thallada/proximity-structures
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Toggle nodes & lines. Give up on 3D.

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This commit is contained in:
Tyler Hallada 2017-08-11 00:14:33 -04:00
parent 985128f6e2
commit b52a1ca72c
2 changed files with 42 additions and 18 deletions
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6
README.md
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@ -35,8 +35,10 @@ Scrolling your mouse will speed up or slow down time.
| 4 | makes points bouncy |
| 5 | makes points elastic |
| 6 | makes points overshoot |
| f | enables FPS counter |
| d | enables debug mode (including FPS counter) |
| f | toggles FPS counter |
| d | toggles debug mode (including FPS counter) |
| n | toggles display of nodes |
| l | toggles display of lines |
### Tweaking

54
js/proximity.js
View File

@ -98,8 +98,12 @@ var hoverMaxDistStart = 75; // initial value for the effect radius of a hover: p
var hoverMaxDistMax = 1000; // maximum value of hoverMaxDist
var hoverMaxDist = hoverMaxDistStart;
var hoverTweeningFn = 5; // specific tweening function to assign to points in effect radius
var zRange = 10; // maximum value for the range of possible z values for a point (unused right now)
var zRange = 50; // maximum value for the range of possible z coords for a point
var nodeImg = 'img/node.png'; // image file location for representing every point
var nodeImgRes = 100; // resolution of nodeImg file in pixels (aspect ratio should be square)
var minNodeDiameter = 3; // minimum pixel size of point on canvas when z coord is 0, maximum is this value plus zRange
var drawNodes = true; // whether to display circles at each point's current position
var drawLines = true; // whether to display lines connecting points if they are in connection distance
/* TWEENING FUNCTIONS */
@ -371,7 +375,8 @@ function getRandomPoints (numPoints, maxX, maxY, maxZ, tweeningFns) {
for (i = 0; i < numPoints; i++) {
x = randomInt(0, maxX - 1);
y = randomInt(0, maxY - 1);
z = randomInt(0, maxZ - 1); // TODO: do something with the 3rd dimension
// z = randomInt(0, maxZ - 1); // TODO: do something with the 3rd dimension
z = 0; // turns out that 3D is hard and I am a weak 2D boy
cycleStart = randomInt(0, cycleDuration - 1);
color = randomColor();
easingFn = tweeningFns[Math.floor(Math.random() * tweeningFns.length)];
@ -479,7 +484,7 @@ function redistributeCycles (points, oldCycleDuration, cycleDuration) {
/* DRAW FUNCTIONS */
function drawPolygon (polygon, points, counter, tweeningFns) {
var i, j, easingFn, relativeCount, avgColor, shadedColor, connectionCount, dist, connectivity, scale;
var i, j, easingFn, relativeCount, avgColor, shadedColor, connectionCount, dist, connectivity, scale, nodeDiameter;
// calculate vectors
for (i = 0; i < points.original.length; i++) {
easingFn = allTweeningFns[points.target[i][5]];
@ -520,10 +525,11 @@ function drawPolygon (polygon, points, counter, tweeningFns) {
}
avgColor = averageColor(points.tweened[i][4], points.tweened[j][4]);
shadedColor = shadeColor(avgColor, connectivity);
polygon.lineStyle(1, rgbToHex(shadedColor), 1);
polygon.moveTo(points.tweened[i][0], points.tweened[i][1]);
polygon.lineTo(points.tweened[j][0], points.tweened[j][1]);
if (drawLines) {
polygon.lineStyle(1, rgbToHex(shadedColor), 1);
polygon.moveTo(points.tweened[i][0], points.tweened[i][1]);
polygon.lineTo(points.tweened[j][0], points.tweened[j][1]);
}
connectionCount = connectionCount + 1;
}
}
@ -532,15 +538,16 @@ function drawPolygon (polygon, points, counter, tweeningFns) {
points.tweened[i][4] = shiftColor(points.tweened[i][4], disconnectedColorShiftAmt);
}
// draw vectors
polygon.lineStyle(1, rgbToHex(points.tweened[i][4]), 1);
// TODO: numbers here should be derived from a configuration variable
scale = 0.03;
sprites[i].scale.x = scale;
sprites[i].scale.y = scale;
sprites[i].x = points.tweened[i][0] - 1.5;
sprites[i].y = points.tweened[i][1] - 1.5;
sprites[i].tint = rgbToHex(points.tweened[i][4]);
if (drawNodes) {
// draw nodes
nodeDiameter = (points.tweened[i][2] + minNodeDiameter);
scale = nodeDiameter / nodeImgRes;
sprites[i].scale.x = scale;
sprites[i].scale.y = scale;
sprites[i].x = points.tweened[i][0] - (nodeDiameter / 2);
sprites[i].y = points.tweened[i][1] - (nodeDiameter / 2);
sprites[i].tint = rgbToHex(points.tweened[i][4]);
}
}
}
@ -752,6 +759,7 @@ document.addEventListener('mouseleave', function (e) {
/* KEYBOARD EVENTS */
window.addEventListener('keydown', function (e) {
var i;
if (e.keyCode === 37) { // left
pointShiftBiasX = -1;
} else if (e.keyCode === 38) { // up
@ -798,5 +806,19 @@ window.addEventListener('keydown', function (e) {
fpsEnabled = debug;
lastLoop = new Date();
}
} else if (e.keyCode === 78) { // n
if (drawNodes) {
for (i = 0; i < sprites.length; i++) {
sprites[i].visible = false;
}
drawNodes = false;
} else {
for (i = 0; i < sprites.length; i++) {
sprites[i].visible = true;
}
drawNodes = true;
}
} else if (e.keyCode === 76) { // l
drawLines = !drawLines;
}
});