

Sumagna Das (Dec 19 2019 at 18:02):

CMakeOutput.log CMakeError.log

Sumagna Das (Dec 19 2019 at 18:02):

sayonara

Sumagna Das (Dec 19 2019 at 18:02):

bye guys

Sumagna Das (Dec 19 2019 at 18:06):

Hey himanshu

Jeffrey Liu (Dec 20 2019 at 06:58):

Hey @Sean @Daniel Rossberg I started the EBM images task set 1 but I'm having some difficulty understanding the task. Initially I thought that the issue was that EBM objects had a reliance on reading the .bw file, but when I was testing some stuff on mged, it seems like DSP objects have a similar reliance on the .dsp file. Am I doing something wrong?

Jeffrey Liu (Dec 20 2019 at 07:08):

So to clarify what I mean, for both the EBM and the DSP objects, after I relocate the .bw or .dsp file respectively, an error occurs when I try to draw either one of them. However, it was my understanding that DSP objects stored the data inside of dsp_bip. I would assume that this is happening because of dsp_datasrc is not actually set to RT_DSP_SRC_OBJ, so am I doing something wrong when importing the DSP object? So far I've just been following https://brlcad.org/wiki/DSP

Thusal Ranawaka (Dec 20 2019 at 10:31):

@SeanHey Sean, I abandon the previous task until you come back in and I claimed another task called " Import BRL-CAD model to FreeCAD". And I will submit it for review tonight or before as soon as I can.

Thusal Ranawaka (Dec 20 2019 at 14:51):

@Sean I submit the task for review. Also, can I know some priority projects that I can do which contains less coding?

Thusal Ranawaka (Dec 20 2019 at 15:47):

@Sean It's time to sleep see ya tomorrow and review my work when you got your time.

Thusal Ranawaka (Dec 20 2019 at 15:47):

@Sean And please answer my problems if you can.

Himanshu (Dec 20 2019 at 19:39):

Hey @Sean What's up :-)

Jeffrey Liu (Dec 21 2019 at 00:22):

So to clarify what I mean, for both the EBM and the DSP objects, after I relocate the .bw or .dsp file respectively, an error occurs when I try to draw either one of them. However, it was my understanding that DSP objects stored the data inside of dsp_bip. I would assume that this is happening because of dsp_datasrc is not actually set to RT_DSP_SRC_OBJ, so am I doing something wrong when importing the DSP object? So far I've just been following https://brlcad.org/wiki/DSP

Oh I think I got it, I didn't realize that the 'f' in the command stood for "file," which I believe is stored to dsp_datasrc. I think if I were to use 'o' instead, it would store everything as an object?

Jeffrey Liu (Dec 21 2019 at 00:49):

Sorry, I'm still a little confused by the task at hand... it mentions modifying import5() and export5() so that datasrc and bip are written properly, but it seems like dsp_bip and dsp_datasrc are being used as well outside of those two functions - is it necessary for me to edit those as well?

Jeffrey Liu (Dec 21 2019 at 00:56):

Also, it looks like dsp_bip is being written from ebm_get_data(), and modifying it is part of a later task? I'm a bit confused - could someone explain what exactly I'm supposed to do?

Tan Sharma (Dec 21 2019 at 03:33):

Hey,
I am participating in the GCI. I feel that the tasks offered by BRL-CAD are extremely interesting to work on.

Thusal Ranawaka (Dec 21 2019 at 03:33):

@Sean Hey Sean, Can you name me some Priority Projects that I can do something like less coding? Also review my work when you got your time.

Thusal Ranawaka (Dec 21 2019 at 03:34):

Tan how much tasks have you done

Sumagna Das (Dec 21 2019 at 10:46):

(deleted)

Sumagna Das (Dec 21 2019 at 10:46):

hey @Sean can you extend my task deadline

Sumagna Das (Dec 21 2019 at 10:47):

i was having eye problems so i had to keep away from the laptop

Sumagna Das (Dec 21 2019 at 10:49):

welcome @shubham

Thusal Ranawaka (Dec 21 2019 at 13:01):

@starseeker Hey, Starseeker

Thusal Ranawaka (Dec 21 2019 at 13:03):

Lots of guys are not much online these days.

Jeffrey Liu (Dec 21 2019 at 17:52):

Hi @Sean sorry to bother you, but could you clarify what I should be doing for task #1 of the EBM images task set? I detailed my questions above.

Jeffrey Liu (Dec 21 2019 at 17:53):

I'm still having difficulty understanding what parts I should be modifying

Jeffrey Liu (Dec 21 2019 at 23:00):

Weird, it looks like trying to make a DSP object is calling rt_dsp_import4() instead of rt_dsp_import5(). Is there something I should change to this command? in dsp1.s dsp f dsp-test.dsp 256 256 0 ad 1 0.005

Jeffrey Liu (Dec 22 2019 at 00:47):

@Sean should I be rewriting import5() so that instead of bu_vls_strcpy(&str, (const char*)ep->ext_buf), I do cp = (unsigned char *)ep->ext_buf and then parse the information from there? Otherwise I'm not sure how I would be able to control how to parse for datasrc

Thusal Ranawaka (Dec 22 2019 at 03:14):

@Sean Hey, Sean can you name me some priority tasks?

