fixed transformVec, oneLineSummary

[ronhippler]

No description provided.

[malgorithms]

I think the change to transformVec is wrong:

transformVec: (a) ->
     # transforms a 2-item array in place
    @transformPair(a[0], a[1])

It wouldn't change it "in place" as the function is supposed to do. transformVec is supposed to modify the array that's passed to it, not return the result.

Here's the original:

transformVec: (a) ->
     # transforms a 2-item array in place
    t0 = @m00 * a[0] + @m01 * a[1] + @v0
    t1 = @m10 * a[0] + @m11 * a[1] + @v1
    a[0] = t0
    a[1] = t1

If you want it to return the modified array, you could add one more line to the bottom setting the return value to the input.

[ronhippler]

yes i know. I tried it again and now it works, don't know what I missed first.

[ronhippler]

now its again in place and the summery is fixed.

[malgorithms]

I'm a little confused about this change. The printout says "scale = " and then it was previously printing getXScale() and getYScale(), but after your change it says "scale =" and then prints the center. Can you explain?

[ronhippler]

There is no function getXScale(), so I thought it was a typo. But now I think its unnecessary or rather not possible to print the scale from the matrix. Wouldn't it be better to leave the printing of the scale?