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Apply fixjsstyle to libtess.js

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This commit is contained in:
Tom Payne
2013-09-03 11:29:03 +02:00
parent 31f3e92494
commit f8efa7c6a4
21 changed files with 604 additions and 410 deletions
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62
src/libtess.js/normal.js
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@@ -40,6 +40,7 @@ libtess.normal = function() {
};
// TODO(bckenny): NOTE:
/* The "feature merging" is not intended to be complete. There are
* special cases where edges are nearly parallel to the sweep line
@@ -62,6 +63,7 @@ libtess.normal = function() {
*/
libtess.normal.S_UNIT_X_ = 1.0;
/**
* @type {number}
* @private
@@ -69,15 +71,16 @@ libtess.normal.S_UNIT_X_ = 1.0;
*/
libtess.normal.S_UNIT_Y_ = 0.0;
/**
* projectPolygon determines the polygon normal
* and projects vertices onto the plane of the polygon.
*
* @param {libtess.GluTesselator} tess [description]
* @param {libtess.GluTesselator} tess [description].
*/
libtess.normal.projectPolygon = function(tess) {
var computedNormal = false;
var norm = [0, 0, 0];
norm[0] = tess.normal[0]; // TODO(bckenny): better way to init these?
norm[1] = tess.normal[1];
@@ -97,8 +100,8 @@ libtess.normal.projectPolygon = function(tess) {
libtess.normal.normalize_(norm);
sUnit[i] = 0;
sUnit[(i+1)%3] = libtess.normal.S_UNIT_X_;
sUnit[(i+2)%3] = libtess.normal.S_UNIT_Y_;
sUnit[(i + 1) % 3] = libtess.normal.S_UNIT_X_;
sUnit[(i + 2) % 3] = libtess.normal.S_UNIT_Y_;
// Now make it exactly perpendicular
var w = libtess.normal.dot_(sUnit, norm);
@@ -108,20 +111,20 @@ libtess.normal.projectPolygon = function(tess) {
libtess.normal.normalize_(sUnit);
// Choose tUnit so that (sUnit,tUnit,norm) form a right-handed frame
tUnit[0] = norm[1]*sUnit[2] - norm[2]*sUnit[1];
tUnit[1] = norm[2]*sUnit[0] - norm[0]*sUnit[2];
tUnit[2] = norm[0]*sUnit[1] - norm[1]*sUnit[0];
tUnit[0] = norm[1] * sUnit[2] - norm[2] * sUnit[1];
tUnit[1] = norm[2] * sUnit[0] - norm[0] * sUnit[2];
tUnit[2] = norm[0] * sUnit[1] - norm[1] * sUnit[0];
libtess.normal.normalize_(tUnit);
} else {
// Project perpendicular to a coordinate axis -- better numerically
sUnit[i] = 0;
sUnit[(i+1)%3] = libtess.normal.S_UNIT_X_;
sUnit[(i+2)%3] = libtess.normal.S_UNIT_Y_;
sUnit[(i + 1) % 3] = libtess.normal.S_UNIT_X_;
sUnit[(i + 2) % 3] = libtess.normal.S_UNIT_Y_;
tUnit[i] = 0;
tUnit[(i+1)%3] = (norm[i] > 0) ? -libtess.normal.S_UNIT_Y_ : libtess.normal.S_UNIT_Y_;
tUnit[(i+2)%3] = (norm[i] > 0) ? libtess.normal.S_UNIT_X_ : -libtess.normal.S_UNIT_X_;
tUnit[(i + 1) % 3] = (norm[i] > 0) ? -libtess.normal.S_UNIT_Y_ : libtess.normal.S_UNIT_Y_;
tUnit[(i + 2) % 3] = (norm[i] > 0) ? libtess.normal.S_UNIT_X_ : -libtess.normal.S_UNIT_X_;
}
// Project the vertices onto the sweep plane
@@ -136,24 +139,26 @@ libtess.normal.projectPolygon = function(tess) {
}
};
/**
* Dot product.
* @private
* @param {Array.<number>} u [description]
* @param {Array.<number>} v [description]
* @return {number} [description]
* @param {Array.<number>} u [description].
* @param {Array.<number>} v [description].
* @return {number} [description].
*/
libtess.normal.dot_ = function(u, v) {
return u[0]*v[0] + u[1]*v[1] + u[2]*v[2];
return u[0] * v[0] + u[1] * v[1] + u[2] * v[2];
};
/**
* Normalize vector v
* @private
* @param {Array.<number>} v [description]
* @param {Array.<number>} v [description].
*/
libtess.normal.normalize_ = function(v) {
var len = v[0]*v[0] + v[1]*v[1] + v[2]*v[2];
var len = v[0] * v[0] + v[1] * v[1] + v[2] * v[2];
libtess.assert(len > 0);
len = Math.sqrt(len);
@@ -162,10 +167,11 @@ libtess.normal.normalize_ = function(v) {
v[2] /= len;
};
/**
* Returns the index of the longest component of vector v.
* @private
* @param {Array.<number>} v [description]
* @param {Array.<number>} v [description].
* @return {number} The index of the longest component.
*/
libtess.normal.longAxis_ = function(v) {
@@ -181,12 +187,13 @@ libtess.normal.longAxis_ = function(v) {
return i;
};
/**
* [computeNormal description]
*
* @private
* @param {libtess.GluTesselator} tess [description]
* @param {Array.<number>} norm [description]
* @param {libtess.GluTesselator} tess [description].
* @param {Array.<number>} norm [description].
*/
libtess.normal.computeNormal_ = function(tess, norm) {
// TODO(bckenny): better way to init these
@@ -238,10 +245,10 @@ libtess.normal.computeNormal_ = function(tess, norm) {
d2[0] = v.coords[0] - v2.coords[0];
d2[1] = v.coords[1] - v2.coords[1];
d2[2] = v.coords[2] - v2.coords[2];
tNorm[0] = d1[1]*d2[2] - d1[2]*d2[1];
tNorm[1] = d1[2]*d2[0] - d1[0]*d2[2];
tNorm[2] = d1[0]*d2[1] - d1[1]*d2[0];
var tLen2 = tNorm[0]*tNorm[0] + tNorm[1]*tNorm[1] + tNorm[2]*tNorm[2];
tNorm[0] = d1[1] * d2[2] - d1[2] * d2[1];
tNorm[1] = d1[2] * d2[0] - d1[0] * d2[2];
tNorm[2] = d1[0] * d2[1] - d1[1] * d2[0];
var tLen2 = tNorm[0] * tNorm[0] + tNorm[1] * tNorm[1] + tNorm[2] * tNorm[2];
if (tLen2 > maxLen2) {
maxLen2 = tLen2;
norm[0] = tNorm[0];
@@ -257,11 +264,12 @@ libtess.normal.computeNormal_ = function(tess, norm) {
}
};
/**
* [checkOrientation description]
*
* @private
* @param {libtess.GluTesselator} tess [description]
* @param {libtess.GluTesselator} tess [description].
*/
libtess.normal.checkOrientation_ = function(tess) {
// When we compute the normal automatically, we choose the orientation
@@ -274,7 +282,7 @@ libtess.normal.checkOrientation_ = function(tess) {
do {
area += (e.org.s - e.dst().s) * (e.org.t + e.dst().t);
e = e.lNext;
} while(e !== f.anEdge);
} while (e !== f.anEdge);
}
if (area < 0) {