TEXDraw - Create Math Expressions inside Unity!

I am using the "align" environment to show several rows of equations. How do I best adjust the space between rows? Right now, the rows are too close together.

 

Hmm... Looks like I missed that part, there's no way to adjust it currently. The rows have 0 paddings vertically.

 

In LaTeX, you would normally use something like

\\[12px]

to adjust the spacing for an individual row. To do it more globally would be something like `

\renewcommand*{\arraystretch}{1.5}

.

 

Actually, I have implemented \\[12px] recently, also added vertical margin in "align". It's still on GitLab repo. I plan to update a new version this weekend.

 

I hope you can do this update sometime soon.

 

Hey. Why is there no way to change the pixelPerUnit property via script?
I added it myself in the TEXDraw3D.cs script. Is this in some way dangerous, or why is this missing? Otherwise it would be nice if you could add this in future versions.

Code (CSharp):

1.  
2.     public virtual float size
3.     {...}
4.  
5.     public virtual float pixelsPerUnit
6.     {
7.         get
8.         {
9.             return m_PixelsPerUnit;
10.         }
11.         set
12.         {
13.             if (m_PixelsPerUnit != value)
14.             {
15.                 m_PixelsPerUnit = Mathf.Max(value, 0f);
16.                 Redraw();
17.             }
18.         }
19.     }
20.  
21.     public virtual Color color
22.     {...}
23.  

 

Wow, I have forgotten.
Thanks for noticing me!

 

Hi . I want to add a new font to TextDraw. In the documentation, there is information about adding a new font, but I did not understand the last part. Add font name to part of image? i did that but it doesn't work for me

 

I might need to add more explanation.

You need to go from Menu Bar -> Tools -> TEXDraw -> Show Preference, then go to the Configuration tab.
The difference with directly opening the config file is that there's a "Refresh" button that will update all TEXDraw objects in the scene, otherwise you have to close and reopen the scene file to see the effect.

Also, make sure to type in the exact font name (without extension) e.g.

MyFont

(case-sensitive), the font name must have no space.

 

Thank you very much. I was able to add a new font. I have another question. Does TextDrow have Auto Size? If so, how can I use it?

 

Hi there. I wanted to use TEXDraw to output long and short text. Does TEXDraw have autosize? If so, how can I use it?

 

You can add a Content Size Fitter or put it inside a Horizontal/Vertical Layout Group.

 

Hello,

I'm having some problems using the tmp/sdf integration. It looks like some triangle halves of some quads are not rendering properly (seems to change randomly as I change the text). Does this problem look familiar to anyone? Does anyone have a solution?

It only happens using the tmp integration. Using 2021.3.0f1 LTS with URP.

 

I'm using Unity 2019.4 LTS mac and Using URP. I have no issues. Will try your unity version. Meanwhile, can you tell us The OS, or maybe you can send a minimalistic project that reproduces the issue?

 

I'm Using 2021.3.0f1 on a Windows machine with the target platform set to standalone (android as target platform has the same issue)
I created an empty URP project, imported TMP essentials, imported TEXTDraw, enabled TMP integration, copied an example scene, put the projection of the camera to Perspective and the canvas to World Space. That combination makes the text look broken.

 

Hello, how to make textbox in TEXDraw?
And does TEXDraw support "pgf" – A Portable Graphic Format for TeX like "tikzpicture" on overleaf?

https://github.com/pgf-tikz/pgf
https://www.overleaf.com/learn/latex/TikZ_package

If not, when will TEXDraw adopt it?
Thanks before.

 

This has been further discussed in private conversation and fixed in an upcoming version. Thanks.

No, and I don't think it's worth implementing. TEXDraw code is really different than LaTeX itself. For graphics, I recommend converting it to an SVG file and using a package (in the asset store) that can handle SVG.

 

Meanwhile, I just created a video tutorial for TEXDraw, hope you'll like it

 

Thanks for your response. But what command does TEXDraw use to create a text box? I've tried /fbox on the demo but it doesn't work.
One more thing, will TEXDraw render a text that use HTML tag like <b> </b>, <u>, and <i>?

 

I didn't implement that yet, the closest one/current workaround is using a tabular environment with one cell.

It was supported, but support was dropped from 5.x since it has poor support. I found some gist that may be useful for writing custom HTML to LaTeX converter.

