Bonjour la communauté,
Après avoir testé VML, j'ai cherché quelque
de moins gourmand en ressource pour réaliser
des graphes sur une page HTML
Je suis tombé sur cet article :
http://www.davidbetz.net/graphics/
J'ai décidé de voir ce que cela donner en Python :-)
Cordialement
Salvatore
Notez au passage la fonction "win32gui.PumpWaitingMessages()"
qui permet une animation fluide (:-) M.C)
Voici un début en Python:
<code>
<html>
<head>
<TITLE>HTML Application Example</TITLE>
<HTA:APPLICATION ID="HTAEx" APPLICATIONNAME="HTAEx" ICON="e.ico"
WINDOWSTATE="normal">
<style type="text/css">
..Ink {
position: relative;
background-color: transparent;
border-top: 1px solid transparent;
width: 1px;
height: 1px;
}
..InkV {
position: absolute;
background-color: transparent;
border-top: 1px solid transparent;
width: 1px;
height: 1px;
}
#dynamicAttacher {
background-color: #677767;
width: 800px;
height:800px;
border: 0px solid black;
padding:0px;
margin:0px;
}
</style>
<script language=python>
import win32gui
dynamicAttacherObj = document.getElementById('dynamicAttacher');
def plotPixel(x,y):
pixel = document.createElement('div')
pixel.style.color = "#FF0000";
pixel.className = 'Ink';
pixel.style.left = `x` + 'px';
pixel.style.top = `y` + 'px';
document.all.dynamicAttacher.appendChild(pixel)
def DrawVerticalLine(x, y, l, c):
y = y+15
longPixel = document.createElement('div');
longPixel.className = 'InkV';
longPixel.style.border = '0';
longPixel.style.backgroundColor = c;
longPixel.style.height = str(l) + 'px';
longPixel.style.left = str(x) + 'px';
longPixel.style.top = str(y) + 'px';
document.all.dynamicAttacher.appendChild(longPixel );
def DrawHorizontalLine(x, y, l, c):
longPixel = document.createElement('div');
longPixel.className = 'Ink';
longPixel.style.borderTopColor = c;
longPixel.style.width = str(l) + 'px';
longPixel.style.left = str(x) + 'px';
longPixel.style.top = str(y) + 'px';
document.all.dynamicAttacher.appendChild(longPixel );
def test():
dynamicAttacherObj = document.getElementById('dynamicAttacher');
back = dynamicAttacherObj.innerHTML
for i in range(800):
DrawHorizontalLine(0,i,800,"#00ff00")
DrawVerticalLine(i,0,800,"#ffff00")
win32gui.PumpWaitingMessages()
dynamicAttacherObj.innerHTML = back
def init():
DrawHorizontalLine(0,400,800,"#fff")
DrawVerticalLine(400,0,800,"#ff0000")
test()
</script>
</head>
<body onLoad="init()">
<div id="dynamicAttacher"></div>
</body>
</html>
</code>