scratchfoundation/paper.js
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Move the debug helper functions to the test file for now.

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hkrish 2013-05-20 19:21:32 +02:00
parent 3e8c6300bc
commit 254de9e453
1 changed files with 149 additions and 72 deletions
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79
fatline/intersectTests.js
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@ -501,7 +501,8 @@ function doRandomTests( testdata ){
ixsfat = getIntersections2( p1, p2 );
t2 = (getTimestamp() - st);
// Check against paperjs output
var found = 0, tol = 1;
// tol - tolerence for computed points with in 1/10 th of a pixel
var found = 0, tol = 0.1;
if( ixsfat.length === ixspaper.length ){
for(i=0, l=ixsfat.length; i<l; i++){
pa = ixsfat[i].point;
@ -747,3 +748,79 @@ function annotateCurve( crv, t, c, tc, remove ) {
view.draw();
}
function drawFatline( v1 ) {
function signum(num) {
return ( num > 0 )? 1 : ( num < 0 )? -1 : 0;
}
var l = new Line( [v1[0], v1[1]], [v1[6], v1[7]], false );
var p1 = new Point( v1[2], v1[3] ), p2 = new Point( v1[4], v1[5] );
var d1 = l.getSide( p1 ) * l.getDistance( p1 ) || 0;
var d2 = l.getSide( p2 ) * l.getDistance( p2 ) || 0;
var dmin, dmax;
if( d1 * d2 > 0){
// 3/4 * min{0, d1, d2}
dmin = 0.75 * Math.min( 0, d1, d2 );
dmax = 0.75 * Math.max( 0, d1, d2 );
} else {
// 4/9 * min{0, d1, d2}
dmin = 4 * Math.min( 0, d1, d2 ) / 9.0;
dmax = 4 * Math.max( 0, d1, d2 ) / 9.0;
}
var ll = new Path.Line( v1[0], v1[1], v1[6], v1[7] );
window.__p3.push( ll );
window.__p3[window.__p3.length-1].style.strokeColor = new Color( 0,0,0.9, 0.8);
var lp1 = ll.segments[0].point;
var lp2 = ll.segments[1].point;
var pm = l.vector, pm1 = pm.rotate( signum( dmin ) * -90 ), pm2 = pm.rotate( signum( dmax ) * -90 );
var p11 = lp1.add( pm1.normalize( Math.abs(dmin) ) );
var p12 = lp2.add( pm1.normalize( Math.abs(dmin) ) );
var p21 = lp1.add( pm2.normalize( Math.abs(dmax) ) );
var p22 = lp2.add( pm2.normalize( Math.abs(dmax) ) );
window.__p3.push( new Path.Line( p11, p12 ) );
window.__p3[window.__p3.length-1].style.strokeColor = new Color( 0,0,0.9);
window.__p3.push( new Path.Line( p21, p22 ) );
window.__p3[window.__p3.length-1].style.strokeColor = new Color( 0,0,0.9);
}
function plotD_vs_t( x, y, arr, arr2, v, dmin, dmax, tmin, tmax, yscale, tvalue ){
yscale = yscale || 1;
new Path.Line( x, y-100, x, y+100 ).style.strokeColor = '#aaa';
new Path.Line( x, y, x + 200, y ).style.strokeColor = '#aaa';
var clr = (tvalue)? '#a00' : '#00a';
if( window.__p3 ) window.__p3.map(function(a){a.remove();});
window.__p3 = [];
drawFatline( v );
window.__p3.push( new Path.Line( x, y + dmin * yscale, x + 200, y + dmin * yscale ) );
window.__p3[window.__p3.length-1].style.strokeColor = '#000'
window.__p3.push( new Path.Line( x, y + dmax * yscale, x + 200, y + dmax * yscale ) );
window.__p3[window.__p3.length-1].style.strokeColor = '#000'
window.__p3.push( new Path.Line( x + tmin * 190, y-100, x + tmin * 190, y+100 ) );
window.__p3[window.__p3.length-1].style.strokeColor = clr
window.__p3.push( new Path.Line( x + tmax * 190, y-100, x + tmax * 190, y+100 ) );
window.__p3[window.__p3.length-1].style.strokeColor = clr
for (var i = 0; i < arr.length; i++) {
window.__p3.push( new Path.Line( new Point( x + arr[i][0] * 190, y + arr[i][1] * yscale ),
new Point( x + arr[i][2] * 190, y + arr[i][3] * yscale ) ) );
window.__p3[window.__p3.length-1].style.strokeColor = '#999';
}
var pnt = [];
var arr2x = [ 0.0, 0.333333333, 0.6666666666, 1.0 ];
for (var i = 0; i < arr2.length; i++) {
pnt.push( new Point( x + arr2x[i] * 190, y + arr2[i] * yscale ) );
window.__p3.push( new Path.Circle( pnt[pnt.length-1], 2 ) );
window.__p3[window.__p3.length-1].style.fillColor = '#000'
}
// var pth = new Path( pnt[0], pnt[1], pnt[2], pnt[3] );
// pth.closed = true;
window.__p3.push( new Path( new Segment(pnt[0], null, pnt[1].subtract(pnt[0])), new Segment( pnt[3], pnt[2].subtract(pnt[3]), null ) ) );
window.__p3[window.__p3.length-1].style.strokeColor = clr
view.draw();
}