 

Good morning!

I have been watching the code of the caret, and I see that this has not been updated since 2020. I was expecting that the movement of the caret was a little bit more like a scientific calculator. Furthermore, I was wondering if you have plans of updating it in the near future.

Thanks for your time!

 

The caret in TEXInput? I do have plans to revamp it further. But currently, I have no specific date when I can do that.

 

Hi.
I have a question about writing a mathematical formula.

How can I write a dash above the X?

 

Hi everyone.
I have question. Does textdraw asset support iOS?

This is on android mobile phone.

And this is on iOS platform on unity.

 

Hello.
I have problem with TexDraw.
When I run my project on iOS platform, TexDraw is not visible.
Does TexDraw support the iOS platform?

This is on Android platform.

This picture from iOS platform

Thanks for the help.

 

*pokes*

 

can you paste a link to the full error dump and version of unity and version of texdraw etc

 

try \bar{X}

https://tex.stackexchange.com/questions/22100/the-bar-and-overline-commands

 

Hey guys! Can we receive some inputs from the user in runtime with that plugin?

 

First of all: thank you Willnode for this amazing tool, without it I would not be able to fully support math notation in my educational games. I'm running into an issue however with Unity LTS 2021.3.24f1 and TexDraw 6.0.5 where custom TextMeshPro materials are not working. TexDraw refuses to use anything other than the Assets/Plugins/TEXDraw/Resources/TEX-Default.mat for any TexDrawUI components. Any suggestions? Is this a bug?


The blue question text at the top should not have this pink glow outline that I've applied to the default material, its assigned material has no outline or styling.

 

(following from email) TEXInput is the way to do it. Upcoming version will handle this much better.

It is a bug. Fix will come in upcoming version.

Today I plan to submit a new version to asset store.

 

I'm getting a lot of errors when trying to import version 6.1.0 even if I delete the TEXDraw folder first...


EDIT: Solved the ReflectionUtility error by removing any instances of ";TEXDRAW_TMP;TEXDRAW_TMP_DYNAMIC" under "scriptingDefinieSymbols" in ProjectSettings/ProjectSettings.assets

May be an issue for other people attempting to do an update

ADDITIONAL EDIT: Enabling TMPro integration after doing the above leads to the same error:
"Assets\Plugins\TEXDraw\Core\TexImporterSDF.cs(11,14): error CS0246: The type or namespace name 'ReflectionUtility' could not be found (are you missing a using directive or an assembly reference?)"

I also receive all of the same errors about a folder with a period as the first char, like in the screenshot above, if I try to re-import TEXDraw. I'm assuming you're developing on Linux?

Final EDIT:
"could not create directory for asset" errors maybe related to this? ... https://issuetracker.unity3d.com/is...-packages-and-one-of-them-is-already-imported

 

My bad. Didn't check compilation errors before submit.

To solve this issue while keeping TMPro integration intact, open the script file (TexImporterSDF.cs), at line 11 change from

Code (CSharp):

1. using static ReflectionUtility;

to

Code (CSharp):

1. using static TexDrawLib.ReflectionUtility;

This fix has been patched in GitLab repo and subsequent update will be published. Thanks for reporting.

 

I wanted to express my sincere gratitude for the amazing asset you have created. It has been instrumental in my projects, and I appreciate the hard work and dedication you have put into it.
I am interested in modifying the size settings for superscripts and subscripts from the preferences. Upon reviewing the PDF file of the historical version, I noticed that there was a "script factor" within the scale factors of the preferences, allowing for adjustments in the sizes of superscripts and subscripts. However, in the current version, I couldn't find such an option in the preferences. I was wondering if the ability to adjust the sizes of superscripts and subscripts has been removed, or if I might have overlooked something. It would be immensely helpful if you could provide some clarification on this matter.
Thank you for taking the time to consider my question. I genuinely appreciate your expertise and your contributions to the TEXDraw asset. I look forward to your response.

 

I am writing to inform you that I have resolved the question I asked earlier.

Since the issue has been resolved before receiving your response, there is no need for a reply.

 

I am a new user to TEXDraw, from the above picture, I am not sure why the spaces are automatically added there, any causes and solutions?