Thusal Ranawaka (Dec 22 2019 at 06:39):

@Sean Hey Sean, I can't quite understand what have you said in my task.

Jeffrey Liu (Dec 22 2019 at 08:17):

Weird, it looks like trying to make a DSP object is calling rt_dsp_import4() instead of rt_dsp_import5(). Is there something I should change to this command? in dsp1.s dsp f dsp-test.dsp 256 256 0 ad 1 0.005

Never mind, I was confused by the output which said something like rt_dsp_import4(4357); it looks like it's actually calling rt_dsp_import5().

Thusal Ranawaka (Dec 22 2019 at 08:56):

@Sean I think you mean by the task is that my sphere has not much resoluted. So I will try to export in the format that you have mentioned and resubmit the task by tonight.

Thusal Ranawaka (Dec 22 2019 at 08:58):

@Sean Also can you name me some priority tasks with less coding?

Sumagna Das (Dec 22 2019 at 11:19):

/usr/include/OpenImageIO/simd.h:1814:61: error: operator '&&' has no right operand #if defined(ILMBASE_VERSION_MAJOR) && ILMBASE_VERSION_MAJOR >= 2
can anyone tell me why this error is coming

Sumagna Das (Dec 22 2019 at 11:19):

this is followed by /usr/include/OpenImageIO/simd.h:1863:61: error: operator '&&' has no right operand #if defined(ILMBASE_VERSION_MAJOR) && ILMBASE_VERSION_MAJOR >= 2 ^~ /usr/include/OpenImageIO/simd.h:6344:61: error: operator '&&' has no right operand #if defined(ILMBASE_VERSION_MAJOR) && ILMBASE_VERSION_MAJOR >= 2

Thusal Ranawaka (Dec 22 2019 at 16:25):

Hey Sean, Sorry I cannot do what have you said in the task and I commented and submit for review informing the problems I have.

Thusal Ranawaka (Dec 22 2019 at 16:27):

@Sean Hey Sean, Sorry I cannot do what have you said in the task and I commented and submit for review informing the problems I have.

Thusal Ranawaka (Dec 22 2019 at 16:33):

@Daniel Rossberg Dani, How much tasks have you done?

Jeffrey Liu (Dec 22 2019 at 16:41):

He is a mentor...

Thusal Ranawaka (Dec 22 2019 at 16:41):

who

Jeffrey Liu (Dec 22 2019 at 16:41):

Daniel

Thusal Ranawaka (Dec 22 2019 at 16:42):

ok

Jeffrey Liu (Dec 22 2019 at 17:06):

@Vikramaditya Singh in terms of time, I think it really depends on what you're hoping to accomplish and what tasks you want to do. Personally, I've spent a lot of time trying to learn how some of the code works so that I can do the coding tasks with a better understanding.

Jeffrey Liu (Dec 22 2019 at 17:07):

I can't speak much for its comparison with other softwares, but note that BRLCAD is used in many industries. One thing to note, though, is that it uses CSG rather than BREP

Thusal Ranawaka (Dec 23 2019 at 07:32):

@Sean It's not working Sean and I leave a comment and submit for review.

Sumagna Das (Dec 23 2019 at 12:14):

daniel, did it build?

Sumagna Das (Dec 23 2019 at 12:14):

is it 24th december or 23rd december in your local time

Sumagna Das (Dec 23 2019 at 12:17):

(deleted)

Thusal Ranawaka (Dec 23 2019 at 15:27):

@Daniel Rossberg Daniel are you there?

Thusal Ranawaka (Dec 23 2019 at 15:29):

@Daniel Rossberg Daniel I have sent the .step file.

Thusal Ranawaka (Dec 23 2019 at 15:29):

@Daniel Rossberg Please give me a solution to this.

Thusal Ranawaka (Dec 23 2019 at 15:32):

@Daniel Rossberg Daniel are you talking about BRL-CAD 7.26.0 version. Yes, I have downloaded that package.

Daniel Rossberg (Dec 23 2019 at 15:36):

Sheldon?

Thusal Ranawaka (Dec 23 2019 at 15:37):

@Daniel Rossberg What do you mean by Sheldon?

Daniel Rossberg (Dec 23 2019 at 15:37):

The multiple knocking :wink:

Thusal Ranawaka (Dec 23 2019 at 15:37):

box3.step

Thusal Ranawaka (Dec 23 2019 at 15:38):

This is the .step file. Daniel

Thusal Ranawaka (Dec 23 2019 at 15:39):

@Daniel Rossberg Hello

Daniel Rossberg (Dec 23 2019 at 15:50):

Even with the latest version I get Error: ::LoadONBrep(ON_Brep *brep<0x55eb6fb8f380>) not implemented for Curve

Thusal Ranawaka (Dec 23 2019 at 15:51):

Yes, So do I

Thusal Ranawaka (Dec 23 2019 at 15:51):

I submit it for review.

