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index060.html
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<!DOCTYPE html>
<html>
<head>
<!-- Load the Paper.js library -->
<script type="text/javascript" src="paper-full.js"></script>
<script type="text/javascript" src="config.js"></script>
<script type="text/javascript" src="declicam-simple.js"></script>
<!-- Define inlined PaperScript associate it with myCanvas -->
<script type="text/paperscript" canvas="myCanvas">
function switchMode() {
///debug
if (profileType==="radius") {
profileType="angle"
} else {
profileType="radius"
}
console.log(profileType);
initVariables();
}
// Cam/follower mechanism simulator by Jumpjack
// 0.6.0
// Added limits on x movement of flatpath markers
// 0.5.0
// Fixed major bugs of angle-driven profiles, but yet to be finished (angle file to be loaded/saved separately from cam file)
// Fixed some bugs in profile dragging management
// 0.4.0
// Added draft manual editing of flat profile, to be fizxed first marker
// 0.3.0
// Added rotating follower; use profileType at beginning of source to change follower type.
// 0.2.1
// Bugfixes for JSON import
// Bugfixes for profile smoothing
// 0.2.0
// Fixed bug of center hole not at center
// Fixed bug of cam profile drawn from top/border rather than from bottom/center
// Fixed bug of reversed cam rotation
// Added circular zoom feature
// Added full calculation at once of pressure angle curve (realtime and commanded)
// 0.1.5
// Added reference hole at center
// Version 0.1.4
// Added pressure angle path (hence circular cam moved to the right to get some space)
// Fixed bug of bad calculation of follower contact point;
// Added orange colorization for invalid concatc point of follower
// Added cam eccentricity (= follower horizontal offset); to do: fix flat path marker for eccentricity !=0
//
// Version 0.1.3
// Added flat path markers
// Added display of rotation angle value
// Added slider for manual rotation
// Added import/export SVG
// Grouped import/export buttons
// Cleaned up code
// Increased resolution of circular path (indepdendent of flat path resolution)
// Version 0.1.2
// Added exporting to SVG format.
// Please use one of these servies to convert to STL for 3d printing:
// https://rawgit.com/ryancalme/svg-to-stl/master/SVGtoSTL.html (source: https://github.com/rcalme/svg-to-stl )
// http://svg2stl.com/
// Version 0.1.1
// Added pressure angle
// Version 0.1.0 - First public version - 11/11/2021
// To do:
// editable flat path;
// export in SVG format;
// export in STL format;
// tunable rotation speed/direction;
// add speed chart, angle chart, acceleration chart,...
// Known problems:
// Can't handle properly two points at same angle in flat path
///////////////////////////////////////////////////////////////
// Init internal variables and constants:
profileType="radius"; // radius/angle
ANGLE_OFFSET = -90; // 90: Internally used to have the cam profile starting at top rather than at right
CAM_RADIUS = 200;
CAM_CENTER_X = 600;
CAM_CENTER_Y = 230;
GRID_X_OFFSET = 25;
GRID_Y_OFFSET = 25;
PRESSURE_ANGLE_Y_OFFSET = 340;
ANGLE_Y_OFFSET = 580; // Top coordinate of external follower angle profile
var BASE_CAM_RADIUS = 10; // debug: to be used somewhere else to check for cam validity
DECLI_TOLERANCE = 5;
decliOffset = 24;
rotationAngle=0;
flatPathPointMarker = [];
flatPathPoint = null;
flatPath = [];
selectedSegmentIndex = 0;
circleHit = false;
prevA = 0;
camPath = null;
lastCircle = null;
