I inlägget här ovan hade jag stor nytta av det kalkylator-program som jag en gång skrivit i Java-script. Jag har ingen server att lägga det på, men ni kan bara klistra in texten i ett text-dokument och spara det med filändelsen .html. Öpnna det i en browser så kan ni kalkylera bildförhållanden, ratio, bredd och höjd på displayer och TV. Här följer koden ni fritt kan använda...
[code]
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 TRANSITIONAL//EN">
<html>
<head>
<title></title>
<style>
table{font-family:arial; font-weight:bold; font-size:11px;}
</style>
</head>
<body>
<SCRIPT LANGUAGE="javascript">
ratioW = 0; ratioH = 0; ratioD = 0;
setTimeout("ratio(16,9)", 200);
function inch2mm(x) { return 25.4*x; }
function mm2inch(x) { return x/25.4; }
function round(x) { return Math.round(x*100/100); }
function ratio(x, y) {
document.getElementById("R1x").value = round(x);
document.getElementById("R1y").value = round(y);
ratioW = x; ratioH = y;
ratioD = Math.sqrt(ratioW*ratioW + ratioH*ratioH);
ratioW = ratioW/ratioD; ratioH = ratioH/ratioD; ratioD = 1;
calcD1();
}
function calcR1() {
x = document.getElementById("R1x").value;
y = document.getElementById("R1y").value;
ratio(x, y);
calcD1();
}
function calcD1() {
D = document.getElementById("D1").value;
W = ratioW*D; H = ratioH*D;
TR = document.getElementById("TR").value;
document.getElementById("D2").value = round(inch2mm(D));
document.getElementById("W1").value = round(W);
document.getElementById("W2").value = round(inch2mm(W));
document.getElementById("H1").value = round(H);
document.getElementById("H2").value = round(inch2mm(H));
document.getElementById("D").value = round(TR*inch2mm(W));
}
function calcD2() {
D = document.getElementById("D2").value;
W = ratioW*D; H = ratioH*D;
TR = document.getElementById("TR").value;
document.getElementById("D1").value = round(mm2inch(D));
document.getElementById("W1").value = round(mm2inch(W));
document.getElementById("W2").value = round(W);
document.getElementById("H1").value = round(mm2inch(H));
document.getElementById("H2").value = round(H);
document.getElementById("D").value = round(TR*W);
}
function calcW1() {
W = document.getElementById("W1").value;
D = W/ratioW; H = ratioH*W/ratioW;
TR = document.getElementById("TR").value;
document.getElementById("W2").value = round(inch2mm(W))+' ';
document.getElementById("D1").value = round(D);
document.getElementById("D2").value = round(inch2mm(D));
document.getElementById("H1").value = round(H);
document.getElementById("H2").value = round(inch2mm(H));
document.getElementById("D").value = round(TR*inch2mm(W));
}
function calcW2() {
W = document.getElementById("W2").value;
D = W/ratioW; H = ratioH*W/ratioW;
TR = document.getElementById("TR").value;
document.getElementById("W1").value = round(mm2inch(W));
document.getElementById("D1").value = round(mm2inch(D));
document.getElementById("D2").value = round(D);
document.getElementById("H1").value = round(mm2inch(H));
document.getElementById("H2").value = round(H);
document.getElementById("D").value = round(TR*W);
}
function calcH1() {
H = document.getElementById("H1").value;
D = H/ratioH; W = ratioW*H/ratioH;
TR = document.getElementById("TR").value;
document.getElementById("H2").value = round(inch2mm(H));
document.getElementById("D1").value = round(D);
document.getElementById("D2").value = round(inch2mm(D));
document.getElementById("W1").value = round(W);
document.getElementById("W2").value = round(inch2mm(W));
document.getElementById("D").value = round(TR*inch2mm(W));
}
function calcH2() {
H = document.getElementById("H2").value;
D = H/ratioH; W = ratioW*H/ratioH;
TR = document.getElementById("TR").value;
document.getElementById("H1").value = round(mm2inch(H));
document.getElementById("D1").value = round(mm2inch(D));
document.getElementById("D2").value = round(D);
document.getElementById("W1").value = round(mm2inch(W));
document.getElementById("W2").value = round(W);
document.getElementById("D").value = round(TR*W);
}
function calcD() {
D = document.getElementById("D").value;
TR = document.getElementById("TR").value;
W = D / TR;
document.getElementById("W2").value = round(W);
calcW2();
}
function calcTR() {
TR = document.getElementById("TR").value;
W = document.getElementById("W2").value;
document.getElementById("D").value = round(TR*W);
}
</SCRIPT>
<center>
<table border = 0 cellspacing=0 cellpadding=1 BGCOLOR="ffddaa">
<tr><td colspan = 2> </td></tr>
<tr><td colspan = 2>
<font face = "arial"><b>
Calculate size of display or projection </b><br></font>
</td></tr>
<tr><td colspan = 2> </td></tr>
<tr>
<td colspan = 2>
<INPUT type="button" id="R2" name="RR2" value="16:9 " onclick="ratio(16,9)" />
<INPUT type="button" id="R3" name="RR3" value="16:10" onclick="ratio(16,10)" />
<INPUT type="button" id="R4" name="RR4" value="4:3 " onclick="ratio(4,3)" />
<INPUT type="button" id="R5" name="RR5" value="5:4" onclick="ratio(5,4)" /><br>
</td>
</tr>
<tr>
<td> Ratio</td>
<td><INPUT type="text" id="R1x" value="" onBlur="calcR1()" onkeydown="if (event.keyCode == 13) calcR1()" size="5" />:
<INPUT type="text" id="R1y" value="" onBlur="calcR1()" onkeydown="if (event.keyCode == 13) calcR1()" size="5" />
</td>
</tr>
<tr>
<td> Diagonal</td>
<td><INPUT type="text" id="D1" value="27" onkeydown="if (event.keyCode == 13) calcD1()" onBlur="calcD1()" size="5" />" = <INPUT type="text" id="D2" value="" onkeydown="if (event.keyCode == 13) calcD2()" onBlur="calcD2()" size="5" /> mm </td>
</tr>
<tr>
<td> Height</td>
<td><INPUT type="text" id="H1" value='' onkeydown="if (event.keyCode == 13) calcH1()" onBlur="calcH1()" size="5" />" = <INPUT type="text" id="H2" value='' onkeydown="if (event.keyCode == 13) calcH2()" onBlur="calcH2()" size="5" /> mm </td>
</tr>
<tr>
<td> Width</td>
<td><INPUT type="text" id="W1" value='' onkeydown="if (event.keyCode == 13) calcW1()" onBlur="calcW1()" size="5" />" = <INPUT type="text" id="W2" value='' onkeydown="if (event.keyCode == 13) calcW2()" onBlur="calcW2()" size="5" /> mm </td>
</tr>
<tr>
<td> W / D</td>
<td><INPUT type="text" id="TR" value='1' onkeydown="if (event.keyCode == 13) calcTR()" onBlur="calcTR()" size="5" /> (Throw Ratio)</td>
</tr>
<tr>
<td> Distance</td>
<td><INPUT type="text" id="D" value='' onkeydown="if (event.keyCode == 13) calcD()" onBlur="calcD()" size="5" /> mm to the lens</td>
</tr>
<tr><td colspan = 2> </td></tr>
</table>
</center>
</body>
</html>
[/code]
