=y2;y--)
{
point(x,y);
x=x-(1/m);
}
}
}
};
```
---
### Author:  [@glv](https://discourse.processing.org/u/glv)
#### Post date: [April 11, 2020, 12:04pm UTC](https://discourse.processing.org/t/how-can-i-make-a-regular-triangle-from-a-line/19655/2 "2020-04-11T12:04:40Z")
Hello,
Your posted code (and edits) suggests you are very new to Processing and programming.
For starters, you did not declare any variables and do not have a function for szR().
I encourage you to review the resources available here:
- Processing website has references, examples, tutorials, etc.
[https://processing.org/](https://processing.org/)
- Those available with the Processing PDE (IDE).
An exploration of the tabs will reveal what is available; there are libraries and examples there.
- The Processing Foundation
[https://processingfoundation.org/](https://processingfoundation.org/)
Check out the tabs.
In the education tab, there is a reference to the Coding Train.
- The Coding Train
[https://www.youtube.com/channel/UCvjgXvBlbQiydffZU7m1\_aw](https://www.youtube.com/channel/UCvjgXvBlbQiydffZU7m1_aw)
[https://thecodingtrain.com/](https://thecodingtrain.com/)
- Happy Coding
[Processing Tutorials - Happy Coding](https://happycoding.io/tutorials/processing/)
To get you started:
[https://happycoding.io/tutorials/processing/creating-functions](https://happycoding.io/tutorials/processing/creating-functions)
> **[Variables / Examples](https://processing.org/examples/variables.html)**
>
> Variables are used for storing values. In this example, change the values of variables to affect the composition.
> **[line() / Reference](https://processing.org/reference/line_.html)**
>
> Draws a line (a direct path between two points) to the screen. The version of line() with four parameters draws the line in 2D. To color a line, use the stroke() function. A line cannot …
`:)`
---
### Author:  [@Chrisir](https://discourse.processing.org/u/Chrisir)
#### Post date: [April 11, 2020, 12:24pm UTC](https://discourse.processing.org/t/how-can-i-make-a-regular-triangle-from-a-line/19655/3 "2020-04-11T12:24:43Z")
Can you post a code for the function szr please?
---
### Author:  [@Tauter](https://discourse.processing.org/u/Tauter)
#### Post date: [April 11, 2020, 12:27pm UTC](https://discourse.processing.org/t/how-can-i-make-a-regular-triangle-from-a-line/19655/4 "2020-04-11T12:27:50Z")
I’m sorry, I do declared the variables, and i have the szR function.
I thought it does not help, as the szR method is working.
---
### Author:  [@Tauter](https://discourse.processing.org/u/Tauter)
#### Post date: [April 11, 2020, 12:28pm UTC](https://discourse.processing.org/t/how-can-i-make-a-regular-triangle-from-a-line/19655/5 "2020-04-11T12:28:25Z")
Yes, of course i will edit the question.
---
### Author:  [@glv](https://discourse.processing.org/u/glv)
#### Post date: [April 11, 2020, 12:32pm UTC](https://discourse.processing.org/t/how-can-i-make-a-regular-triangle-from-a-line/19655/6 "2020-04-11T12:32:23Z")
Please do not keep editing the original post; other than properly formatting it.
Followup to questions with an updated post.
Please format your code:
[https://discourse.processing.org/faq#format-your-code](https://discourse.processing.org/faq#format-your-code)
`:)`
---
### Author:  [@glv](https://discourse.processing.org/u/glv)
#### Post date: [April 11, 2020, 12:57pm UTC](https://discourse.processing.org/t/how-can-i-make-a-regular-triangle-from-a-line/19655/7 "2020-04-11T12:57:41Z")
This was just an exploration into your code.
It appears your function just draws a line() with point().
```auto
void draw()
{
background(240);
x1 = 200; y1=150;
x2 = 450; y2 = 300;
push();
stroke(255, 0, 0);
translate(0, -10);
line (x1, y1, x2, y2);
pop();
//same as:
szR(x1,y1,x2,y2);
xl = x2-x1; yl = y2-y1;
szR(x1, y1, x1, y2);
//szR(x2, y2, ?, ?); // You can complete this.
}
```
`:)`
---
### Author:  [@Tauter](https://discourse.processing.org/u/Tauter)
#### Post date: [April 11, 2020, 1:40pm UTC](https://discourse.processing.org/t/how-can-i-make-a-regular-triangle-from-a-line/19655/8 "2020-04-11T13:40:33Z")
Thank you!
I know the line() is way better. But my instructor does not allow it.
Thanks to you one of my task is done. 😁
The other parts are already done.
But there is a problem,I know i asked much already, but how can I make a equilateral triangle out of the same line ?
---
### Author:  [@glv](https://discourse.processing.org/u/glv)
#### Post date: [April 11, 2020, 1:50pm UTC](https://discourse.processing.org/t/how-can-i-make-a-regular-triangle-from-a-line/19655/9 "2020-04-11T13:50:11Z")
You know where your x and y points are; just think about where to place them and how you would do that. It can be as simple as multiplying, adding, subtracting, rotating, translating, etc.
This is achievable so I will leave this with you to do and you can enjoy the feeling you get when you succeed.
[https://processing.org/tutorials/trig/](https://processing.org/tutorials/trig/)
> **[Equilateral triangle](https://en.wikipedia.org/wiki/Equilateral_triangle)**
>
> In geometry, an equilateral triangle is a triangle in which all three sides are equal. In the familiar Euclidean geometry, an equilateral triangle is also equiangular; that is, all three internal angles are also congruent to each other and are each 60°. It is also a regular polygon, so it is also referred to as a regular triangle.
> Denoting the common length of the sides of the equilateral triangle as
>
>
>
> a
>
>
> {\\displaystyle a}
>
> , we can determine using the Pyth...
`:)`
---
### Author:  [@Tauter](https://discourse.processing.org/u/Tauter)
#### Post date: [April 11, 2020, 2:04pm UTC](https://discourse.processing.org/t/how-can-i-make-a-regular-triangle-from-a-line/19655/10 "2020-04-11T14:04:44Z")
I will try. Thank you.
---
### Author:  [@glv](https://discourse.processing.org/u/glv)
#### Post date: [April 11, 2020, 3:17pm UTC](https://discourse.processing.org/t/how-can-i-make-a-regular-triangle-from-a-line/19655/11 "2020-04-11T15:17:43Z")
Hello,
I took the approach of rotating a point.
[Google search for rotating a point](https://www.google.com/search?q=rotate+a+point&rlz=1C1CHBF_enCA822CA822&oq=rotate&aqs=chrome.0.69i59l2j69i57j69i65l2j69i60.1745j0j8&sourceid=chrome&ie=UTF-8)
Given any line (x1, y1, x2, y2) you can rotate it to create other lines and then translate (add to x and y) to make an equilateral triangle.
I did the math and did not use the Processing rotate() or translate().
`:)`