prevCircle = null;
nextCircle = null;
decliValues = [
{"x" : 0, "y" : -23.085910996832},
{"x" : 30, "y" : -18.0427776798567},
{"x" : 60, "y" : -8.29370504807597},
{"x" : 90, "y" : 4.01682425052934},
{"x" : 120, "y" : 14.9008874723579},
{"x" : 150, "y" : 22.0396245665871},
{"x" : 180, "y" : 23.1204841125486},
{"x" : 210, "y" : 18.1710307535317},
{"x" : 240, "y" : 8.1046087060629},
{"x" : 270, "y" : -3.81782448237535},
{"x" : 300, "y" : -15.0561830491583},
{"x" : 330, "y" : -21.9698675820173}
];
CAM_WIDTH = config.pathWidth;
CAM_LINE_COLOR = config.lineColor;
CAM_FILL_COLOR = config.fillColor;
CAM_POINTS_COLOR = config.pointsColor;
CAM_FLATPATH_COLOR = config.flatpathColor;
CAM_FLATPATH_POINTS_COLOR = config.flatpathPointsColor;
CAM_FLATPATH_WIDTH = config.flatpathWidth;
CIRCULAR_PRECISION = 1;
FOLLOWER_LENGTH = config.followerLength;
FOLLOWER_COLOR = config.followerColor;
FOLLOWER_WIDTH = config.followerWidth;
OSCILLATING_FOLLOWER_COLOR = config.followerColor; // debug
OSCILLATING_FOLLOWER_WIDTH = 1; // debug
OSCILLATING_FOLLOWER_LENGTH = 120;
followerOffsetX = config.initialFollowerOffsetX; // Modifiable by slider
followerOffsetY = config.initialFollowerOffsetY; // Modifiable by slider, not implemented in 0.6.0
FOLLOWER_TOP = new Point(CAM_CENTER_X + followerOffsetX, CAM_CENTER_Y + followerOffsetY - CAM_RADIUS);
FOLLOWER_BOTTOM = new Point(CAM_CENTER_X + followerOffsetX, CAM_CENTER_Y + followerOffsetY - CAM_RADIUS - FOLLOWER_LENGTH);
MAX_PRESSURE = config.maxPressure;
NORMAL_COLOR = config.normalColor;
NORMAL_WIDTH = config.normalWidth;
ZERO_ZERO = new Point(GRID_X_OFFSET, GRID_Y_OFFSET);
UPPER_POINT = new Point(GRID_X_OFFSET, GRID_Y_OFFSET + CAM_RADIUS);
BOTTOM = new Point(GRID_X_OFFSET + CAM_CENTER_X, GRID_Y_OFFSET + CAM_CENTER_Y + 200);
FLAT_PROFILE_ORIGIN = new Point(GRID_X_OFFSET, GRID_Y_OFFSET + CAM_RADIUS);
// Oscillating follower prototype:
var oscillatingCenterX = CAM_CENTER_X - 120;
var oscillatingCenterY = CAM_CENTER_Y - 80;
var oscillatingPivot = {x : oscillatingCenterX, y: oscillatingCenterY}
angVal = 0;
var pressureAngleCalculated = false;
document.getElementById("btnStart").addEventListener("click", startRotation);
document.getElementById("btnStop").addEventListener("click", stopRotation);
document.getElementById("btnReset").addEventListener("click", resetRotation);
document.getElementById("btnShow").addEventListener("click", toggleCamSelection);
document.getElementById("fileinput").addEventListener("change", loadFile);
//document.getElementById("fileinputAngle").addEventListener("change", loadFileAngle);
document.getElementById("SVGfileinput").addEventListener("change", importSVG);
document.getElementById("btnExportSVG").addEventListener("click", exportSVG);
document.getElementById("btnSave").addEventListener("click", saveCam);
document.getElementById("rngRotation").addEventListener("change", rotateBySlider);
document.getElementById("rngRotation").addEventListener("input", rotateBySlider);
document.getElementById("btnGrid").addEventListener("click", toggleCircularGrid);
document.getElementById("rngFollowerOffset").addEventListener("change", moveFollower);
document.getElementById("rngFollowerOffset").addEventListener("input", moveFollower);
document.getElementById("btnFollowerReset").addEventListener("click", function () {console.log("1");rngFollowerOffset.value = 0; moveFollower() });
document.getElementById("btnRecalcPressure").addEventListener("click", fullRotation);
