Objected Oriented Programming

#1 Posted: 1/18/2023 8:57:31 PM

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Hello!

Brand new to SMath, and I was curious to know if there was a way to simulate creating objects with properties etc. For example, I have a car object that has a speed it's moving at and its weight.

#2 Posted: 1/18/2023 9:35:14 PM

Alvaro Diaz Falconi

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Hi. Something like this?

obj_set_get.sm (11 KiB) downloaded 56 time(s).

Best regards
Alvaro.

2 users liked this post

sergio 1/19/2023 7:18:00 AM, Mark R Harris 1/20/2023 4:09:00 AM

#3 Posted: 1/18/2023 9:43:15 PM

Artiom Lisin

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Hey Alvaro, that is really cool, I didn't know you could do that in SMath. Thank you

#4 Posted: 1/19/2023 3:33:01 PM

Artiom Lisin

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Hey Alvaro,

I was testing out your methods with the inclusion of loops and it seems that I can't create a variable beforehand and assign it, it has to be empty. Do you know a way around this?

This is ultimately what I am trying to do with these functions, where I can get a mutable array of "Zones", each with their own properties (ie. area, x/y location etc.)

For reference I read through this thread as well: https://en.smath.com/forum/yaf_postst23278_String-to-Variable-Name--str2var.aspx
and tried some of the solutions posted on there but to no avail.

#5 Posted: 1/19/2023 4:28:07 PM

Artiom Lisin

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I figured it out, just don't know a way around it. Since I'm calling str2num(output_i), it's giving me the value of that expression and not the variable itself.

#6 Posted: 1/19/2023 5:22:47 PM

Alvaro Diaz Falconi

992 likes in 1674 posts.

Group: User

Wrote
I figured it out, just don't know a way around it. Since I'm calling str2num(output_i), it's giving me the value of that expression and not the variable itself.

Yep. You need to call str2num at the worksheet level. Something like this

obj_set_get.sm (18 KiB) downloaded 25 time(s).

Also, I'm go to modify the code for accept set or collections.

Best regards.
Alvaro.

#7 Posted: 1/19/2023 9:32:59 PM

overlord

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Group: Moderator

Jean's reply is not corresponding with question.

This algorithm is not creating an object.
It is only finding index of a key in data.

2 users liked this post

Alvaro Diaz Falconi 1/19/2023 10:06:00 PM, Mark R Harris 1/20/2023 4:11:00 AM

#8 Posted: 1/19/2023 10:08:17 PM

Alvaro Diaz Falconi

992 likes in 1674 posts.

Group: User

Wrote
Jean's reply is not corresponding with question.

Thanks.

Updated.

obj_set_get V2.sm (46 KiB) downloaded 41 time(s).
obj_set_get V2.pdf (154 KiB) downloaded 36 time(s).

Best regards.
Alvaro.

2 users liked this post

overlord 1/20/2023 12:05:00 AM, Mark R Harris 1/20/2023 4:12:00 AM

#9 Posted: 1/20/2023 1:57:13 PM

Artiom Lisin

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Group: User

Wrote

Wrote
Jean's reply is not corresponding with question.

Thanks.

Updated.

obj_set_get V2.sm (46 KiB) downloaded 41 time(s).
obj_set_get V2.pdf (154 KiB) downloaded 36 time(s).

Best regards.
Alvaro.

This is incredible work, it would be really cool to see this kind of feature built-in to SMath in the future.

#10 Posted: 1/20/2023 5:30:40 PM

Davide Carpi

1416 likes in 2873 posts.

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Wrote
Jean's reply is not corresponding with question.

This algorithm is not creating an object.
It is only finding index of a key in data.

mod: Deleted since it was off-topic.

@Jean: please stay on topic.

If you like my plugins please consider to support the program buying a license; for personal contributions to me: paypal.me/dcprojects

#11 Posted: 1/20/2023 9:50:59 PM

Artiom Lisin

0 likes in 6 posts.

Group: User

Wrote

Wrote
Jean's reply is not corresponding with question.

Thanks.

Updated.

obj_set_get V2.sm (46 KiB) downloaded 41 time(s).
obj_set_get V2.pdf (154 KiB) downloaded 36 time(s).

Best regards.
Alvaro.

I"ve been absolutely loving using this! Is there a way to disable the historical value saving? I'm trying to override some values rather than keep a record of them, I was thinking of going through a loop that check to see if the second column is zero and making a new submatrix without that row and calling it recursively until there are no 0 values left, however that presents a future problem when the value I want to set is 0. Is there a way around this?

#12 Posted: 1/20/2023 11:32:36 PM

Alvaro Diaz Falconi

992 likes in 1674 posts.

Group: User