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|
<!DOCTYPE html>
<html lang="fr">
<head>
<meta charset="UTF-8">
<title></title>
<style>
html, body {margin: 0;padding: 0;}
#stage{
width:100%;
height:99%;
margin:auto;
}
</style>
</head>
<body>
<div id="stage"></div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/raphael/2.3.0/raphael.min.js"></script>
<script>
/*plugin*/
(function() {
Raphael.fn.group = function(f, g) {
var enabled = document.getElementsByTagName("svg").length > 0;
if (!enabled) {
// return a stub for VML compatibility
return {
add : function() {
// intentionally left blank
}
};
}
this.svg = "http://www.w3.org/2000/svg";
this.defs = document.getElementsByTagName("defs")[f];
this.svgcanv = document.getElementsByTagName("svg")[f];
this.group = document.createElementNS(this.svg, "g");
for(let i = 0;i < g.length;i++){
this.group.appendChild(g[i].node);
}
this.svgcanv.appendChild(this.group);
this.group.translate = function(c, a) {
this.setAttribute("transform", "translate(" + c + "," + a + ") scale(" + this.getAttr("scale").x + "," + this.getAttr("scale").y + ")");
};
this.group.rotate = function(c, a, e) {
this.setAttribute("transform", "translate(" + this.getAttr("translate").x + "," + this.getAttr("translate").y + ") scale(" + this.getAttr("scale").x + "," + this.getAttr("scale").y + ") rotate(" + c + "," + a + "," + e + ")");
};
this.group.scale = function(c, a) {
this.setAttribute("transform", "scale(" + c + "," + a + ") translate(" + this.getAttr("translate").x + "," + this.getAttr("translate").y + ")");
};
this.group.push = function(c) {
this.appendChild(c.node);
};
this.group.getAttr = function(c) {
this.previous = this.getAttribute("transform") ? this.getAttribute("transform") : "";
var a = [], e, h, j, b, d, k;
a = this.previous.split(" ");
for(i = 0;i < a.length;i++) {
if(a[i].substring(0, 1) == "t") {
d = a[i];
b = d.split("(");
d = b[1].substring(0, b[1].length - 1);
b = [];
b = d.split(",");
e = b.length == 0 ? {x:0, y:0} : {x:b[0], y:b[1]};
}else {
if(a[i].substring(0, 1) == "r"){
d = a[i];
b = d.split("(");
d = b[1].substring(0, b[1].length - 1);
b = d.split(",");
h = b.length == 0 ? {x:0, y:0, z:0} : {x:b[0], y:b[1], z:b[2]};
}else {
if(a[i].substring(0, 1) == "s") {
d = a[i];
b = d.split("(");
d = b[1].substring(0, b[1].length - 1);
b = d.split(",");
j = b.length == 0 ? {x:1, y:1} : {x:b[0], y:b[1]};
}
}
}
}
if(e == undefined) {
e = {x:0, y:0};
}
if(h == undefined) {
h = {x:0, y:0, z:0};
}
if(j == undefined) {
j = {x:1, y:1};
}
if(c == "translate") {
k = e;
}else {
if(c == "rotate") {
k = h;
}else {
if(c == "scale") {
k = j;
}
}
}
return k;
};
this.group.copy = function(el){
this.copy = el.node.cloneNode(true);
this.appendChild(this.copy);
};
return this.group;
};
})();
//fin plugin
</script>
<script>
const pi=Math.PI;
const deg= 180/pi;
const rad=1/deg;
let w=window.innerWidth;
let h=.99*window.innerHeight; // 99% car innerHeight dépasse le clientheight
var R= h/2;
var xD=w-2*R-R/20; //position du rapporteur en x sur paper
var paper, rapporteur, rapporteurSVG;
paper = Raphael("stage", w, h);//il faut bien lui donné une dimension quelconque qui respecte les proportions largeur hauteur de la surface client...J'ai donné la maximale/peu importe...