document.getElementById("btnSmooth").addEventListener("click", function () {console.log("2"); flatPath.smooth({ type: 'continuous' }); createCam("smooth");});
document.getElementById("btnDebug").addEventListener("click", switchMode);
document.getElementById("btnReload").onclick=function() {
update("RELOAD");
};
document.getElementById("rngZoom").oninput=function() {
update("ZOOM");
};
document.getElementById("rngOffset").oninput=function() {
update("ZOOM");
};
//createObjects();
initVariables(); // cam is created here
//fullRotation();
//// END OF SCRIPT ////
/////////////////////////////////////////////////////
function createObjects() {
project.activeLayer.removeChildren();
flatPath = new Path();
follower = new Path();
oscillatingFollower = new Path();
normalVector = new Path();
camPath = new Path();
camStaticReference = new Path.Circle();
verticalLine = new Path();
verticalLine.strokeColor = '#0000FF';
verticalLine.moveTo(GRID_X_OFFSET, GRID_Y_OFFSET);
verticalLine.add(GRID_X_OFFSET, GRID_Y_OFFSET + ANGLE_Y_OFFSET + 180);
verticalLine.bringToFront();
pressureAnglePath = new Path({
strokeColor: '#000000',
strokeWidth: 1,
visible:true
});
anglePath = new Path({
strokeColor: '#000000',
strokeWidth: 1,
visible:true
});
flatPathBall = new Path.Circle({
center : FLAT_PROFILE_ORIGIN.clone(),
radius : 5,
strokeColor : '#000000',
fillColor : '#00AA00'
});
// Tracker for oscillating follower angle path:
anglePointInitialY = ANGLE_Y_OFFSET + GRID_Y_OFFSET; // Vertical position in canvas
anglePointInitialPosition = new Point();
anglePointInitialPosition.x = GRID_X_OFFSET;
anglePointInitialPosition.y = anglePointInitialY;
anglePoint = new Path.Circle({
center : anglePointInitialPosition,
radius : 5,
strokeColor : '#000000',
fillColor : '#FFFF00'
});
// Tracker for pressure angle path:
pressureAnglePointInitialY = PRESSURE_ANGLE_Y_OFFSET + GRID_Y_OFFSET;
pressureAnglePointInitialPosition = new Point();
pressureAnglePoint = new Path.Circle({
center : pressureAnglePointInitialPosition,
radius : 5,
strokeColor : '#000000',
fillColor : '#FFFF00'
});
pressureAnglePointInitialPosition.x = GRID_X_OFFSET
pressureAnglePointInitialPosition.y = pressureAnglePointInitialY;
camStartPoint = new Point();
CSR = camStartPoint.clone();
origin = new Point(CAM_CENTER_X,CAM_CENTER_Y);
INITIAL_FOLLOWER = new Path([origin,origin]);
INITIAL_OSCILLATING_FOLLOWER = new Path([new Point(oscillatingPivot.x + OSCILLATING_FOLLOWER_LENGTH,oscillatingPivot.y), oscillatingPivot]);
// Invisible object, used internally to determine local radius of cam profile
// Intersector is the vertical line which crosses the flat path, and is used to determine "local cam radius"
intersectorStart = new Point(0 + GRID_X_OFFSET, CAM_RADIUS + GRID_Y_OFFSET);
intersectorEnd = new Point(0 + GRID_X_OFFSET, 0 + GRID_Y_OFFSET);
intersector = new Path([intersectorStart,intersectorEnd]);
// Invisibile object, static: a vertical line crossing the cam, used to determine follower contact point and the pressur angle
intersectorRayStart = new Point(CAM_CENTER_X + followerOffsetX, CAM_CENTER_Y + followerOffsetY + 100);
intersectorRayEnd = new Point(CAM_CENTER_X + followerOffsetX, CAM_CENTER_Y + followerOffsetY - CAM_RADIUS - 100);
intersectorRay = new Path([intersectorRayStart,intersectorRayEnd]);
createAnglePath();
createPressureAnglePath();
drawGrid({x:0, y:0}, {x:360, y:CAM_RADIUS}, 10, 10);
}
/// update -> init --> createCam
function initVariables() {
createObjects();
verticalLines = [];
radii = []; // Reference lines
radiiReference = [];
flatPathPointMarker = [];
