tex-projects/LaTeX-examples
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fixed some errors

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Martin Thoma 2013-12-14 00:20:46 +01:00
parent 76ec8c9cab
commit 7fdc530b6c
5 changed files with 283 additions and 12 deletions
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11
documents/math-minimal-distance-to-cubic-function/quadratic-min-visualization/quadratic-vis.js
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@ -78,7 +78,7 @@ function getColor(i, transparency) {
return color;
}
function drawQuadraticFunction(canvas) {
function drawFunction(canvas) {
var add = parseInt(document.getElementById("density").value);
context.beginPath();
@ -88,7 +88,6 @@ function drawQuadraticFunction(canvas) {
for (var xS=0; xS < canvas.width; xS+=add) {
var x = r(xS);
var y = getValue(x);
//context.fillRect(c(x), c(y, false), add/2, add/2);
context.lineTo(c(x, true), c(y, false));
}
@ -215,7 +214,7 @@ function drawBoard(canvas, mouseCoords, radius) {
context.canvas.height = window.innerHeight - 120;
context.clearRect(0, 0, canvas.width, canvas.height);
drawQuadraticFunction(canvas);
drawFunction(canvas);
if (document.getElementById("pDistance").checked) {
var add = parseInt(document.getElementById("density").value)+10;
for (var x=0; x < canvas.width; x+=add) {
@ -262,13 +261,13 @@ canvas.addEventListener('mousemove',
var x = r(mouseCoords.x, true).toFixed(3);
var y = r(mouseCoords.y, false).toFixed(3);
context.fillText("(" + x + ", " + y + ")", mouseCoords.x + 5, mouseCoords.y - 5);
var minX = findMin({"x": mouseCoords.x, "y": mouseCoords.y});
var minX = findMin({"x": r(mouseCoords.x,true), "y": r(mouseCoords.y,false)});
var minY = getValue(minX);
context.beginPath();
context.moveTo(c(minX, true), c(minY, false), false);
context.moveTo(c(minX,true), c(minY, false));
context.lineTo(mouseCoords.x, mouseCoords.y, false);
context.stroke();
var minRadius = getDist({"x":x, "y":y}, minX);
var minRadius = euklideanDist({"x": r(mouseCoords.x,true), "y": r(mouseCoords.y,false)}, {"x":minX,"y":minY});
/* Draw circle */
drawEllipse(mouseCoords.x, mouseCoords.y, minRadius*STRETCH_X, minRadius*STRETCH_Y);