paper.setViewBox(0, 0, w, h, true);
paper.setSize("100%", "100%");
function Cercle(posX, posY, ray){
paper.circle(posX, posY, ray).attr({
stroke: "black",
"stroke-width": 1
});
}
function grads(posX,posY,taille,alpha){
paper.path("M{0} {1} L{2} {3}", posX, posY, posX+taille, posY).attr({
stroke: "black",
"stroke-width": 2
}).rotate(alpha,xD+R,R);
}
function Line(x1,y1,x2,y2){
paper.path("M{0} {1} L{2} {3}", x1, y1, x2, y2).attr({
stroke: "black",
"stroke-width": 1
});
}
function Disque(posX, posY, ray,colstroke,colfill){
paper.circle(posX, posY, ray).attr({
fill:colfill,
stroke: colstroke,
"stroke-width": 1
});
}
function Textgrad(x,y,text){
paper.text( x, y, text).attr({
"font-family":"Tahoma",
"font-size":R/25,
"font-weight": "bold",
fill:'#555555'
});
}
var r=paper.rect(0,0,w,h).attr({fill: "#f0e5cb"}); //le fond -> si je fais les mouseEvent sur r (au redimensionnement, ça tourne correctement-pas de problème de redim du bounding rapporteur
// construction du 1er objet rapporteur
paper.setStart();
Disque(xD+R,R,R,'#fffaf0','#fffaf0');
Cercle(xD+R,R,R/1.5);
Cercle(xD+R,R,R/4);
Cercle(xD+R,R,R/10);
Line(xD,R,xD+2*R,R);
Line(xD+R,0,xD+R,2*R);
Disque(xD+R,R,R/70,'black','#fffaf0');
for (let i=0;i<360;i++){
grads(xD+2*R-0.03*R,R,0.03*R,i);
}
let angle='';
for (let j=0;j<36;j++){
grads(xD+2*R-0.09*R,R,0.09*R,10*j);
if (j<=9) {angle=String(10*j);}
else if ( (j>9) && (j<=18) ) {angle=String(90-(j-9)*10);}
else if ( (j>18) && (j<=27) ) {angle=String((j-9)*10-90);}
else {angle=String(170- (j-19)*10);}
Textgrad(xD+R*(1+7/8*Math.cos(10*j*rad) ) ,R*(1+7/8*Math.sin(10*j*rad) ) ,angle);
}
for (let k=0; k<72; k++){
grads(xD+2*R-0.06*R,R,0.06*R,5*k);
}
rapporteur=paper.setFinish();
rapporteur.attr({"cursor" : "grab"});
var b=rapporteur.getBBox();//Bounding de rapporteur (b.x équivalent à xD)
//var b= rapporteur.paper.canvas.getBoundingClientRect();
rapporteurSVG = paper.group(0, rapporteur);
var theta_start=0, theta_move=0, theta_old=0, theta=0;
function handleMouseMove(e){
theta_move = Math.atan2(R-e.clientY,e.clientX-R-b.x)*deg;
theta = theta_move-theta_start+theta_old;
rapporteurSVG.rotate(-theta,R+b.x,R);
}
function handleMouseUp(e){
e.stopPropagation();
rapporteur.attr({"cursor" : "grab"});
theta_old=theta;
rapporteur.unmousemove(handleMouseMove);
window.removeEventListener('mouseup',handleMouseUp);
}
function handleMouseDown(e){
e.stopPropagation();
e.preventDefault();
rapporteur.attr({"cursor" : "grabbing"});
theta_start=Math.atan2(R-e.clientY,e.clientX-R-b.x)*deg;
rapporteur.mousemove(handleMouseMove);
window.addEventListener('mouseup',handleMouseUp);
}
function handleResize(){
//b=rapporteur.getBBox();
//window.location.reload();
}
rapporteur.mousedown(handleMouseDown);
//window.addEventListener('resize',handleResize);
</script>
</body>
</html> |
[SVG] Récupérer la position de la souris
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