allowRotation = false;
camCreated = false;
flatPath.name = "flatPath"
camPath.name = "camPath"
pressureAnglePath.name = "pressureAnglePath"
camStaticReference.visible=false;
normalVector.strokeColor = NORMAL_COLOR;
normalVector.strokeWidth = NORMAL_WIDTH;
minPressureAngle = 1000;
maxPressureAngle = -1000;
pointToAdd = null;
pressureAngle= 0;
prevX = 0;
prevY = 0;
contactExists = false;
camType = "JSON"; // Default preloaded cam
totAngle=1;
intersectorRay.strokeColor = '#000000';
camCreated = false;
assignCamCONSTANTS();
createCam();
fileContents.value = JSON.stringify(camData,null,4); // Display cam data in textarea
}
function drawMarkers() {
////
///debug
angVal = prevA
localAngle = totAngle;
if (localAngle < 0) localAngle += 360;
if (localAngle > 360) localAngle = 360 - localAngle;
pressureAngleCalculated = false;
calculatePressureAngle();
pressureAnglePoint.position.x = localAngle + GRID_X_OFFSET + 0;
pressureAnglePoint.position.y = pressureAnglePointInitialY + pressureAngle;
anglePoint.position.x = localAngle + GRID_X_OFFSET + 0;
anglePoint.position.y = prevA + ANGLE_Y_OFFSET + GRID_Y_OFFSET;//anglePointInitialY - angVal;
/*
flatPathBall.position.x = localAngle + GRID_X_OFFSET + 0;
flatPathBall.position.y = camData.segments[totAngle].point.y + CAM_RADIUS + GRID_Y_OFFSET;
flatPathBall.bringToFront();
*/
verticalLine.segments[0].point.x = localAngle + GRID_X_OFFSET;
verticalLine.segments[1].point.x = localAngle + GRID_X_OFFSET;
verticalLine.bringToFront();
}
function createAnglePath() {
anglePath.clear();
// Create a flat path; it will be updated in realtime during cam rotation:
for (var i=1; i < 360; i++) { // debug 1 o 0?
anglePath.add(new Point(360 - i + GRID_X_OFFSET, anglePointInitialY ));
}
drawTicks(GRID_X_OFFSET, ANGLE_Y_OFFSET + 12, anglePointInitialY, 23.7, 'Follower angle');
}
function createPressureAnglePath() {
pressureAnglePath.clear();
// Create a flat path; it will be updated in realtime during cam rotation:
for (var i=1; i < 360; i++) { // debug 1 o 0?
pressureAnglePath.add(new Point(360 - i + GRID_X_OFFSET, pressureAnglePointInitialY ));
}
drawTicks(GRID_X_OFFSET, PRESSURE_ANGLE_Y_OFFSET+13, pressureAnglePointInitialY, MAX_PRESSURE, 'Pressure Angle');
}
function drawTicks(x_off, y_off, initY, maxVal, label) {
// Draw ticks on left axis:
// Tick +90
dummy = new Path();
dummy.strokeColor = '#000000';
dummy.moveTo(new Point(0 + x_off, initY - 90 ));
dummy.add(new Point(360 + x_off, initY - 90 ));
dummy.add(new Point(360 + x_off, initY + 90 ));
dummy.add(new Point( 0 + x_off, initY + 90 ));
dummy.add(new Point( 0 + x_off, initY - 90 ));
var pressureText = new paper.PointText();
pressureText.content='+90';
pressureText.position.y = initY - 90 ;
// Tick Max
dummy = new Path();
dummy.strokeColor = '#FF0000';
dummy.moveTo(new Point(0 + x_off, initY - maxVal ));
dummy.add(new Point(360 + x_off, initY - maxVal ));
var pressureText = new paper.PointText();
pressureText.content='Max';
pressureText.position.y = initY - maxVal - 0 ;
// Tick -90
dummy = new Path();
dummy.strokeColor = '#000000';
dummy.moveTo(new Point(0 + x_off, initY ));
dummy.add(new Point(360 + x_off, initY ));
var pressureText = new paper.PointText();
pressureText.content='-90';
pressureText.position.y = initY + 90 ;
// Tick Min
dummy = new Path();
dummy.strokeColor = '#FF0000';
dummy.moveTo(new Point(0 + x_off, initY + maxVal ));
dummy.add(new Point(360 + x_off, initY + maxVal ));
var pressureText = new paper.PointText();
pressureText.content='Min';