 

Justify is enabled by default for all text. If you want to disable it across the project then go to the preferences file and then untick "Justify".

\flushleft

also can be used if you want it just for specific components.

 

It works perfectly now and solved my problem. Thank you so much!

 

Hello! We are trying to make an animation to change the font color of a TEXDrawUI component, but the color doesn't update. Is there any way to fix it?

At the video there are the same example animation in the TEXDraw component and a TMP component to see the difference. You can also see how the color of the TEXDraw font changes in the editor but not in the scene.

Thank you!

 

It looks like I have to implement some changes with what TextMeshPro has to deal with:
https://forum.unity.com/threads/help-please-with-animation-component-public-properties-custom-inspector.229328/

 

Does this error message matter? This is using Unity 2022.3.2f1, on a Mac Silicon M2:



It seems I can draw stuff ok, so maybe it doesn't matter??? But I suspect I will find some specific thing not working later on?

(PS Beautiful rendered latex text Awesome )

 

How to control vertical alignment? I'm testing a simple animation using:

Code (csharp):

1.  
2. using System;
3. using UnityEngine;
4.  
5. namespace TryTexDraw {
6. public class Controller : MonoBehaviour {
7. [SerializeField] string[] fullLatexExpressions = new string[] {
8. "y",
9. "y =",
10. "y = x",
11. "y = x^2",
12. "y = x^2 + \\sum_{i=1}^j",
13. };
14. [SerializeField][Range(0.01f, 5)] float animRevealTime = 1f;
15. [SerializeField] bool reset = false;
16.  
17. TEXDraw _texDraw;
18.  
19. float _revealStartTime = 0;
20.  
21. void OnEnable() {
22. _texDraw = GetComponentInChildren<TEXDraw>();
23. Debug.Log($"texDraw {_texDraw}");
24. }
25.  
26. void Update()
27. {
28. if (reset) {
29. _revealStartTime = Time.time;
30. reset = false;
31. }
32. var itemToReveal = Math.Min(fullLatexExpressions.Length - 1, (int)((Time.time - _revealStartTime) / animRevealTime) - 1);
33. _texDraw.text = itemToReveal == -1 ? "" : fullLatexExpressions[itemToReveal];
34. }
35. }
36. }
37.  

However, you can see that if the text field is top aligned, then when the ^2 appears, then the text so far shifts down. This is fixable by using bottom alignment. However, with bottom alignment, when the \\sum appears, the text shifts up. Middle alignment works for \\sum, but not for ^2. How to handle this, so I get beautifully animated appearing text?

Edit 1: Thinking about this, one solution might be if I could render the entire text each time, but simply change the alpha, or the color, of some of the text?

Edit 2: Oh... thats the solution

 

Oh I see, for now we have solved it by doing the color animation by code with a lerp coroutine and the function SetTextDirty().

Thanks for the reply!

 

Interesting. TEXDraw-UIE is an experimental support for UI Elements. I guess that you've disabled UI Elements, which is totally fine. You can delete all files related to UIE in 'Scripts' folder if you want to.

That is the correct way!

 

Interesting. Thanks!

Cool. Don't suppose... is there any way of setting the text color as alpha/transparent, rather than black? Using black is workable for many situations, but alpha will increase flexibility, reduce cognitive load, increase the number of cases where it works perfectly.

 

It's working...



Also it does work with Color property set in the object.

 

So, that's the background in alpha, but how to draw text in alpha? I can draw in black, but I dont see how to draw in alpha? Example: I have

Code (csharp):

1.  
2. \frac{\partial \mathbf{v}}{\partial t} = - \color{black}(\mathbf{v} \cdot \nabla)\mathbf{v}

The output is:



Whereas I want the output to look like:



Thoughts?

 

oh, like this, neat

Code (csharp):

1.  
2. \frac{\partial \mathbf{v}}{\partial t} = - \color{#ffffff00}(\mathbf{v} \cdot \nabla)\mathbf{v}

 

Awesome

 

Is it possible to achieve a text underlay? It appears the TextMeshPro shaders are unsupported. With most of the TMP shaders, the glyphs appear as just colored squares. The only TMP shader that kind of works is the distance field SSD (the text appears fine with normal settings, but the underlay is screwed).

Edit: I'm using version 6.1.1