I'm new to Graphviz and I'm getting a distorted image of my DOT file generated from terraform graph command which I'm trying to either lighten or increase the height of elements because they are really thin compared to their width.
To give you an example of the problem I'm facing (this is a really big schema):
The issue seems to be related to terraform graph which outputs everything on the same subgraph/rank.
Someone did a beautifier to solve this: https://github.com/pcasteran/terraform-graph-beautifier
Related
Turns out I’m working with the Autodesk Forge viewer and Three.js, trying to render 2D text that can be interacted with (specifically select, rotate, and move).
To do this I am working with meshes (using MeshBasicMaterial, Mesh and TextGeometry) but it turns out that the text does not look perfectly sharp, it presents aliasing and I found that according to the API reference, the antialiasing is not applicable to 2d.
Here are some examples of the problem, as you can see, the more I move away from the plane, the worse the text looks (and even up close it doesn't look perfect):
I have tried to make a test representing the text with a Sprite (despite the fact that it would mean having to change the entire implementation already made with meshes of other functionalities) but apart from the fact that I cannot see it, I have seen example images and they do not appear either well: aliasing is visible from a distance and it looks really blurry up close. Here some examples:
Is there a way to correct this problem or is this the most I can get in 2D? I've tried searching for information on this but can't find anything helpful. And what has puzzled me the most has been realizing that antialiasing was not applicable in the case of 2d, like making it clear that nothing can be done to fix it.
I would be very grateful if you could solve my doubts, thank you very much in advance for your help.
An easier alternative, is to just use a higher pixel ratio for the renderer...
window.devicePixelRatio=2;
viewer.resize();
For example, using the custom geometry text, from Joao's demo, you can see the same aliasing issue at DPR=0.5 and DPR=1.0 ...
https://joaomartins-forge.github.io/textgeometry-sample/
But when I set the DPR=2.0, the text looks clean. The trade off is rendering performance, but your 2D drawings may be simple enough that it won't matter. You can use a 'mouse up' camera settle trick, to switch between DPR of 1 and 2, if you want a better UX experience.
There are a few ways to solve this aliasing issue for 2D (and 3D text).
The way I would recommend for your use case, is to use DIV elements (THREE.CSS3DRenderer), instead of text converted into three.js tessellated triangle geometry, as shown in this blog post:
https://forge.autodesk.com/blog/how-do-you-add-labels-forge-viewer
You can find out more information about THREE.CSS3DRenderer here:
https://threejs.org/docs/#examples/en/renderers/CSS3DRenderer
and an Example here: https://threejs.org/examples/#css3d_periodictable
Using CSS3DRenderer instead of CSS2DRenderer, means you will get the correct scaling (and rotation) of the div element as you zoom into your 2D drawing and the mathematics inside the calculation for the matrix transform has less edge-cases.
Once you are using DIV elements for your text, you will notice that the text is sharper and has no aliasing issues. That's because it is not being rasterized by the webGL pipeline, but by the SKIA library used by chrome/firefox/opera/etc for rasterizing text.
There is one final option, that uses signed-distance fields, but it's probably overkill for what you need.
Let me know if you want some example code.
I'm trying to draw a flow chart in html.
The flow must be configured as below.
I've tried it in Mermaid like this
<script src="https://cdnjs.cloudflare.com/ajax/libs/mermaid/9.0.1/mermaid.min.js"></script>
<div class="mermaid">
graph LR
A-->B
B-->C
C-->B
C-->D
D-->C
D-->E
E-->D
E-->F
F-->E
F-->G
G-->E
C-->E
H
A-->H
H-->E;
</div>
Please I want to fix the position from A to G horizontality
I've tried to use CSS position, never worked.
Also tried to animate it through jquery, never worked.
Please let me know any way to fix these nodes or else great library for it.
Thanks.
I get what you mean, but after having a look to the documentation, I could not manage to get your result, only improve readability by adding linkStyle default interpolate basis at the beginning of the chart.
It is unfortunate not to be able to put the nodes in separate divs, that could do the trick with some align. You are not the only one asking for similar behaviour in the repository of mermaid.
The API doc of the mermaid flowcharts does not provide any setting to achieve your goal.