pressureText.position.y = initY + maxVal - 0 ;//+ y_off ;
// Chart title:
dummy = new Path();
dummy.strokeColor = '#000000';
dummy.moveTo(new Point(0 + x_off, initY + 90 ));
dummy.add(new Point(360 + x_off, initY + 90 ));
var pressureText = new paper.PointText();
pressureText.content=label;
pressureText.position.x = x_off + 180;
pressureText.position.y = y_off -90 ;
}
function moveFollower() {
followerOffsetX = rngFollowerOffset.value*1;
follower.segments[0].point.x = FOLLOWER_TOP.x + followerOffsetX;
intersectorRay.segments[0].point.x = FOLLOWER_TOP.x + followerOffsetX;
follower.segments[1].point.x = FOLLOWER_TOP.x + followerOffsetX;
intersectorRay.segments[1].point.x = FOLLOWER_TOP.x + followerOffsetX;
normalVector.bringToFront();
if (chkPressReal.checked) {fullRotation()};
}
function importSVG() {
// Load SVG file containing definition of circular path //
var input, file, fr;
if (typeof window.FileReader !== 'function') {
alert("The file API isn't supported on this browser yet.");
return;
}
input = document.getElementById('SVGfileinput');
if (!input) {
alert("Um, couldn't find the fileinput element.");
}
else if (!input.files) {
alert("This browser doesn't seem to support the `files` property of file inputs.");
}
else if (!input.files[0]) {
}
else {
file = input.files[0];
fr = new FileReader();
fr.onload = processReceivedTextSVG;
fr.readAsText(file);
}
}
function processReceivedTextSVG(e) {
console.log("SVG loaded, importing...",e);
flatPath.remove();
camPath.clear();
camStaticReference.remove();
CSR.remove();
camStartPoint.remove();
for (var i=0; i< flatPathPointMarker.length; i++) {
flatPathPointMarker[i].remove();
}
var lines = e.target.result;
filename.innerHTML = SVGfileinput.value;
SVGfileinput.value="";
fileContentsSVG.value=lines;
fileContents.value = "";
rawPathStart = lines.indexOf("path");
rawPathStart = lines.indexOf("d=", rawPathStart+1) + 3;
rawPathEnd = lines.indexOf('"', rawPathStart+1) - 1;
rawPathLen = rawPathEnd - rawPathStart + 1;
rawPath = lines.substr(rawPathStart, rawPathLen);
try {
camPath = new Path(rawPath);
} catch (e){
alert("Invalid SVG file:" + e);
console.log("Invalid SVG file:" + e);
return -1;
}
camStartPoint = new Path.Circle({
center: startPosition,
radius: 5,
strokeColor: '#000000',
fillColor: '#FFFF00'
});
CSR = camStartPoint.clone()
// Cam first point:
camStart = new Point(startPosition.x, startPosition.y); // Define start position of circular cam path
camPath.moveTo(camStart); // Set first point of cam path to user-defined start position
camPath.position = origin;
camPath.strokeColor = CAM_LINE_COLOR;
camPath.selectedColor = CAM_POINTS_COLOR;
camPath.strokeWidth = CAM_WIDTH;
camPath.fillColor = CAM_FILL_COLOR;
camCreated = true;
camStaticReference = camPath.clone();
camStaticReference.visible=false;
camPath.visible = true;
camType = "SVG";
console.log("Cam SVG loading complete.");
}
function loadFile() {
// Load json file containing definition of flat path //
var input, file, fr;
if (typeof window.FileReader !== 'function') {
alert("The file API isn't supported on this browser yet.");
return;
}
input = document.getElementById('fileinput');
if (!input) {
alert("Um, couldn't find the fileinput element.");
}
else if (!input.files) {
alert("This browser doesn't seem to support the `files` property of file inputs.");
}
else if (!input.files[0]) {
}
else {
file = input.files[0];
try {
fr = new FileReader();
fr.onload = processReceivedText;
fr.readAsText(file);
} catch (e) {
alert("Error loading file");
