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Merge pull request #250 from sbarman/shading

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interpolated functions
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sbarman 2011-07-11 16:46:23 -07:00
commit 9701f8d376
1 changed files with 22 additions and 3 deletions
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pdf.js
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@ -5365,9 +5365,28 @@ var PDFFunction = (function() {
}
return array;
},
constructInterpolated: function() {
TODO('unhandled type of function');
this.func = function () { return [ 255, 105, 180 ]; }
constructInterpolated: function(str, dict) {
var c0 = dict.get('C0') || [0];
var c1 = dict.get('C1') || [1];
var n = dict.get('N');
if (!IsArray(c0) || !IsArray(c1))
error('Illegal dictionary for interpolated function');
var length = c0.length;
var diff = [];
for (var i = 0; i < length; ++i)
diff.push(c1[i] - c0[i]);
this.func = function (args) {
var x = args[0];
var out = [];
for (var j = 0; j < length; ++j)
out.push(c0[j] + (x^n * diff[i]));
return out;
}
},
constructStiched: function() {
TODO('unhandled type of function');