Although the difficulty seems to come from the fact mermaid-js is based on d3-shape to make the links between nodes as stated here.
My best advice is to change library and since you are coding in javascript, vis.js can get you the result you expect with the networks as you can see here.
I did not dig any further, but it seems you may have to define manually the coordinates of the nodes, as explained in this stackoverflow post : vis.js - Place node manually
In CSS or SVG, is it possible to warp text so it looks like it is written on a sphere or looked at using a magnifier?
Something similar to this
I have been look over the internet but could not find any guides.
All of the comments telling that it can't be done are wrong. YES IT CAN BE DONE. Well, it's not easy but possible. Let's start from the beginning.
1. Don't even think about writing the code. You need a vector graphics software. I used Corel Draw to this project.
2. You need to create all text, apply all transformation, style each letter, add shadow, background or whatever you need.
This is a simple project I created. It's a fast draft, but you can style the text exactly as on your photo. You can easily make all letters in the middle bigger than the others.
(sorry it's not in English!)
3. Force Corel Draw or any other program to save svg with fonts not curves.
4. I analyzed the code and I see that each letter is saved separetly as a glyph:
<glyph horiz-adv-x="222" unicode="l"><path d="m63.876 0.23623l-2.504 715.49 87.971 0.33072 2.504-715.49-87.971-0.33072z"/></glyph>
Some other letters are saved as text and transformations are applied:
<text class="fil1 fnt0" x="1045" y="1269"><tspan rotate="335">L</tspan></text>
5. FULL CODE looks like this. It's long. I minified it a little bit.
FIDDLE: https://jsfiddle.net/ubw1rdq7/
SOLUTION 2 - MUCH EASIER
It's not fun if you have each letter saved separetly because the file may be huge. You can save your text as a curve and have only one path. This will behave like an image but you can inline the code into your html.
Here is a fiddle:
https://jsfiddle.net/wyfhfjo4/
In both cases all code is over 30kb in size and I made only simple transformations. i hope I gave you some idea how you can achieve desired effect. 99% of the project is to work in vector editing software like Corel Draw and apply all transformation to the text.
For any 3d transformation it's better to transform the text to curves as it will definitely be easier. As an output you will get a path not glyphs.
It is possible to do this using an feDisplacementMap in SVG, but this is currently bugged in current Chrome, so not very useful to you.
I have this project that it's due in a few hours and I still have a report to write... The project has nothing to do with Dot, but we were asked to draw a Graph with Dot, which I did.
It looks something like this:
http://img683.imageshack.us/img683/9735/dotj.jpg
The longer arrows represent smaller weights and the shorter arrows represent bigger weights. There isn't any problem in submitting my project like this, it does what's is supposed to do and this Dot thing is just an extra.
But I would like to make it pretty, I just don't have time to learn about Dot right now. Basically, all I want is make pretty. Perhaps, a bigger height for the page, like A4 paper size. And have the graph display more to the bottom than everything to the side.
What should I put on my .dot file to make it look better?
There are a lot of options that can help to fix this problem. Setting the size option to be whatever the dimensions of an A4 sheet of paper are would be a good start. The GraphViz guide goes over most of the relevant options pretty thoroughly (see page 14 of this pdf, it's not as long as it looks, only 2 or 3 pages for the relevant info).
I am trying to use a vertical scrollbar in my Qt project.
The issue is when use the Cleanlooks widget style for the vertical scrollbar,it looks ok on the Linux Ubuntu machine,where Qt-4.3.3 is running.
But,when i run the same project on a Qtopia-4.3.3 Linux(ARM) machine,the scrolldown and scrollup images look totally jagged. They,look very bad. I tried using stylesheets,but without luck. Any suggestions regarding using stylesheets are most welcome.
Is there any way,to overcome this problem?
In my relatively small experience with styles on embedded platforms, some of the styles are designed so they use an image for certain things, and scale it as necessary. This produces very jagged graphics if the source is small and the target it large. One possibility is to inherit your own QStyle from the Cleanlooks style, and override the drawing of the arrow images with your own drawing code. It shouldn't be too hard to draw a proper arrow in code, rather than using an image.