console.log("Error loading file, " , e);
}
}
}
function loadFileAngle() {
console.log("Loading ANGLE file...");
// Load json file containing definition of flat path //
var input, file, fr;
if (typeof window.FileReader !== 'function') {
alert("The file API isn't supported on this browser yet.");
return;
}
input = document.getElementById('fileinputAngle');
if (!input) {
alert("Um, couldn't find the fileinput element.");
}
else if (!input.files) {
alert("This browser doesn't seem to support the `files` property of file inputs.");
}
else if (!input.files[0]) {
}
else {
file = input.files[0];
try {
fr = new FileReader();
fr.onload = processReceivedTextAngle;
fr.readAsText(file);
} catch (e) {
alert("Error loading file");
console.log("Error loading file, " , e);
}
}
}
function processReceivedText(e) {
console.log("Processing loaded JSON file...");
var lines = e.target.result;
console.log(e.target.result);
try {
camData = JSON.parse(lines);
fileContents.value = lines;
fileContentsSVG.value = "";
} catch (e){
alert("Invalid JSON file:" + e);
console.log("Invalid JSON file:" + e);
return -1;
}
flatPath.remove();
camPath.clear();
camStaticReference.remove();
CSR.remove();
camStartPoint.remove();
for (var i=0; i< flatPathPointMarker.length; i++) {
flatPathPointMarker[i].remove();
}
camCreated = false;
fileinput.value="";
console.log("Recreating cam from JSON...");
console.log("PRIMA=",camPath.segments.length);
assignCamCONSTANTS();
createCam();
resetRotation();
console.log("DOPO=",camPath.segments.length);
camPath.bringToFront();
camStartPoint.bringToFront();
camType = "JSON";
update("ZOOM");
}
function processReceivedTextAngle(e) { // to be implemented!
console.log("Processing loaded JSON file... (angle type)");
var lines = e.target.result;
console.log(e.target.result);
try {
angleData = JSON.parse(lines);
fileContentsAngle.value = lines;
fileContentsSVG.value = "";
} catch (e){
alert("Invalid JSON file:" + e);
console.log("Invalid JSON file:" + e);
return -1;
}
flatPath.remove();
camPath.clear();
camStaticReference.remove();
CSR.remove();
camStartPoint.remove();
for (var i=0; i< flatPathPointMarker.length; i++) {
flatPathPointMarker[i].remove();
}
camCreated = false;
fileinput.value="";
console.log("Recreating cam from JSON...");
console.log("PRIMA=",camPath.segments.length);
assignCamCONSTANTS();
/////////////////
createCam();
/////////////////
resetRotation();
console.log("DOPO=",camPath.segments.length);
camPath.bringToFront();
camStartPoint.bringToFront();
camType = "JSON";
update("ZOOM");
}
function saveCam () {
allowRotation = false;
resetRotation();
var filename = "cam.json";
var text = fileContents.value;
var blob = new Blob([text], {type:'text/plain'});
var link = document.createElement("a");
link.download = filename;
link.href = window.URL.createObjectURL(blob);
document.body.appendChild(link);
link.click();
setTimeout(function() {
document.body.removeChild(link);
window.URL.revokeObjectURL(link.href);
}, 100);
}
function update(updateType) {
// Security restrictions prevent from reloading a modified file without user intervention, hence "reload"
// is performed on temporary data shown on the page
if(updateType === "RELOAD") {
try {
// console.log("JSON REloaded, parsing...");
camData = JSON.parse(fileContents.value);
//console.log("cam data Reloaded: ", camData);
document.getElementById("spnStatus").innerHTML = "Cam data reloaded";
} catch (e){
document.getElementById("spnStatus").innerHTML = "Invalid JSON data:" + e.toString();
