File:SpectreSolaireGradue DVD.jpg

Summary[edit]

I am not 100% sure the scale is right. Pas sûr que l'échelle soit vraiment correcte.
(It is a screenshot of an SVG file displayed by Firefox)

The code is not perfect, but looks like this :

<?xml version="1.0" standalone="no"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
<svg width="2200" height="512" xmlns="http://www.w3.org/2000/svg" version="1.1" xmlns:xlink="http://www.w3.org/1999/xlink" >

<g stroke="black" id="marques"></g>
<script type="text/javascript">
<![CDATA[
var SVG_NS ="http://www.w3.org/2000/svg";
var SVG_LNK = "http://www.w3.org/1999/xlink";
const pi=3.141592754
var doc=document.getElementById("marques");
// jpeg
myjpg= document.createElementNS(SVG_NS, "image");
myjpg.setAttributeNS("http://www.w3.org/1999/xlink", "xlink:href", "SpectreSolaireRedresse.jpg");
margex = 50; margey = 50;
image_height = 202; image_width = 2020;
myjpg.setAttribute("x", margex);
myjpg.setAttribute("y", margey);
myjpg.setAttribute("width", image_width);
myjpg.setAttribute("height", image_height);
doc.appendChild(myjpg);

<!-- ****** spectre solaire ******* -->
// Pointage des raies avec GIMP
px1=1566; lambda1=589.0; <!-- Doublet Na -->
px2=987; lambda2=518.3; <!-- Triplet Mg -->
// Parametres d'interpolation
alpha = (px1 - px2) / (lambda1 - lambda2);
beta = px1 - alpha * lambda1;

for (lambda = 300; lambda < 700; lambda += 2)
	{
	x = Math.round(lambda * alpha + beta) + margex;
	if (x < margex)
		continue;
	if (x > (image_width + margex))
		break;
	mygrad = document.createElementNS(SVG_NS, "line");
	mygrad.setAttribute("x1", x);
	mygrad.setAttribute("x2", x);
	mygrad.setAttribute("y1", margey + image_height);
	if ((lambda % 10) == 0)
		mygrad.setAttribute("y2", margey + image_height + 20);
	else	mygrad.setAttribute("y2", margey + image_height + 10);
	mygrad.setAttribute("style", "stroke:rgb(99,99,99);stroke-width:2");
	doc.appendChild(mygrad);
	if (lambda % 10)
		continue;
	mygradtxt = document.createElementNS(SVG_NS, "text");
	mygradtxt.setAttribute("x", x);
	mygradtxt.setAttribute("y", margey + image_height + 30);
	mygradtxt.setAttribute("stroke-width", "0.3");
	mygradtxt.setAttribute("style", "font-size:12px;");
	doc.appendChild(mygradtxt);
	
	var mytext = document.createTextNode(lambda);
	mygradtxt.appendChild(mytext);
	}

]]>
</script>
</svg>

Licensing[edit]

I, the copyright holder of this work, hereby publish it under the following licenses:

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue

This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International, 3.0 Unported, 2.5 Generic, 2.0 Generic and 1.0 Generic license.

You are free:

• to share – to copy, distribute and transmit the work
• to remix – to adapt the work

Under the following conditions:

• attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
• share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

https://creativecommons.org/licenses/by-sa/4.0CC BY-SA 4.0 Creative Commons Attribution-Share Alike 4.0 truetrue

You may select the license of your choice.