Thusal Ranawaka (Dec 23 2019 at 15:52):

@Daniel Rossberg So it means there is a bug.

Daniel Rossberg (Dec 23 2019 at 15:57):

How did you created the file?

Thusal Ranawaka (Dec 23 2019 at 16:03):

@Daniel Rossberg Using the export option in FreeCAD.

Thusal Ranawaka (Dec 23 2019 at 16:04):

@Daniel Rossberg Hello

Thusal Ranawaka (Dec 23 2019 at 16:09):

@Daniel Rossberg Daniel, I submit task for review.

Thusal Ranawaka (Dec 23 2019 at 16:14):

@Daniel RossbergHello

Thusal Ranawaka (Dec 23 2019 at 16:23):

@Sean Sorry, I can't find a solution.

Thusal Ranawaka (Dec 23 2019 at 16:30):

@Daniel Rossberg Did you succeed in my problem?

Sumagna Das (Dec 24 2019 at 06:57):

hey sean can i use the file from the installation and not from the source code?

Sean (Dec 24 2019 at 06:59):

@Sumagna Das what do you mean?

Sumagna Das (Dec 24 2019 at 07:01):

i mean can i use the installation and not the source code for task #3?

Sean (Dec 24 2019 at 07:01):

Daniel Rossberg So it means there is a bug.

@Thusal Ranawaka did you switch to a box or is it still a sphere? I believe we entirely rely on the 3DM reader in OpenNURBS, so I would not characterize that message as a bug quite so quickly. I suggest trying a box if you haven't.

Sean (Dec 24 2019 at 07:02):

@Sumagna Das you have to give me a lot more context than that. there are lots of task #3's ....

Sumagna Das (Dec 24 2019 at 07:04):

i mean appleseed task #3

Sean (Dec 24 2019 at 07:04):

@Sumagna Das if you are referring to appleseed, yes you can just use an installation -- you do not need to compile everything from source. however, any code you provide does need to be able to compile somehow

Sumagna Das (Dec 24 2019 at 07:04):

its compiling

Sean (Dec 24 2019 at 07:05):

so you'll either have to set up your own build files that uses an installed appleseed or compile everything up (but that is QUITE a task in itself, that's not the intention)

Sumagna Das (Dec 24 2019 at 07:05):

i am gonna use the CMakeLists.txt to configure it for building

Sumagna Das (Dec 24 2019 at 07:06):

errors.png

Sumagna Das (Dec 24 2019 at 07:06):

these errors are coming while building appleseed from source

Sean (Dec 24 2019 at 07:11):

Sean I submit the task for review. Also, can I know some priority projects that I can do which contains less coding?

@Thusal Ranawaka this is google CODE-in ... ;) That said, hoping to get a pristine version of the chessboard model -- there are two tasks related to it. But you need to have done all the tutorial tasks first and understood them well enough to do it right.

Himanshu (Dec 24 2019 at 12:31):

Hey @Daniel Rossberg can I get a day extension ?

Sean (Dec 28 2019 at 20:46):

just leave a comment and mark it ready for review. extensions are easy

Himanish k Taneja (Jan 02 2020 at 08:52):

Hi, I am Himanish. I learnt about BRL-CAD through Google Code-in. BRL-CAD is doing such a great job.

Sean (Jan 02 2020 at 08:59):

welcome @Himanish k Taneja ! What's been your favorite task so far?

Aadithya Prakash Goutham (Jan 04 2020 at 06:09):

Hey there. I am pleased to have a task by BRL-CAD on Google Code-in. BRL-CAD is doing a great job.

Sean (Jan 05 2020 at 07:40):

welcome @Aadithya Prakash Goutham !

Shoaib Karnure (Jan 07 2020 at 08:51):

Hi this is Shoaib Karnure. I found out about BRL-CAD through Google Code in. BRL-CAD is doing a fantastic job.

Sean (Jan 07 2020 at 09:03):

@Shoaib Karnure what tasks have you enjoyed or look forward to?

Sean (Jan 07 2020 at 09:04):

@Shoaib Karnure and why do you say BRL-CAD is doing a fantastic job?

Harshil Anand (Jan 18 2020 at 20:19):

Hey guys,
This is Harshil from India and this is my very first participation into GCI. BRL-CAD seemed fascinating to me and excited to get up with tasks.

Himanshu (Jan 18 2020 at 20:54):

Hi @Harshil Anand and welcome to BRLCAD

Jeffrey Liu (Jan 18 2020 at 20:57):

Welcome @Harshil Anand!

Sean (Jan 20 2020 at 06:56):

welcome @Harshil Anand -- what are you working on?

Last updated: Jan 09 2025 at 00:46 UTC