alert("Invalid JSON file:" + e);
console.log("Invalid JSON file:" + e);
return;
}
}
initVariables();
resetRotation();
camPath.bringToFront();
camPath.visible=true;
camStartPoint.bringToFront();
}
function assignCamCONSTANTS() {
CAM_ROTATION_SPEED = camData.rotSpeed;
CAM_STEPS_WIDTH = camData.stepsWidth;
ROTATION_DIRECTION = camData.rotationDir;
camPath.clear();
camPath.strokeColor = CAM_LINE_COLOR;
camPath.selectedColor = CAM_POINTS_COLOR;
camPath.strokeWidth = CAM_WIDTH;
camPath.fillColor = CAM_FILL_COLOR;
flatPath.clear();
flatPath.strokeColor = CAM_FLATPATH_COLOR;
flatPath.selectedColor = CAM_FLATPATH_POINTS_COLOR;
flatPath.strokeWidth = CAM_FLATPATH_WIDTH;
follower.remove();
follower = INITIAL_FOLLOWER.clone();
follower.segments[0].point = FOLLOWER_TOP;
follower.segments[1].point = FOLLOWER_BOTTOM;
follower.segments[0].point.x = FOLLOWER_TOP.x + followerOffsetX;
follower.segments[1].point.x = FOLLOWER_BOTTOM.x + followerOffsetX;
follower.strokeColor = FOLLOWER_COLOR;
follower.strokeWidth = FOLLOWER_WIDTH;
follower.bringToFront();
normalVector.bringToFront();
drawGrid({x:0, y:0}, {x:360, y:CAM_RADIUS}, 10, 10);
}
function startRotation() {
if (!camCreated) return -1;
allowRotation=true;
}
function stopRotation() {
if (!camCreated) return -1;
allowRotation=false;
}
function fullRotation() {
var temp = rngRotation.value * 1.0;
for (var i=1; i < 360; i += CAM_ROTATION_SPEED) {
rotateCam(ROTATION_DIRECTION * CAM_ROTATION_SPEED, "full");
}
rotateCam(temp, "full");
}
function rotateCam(angle, type) {
camPath.remove();
camPath = camStaticReference.clone();
camStartPoint.remove();
camStartPoint = CSR.clone();
if (type == "manual") {
totAngle = angle; // Manual --> absolute angle
rngRotation.value = totAngle;
} else {
// anim --> delta angle
totAngle += angle;
if (totAngle > 360) {
totAngle = totAngle - 360;
}
if (totAngle < 0) {
totAngle = totAngle + 360;
}
rngRotation.value = totAngle;
}
lblAngle.innerHTML = rngRotation.value;
spnCount.innerHTML = camPath.parent.children.length;
camPath.rotate(totAngle, origin);
/// DEBUG NOTE
// The rotation angle of the follower shall be an input to create the cam profile (camData.segments) in createCam(): given a rotation angle for rotating follower,
// which is the rdius of the cam? But in rotateCam() the cam profile shall determine the rotation of the rotating follower, which is then an output.
////
///// Rotate the rotating follower
//rotationAngle = interpolate(totAngle, decliValues) + decliValues[0].y; // Calculate interpolated value, given any rotation angle
oscillatingFollower.remove();
oscillatingFollower = INITIAL_OSCILLATING_FOLLOWER.clone();
oscillatingFollower.strokeColor = OSCILLATING_FOLLOWER_COLOR;
oscillatingFollower.strokeWidth = OSCILLATING_FOLLOWER_WIDTH;
intersectorCircle = new Path.Circle({
center : oscillatingPivot,
radius : OSCILLATING_FOLLOWER_LENGTH,
strokeColor : '#000000',
fillColor : '#44FF44'
});
intersectorCircle.visible=false;
followerWithCamIntersection = intersectorCircle.getIntersections(camPath)
console.log(0);
if (followerWithCamIntersection[0]) {
console.log("I=",followerWithCamIntersection);
if (followerWithCamIntersection[0].point) {
console.log(1);
x0 = followerWithCamIntersection[0].point.x;
y0 = followerWithCamIntersection[0].point.y;
}
console.log(2);
if (followerWithCamIntersection.length>0) {
console.log(3);
x1 = followerWithCamIntersection[1].point.x;
y1 = followerWithCamIntersection[1].point.y
};
} else {
// no intersections, error somewhere..
