Clearwin+ figures in Science Advances

The plots for this publication were done using FTN95 and Clearwin+

http://advances.sciencemag.org/content/3/1/e1601558.full#F7

The only thing which was hard to implement is this damn tic numbering. it is still done by hand. Anyone has good experience here and can help?

Hope new %pl will be eventually able to create such plots in one single line of Fortran text!

The new 64bit compiler i just moved to allows to load and plot MUCH higher resolution data (10000x at least) then in above figure made in 32bit CWP and OpenGL. And with almost a billion triangles displayed it is doing that really fast. It is almost unbelievable and fascinating that when plot is done you can move, scale, rotate all these B particles (and virtually travel inside this 3D space) almost in realtime with no visible lag.

Here are some press releases on this article

https://www.eurekalert.org/pub_releases/2017-01/csu-rci011017.php

John, Where specifically? I do not notice anything wrong. Can you post what you see using Postimage dot net for example or PM me directly?

John, I still do not get what you mean...and since I do not know exactly your terminology (here is no contours or scatter cubes, for example, here plotted individual particles, atoms and ions after laser irradiation, each with its color on top plot and little cubes on bottom plots which average these particles inside their little volumes. Specific particles with charge 25 and 26 are marked as red and blue ) can you highlight with your hand the problem exactly on these plots ?

By the way the plotting part for these figures is barely one page of Fortran text. The rest code is just the Clearwin niceties to make all to handle many other choices. All is written taking the OpenGL Examples supplied with the compiler. If Salford/Silverfrost would make 10-20 of them, and made looking nice, there would be few times more compiler users . Graphics becomes more and more important, you literally can not do anything without it in complex 2D and 3D codes generating TBs of data

Dan, correct me if I am giving the wrong interpretation below.

John, the plots display a scalar point function, namely, energy per unit volume, \rho E, which is a function of (x, y, z). The value of \rho E is indicated not by distance, but by color.

I agree with you that it is a bit misleading to show a color index bar parallel to one of the three axes. They could have given it in a label box, or outside the plot proper, and not slanted to make it parallel to anything other than the edges of the page or plot frame.

Had they plotted temperature distribution inside the core of a volcano, for example, they could have used a similar plot. In that case, it would be obvious that making the color scale rectangle parallel to anything would be impossible because of the irregular geometry. In the figure that Dan posted, the geometry is quite regular, hence the confusion.

Right, Mecej4, thanks for useful clarification.

John, Here is some other analogy to what you see: just imagine that on the top picture you see how, for example, a fuse in your TV explodes by excessive current. You see its particles and vapors leaving its cylindrical volume and each piece of this vapor has its color depending on speed or temperature (the single wire on the top was cut like a sosige for clarity of seeing what's inside) . Bottom pictures shows 4 such fuses and are plotting the energy density inside exploded wire and its vapors

here are no any specific problems with the Clearwin related to these plots. And there is no meaning in the position, height or size of the color bar column. Color bars are often used with 2D plots, here is just 3D version of it.

The problem i have is that i can easily make tic marks in these color bars but i can not place numbers associated with them by some unknown to me reason (i never studied OpenGL. I love learning everything on examples, exercises and tasks which go after the theoretical topics, basically, i never RTFM 😃. So far I can do that easily on usual 2D XY plots but not using OpenGL. When i call text second time for example it does change the text font size or its position is hard to set etc. Any successful example would help, but no one uses OpenGL with Fortran, hell knows why, this is great thing, and this is the future.

Ahhh, ok, well, our eyes just lie to us, John 😃. Do you feel that color bars look a bit 'drunk'? That is true, but in reality the color bars here always stay strictly perpendicular to its base as well as do the exploding wires. Looks like flying in space in vicinity of these superhot objects we approached one of their edges way too closely 😄

In photography this can be often fixed. I actually wrote a program using Clearwin+ which is doing such 'perspective fixing' with JPG etc files, i can send it to anyone. But here with these pictures above there was no time even to think about this

Quoted from John-Silver mecej4 - the colour bars are not parallel to ONE of the 3 axes !!! Look at fig. 5 plot above. there are 2 bars in different directions !! and neither are normal to the base 'plane' marked. They're drawn parallel to 2 of the 'tapering cube' (of scatter points) edges

John, they are using a perspective (non-orthogonal) projection. In a perspective projection, parallel lines meet at the 'vanishing point'. See, for example, https://en.wikipedia.org/wiki/Perspective_(graphical)#/media/File:Railroad-Tracks-Perspective.jpg . So, when we say that two lines in 3-D space are parallel, when we can only see a 2-D representation, we have to distinguish between 'convey a sense of being parallel' and 'their 2-D projections are parallel'.

The %og is part of Clearwin+ and OpenGL.

Here is what my perspective change program is doing. Top is original picture with falling buildings, bottom has its perspective fixed. Very handy. Makes picturing in the cities look professional by eliminating falling wall houses. Let me know if you need this easy FTN95 or even FTN77, i do not remember, source code which you totally control yourself. No programming needed just drag and drop and clicking.That will instantly save you $30 on some shareware 😃. And yes, this software would easily in seconds fix perspective for the Science Advances' pictures if there was no other way to do that natively.