x0 = oscillatingPivot.x + 1;
y0 = oscillatingPivot.y + 1;
}
calculatedAngle = parseInt((Math.atan2((x0 - oscillatingPivot.x), (y0 - oscillatingPivot.y)) * 180/Math.PI).toFixed(0));
console.log(totAngle, calculatedAngle - 90);
oscillatingFollower.rotate(90-calculatedAngle, oscillatingPivot);
followerEdge = oscillatingFollower.segments[0].point;
oscillatingFollower.bringToFront();
///////////////
angVal = rotationAngle;
// Rotate reference lines
for (var i=0; i< radii.length; i++) {
if (radii[i]) {
radii[i].remove();
}
radii[i] = radiiReference[i].clone();
radii[i].strokeColor = "#FF0000";
radii[i].rotate(totAngle, origin);
}
if (type === "full") {
if (chkPressReal.checked) {
calculatePressureAngle(); // In case of full rotation at once, redraw pressure angle plot only if checkbox checked
} else {
// Don't draw
}
} else {
calculatePressureAngle();
}
y = oscillatingFollower.segments[0].point.y;
x = oscillatingFollower.segments[0].point.x;
indexPressure = 360 - (totAngle - 1);
if (indexPressure < 0) indexPressure = 0;
if (indexPressure >360 ) indexPressure = indexPressure - 360;
if ( pressureAngle < minPressureAngle) { minPressureAngle = pressureAngle}
if ( pressureAngle > maxPressureAngle) { maxPressureAngle = pressureAngle}
try {
pressureAnglePath.segments[indexPressure].point.y = pressureAnglePointInitialY + pressureAngle;
anglePath.segments[indexPressure].point.y = ANGLE_Y_OFFSET + calculatedAngle + GRID_Y_OFFSET -90 ;
} catch (e) {
//console.log("Warning, cannot update pressure angle curve: ", e);
}
indexPressure++;
if (indexPressure > 359) {
indexPressure = indexPressure - 360;
}
try {
pressureAnglePath.segments[indexPressure].point.y = pressureAnglePointInitialY + pressureAngle + 1;
anglePath.segments[indexPressure].point.y = ANGLE_Y_OFFSET + calculatedAngle -1 + GRID_Y_OFFSET -90;
//var tempX = pressureAngleCircles[indexPressure].getPosition().x;
//var tempY = pressureAnglePointInitialY + pressureAngle + 1;
//pressureAngleCircles[indexPressure].setPosition(tempX,tempY); // DEBUG
} catch (e) {
//console.log("Warning 2, cannot update pressure angle curve: ", e);
}
drawMarkers();
camStartPoint.rotate(totAngle, origin);
camPath.bringToFront();
camStartPoint.bringToFront();
setCircularGridVisibvility(gridToFront);
camStaticReference.visible=false;
camPath.visible = true;
normalVector.bringToFront();
oscillatingFollower.bringToFront();
if (profileType === "radius") {
oscillatingFollower.remove();
}
if (profileType === "angle") {
follower.remove();
}
}
function interpolate(angle, decliValues) {
for ( i = 0; i < decliValues.length - 1; i++) {
x1 = decliValues[i].x;
y1 = decliValues[i].y;
x2 = decliValues[i + 1].x;
y2 = decliValues[i + 1].y;
if (angle === x1) {
return y1; // Restituisce il valore di y1 se angle corrisponde a x1
} else if (angle === x2) {
return y2; // Restituisce il valore di y2 se angle corrisponde a x2
} else if (angle > x1 && angle < x2) {
// Calcola il valore interpolato di y
interpolatedY = y1 + ((angle - x1) / (x2 - x1)) * (y2 - y1);
return interpolatedY;
}
}
return null; // Restituisce null se angle non è nel range disponibile
}
function rotateBySlider() {
rotateCam(rngRotation.value * 1, "manual");
}
function toggleCamSelection() {
if (!camCreated) return -1;
camPath.fullySelected = !camPath.fullySelected;
flatPath.fullySelected = !flatPath.fullySelected;
}
function toggleCircularGrid() {
gridToFront = !gridToFront;
setCircularGridVisibvility(gridToFront)
}
function setCircularGridVisibvility(front){
// Rays:
for (var i=0; i < radii.length; i++) {
if (front) {
radii[i].bringToFront();
} else {
radii[i].sendToBack();
}
}
// Circles:
for (var i=0; i < gridCirclesCount; i++) {
if (front) {
gridCircles[i].bringToFront();
} else {
gridCircles[i].sendToBack();
}
}
}
function onFrame(event) {
///// At each frame rotate cam and update follower position ////